National Library of Energy BETA

Sample records for lovelace respiratory research

  1. From: Eric Lovelace To: Congestion Study Comments Subject:

    Energy Savers [EERE]

    Eric Lovelace To: Congestion Study Comments Subject: Opposition to the establishment of National Interest Energy Transmission Corridors (NIETC"s) Date: Wednesday, October 08, 2014 6:25:37 PM Dear Sir or Madam: I am opposed to the establishment of National Interest Energy Transmission Corridors (NIETC's) for the following reasons. First, the easements place an undo burden on landowners on and near the transmission lines. The compensation cannot begin to cover the all of the losses, tangible

  2. Relationship Between Composition and Toxicity of Engine Emissions

    Broader source: Energy.gov [DOE]

    2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Lovelace Respiratory Research Instiitute

  3. Inhalation Toxicology Research Institute. Annual report, October 1, 1995--September 30, 1996

    SciTech Connect (OSTI)

    Bice, D.E.; Hahn, F.F.; Henderson, R.F.

    1996-12-01

    The Inhalation Toxicology Research Institute (ITRI) is a Government-owned facility leased and operated by the Lovelace Biomedical and Environmental Research Institute (LBERI) as a private, nonprofit research and testing laboratory. LBERI is an operating subsidiary of the Lovelace Respiratory Research Institute. Through September 30, 1996, ITRI was a Federally Funded Research and Development Center operated by Lovelace for the US Department of Energy (DOE) as a {open_quotes}Single Program Laboratory{close_quotes} within the DOE Office of Health and Environmental Research, Office of Energy Research. Work for DOE continues in the privatized ITRI facility under a Cooperative Agreement. At the time of publication, approximately 70% of the Institute`s research is funded by DOE, and the remainder is funded by a variety of Federal agency, trade association, individual industry, and university customers. The principal mission of ITRI is to conduct basic and applied research to improve our understanding of the nature and magnitude of the human health impacts of inhaling airborne materials in the home, workplace, and general environment. Institute research programs have a strong basic science orientation with emphasis on the nature and behavior of airborne materials, the fundamental biology of the respiratory tract, the fate of inhaled materials and the mechanisms by which they cause disease, and the means by which data produced in the laboratory can be used to estimate risks to human health. Disorders of the respiratory tract continue to be a major health concern, and inhaled toxicants are thought to contribute substantially to respiratory morbidity. As the country`s largest facility dedicated to the study of basic inhalation toxicology, ITRI provides a national resource of specialized facilities, personnel, and educational activities serving the needs of government, academia, and industry.

  4. Respiratory Protection Program

    Broader source: Energy.gov [DOE]

    This page is supported by the Respiratory Protection Program Administrators Group. The Respiratory Protection Program Administrators Group is a volunteer organization co-sponsored by the DOE Office of Worker Safety and Health Policy and the Energy Facility Contractors Group (EFCOG) to provide a forum for DOE and DOE contractor personnel to identify respiratory protection issues of concern to the DOE and pursue solutions to issues identified.

  5. Comparative Toxicity of Combined Particle and Semi-Volatile Organic

    Broader source: Energy.gov (indexed) [DOE]

    Fractioins of Gasoline and Diesel Emissions | Department of Energy 2 DEER Conference Presentation: Lovelace Respiratory Research Institute PDF icon 2002_deer_mauderly.pdf More Documents & Publications Relationship Between Composition and Toxicity of Engine Emission Samples Lung Toxicity and Mutagenicity of Emissions From Heavy-Duty Compressed Natural Gas (CNG)-Powered Vehicles Components Responsible for the Health Effects of Inhaled Engine Emissions

  6. Improved Radiation Dosimetry/Risk Estimates to Facilitate Environmental Management of Plutonium-Contaminated Sites

    SciTech Connect (OSTI)

    Scott, Bobby R.; Tokarskaya, Zoya B.; Zhuntova, Galina V.; Osovets, Sergey V.; Syrchikov, Victor A., Belyaeva, Zinaida D.

    2007-12-14

    This report summarizes 4 years of research achievements in this Office of Science (BER), U.S. Department of Energy (DOE) project. The research described was conducted by scientists and supporting staff at Lovelace Respiratory Research Institute (LRRI)/Lovelace Biomedical and Environmental Research Institute (LBERI) and the Southern Urals Biophysics Institute (SUBI). All project objectives and goals were achieved. A major focus was on obtaining improved cancer risk estimates for exposure via inhalation to plutonium (Pu) isotopes in the workplace (DOE radiation workers) and environment (public exposures to Pu-contaminated soil). A major finding was that low doses and dose rates of gamma rays can significantly suppress cancer induction by alpha radiation from inhaled Pu isotopes. The suppression relates to stimulation of the body's natural defenses, including immunity against cancer cells and selective apoptosis which removes precancerous and other aberrant cells.

  7. LANL spinoff receives NIH grant for respiratory disease diagnostic device

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LANL spinoff receives NIH grant LANL spinoff receives NIH grant for respiratory disease diagnostic device Mesa Tech has been awarded a grant to develop an inexpensive, instrument-free, nucleic-acid testing device to diagnose various respiratory diseases in record time. October 19, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable

  8. Multiplex detection of respiratory pathogens

    DOE Patents [OSTI]

    McBride, Mary; Slezak, Thomas; Birch, James M.

    2012-07-31

    Described are kits and methods useful for detection of respiratory pathogens (influenza A (including subtyping capability for H1, H3, H5 and H7 subtypes) influenza B, parainfluenza (type 2), respiratory syncytial virus, and adenovirus) in a sample. Genomic sequence information from the respiratory pathogens was analyzed to identify signature sequences, e.g., polynucleotide sequences useful for confirming the presence or absence of a pathogen in a sample. Primer and probe sets were designed and optimized for use in a PCR based, multiplexed Luminex assay to successfully identify the presence or absence of pathogens in a sample.

  9. Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Isotopes produced at Los Alamos National Laboratory are saving lives, advancing cutting-edge research and keeping the U.S. safe. Research thorium test foil A thorium test foil ...

  10. Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Research Isotopes produced at Los Alamos National Laboratory are saving lives, advancing cutting-edge research and keeping the U.S. safe. Research thorium test foil A thorium test foil target for proof-of-concept actinium-225 production In addition to our routine isotope products, the LANL Isotope Program is focused on developing the next suite of isotopes and services to meet the Nation's emerging needs. The LANL Isotope Program's R&D strategy is focused on four main areas (see

  11. NICS report links VOCs to respiratory problems

    SciTech Connect (OSTI)

    Kirschner, E.

    1992-04-22

    Children who live near the chemical plants of Kanawha Valley, WV, suffer more acute and chronic respiratory aliments than those farther away, says a Harvard University School of Public Health report. In the $1-million, five-year study commissioned by the National Institute for Chemical Studies (NICS:Charleston, WV) and funded by the Environmental Protection Agency, proximity to chemical plants that emit volatile organic compounds (VOCs) was linked to higher incidence of asthma, acute eye irritation, shortness of breath, and chronic cough. The researchers say they adjusted for most other factors, such as parental smoking and petroleum. {open_quotes}The research hypothesis was whether children in the valley had more symptoms,{close_quotes} says NICS president Paul Hill. {open_quotes}Yes, there is a difference.{close_quotes} The study showed that some ailments were up to 28% more prevalent in children in the valley than in other Kanawha County children.

  12. Hanford Site Respiratory Protection Program (HSRPP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DOE-0352 Revision 0 Hanford Site Respiratory Protection Program (HSRPP) Prepared for the U.S. Department of Energy Assistant Secretary for Environmental Management DOE-0352, Hanford Site Respiratory Protection Program (HSRPP) HSRPP Page 2 of 44 DOE-0352, Hanford Site Respiratory Protection Program (HSRPP) HSRPP Page 3 of 44 Contents 1.0 Purpose ............................................................................................................................. 6 2.0 Scope

  13. Research

    SciTech Connect (OSTI)

    1999-10-01

    Subjects covered in this section are: (1) PCAST panel promotes energy research cooperation; (2) Letter issued by ANS urges funding balance in FFTF restart consideration and (3) FESAC panel releases report on priorities and balance.

  14. Nitrogen dioxide and respiratory illnesses in infants

    SciTech Connect (OSTI)

    Samet, J.M.; Lambert, W.E.; Skipper, B.J.; Cushing, A.H.; Hunt, W.C.; Young, S.A.; McLaren, L.C.; Schwab, M.; Spengler, J.D. )

    1993-11-01

    Nitrogen dioxide is an oxidant gas that contaminates outdoor air and indoor air in homes with unvented gas appliances. A prospective cohort study was carried out to test the hypothesis that residential exposure to NO2 increases incidence and severity of respiratory illnesses during the first 18 months of life. A cohort of 1,205 healthy infants from homes without smokers was enrolled. The daily occurrence of respiratory symptoms and illnesses was reported by the mothers every 2 wk. Illnesses with wheezing or wet cough were classified as lower respiratory tract. Indoor NO2 concentrations were serially measured with passive samplers place in the subjects' bedrooms. In stratified analyses, illness incidence rates did not consistently increase with exposure to NO2 or stove type. In multivariate analyses that adjusted for potential confounding factors, odds ratios were not significantly elevated for current or lagged NO2 exposures, or stove type. Illness duration, a measure of illness severity, was not associated with NO2 exposure. The findings can be extended to homes with gas stoves in regions of the United States where the outdoor air is not heavily polluted by NO2.

  15. SU-E-J-261: Statistical Analysis and Chaotic Dynamics of Respiratory Signal of Patients in BodyFix

    SciTech Connect (OSTI)

    Michalski, D; Huq, M; Bednarz, G; Lalonde, R; Yang, Y; Heron, D

    2014-06-01

    Purpose: To quantify respiratory signal of patients in BodyFix undergoing 4DCT scan with and without immobilization cover. Methods: 20 pairs of respiratory tracks recorded with RPM system during 4DCT scan were analyzed. Descriptive statistic was applied to selected parameters of exhale-inhale decomposition. Standardized signals were used with the delay method to build orbits in embedded space. Nonlinear behavior was tested with surrogate data. Sample entropy SE, Lempel-Ziv complexity LZC and the largest Lyapunov exponents LLE were compared. Results: Statistical tests show difference between scans for inspiration time and its variability, which is bigger for scans without cover. The same is for variability of the end of exhalation and inhalation. Other parameters fail to show the difference. For both scans respiratory signals show determinism and nonlinear stationarity. Statistical test on surrogate data reveals their nonlinearity. LLEs show signals chaotic nature and its correlation with breathing period and its embedding delay time. SE, LZC and LLE measure respiratory signal complexity. Nonlinear characteristics do not differ between scans. Conclusion: Contrary to expectation cover applied to patients in BodyFix appears to have limited effect on signal parameters. Analysis based on trajectories of delay vectors shows respiratory system nonlinear character and its sensitive dependence on initial conditions. Reproducibility of respiratory signal can be evaluated with measures of signal complexity and its predictability window. Longer respiratory period is conducive for signal reproducibility as shown by these gauges. Statistical independence of the exhale and inhale times is also supported by the magnitude of LLE. The nonlinear parameters seem more appropriate to gauge respiratory signal complexity since its deterministic chaotic nature. It contrasts with measures based on harmonic analysis that are blind for nonlinear features. Dynamics of breathing, so crucial for 4D-based clinical technologies, can be better controlled if nonlinear-based methodology, which reflects respiration characteristic, is applied. Funding provided by Varian Medical Systems via Investigator Initiated Research Project.

  16. LANL spinoff receives NIH grant for respiratory disease diagnostic...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LANL spinoff receives NIH grant LANL spinoff receives NIH grant for respiratory disease diagnostic device Mesa Tech has been awarded a grant to develop an inexpensive, ...

  17. Respiratory disease in Utah coal miners

    SciTech Connect (OSTI)

    Rom, W.N.; Kanner, R.E.; Renzetti, A.D. Jr.; Shigeoka, J.W.; Barkman, H.W.; Nichols, M.; Turner, W.A.; Coleman, M.; Wright, W.E.

    1981-04-01

    Two hundred forty-two Utah underground coal miners volunteered to participate in a respiratory disease study. They were an older group (mean, 56 years of age) and had spent a mean of 29 years in the coal-mining industry. The prevalence of chronic bronchitis was 57%, and that of coal worker's pneumoconiosis, 25%; only one worker had progressive massive fibrosis. Significant impairment of pulmonary function was found among those with a history of cigarette smoking. Chronic bronchitis or coal worker's penumoconiosis among nonsmokers did not impair pulmonary function. There was a significant association among the nonsmokers between increasing exposure to coal dust and coal worker's pneumoconiosis, but not for changes in pulmonary function. Coal mine dust had a significant influence in causing the symptom complex of chronic cough and sputum production, and coal worker's pneumoconiosis.

  18. Chronic respiratory effects of indoor formaldehyde exposure

    SciTech Connect (OSTI)

    Krzyzanowski, M.; Quackenboss, J.J.; Lebowitz, M.D.

    1990-01-01

    The relation of chronic respiratory symptoms and pulmonary function to formaldehyde (HCHO) in homes was studied in a sample of 298 children (6-15 years of age) and 613 adults. HCHO measurements were made with passive samplers two one-week periods. Data on chronic cough and phlegm, wheeze, attacks of breathlessness, and doctor diagnoses of chronic bronchitis and asthma were collected with self-completed questionnaires. Peak expiratory flow rates (PEFR) were obtained during the evenings and mornings for up to 14 consecutive days for each individual. Significantly greater prevalence rates of asthma and chronic bronchitis were found in children from houses with HCHO levels 60-120 ppb than in those less exposed, especially in children also exposed to environmental tobacco smoke. In children, levels of PEFR linearly decreased with HCHO exposure, with estimated decrease due to 60 ppb of HCHO equivalent to 22% of PEFR level in nonexposed children.

  19. Respiratory disease in Utah coal miners

    SciTech Connect (OSTI)

    Rom, W.N.; Kanner, R.E.; Renzetti, A.D. Jr.; Shigeoka, J.W.; Barkman, H.W.; Nichols, M.; Turner, W.A.; Coleman, M.; Wright, W.E.

    1981-04-01

    Two hundred forty-two Utah underground coal miners volunteered to participate in a respiratory disease study. They were an older group (mean, 56 years of age) and had spent a mean of 29 years in the coal-mining industry. The prevalence of chronic bronchitis was 57%, and that of coal worker's pneumoconiosis, 25%; only one worker had progressive massive fibrosis. Significant impairment of pulmonary function was found among those with a history of cigarette smoking. Chronic bronchitis or coal worker's pneumoconiosis among nonsmokers did not impair pulmonary function. There was a significant association among the nonsmokers between increasing exposure to coal dust and coal worker's pneumoconiosis, but not for changes in pulmonary function. Coal mine dust had a significant influence in causing the symptom complex of chronic cough and sputum production, and coal worker's pneumoconiosis.

  20. RECOVERY OF A TRITIATED LANA SAMPLE FOR DOSE CONVERSION FACTOR DETERMINATION

    SciTech Connect (OSTI)

    Staack, G.

    2010-11-12

    The purpose of this work is to develop a technical basis for both estimating the dose of a worker exposed to respirable tritiated LaNi{sub 4.25}Al{sub 0.75} (LANA) and implementing hazard appropriate controls. Savannah River National Laboratory (SRNL) has agreed to provide Lovelace Respiratory Research Institute (LRRI) with a tritiated LANA sample. LRRI will determine the particle size distribution (PSD) as well as perform dissolution rate studies on the sample in serum ultrafiltrate (SUF), a simulated lung fluid. The rate of tritium release from the sample will be measured over a three month period. Tritium release rate information will be used to calculate a DCF for respirable tritiated LANA.

  1. Chronic respiratory effects of indoor formaldehyde exposure

    SciTech Connect (OSTI)

    Krzyzanowski, M.; Quackenboss, J.J.; Lebowitz, M.D. )

    1990-08-01

    The relation of chronic respiratory symptoms and pulmonary function to formaldehyde (HCHO) in homes was studied in a sample of 298 children (6-15 years of age) and 613 adults. HCHO measurements were made with passive samplers during two 1-week periods. Data on chronic cough and phlegm, wheeze, attacks of breathlessness, and doctor diagnoses of chronic bronchitis and asthma were collected with self-completed questionnaires. Peak expiratory flow rates (PEFR) were obtained during the evenings and mornings for up to 14 consecutive days for each individual. Significantly greater prevalence rates of asthma and chronic bronchitis were found in children from houses with HCHO levels 60-120 ppb than in those less exposed, especially in children also exposed to environmental tobacco smoke. In children, levels of PEFR decreased linearly with HCHO exposure, with the estimated decrease due to 60 ppb of HCHO equivalent to 22% of PEFR level in nonexposed children. The effects in asthmatic children exposed to HCHO below 50 ppb were greater than in healthy ones. The effects in adults were less evident: decrements in PEFR due to HCHO over 40 ppb were seen only in the morning, and mainly in smokers.

  2. Regional respiratory tract absorption of inhaled reactive gases

    SciTech Connect (OSTI)

    Miller, F.J.; Overton, J.H.; Kimbell, J.S.; Russell, M.L.

    1992-06-29

    Highly reactive gases present unique problems due to the number of factors which must be taken into account to determine regional respiratory tract uptake. The authors reviewed some of the physical, chemical, and biological factors that affect dose and that must be understood to interpret toxicological data, to evaluate experimental dosimetry studies, and to develop dosimetry models. Selected dosimetry experiments involving laboratory animals and humans were discussed, showing the variability and uptake according to animal species and respiratory tract region for various reactive gases. New experimental dosimetry approaches, such as those involving isotope ratio mass spectroscopy and cyclotron generation reactive gases, were discussed that offer great promise for improving the ability to study regional respiratory tract absorption of reactive gases. Various dosimetry modeling applications were discussed which demonstrate: the importance of airflow patterns for site-specific dosimetry in the upper respiratory tract, the influence of the anatomical model used to make inter- and intraspecies dosimetric comparisons, the influence of tracheobronchial path length on predicted dose curves, and the implications of ventilatory unit structure and volume on dosimetry and response. Collectively, these examples illustrate important aspects of regional respiratory tract absorption of inhaled reactive gases. Given the complex nature of extent and pattern of injury in the respiratory tract from exposure to reactive gases, understanding interspecies differences in the absorption of reactive gases will continue to be an important area for study.

  3. Research Techniques

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Techniques Research Techniques Print Coming Soon

  4. TH-E-17A-01: Internal Respiratory Surrogate for 4D CT Using Fourier...

    Office of Scientific and Technical Information (OSTI)

    E-17A-01: Internal Respiratory Surrogate for 4D CT Using Fourier Transform and Anatomical Features Citation Details In-Document Search Title: TH-E-17A-01: Internal Respiratory...

  5. Human torso phantom for imaging of heart with realistic modes of cardiac and respiratory motion

    DOE Patents [OSTI]

    Boutchko, Rostyslav; Balakrishnan, Karthikayan; Gullberg, Grant T; O'Neil, James P

    2013-09-17

    A human torso phantom and its construction, wherein the phantom mimics respiratory and cardiac cycles in a human allowing acquisition of medical imaging data under conditions simulating patient cardiac and respiratory motion.

  6. Effects of inhalable particles on respiratory health of children

    SciTech Connect (OSTI)

    Dockery, D.W.; Speizer, F.E.; Stram, D.O.; Ware, J.H.; Spengler, J.D.; Ferris, B.G. Jr.

    1989-03-01

    Results are presented from a second cross-sectional assessment of the association of air pollution with chronic respiratory health of children participating in the Six Cities Study of Air Pollution and Health. Air pollution measurements collected at quality-controlled monitoring stations included total suspended particulates (TSP), particulate matter less than 15 microns (PM15) and 2.5 microns (PM2.5) aerodynamic diameter, fine fraction aerosol sulfate (FSO4), SO2, O3, and No2. Reported rates of chronic cough, bronchitis, and chest illness during the 1980-1981 school year were positively associated with all measures of particulate pollution (TSP, PM15, PM2.5, and FSO4) and positively but less strongly associated with concentrations of two of the gases (SO2 and NO2). Frequency of earache also tended to be associated with particulate concentrations, but no associations were found with asthma, persistent wheeze, hay fever, or nonrespiratory illness. No associations were found between pollutant concentrations and any of the pulmonary function measures considered (FVC, FEV1, FEV0.75, and MMEF). Children with a history of wheeze or asthma had a much higher prevalence of respiratory symptoms, and there was some evidence that the association between air pollutant concentrations and symptom rates was stronger among children with these markers for hyperreactive airways. These data provide further evidence that rates of respiratory illnesses and symptoms are elevated among children living in cities with high particulate pollution. They also suggest that children with hyperreactive airways may be particularly susceptible to other respiratory symptoms when exposed to these pollutants.

  7. Navajo Coal Combustion and Respiratory Health Near Shiprock, New Mexico

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bunnell, Joseph E.; Garcia, Linda V.; Furst, Jill M.; Lerch, Harry; Olea, Ricardo A.; Suitt, Stephen E.; Kolker, Allan

    2010-01-01

    Indoormore » air pollution has been identified as a major risk factor for acute and chronic respiratory diseases throughout the world. In the sovereign Navajo Nation, an American Indian reservation located in the Four Corners area of the USA, people burn coal in their homes for heat. To explore whether/how indoor coal combustion might contribute to poor respiratory health of residents, this study examined respiratory health data, identified household risk factors such as fuel and stove type and use, analyzed samples of locally used coal, and measured and characterized fine particulate airborne matter inside selected homes. In twenty-five percent of homes surveyed coal was burned in stoves not designed for that fuel, and indoor air quality was frequently found to be of a level to raise concerns. The average winter 24-hour PM 2.5 concentration in 20 homes was 36.0  μ g/ m 3 . This is the first time that PM 2.5 has been quantified and characterized inside Navajo reservation residents' homes.« less

  8. Respiratory motion effects on whole breast helical tomotherapy

    SciTech Connect (OSTI)

    Moeckly, Steven R.; Lamba, Michael; Elson, Howard R.

    2008-04-15

    The effects of intrafraction respiratory motion on nonhelical intensity-modulated radiotherapy have been well addressed in the literature, both theoretically and experimentally. However, the consequences of respiratory motion on helical tomotherapy, for patient-specific treatment plans, are less well known. Parameters specific to this treatment modality such as pitch, gantry speed, and degree of modulation may play prominent roles in radiation delivery with respect to intrafraction respiratory motion. This phantom-based study specifically addressed the effects of intrafraction respiratory motion on whole breast helical tomotherapy. A device capable of driving an acrylic phantom with reproducible, one-dimensional, anterior-posterior motion resembling a sinusoid of 4.6 mm crest-trough amplitude was developed. A plan to irradiate the corner of an acrylic phantom using parameters typical of a whole breast helical tomotherapy technique was developed using the TomoTherapy Hi-Art-II System registered . The treatment was delivered to the phantom, with Kodak EDR2 film in the axial plane, for each of the following conditions: (i) phantom at 270 deg. initial sinusoidal phase and 12 cycles/min motion, (ii) phantom at 270 deg. initial sinusoidal phase and 18 cycles/min motion, and (iii)-(v) phantom at 18 cycles/min motion with 0 deg., 90 deg., and 180 deg. initial sinusoidal phases. A measure of technique reproducibility was also performed for several irradiations with the phantom static at 270 deg. initial sinusoidal phase. Films were processed using a Kodak MIN-R mammography film processor, scanned with a Vidar NXR-16 Dosimetry Pro scanner and analyzed with RIT113 v.4.2 software. Films were compared to a reference film irradiated under the conditions of no motion and 270 deg. sinusoidal phase. For all comparisons, 5% dose difference threshold, 3% dose difference and 2 mm distance-to-agreement gamma analysis, and isodose plots were generated. The results of this study show a small area of greater than 5% decrease in dose at the phantom's anterior surface and a 1.5-3 mm posterior-medial shift of isodose lines in the penumbral and apex regions of the PTV. Frequency and phase effects are apparent within the PTV where dose varies with high spatial frequency. As the reference film was produced by delivering the treatment plan to the phantom static and in the position corresponding to maximum expiration, results are representative of extreme deviations between planned and delivered dose with respect to sinusoidal motion of clinically relevant magnitudes and frequencies.

  9. Research Mentors

    Broader source: Energy.gov [DOE]

    Research mentors are scientists and engineers committed to support and guide the applicant's research activities during the Research Award. Research mentors must be currently conducting or...

  10. Respiratory effects of diesel exhaust in salt miners

    SciTech Connect (OSTI)

    Gamble, J.F.; Jones, W.G.

    1983-09-01

    The respiratory health of 259 white males working at 5 salt (NaCl) mines was assessed by questionnaire, chest radiographs, and air and He-O/sup 2/ spirometry. Response variables were symptoms, pneumoconiosis, and spirometry. Predictor variables included age, height, smoking, mine, and tenure in diesel-exposed jobs. The purpose was to assess the association of response measures of respiratory health with exposure to diesel exhaust. There were only 2 cases of Grade 1 pneumoconiosis, so no further analysis was done. Comparisons within the study population showed a statistically significant dose-related association of phlegm and diesel exposure. There was a nonsignificant trend for cough and dyspnea, and no association with spirometry. Age- and smoking-adjusted rates of cough, phlegm, and dyspnea were 145, 159, and 93% of an external comparison population. Percent predicted flow rates showed statistically significant reductions, but the reductions were small and there were no dose-response relations. Percent predicted FEV1 and FVC were about 96% of predicted.

  11. SU-E-T-452: Impact of Respiratory Motion On Robustly-Optimized Intensity-Modulated Proton Therapy to Treat Lung Cancers

    SciTech Connect (OSTI)

    Liu, W; Schild, S; Bues, M [Mayo Clinic Arizona, Phoenix, AZ (United States); Liao, Z; Sahoo, N [MD Anderson Cancer Center, Houston, TX (United States); Park, P [Scottsdale, GA (United States); Li, H [M.D. Anderson Cancer Center, Houston, TX (United States); Li, Y [Varian Medical Systems, Houston, TX (United States); Li, X; Shen, J [Mayo Clinic Arizona, Phoenix, AA (United States); Anand, A [Mayo Clinic Arizona, Phoenix (United States); Dong, L [Scripps Proton Therapy Center, San Diego, CA (United States); Zhu, X; Mohan, R [UT MD Anderson Cancer Center, Houston, TX (United States)

    2014-06-01

    Purpose: We compared conventionally optimized intensity-modulated proton therapy (IMPT) treatment plans against the worst-case robustly optimized treatment plans for lung cancer. The comparison of the two IMPT optimization strategies focused on the resulting plans' ability to retain dose objectives under the influence of patient set-up, inherent proton range uncertainty, and dose perturbation caused by respiratory motion. Methods: For each of the 9 lung cancer cases two treatment plans were created accounting for treatment uncertainties in two different ways: the first used the conventional Method: delivery of prescribed dose to the planning target volume (PTV) that is geometrically expanded from the internal target volume (ITV). The second employed the worst-case robust optimization scheme that addressed set-up and range uncertainties through beamlet optimization. The plan optimality and plan robustness were calculated and compared. Furthermore, the effects on dose distributions of the changes in patient anatomy due to respiratory motion was investigated for both strategies by comparing the corresponding plan evaluation metrics at the end-inspiration and end-expiration phase and absolute differences between these phases. The mean plan evaluation metrics of the two groups were compared using two-sided paired t-tests. Results: Without respiratory motion considered, we affirmed that worst-case robust optimization is superior to PTV-based conventional optimization in terms of plan robustness and optimality. With respiratory motion considered, robust optimization still leads to more robust dose distributions to respiratory motion for targets and comparable or even better plan optimality [D95% ITV: 96.6% versus 96.1% (p=0.26), D5% - D95% ITV: 10.0% versus 12.3% (p=0.082), D1% spinal cord: 31.8% versus 36.5% (p =0.035)]. Conclusion: Worst-case robust optimization led to superior solutions for lung IMPT. Despite of the fact that robust optimization did not explicitly account for respiratory motion it produced motion-resistant treatment plans. However, further research is needed to incorporate respiratory motion into IMPT robust optimization.

  12. Transportation Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    transportation-research TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Transportation Research Current Research Overview The U.S. Department of Transportation (USDOT) has established its only high-performance computing and engineering analysis research facility at Argonne National Laboratory to provide applications support in key areas of applied research and development for the USDOT community. The Transportation Research and

  13. Research Gallery

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Gallery Research Gallery Exhibits in this gallery capture Laboratory's leading-edge research in many areas of science and technology to help solve national problems...

  14. Pulmonary function and respiratory symptoms in potash workers

    SciTech Connect (OSTI)

    Graham, B.L.; Dosman, J.A.; Cotton, D.J.; Weisstock, S.R.; Lappi, V.G.; Froh, F.

    1984-03-01

    Over 94% of the workers in each of four Saskatchewan potash mines participated in a respiratory health surveillance program that included a questionnaire and pulmonary function tests. Compared with a nonexposed control group, potash workers had higher prevalences of cough, dyspnea, and chronic bronchitis but better pulmonary function. Prevalences of symptoms and pulmonary function abnormalities were similar among workers at the four mines tested and at the various job locations. Potash dust, diesel fumes, and other air contaminants may have an irritant effect that leads to the increased prevalences of cough and chronic bronchitis. Although we found no adverse effects of the potash mine environment on pulmonary function, these findings reflect a healthy worker effect or some selection process that makes the potash workers appear healthier in a cross-sectional study.

  15. Pulmonary function and respiratory symptoms in potash workers

    SciTech Connect (OSTI)

    Graham, B.L.; Dosman, J.A.; Cotton, D.J.; Weisstock, S.R.; Lappi, V.G.; Froh, F.

    1984-03-01

    Over 94% of the workers in each of four Saskatchewan potash mines participated in a respiratory health surveillance program that included a questionnaire and pulmonary function tests. Compared with a nonexposed control group, potash workers had higher prevalences of cough, dyspnea, and chronic bronchitis but better pulmonary function. Prevalences of symptoms and pulmonary function abnormalities were similar among workers at the four mines tested and at the various job locations. Potash dust, diesel fumes, and other air contaminants may have an irritant effect that leads to the increased prevalences of cough and chronic bronchitis. Although no adverse effects of the potash mine environment on pulmonary function were found, these findings reflect a healthy worker effect or some selection process that makes the potash workers appear healthier in a cross-sectional study.

  16. SU-E-J-63: Estimating the Effects of Respiratory Motion On Dose Heterogeneity for ITV-Based Treatments

    SciTech Connect (OSTI)

    Williams, C; Lewis, J

    2014-06-01

    Purpose: To quantify the relationship between the amount of dose heterogeneity in a treatment plan that uses an internal target volume (ITV) to account for respiratory motion and the true amount of heterogeneity in the dose delivered to the tumor contained within that ITV. Methods: We develop a convolution-based framework for calculating dose delivered to a tumor moving inside an ITV according to a common sinusoid-based breathing model including asymmetry. We model the planned ITV dose distribution as a centrally peaked analytic function approximating the profile of clinical stereotactic body radiotherapy treatments. Expressions for the minimum and maximum dose received by the tumor are derived and evaluated for a range of clinically relevant parameters. Results of the model are validated with phantom measurements using an ion chamber array. Results: An analytic expression is presented for the maximum and minimum doses received by the tumor relative to the planned ITV dose. The tumor dose heterogeneity depends solely on the ratio of tumor size to ITV size, the peak dose in the planned ITV dose distribution, and the respiratory asymmetry parameter. Under the assumptions of this model, using a typical breathing asymmetry parameter and a dose distribution with a fixed size ITV covered by the 100% line and with a 130% hotspot, the maximum dose to the tumor varies between 113%130%, and the minimum dose varies between 100%116% depending on the amount of tumor motion. Conclusion: This modeling exercise demonstrates the interplay between motion and dose heterogeneity. Tumors that exhibit large amounts of respiratory motion relative to their size will receive a more homogeneous dose and a larger minimum dose than would be inferred from the ITV dose distribution. This effect is not captured in current clinical treatment planning methods unless 4D dose calculation techniques are used. This work was partially supported by a Varian Medical Systems research grant.

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Submitter: Area of Research: Journal Reference: N/A

  18. Nitrogen dioxide and respiratory illness in children. Part I: Health outcomes

    SciTech Connect (OSTI)

    Samet, J.M.; Lambert, W.E.; Skipper, B.J.; Cushing, A.H.; Hunt, W.C.; Young, S.A.; McLaren, L.C.; Schwab, M.; Spengler, J.D. )

    1993-06-01

    We have carried out a prospective cohort study to test the hypothesis that exposure to nitrogen dioxide increases the incidence and severity of respiratory infections during the first 18 months of life. Between January 1988 and June 1990, 1,315 infants were enrolled into the study at birth and followed with prospective surveillance for the occurrence of respiratory infections and monitoring of nitrogen dioxide concentrations in their homes. The subjects were healthy infants from homes without smokers; they were selected with stratification by type of cooking stove at a ratio of four to one for gas and electric stoves. Illness experience was monitored by a daily diary of symptoms completed by the mother and a telephone interview conducted every two weeks. Illnesses with wheezing or wet cough were classified as involving the lower respiratory tract; all other respiratory illnesses were designated as involving the upper respiratory tract. Exposure to nitrogen dioxide was estimated by two-week average concentrations measured in the subjects' bedrooms with passive samplers. This analysis is limited to the 1,205 subjects completing at least one month of observation; of these, 823 completed the full protocol, contributing 82.8% of the total number of days during which the subjects were under observation. Incidence rates for all respiratory illnesses, all upper respiratory illness, all lower respiratory illnesses, and lower respiratory illness further divided into those with any wheezing, or wet cough without wheezing, were examined within strata of nitrogen dioxide exposure at the time of the illness, nitrogen dioxide exposure during the prior month, and type of cooking stove. Consistent trends of increasing illness incidence rates with increasing exposure to nitrogen dioxide were not evident for either the lagged or unlagged exposure variables.

  19. Spirometry variability criteria--association with respiratory morbidity and mortality in a cohort of coal miners

    SciTech Connect (OSTI)

    Kellie, S.E.; Attfield, M.D.; Hankinson, J.L.; Castellan, R.M.

    1987-03-01

    To clarify the association between spirometry variability and respiratory morbidity and mortality, the authors analyzed data for miners examined in the first round of the National Coal Study, 1969-1971, and they compared groups of miners who failed with those who met each of two spirometry variability criteria: a 5% criterion recommended by the American Thoracic Society, and a 200 ml criterion used in prior research studies. Compared with miners who met the 5% criterion (the best two forced vital capacities must be within 5% or 100 ml of one another), the group that failed had a lower mean for forced expiratory volume in one second (FEV1), and odds ratios for cough, phlegm, wheeze, shortness of breath, and death of 1.75, 1.67, 1.76, 2.71, and 1.30, respectively. The findings for the 200 ml criterion (the best two FEV1s must be within 200 ml of one another) were somewhat different. The group that failed versus the group that met this criterion had a higher mean for FEV1, and odds ratios for cough, phlegm, wheeze, shortness of breath, and death of 1.13, 1.07, 1.15, 1.43, and 0.94, respectively. Although the findings differ for the two criteria, the findings demonstrate that increased spirometry variability is associated with poorer health.

  20. Research Highlights

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Highlights Form Submit a New Research Highlight Sort Highlights Submitter Title Research Area Working Group Submission Date DOE Progress Reports Notable Research Findings for 2001-2006 Office of Science Abstracts Database Research Highlights Summaries Research Highlights Members of ARM's science team are major contributors to radiation and cloud research. ARM investigators publish about 150 refereed journal articles per year, and ARM data are used in many studies published by other scientific

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rotstayn, L., Commonwealth Scientific and Industrial Research Organization Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Rotstayn, L.,...

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Chinese Researchers Report Reliable Method for Monitoring Soil Moisture Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Surface Properties...

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Testing and Comparing the Modified Anomalous Diffraction Approximation Submitter: Mitchell, D. L., Desert Research Institute Area of Research: Cloud DistributionsCharacterizations...

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a printable PDF Submitter: Schmid, B., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: ARM Climate Research...

  5. Research Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Research Projects Joint Los Alamos National LaboratoryUCSD Research Projects Collaborations between Los Alamos National Laboratory and the University of California at San...

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cloud Ensemble Simulation with the ARM IOP Data Submitter: Xu, K., NASA - Langley Research Center Area of Research: General Circulation and Single Column ModelsParameterizations ...

  7. Research Highlight

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    ARM Measurements Validate New Satellite Multilayer Cloud Remote Sensing Method Submitter: Minnis, P., NASA - Langley Research Center Area of Research: Cloud Distributions...

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to Terrestrial Radiation Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Area of Research: General Circulation and Single Column Models...

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fog and Rain in the Amazon For original submission and image(s), see ARM Research Highlights http:www.arm.govsciencehighlights Research Highlight The diurnal and seasonal...

  10. Passive cigarette smoke, coal heating, and respiratory symptoms of nonsmoking women in China

    SciTech Connect (OSTI)

    Pope, C.A. III Brigham Young Univ., Provo, UT ); Xu, X. )

    1993-09-01

    In this study the authors evaluated data from a sample of 973 never-smoking women, ages 20-40, who worked in three similar textile mills in Anhui Province, China. They compared prevalence rates of respiratory symptoms across homes with and without coal heating and homes with different numbers of smokers. Multiple logistic regression models that controlled for age, job title, and mill of employment were also estimated. Respiratory symptoms were associated with combined exposure to passive cigarette smoke and coal heating. Effects of passive cigarette smoke and coal heating on respiratory symptoms appeared to be nearly additive, suggesting a dose-response relationship between respiratory symptoms and home indoor air pollution from these two sources. The prevalence of chest illness, cough, phlegm, and shortness of breath (but not wheeze) was significantly elevated for women living in homes with both smokers and coal heating.

  11. Building-related risk factors and work-related lower respiratory symptoms in 80 office buildings

    SciTech Connect (OSTI)

    Mendell, M.J.; Naco, G.M.; Wilcox, T.G.; Sieber, W.K.

    2002-01-01

    We assessed building-related risk factors for lower respiratory symptoms in office workers. The National Institute for Occupational Safety and Health in 1993 collected data during indoor environmental health investigations of workplaces. We used multivariate logistic regression analyses to assess relationships between lower respiratory symptoms in office workers and risk factors plausibly related to microbiologic contamination. Among 2,435 occupants in 80 office buildings, frequent, work-related multiple lower respiratory symptoms were strongly associated, in multivariate models, with two risk factors for microbiologic contamination: poor pan drainage under cooling coils and debris in outside air intake. Associations tended to be stronger among those with a history of physician-diagnosed asthma. These findings suggest that adverse lower respiratory health effects from indoor work environments, although unusual, may occur in relation to poorly designed or maintained ventilation systems, particularly among previously diagnosed asthmatics. These findings require confirmation in more representative buildings.

  12. Association of residential dampness and mold with respiratory tract infections and bronchitis: a meta-analysis

    SciTech Connect (OSTI)

    Fisk, William J.; Eliseeva, Ekaterina A.; Mendell, Mark J.

    2010-11-15

    Dampness and mold have been shown in qualitative reviews to be associated with a variety of adverse respiratory health effects, including respiratory tract infections. Several published meta-analyses have provided quantitative summaries for some of these associations, but not for respiratory infections. Demonstrating a causal relationship between dampness-related agents, which are preventable exposures, and respiratory tract infections would suggest important new public health strategies. We report the results of quantitative meta-analyses of published studies that examined the association of dampness or mold in homes with respiratory infections and bronchitis. For primary studies meeting eligibility criteria, we transformed reported odds ratios (ORs) and confidence intervals (CIs) to the log scale. Both fixed and random effects models were applied to the log ORs and their variances. Most studies contained multiple estimated ORs. Models accounted for the correlation between multiple results within the studies analyzed. One set of analyses was performed with all eligible studies, and another set restricted to studies that controlled for age, gender, smoking, and socioeconomic status. Subgroups of studies were assessed to explore heterogeneity. Funnel plots were used to assess publication bias. The resulting summary estimates of ORs from random effects models based on all studies ranged from 1.38 to 1.50, with 95% CIs excluding the null in all cases. Use of different analysis models and restricting analyses based on control of multiple confounding variables changed findings only slightly. ORs (95% CIs) from random effects models using studies adjusting for major confounding variables were, for bronchitis, 1.45 (1.32-1.59); for respiratory infections, 1.44 (1.31-1.59); for respiratory infections excluding nonspecific upper respiratory infections, 1.50 (1.32-1.70), and for respiratory infections in children or infants, 1.48 (1.33-1.65). Little effect of publication bias was evident. Estimated attributable risk proportions ranged from 8% to 20%. Residential dampness and mold are associated with substantial and statistically significant increases in both respiratory infections and bronchitis. If these associations were confirmed as causal, effective control of dampness and mold in buildings would prevent a substantial proportion of respiratory infections.

  13. SU-E-T-113: Dose Distribution Using Respiratory Signals and Machine Parameters During Treatment

    SciTech Connect (OSTI)

    Imae, T; Haga, A; Saotome, N; Kida, S; Nakano, M; Takeuchi, Y; Shiraki, T; Yano, K; Yamashita, H; Nakagawa, K; Ohtomo, K

    2014-06-01

    Purpose: Volumetric modulated arc therapy (VMAT) is a rotational intensity-modulated radiotherapy (IMRT) technique capable of acquiring projection images during treatment. Treatment plans for lung tumors using stereotactic body radiotherapy (SBRT) are calculated with planning computed tomography (CT) images only exhale phase. Purpose of this study is to evaluate dose distribution by reconstructing from only the data such as respiratory signals and machine parameters acquired during treatment. Methods: Phantom and three patients with lung tumor underwent CT scans for treatment planning. They were treated by VMAT while acquiring projection images to derive their respiratory signals and machine parameters including positions of multi leaf collimators, dose rates and integrated monitor units. The respiratory signals were divided into 4 and 10 phases and machine parameters were correlated with the divided respiratory signals based on the gantry angle. Dose distributions of each respiratory phase were calculated from plans which were reconstructed from the respiratory signals and the machine parameters during treatment. The doses at isocenter, maximum point and the centroid of target were evaluated. Results and Discussion: Dose distributions during treatment were calculated using the machine parameters and the respiratory signals detected from projection images. Maximum dose difference between plan and in treatment distribution was −1.8±0.4% at centroid of target and dose differences of evaluated points between 4 and 10 phases were no significant. Conclusion: The present method successfully evaluated dose distribution using respiratory signals and machine parameters during treatment. This method is feasible to verify the actual dose for moving target.

  14. Effects of air pollution on the respiratory health of children: a cross-sectional study

    SciTech Connect (OSTI)

    Spinaci, S.; Arossa, W.; Bugiani, M.; Natale, P.; Bucca, C.; de Candussio, G.

    1985-09-01

    To investigate the effects of air pollution on the respiratory health of children, a subject of some controversy, a comparative study was undertaken of 2,385 school children who lived in central urban, peripheral urban, and suburban areas. Daily monitoring of sulfur dioxide and total suspended particle concentrations in all areas showed that pollutant concentrations in central and peripheral urban areas were above commonly accepted safety levels for respiratory health, while concentrations in the suburban area were within acceptable limits. A questionnaire administered to each mother assessed environmental exposure to pollutants in the household, the occurrence of respiratory symptoms as well as lung diseases as diagnosed by a physician, and general information. Children were interviewed about smoking habits and any acute respiratory symptoms. Children also performed standard lung function tests. Results showed that children from both urban areas had lessened pulmonary function and a higher prevalence of bronchial secretion with common colds than did those from the suburban area. These differences persisted after corrections for exposure to indoor pollutants, active or passive smoking, socioeconomic status, and sex. Parental cigarette smoking was related to a fall in forced expiratory volume in 1 second and an increased incidence of acute respiratory illnesses and chronic cough in children. Although boys had higher lung volumes and lower air flow, regression analysis showed no significant influence of the interactions sex-geographic area and sex-smoking on lung function. It was concluded that air pollution has a significant effect on the respiratory health of children.

  15. Daily air pollution effects on children's respiratory symptoms and peak expiratory flow

    SciTech Connect (OSTI)

    Vedal, S.; Schenker, M.B.; Munoz, A.; Samet, J.M.; Batterman, S.; Speizer, F.E.

    1987-06-01

    To identify acute respiratory health effects associated with air pollution due to coal combustion, a subgroup of elementary school-aged children was selected from a large cross-sectional study and followed daily for eight months. Children were selected to obtain three equal-sized groups: one without respiratory symptoms, one with symptoms of persistent wheeze, and one with cough or phlegm production but without persistent wheeze. Parents completed a daily diary of symptoms from which illness constellations of upper respiratory illness (URI) and lower respiratory illness (LRI) and the symptom of wheeze were derived. Peak expiratory flow rate (PEFR) was measured daily for nine consecutive weeks during the eight-month study period. Maximum hourly concentrations of sulfur dioxide, nitrogen dioxide, ozone, and coefficient of haze for each 24-hour period, as well as minimum hourly temperature, were correlated with daily URI, LRI, wheeze, and PEFR using multiple regression models adjusting for illness occurrence or level of PEFR on the immediately preceding day. Respiratory illness on the preceding day was the most important predictor of current illness. A drop in temperature was associated with increased URI and LRI but not with increased wheeze or with a decrease in level of PEFR. No air pollutant was strongly associated with respiratory illness or with level of PEFR, either in the group of children as a whole, or in either of the symptomatic subgroups; the pollutant concentrations observed, however, were uniformly lower than current ambient air quality standards.

  16. Research Mission

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Mission Research Mission NETL's Office of Research & Development is a national resource for fossil energy research and development, with a mission to create and expand the knowledge base that enables the safe, sustainable utilization of our abundant, domestic energy resources. In support of that mission, the onsite research effort: Develops solutions to key barriers to the implementation of emerging energy technologies. Explores transformational new concepts for next generation

  17. Biomarkers of acute respiratory allergen exposure: Screening for sensitization potential

    SciTech Connect (OSTI)

    Pucheu-Haston, Cherie M.; Copeland, Lisa B.; Vallanat, Beena; Boykin, Elizabeth; Ward, Marsha D.W.

    2010-04-15

    Effective hazard screening will require the development of high-throughput or in vitro assays for the identification of potential sensitizers. The goal of this preliminary study was to identify potential biomarkers that differentiate the response to allergens vs non-allergens following an acute exposure in naive individuals. Female BALB/c mice received a single intratracheal aspiration exposure to Metarhizium anisopliae crude antigen (MACA) or bovine serum albumin (BSA) in Hank's Balanced Salt Solution (HBSS) or HBSS alone. Mice were terminated after 1, 3, 6, 12, 18 and 24 h. Bronchoalveolar lavage fluid (BALF) was evaluated to determine total and differential cellularity, total protein concentration and LDH activity. RNA was isolated from lung tissue for microarray analysis and qRT-PCR. MACA administration induced a rapid increase in BALF neutrophils, lymphocytes, eosinophils and total protein compared to BSA or HBSS. Microarray analysis demonstrated differential expression of genes involved in cytokine production, signaling, inflammatory cell recruitment, adhesion and activation in 3 and 12 h MACA-treated samples compared to BSA or HBSS. Further analyses allowed identification of approx 100 candidate biomarker genes. Eleven genes were selected for further assessment by qRT-PCR. Of these, 6 demonstrated persistently increased expression (Ccl17, Ccl22, Ccl7, Cxcl10, Cxcl2, Saa1), while C3ar1 increased from 6-24 h. In conclusion, a single respiratory exposure of mice to an allergenic mold extract induces an inflammatory response which is distinct in phenotype and gene transcription from the response to a control protein. Further validation of these biomarkers with additional allergens and irritants is needed. These biomarkers may facilitate improvements in screening methods.

  18. A Community-Based Approach to Developing a Mobile Device for Measuring Ambient Air Exposure, Location, and Respiratory Health

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Rohlman, Diana; Syron, Laura; Hobbie, Kevin; Anderson, Kim A.; Scaffidi, Christopher; Sudakin, Daniel; Peterson, Elena S.; Waters, Katrina M.; Haynes, Erin; Arkin, Lisa; et al

    2015-08-15

    In west Eugene (Oregon), community research indicates residents are disproportionately exposed to industrial air pollution and exhibit increased asthma incidence. In Carroll County (Ohio), recent increases in unconventional natural gas drilling sparked air quality concerns. These community concerns led to the development of a prototype mobile device to measure personal chemical exposure, location, and respiratory function. Working directly with the environmental justice (EJ) communities, the prototype was developed to (1) meet the needs of the community and; (2) evaluate the use in EJ communities. The prototype was evaluated in 3 community focus groups (n=25) to obtain feedback on the prototypemore » and feasibility study design to evaluate the efficacy of the device to address community concerns. Focus groups were recorded and qualitatively analyzed with discrete feedback tabulated for further refinement. The prototype was improved by community feedback resulting in 8 alterations/additions to software and instructional materials. Overall, focus group participants were supportive of the device and believed it would be a useful environmental health tool. The use of focus groups ensured that community members were engaged in the research design and development of a novel environmental health tool. We found that community-based research strategies resulted in a refined device as well as relevant research questions, specific to the EJ community needs and concerns.« less

  19. A Community-Based Approach to Developing a Mobile Device for Measuring Ambient Air Exposure, Location, and Respiratory Health

    SciTech Connect (OSTI)

    Rohlman, Diana; Syron, Laura; Hobbie, Kevin; Anderson, Kim A.; Scaffidi, Christopher; Sudakin, Daniel; Peterson, Elena S.; Waters, Katrina M.; Haynes, Erin; Arkin, Lisa; Feezel, Paul; Kincl, Laurel

    2015-08-15

    In west Eugene (Oregon), community research indicates residents are disproportionately exposed to industrial air pollution and exhibit increased asthma incidence. In Carroll County (Ohio), recent increases in unconventional natural gas drilling sparked air quality concerns. These community concerns led to the development of a prototype mobile device to measure personal chemical exposure, location, and respiratory function. Working directly with the environmental justice (EJ) communities, the prototype was developed to (1) meet the needs of the community and; (2) evaluate the use in EJ communities. The prototype was evaluated in 3 community focus groups (n=25) to obtain feedback on the prototype and feasibility study design to evaluate the efficacy of the device to address community concerns. Focus groups were recorded and qualitatively analyzed with discrete feedback tabulated for further refinement. The prototype was improved by community feedback resulting in 8 alterations/additions to software and instructional materials. Overall, focus group participants were supportive of the device and believed it would be a useful environmental health tool. The use of focus groups ensured that community members were engaged in the research design and development of a novel environmental health tool. We found that community-based research strategies resulted in a refined device as well as relevant research questions, specific to the EJ community needs and concerns.

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SPartICus Submitter: Mishra, S., DOE - SunShot Initiative, AAAS S&T Policy Fellow Mitchell, D. L., Desert Research Institute Area of Research: General Circulation and Single...

  1. Research Areas

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    Research Areas Our Vision National User Facilities Research Areas In Focus Global Solutions ⇒ Navigate Section Our Vision National User Facilities Research Areas In Focus Global Solutions Biosciences The Biosciences Area forges multidisciplinary teams to solve national challenges in energy, environment and health issues; and to advance the engineering of biological systems for sustainable manufacturing. Biosciences Area research is coordinated through three divisions and is enabled by Berkeley

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Environmental Thermodynamics Affect Radiative Impact of Deep Convective Cloud Systems Submitter: Jensen, M., Brookhaven National Laboratory Area of Research: Atmospheric...

  3. Research Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LaboratoryNational Security Education Center Menu NSEC Educational Programs Los Alamos Dynamics Summer School Science of Signatures Advanced Studies Institute Judicial Science School SHM Data Sets and Software Research Projects Current Projects Past Projects Publications NSEC » Engineering Institute » Research Projects » Joint Los Alamos National Laboratory/UCSD research projects Past Research Projects Previous collaborations between Los Alamos National Laboratory and the University of

  4. Research Facility,

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    | Department of Energy Research Experience in Carbon Sequestration 2013 Now Accepting Applications Research Experience in Carbon Sequestration 2013 Now Accepting Applications March 12, 2013 - 1:43pm Addthis Washington, DC - Graduate students and early career professionals can gain hands-on field research experience in areas related to carbon capture and storage (CCS) by participating in the Research Experience in Carbon Sequestration (RECS) program. The initiative, supported by DOE's Office

  5. Current Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Current Research The U.S. Department of Transportation (USDOT) has established its only high-performance computing and engineering analysis research facility at Argonne National Laboratory to provide applications support in key areas of applied research and development for the USDOT community. The Transportation Research and Analysis Computing Center (TRACC) features a state-of-the-art massively parallel computer system, advanced scientific visualization capability, high-speed network

  6. Research Library

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LANL Research Library: delivering essential knowledge services for national security sciences since 1947 About the Research Library Mission We deliver agile, responsive knowledge services, connecting people with information, technology and resources. Vision Essential knowledge services for national security sciences. The Research Library provides extensive collections of books, journals, databases, patents and technical reports and offers literature searching, training and outreach services. The

  7. Hamilton study: distribution of factors confounding the relationship between air quality and respiratory health

    SciTech Connect (OSTI)

    Pengelly, L.D.; Kerigan, A.T.; Goldsmith, C.H.; Inman, E.M.

    1984-10-01

    Hamilton, Ontario is an industrial city with a population of 300,000 which is situated at the western end of Lake Ontario. Canada's two largest iron and steel mills are located here; the city historically has had relatively poor air quality, which has improved markedly in the last 25 years. Concern about the health effects of current air quality recently led us to carry out an epidemiological study of the effects of air pollution on the respiratory health of over 3500 school children. Respiratory health was measured by pulmonary function testing of each child, and by an assessment of each child's respiratory symptoms via a questionnaire administered to the parents. Previous studies had shown that other environmental factors (e.g. parental smoking, parental cough, socioeconomic level, housing, and gas cooking) might also affect respiratory health, and thus confound any potential relationships between health and air pollution. The questionnaire also collected information on many of these confounding factors. For the purposes of initial analysis, the city was divided into five areas in which differences in air quality were expected. In general, factors which have been associated with poor respiratory health were observed to be more prevalent in areas of poorer air quality.

  8. Respiratory health effects of the indoor environment in a population of Dutch children

    SciTech Connect (OSTI)

    Dijkstra, L.; Houthuijs, D.; Brunekreef, B.; Akkerman, I.; Boleij, J.S. )

    1990-11-01

    The effect of indoor exposure to nitrogen dioxide on respiratory health was studied over a period of 2 yr in a population of nonsmoking Dutch children 6 to 12 yr of age. Lung function was measured at the schools, and information on respiratory symptoms was collected from a self-administered questionnaire completed by the parents of the children. Nitrogen dioxide was measured in the homes of all children with Palmes' diffusion tubes. In addition, information on smoking and dampness in the home was collected by questionnaire. There was no relationship between exposure to nitrogen dioxide in the home and respiratory symptoms. Respiratory symptoms were found to be associated with exposure to tobacco smoke and home dampness. There was a weak, negative association between maximal midexpiratory flow (MMEF) and exposure to nitrogen dioxide. FEV1, peak expiratory flow, and MMEF were all negatively associated with exposure to tobacco smoke. Home dampness was not associated with pulmonary function. Lung function growth, measured over a period of 2 yr, was not consistently associated with any of the indoor exposure variables. The development of respiratory symptoms over time was not associated with indoor exposure to nitrogen dioxide. There was a significant association between exposure to environmental tobacco smoke in the home and the development of wheeze. There was also a significant association between home dampness and the development of cough.

  9. Advanced Collaborative Emissions Study (ACES)

    SciTech Connect (OSTI)

    Greenbaum, Daniel; Costantini, Maria; Van Erp, Annemoon; Shaikh, Rashid; Bailey, Brent; Tennant, Chris; Khalek, Imad; Mauderly, Joe; McDonald, Jacob; Zielinska, Barbara; Bemis, Jeffrey; Storey, John; Hallberg, Lance; Clark, Nigel

    2013-12-31

    The objective of the Advanced Collaborative Emissions Study (ACES) was to determine before widespread commercial deployment whether or not the new, energy-efficient, heavy duty diesel engines (2007 and 2010 EPA Emissions Standards Compliant) may generate anticipated toxic emissions that could adversely affect the environment and human health. ACES was planned to take place in three phases. In Phase 1, extensive emissions characterization of four production-intent prototype engine and control systems designed to meet 2007 standards for nitrogen oxides (NOx) and particulate matter (PM) was conducted at an existing emissions characterization facility: Southwest Research Institute (SwRI). One of the tested engines was selected (at random, after careful comparison of results) for health testing in Phase 3. In Phase 2, extensive emission characterization of three production-intent prototype engine and control systems meeting the 2010 standards (including more advanced NOx controls to meet the more stringent 2010 NOx standards) was conducted at the same test facility. In Phase 3, one engine/aftertreatment system selected from Phase 1 was further characterized during health effects studies (at an existing inhalation toxicology laboratory: Lovelace Respiratory Research Institute, [LRRI]) to form the basis of the ACES safety assessment. The Department of Energy (DOE) award provided funding for emissions characterization in Phases 1 and 2 as well as exposure characterization in Phase 3. The main health analyses in Phase 3 were funded separately and are not reported here.

  10. SU-E-J-73: Generation of Volumetric Images with a Respiratory Motion Model Based On An External Surrogate Signal

    SciTech Connect (OSTI)

    Hurwitz, M; Williams, C; Mishra, P; Dhou, S; Lewis, J

    2014-06-01

    Purpose: Respiratory motion during radiotherapy treatment can differ significantly from motion observed during imaging for treatment planning. Our goal is to use an initial 4DCT scan and the trace of an external surrogate marker to generate 3D images of patient anatomy during treatment. Methods: Deformable image registration is performed on images from an initial 4DCT scan. The deformation vectors are used to develop a patient-specific linear relationship between the motion of each voxel and the trajectory of an external surrogate signal. Correlations in motion are taken into account with principal component analysis, reducing the number of free parameters. This model is tested with digital phantoms reproducing the breathing patterns of ten measured patient tumor trajectories, using five seconds of data to develop the model and the subsequent thirty seconds to test its predictions. The model is also tested with a breathing physical anthropomorphic phantom programmed to reproduce a patient breathing pattern. Results: The error (mean absolute, 95th percentile) over 30 seconds in the predicted tumor centroid position ranged from (0.8, 1.3) mm to (2.2, 4.3) mm for the ten patient breathing patterns. The model reproduced changes in both phase and amplitude of the breathing pattern. Agreement between prediction and truth over the entire image was confirmed by assessing the global voxel intensity RMS error. In the physical phantom, the error in the tumor centroid position was less than 1 mm for all images. Conclusion: We are able to reconstruct 3D images of patient anatomy with a model correlating internal respiratory motion with motion of an external surrogate marker, reproducing the expected tumor centroid position with an average accuracy of 1.4 mm. The images generated by this model could be used to improve dose calculations for treatment planning and delivered dose estimates. This work was partially funded by a research grant from Varian Medical Systems.

  11. UNIRIB: Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Mission Focus Photo Courtesy of Oak Ridge National Laboratory The central mission focus of the University Radioactive Ion Beam (UNIRIB) consortium is to perform nuclear physics research, and provide training and education. UNIRIB member universities have gained decades of frontline research experience through the use of the world-class facilities at Oak Ridge National Laboratory (ORNL) and other national laboratories across the United States. The UNIRIB consortium is tasked by the U.S.

  12. Environmental Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dist. Category UC-l 1, 13 DE@ 010764 Health & Environmental Research Summary of Accomplishments Prepared by Office of Energy Research /U.S. Department of Energy Washington, D.C. 20585 Reprinted April 1984 Published by Technical Information Center/U.S. Department of Energy The purpose of this brief narrative is to foster an awareness of a publicly funded health and environmental research program chartered nearly forty years ago, of its contributions toward the national goal of safe and

  13. PNNL: Research

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    Research at PNNL Research is our business With an unwavering focus on our missions, scientists and engineers at PNNL deliver science and technology. We conduct basic research that advances the frontiers of science. We translate discoveries into tools and technologies in science, energy, the environment and national security. For more than four decades, our experts have teamed with government, industry and academia to tackle some of the toughest problems facing our nation. The result: We're

  14. Research | NREL

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    Research Researching energy systems and technologies-and the science behind them-for a future powered by clean energy. Subscribe Stay connected with the latest news and research breakthroughs from NREL. Sign up now Photo of the U.S. Department of Energy's Energy Systems Integration Facility at NREL. Energy Systems Integration Facility The only facility in the nation focused on utility-scale clean energy grid integration. Learn More National Bioenergy Center National Center for Photovoltaics

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Partial Mechanistic Understanding of the North American Monsoon Download a printable PDF Submitter: Erfani, E., Desert Research Institute Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Erfani E and DL Mitchell. 2014. "A partial mechanistic understanding of the North American monsoon." Journal of Geophysical Research - Atmospheres, 119(23), 10.1002/2014JD022038. a) Dependence of

  16. Research Highlights

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Highlights Research Highlights Highlighting some of the extraordinary work in Chemistry Division Contact Us Division Leader David Morris Deputy Division Leader Mark McCleskey (505) 667-4457 Deputy Division Leader (acting) George Havrilla Division Office (505) 667-4457 Email 2016 Physicist wins early-career award for isotope work 5/12 LANL researchers shine more light on the mechanism of one of the most efficient artificial catalytic reactions developed to date 4/20 3D-printing

  17. Researchers - JCAP

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Administration Programs Research, Development, Test, and Evaluation Forty-eight final optic assemblies are symmetrically distributed around the upper and lower hemispheres of the target chamber of the National Ignition Facility at Lawrence Livermore National Laboratory The Office of Research, Development, Test, and Evaluation directs research, development, computer simulation, and inertial confinement fusion activities to maintain the safety, security and effectiveness of the nuclear weapons

  18. Research Approach

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    Research Approach Research Approach NETL's onsite research approach is based on integrating simulation tools with targeted experimental validation at real-life conditions in the lab and in the field. Simulation tools increase confidence in designs, thereby reducing the risk associated with incorporating multiple innovative technologies, realizing scale-up, and predicting the behavior and properties of real materials. The scientific underpinnings encoded into these models also ensure that

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Back to Basics: Theoretical Studies on Storm Clouds and Implications for Modeling For original submission and image(s), see ARM Research Highlights http://www.arm.gov/science/highlights/ Research Highlight Storms associated with deep convection are a key component of weather and climate. For example, they produce a large share of precipitation that falls to the Earth's surface, and their anvil shields act as a thermal blanket on the planet. To understand the behavior of these storms, researchers

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Radiative Forcing by Long-Lived Greenhouse Gases: Calculations with the AER Models Download a printable PDF Submitter: Iacono, M. J., Atmospheric & Environmental Research, Inc. Delamere, J. S., Tech-X Corporation Mlawer, E. J., Atmospheric & Environmental Research, Inc. Collins, W. D., Lawrence Berkeley National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Radiative Processes Journal Reference: Iacono, MJ, JS Delamere, EJ

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Climatology of Aerosol Optical Depth in North-Central Oklahoma: 1992-2008 Download a printable PDF Submitter: Michalsky, J. J., Cooperative Institute for Research in Environmental Sciences Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Michalsky J, F Denn, C Flynn, G Hodges, P Kiedron, A Koontz, J Schlemmer, and SE Schwartz. 2010. "Climatology of aerosol optical depth in north-central Oklahoma: 1992-2008." Journal of Geophysical Research -

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Differences Between Tropical and Trade-Wind Shallow Cumuli Download a printable PDF Submitter: Ghate, V. P., Argonne National Laboratory Area of Research: Vertical Velocity Working...

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nucleation Events Download a printable PDF Submitter: McMurry, P. ., University of Minnesota Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal ...

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Australian Wet Seasons as Revealed by ARM Disdrometer Research Facilities (Darwin, Australia)." Journal of Applied Meteorology and Climatology, , http:dx.doi.org10.1175...

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Climate Research Facility located near Lamont, Oklahoma. Measurements from ARM Raman lidar and Doppler radar instruments were used to both initialize and evaluate the model. A...

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in the Doppler spectra. Over the North Slope of Alaska, researchers used cloud radar Doppler velocity spectra, lidar backscattering coefficients and depolarization ratios, and...

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Zhang, Q., University of California, Davis Fast, J. ., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal...

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to Lose Download a printable PDF Submitter: Laskin, A., Pacific Northwest National Laboratory Fast, J. ., Pacific Northwest National Laboratory Area of Research: Aerosol...

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hagos, S. M., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Life Cycle Journal Reference: NA...

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Submitter: Westwater, E. R., University of Colorado Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference:...

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties, Radiative Processes...

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Xie, S., Lawrence Livermore National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Life Cycle Journal Reference: Xie...

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Effects of Sea Spray on the Thermodynamics of the Hurricane Boundary Layer Download a printable PDF Submitter: Khain, A., The Hebrew University of Jerusalem Area of Research:...

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of MBL Cloud Properties over the Azores Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Radiation Processes Working Group(s): Cloud...

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... data collected from 18 flights during FIRE-ACE, the researchers analyzed measurements of drop and ice crystal particle size distribution, water content, and icing rate. ...

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a printable PDF Submitter: de Boer, G., University of Colorado, BoulderCIRES Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: de...

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to improve the representation of the autoconversion process in atmospheric models. This research also reveals major deficiencies of existing empirical schemes (see the figure)....

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Simple Equation Is Good Enough Submitter: Barnard, J., University of Nevada Reno Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Properties Journal...

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Paine SN, DD Turner, ...

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "Roobik" Is Part of the Answer, Not a Puzzle Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): ...

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Turner DD. ...

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Shupe MD, DD Turner, VP ...

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mlawer, E. J., Atmospheric & Environmental Research, Inc. Turner, D. D., National Oceanic ... Journal Reference: Cady-Pereira, K, M Shephard, E Mlawer, D Turner, S Clough, and T ...

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Size Distributions with Help from Satellites Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute d'Entremont, R. P., Atmospheric and Environmental...

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cloud-Radiation Effects on Sea Ice Loss Download a printable PDF Submitter: Stephens, G. L., Colorado State University Area of Research: Cloud DistributionsCharacterizations...

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions...

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Influence of Dust Composition on Cloud Droplet Formation Download a printable PDF Submitter: Chuang, C., Lawrence Livermore National Laboratory Area of Research: Aerosol Properties...

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Burning on the Prairies Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation...

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Long-Term Impacts of Aerosols on the Vertical Development of Clouds and Precipitation Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research:...

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Complexity of Arctic Clouds Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal...

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Broadband Albedo Observations in the Southern Great Plains Submitter: Lamb, P. J., University of Oklahoma Area of Research: Aerosol Properties Working Group(s): Aerosol Journal...

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    over the MJO Download a printable PDF Submitter: Del Genio, A. D., National Aeronautics and Space Administration Area of Research: Cloud DistributionsCharacterizations...

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Get Organized Download a printable PDF Submitter: Del Genio, A. D., National Aeronautics and Space Administration Area of Research: Cloud Processes Working Group(s): Cloud...

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Into the (Cold) Pool Download a printable PDF Submitter: Del Genio, A. D., National Aeronautics and Space Administration Area of Research: General Circulation and Single Column...

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and climate change. The study, funded in large part by DOE's Atmospheric System Research program and recently discussed in the Quarterly Journal of the Royal Meteorological...

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: NA Figure 1. MFRSR data from the TWP site (970910) Figure 2. Aerosol...

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in Climate Models Submitter: Zhang, G., University of California, San Diego Area of Research: General Circulation and Single Column ModelsParameterizations Working Group(s):...

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference:...

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cloud Experiment Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Properties Journal...

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and GCM Simulations Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Rasch, P., Pacific Northwest National Laboratory Ivanova, D., Embry-Riddle...

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Download a printable PDF Submitter: Moffet, R., University of the Pacific Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: O'Brien...

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Download a printable PDF Submitter: Alexandrov, M. D., Columbia University Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Applied Optics,...

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PDF Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Life Cycle Journal...

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printable PDF Submitter: Kulkarni, G., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Kulkarni...

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    National Laboratory Long, C. N., NOAA Global Monitoring DivisionCIRES Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Riihimaki...

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    National Laboratory Ronfeld, D., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Properties Journal Reference: NA The...

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a printable PDF Submitter: Laskin, A., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Aerosol Life Cycle...

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printable PDF Submitter: Hagos, S. M., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s):...

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Raman Lidar Observations of Aerosol Humidification Near Clouds Submitter: Ferrare, R. A., NASA LaRC Area of Research: Aerosol Properties Working Group(s): Aerosol Journal ...

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Technique Successful for Measuring Thickness of Broken Clouds Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Cloud DistributionsCharacterizations ...

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SGP Observations Help Validate Soil Temperature Simulations Download a printable PDF Submitter: Huang, M., Pacific Northwest National Laboratory Area of Research: Surface...

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Life Cycle Journal Reference: Zhao Y, GG Mace, and JM Comstock. 2011. "The occurrence of particle ...

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Wilson J, D Imre, J Bernek, M Shrivastava, and A Zelenyuk. 2014. "Evaporation ...

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    K-Distribution Method for a SW Radiative Transfer Model Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models...

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    anvil cirrus: A comparison between in situ aircraft measurements and ground-based Doppler cloud radar retrievals." Geophysical Research Letters, 41, doi:10.1002...

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Using Doppler Radar to Characterize Cloud Parameters Download a printable PDF Submitter: Kogan, Y., University of Oklahoma - CIMMS Area of Research: Cloud Distributions...

  17. Research Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Past Research Projects Composite-to-Steel Joint Integrity Monitoring and Assessment ... engineering programs and the pit manufacturing program. STUDENT RESOURCES Precollege ...

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a printable PDF Submitter: Lin, Y., Geophysical Fluid Dynamics Laboratory Area of Research: General Circulation and Single Column ModelsParameterizations Working Group(s):...

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and ARM Data Submitter: Somerville, R. C., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column ModelsParameterizations Working Group(s):...

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PDF Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Aerosol Life Cycle,...

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fog and Rain in the Amazon Download a printable PDF Submitter: Gentine, P., Columbia University Sobel, A., Columbia University Area of Research: Cloud-Aerosol-Precipitation...

  2. Research Areas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in diverse research areas such as cell biology, lithography, infrared microscopy, radiology, and x-ray tomography. Time-Resolved These techniques exploit the pulsed nature of...

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Production Flux of Sea-Spray Aerosol Download a printable PDF Submitter: Schwartz, S. E., Brookhaven National Laboratory Area of Research: Aerosol Properties Working Group(s):...

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM Sites Enable Assessment of Cluster Analysis for Identifying Cloud Regimes Submitter: Jakob, C., Monash University Area of Research: Cloud DistributionsCharacterizations...

  5. Research | Photosynthetic Antenna Research Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Research Mission Statement The objective of PARC is to understand the basic scientific principles that underpin the efficient functioning of natural photosynthetic antenna systems as a basis for design of biohybrid and bioinspired architectures for next-generation systems for solar-energy conversion. Scientific Themes Through basic scientific research, PARC seeks to understand the principles of light harvesting and energy funneling as applied to The PARC Vision Graphic three

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Observing Warm Clouds in 3D Using ARM Scanning Cloud Radars and a Novel Ensemble Method Download a printable PDF Submitter: Fielding, M. D., University of Reading Area of Research:...

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM Program Research Improves Longwave Radiative Transfer Models Submitter: Turner, D. D., ... resolution infrared radiance. D.D. Turner, D.C. Tobin, S.A. Clough, P.D. Brown, ...

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in Climate Models: Results from TC4 and ISDAC Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Mishra, S., DOE - SunShot Initiative, AAAS S&T...

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: China S, G Kulkarni, BV Scarnato, N Sharma, M Pekour, JE Shilling, J Wilson, A ...

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    To Rain or Not to Rain...Aerosols May Be the Answer Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research: Cloud-Aerosol-Precipitation Interactions...

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    During MC3E Download a printable PDF Submitter: Pu, Z., University of Utah Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Pu Z and C...

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Wu D, B Xi, Z...

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Modeling Journal Reference: Naud, C, A Del Genio, GG Mace, S Benson, EE Clothiaux, and P Kollias. ...

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Properties Journal Reference: Wang X, KN Liou, SS Ou, GG Mace, and M Deng. 2009. "Remote sensing of ...

  15. Caterpillar Research

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  16. Smoking cessation among coal miners as predicted by baseline respiratory function and symptoms: a 5-year prospective study

    SciTech Connect (OSTI)

    Ames, R.G.; Hall, D.S.

    1985-03-01

    A prospective analysis was used to test whether respiratory impairment or the presence of respiratory symptoms predicts 5-year cigarette smoking cessation in a sample of 1,118 U.S. white, male, underground coal miners. Miners were examined in 1977 and re-examined in 1982 by NIOSH, and all miners with test abnormalities were so informed by letter. Respiratory impairment was measured by an index of airways obstruction combining the spirometric measures of Forced Vital Capacity (FVC) and Forced Expiratory Volume in 1 sec (FEV1). Bronchitis symptoms were measured by an index that combined chronic cough (3+ months/year) and chronic phlegm (3 + months/year). Among these coal miners, the presence of chronic respiratory symptoms initially was inversely associated with cigarette smoking cessation. Respiratory impairment, however, was positively associated with cigarette smoking cessation but did not reach statistical significance.

  17. Research Capabilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Capabilities Research Capabilities These capabilities are our science and engineering at work for the national security interest in areas from global climate to cyber security, from nonproliferation to new materials, from clean energy, to supercomputing. thumbnail of Bioscience At Los Alamos, scientists and engineers are working to unlock many of the mechanisms found in nature to improve humanity's ability to battle diseases, create new forms of environmentally friendly and abundant

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Decade and Counting Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Long CN, SA McFarlane, A Del Genio, P Minnis, TP Ackerman, J Mather, J Comstock, GG Mace, M Jensen, and C Jakob. 2013. "ARM research in the equatorial western Pacific - a decade and counting." Bulletin of the American Meteorological Society, 94(5),

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Field Campaign Resource Allocation Using Statistical Decision Analysis Download a printable PDF Submitter: Hanlon, C., Pennsylvania State University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Hanlon CJ, JB Stefik, AA Small, J Verlinde, and GS Young. 2013. "Statistical decision analysis for flight decision support: The SPartICus campaign." Journal of Geophysical Research - Atmospheres, , . ACCEPTED. In many atmospheric science field

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pointing Scanning Cloud Radar in the Right Direction Download a printable PDF Submitter: Fielding, M. D., University of Reading Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Fielding MD, JC Chiu, RJ Hogan, and G Feingold. 2013. "3D cloud reconstructions: Evaluation of scanning radar scan strategy with a view to surface shortwave radiation closure." Journal of Geophysical Research -

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Brass Ring of Climate Modeling Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Ghan SJ, SJ Smith, M Wang, K Zhang, K Pringle, K Carslaw, J Pierce, S Bauer, and P Adams. 2013. "A simple model of global aerosol indirect effects." Journal of Geophysical Research - Atmospheres, 118, 1-20. The simple model of aerosol effects on clouds

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Digging Into Climate Models' Needs with SPADE Download a printable PDF Submitter: Gustafson, W. I., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Gustafson WI, PL Ma, H Xiao, B Singh, PJ Rasch, and JD Fast. 2013. "The separate physics and dynamics experiment (SPADE) framework for determining resolution awareness: A case study of microphysics." Journal of Geophysical Research -

  3. Research Highlight

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    Invisible Giants in the Sky Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Kassianov E, M Pekour, and J Barnard. 2012. "Aerosols in central California: Unexpectedly large contribution of coarse mode to aerosol radiative forcing." Geophysical Research Letters, 39, L20806, doi:10.1029/2012GL053469. Photo

  4. Research Highlight

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    Nailing Down Ice in a Cloud Model Download a printable PDF Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Comstock JM, A Protat, SA McFarlane, J Delanoë, and M Deng. 2013. "Assessment of uncertainty in cloud radiative effects and heating rates through retrieval algorithm differences: Analysis using 3 Years of ARM data at Darwin, Australia." Journal of Geophysical Research -

  5. Research Highlight

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    The Overambitious Other Carbon Submitter: Church, J., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Song C, M Gyawali, RA Zaveri, JE Shilling, and WP Arnott. 2013. "Light absorption by secondary organic aerosol from α-pinene: Effects of oxidants, seed aerosol acidity, and relative humidity." Journal of Geophysical Research - Atmospheres, 118, doi:10.1002/jgrd.50767. Time-dependent Mass Absorption

  6. Research Highlight

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    Observational Analysis of Land-Atmosphere Coupling for Climate Model Evaluation Download a printable PDF Submitter: Phillips, T. J., Lawrence Livermore National Laboratory Klein, S., Lawrence Livermore National Laboratory Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: Phillips TJ and SA Klein. 2014. "Land-atmosphere coupling manifested in warm-season observations on the U.S. southern great plains." Journal of Geophysical Research -

  7. Research Highlight

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    MBL Aerosol Properties and Their Impact on CCN at the Azores-AMF Site Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Aerosol Properties Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Logan T, B Xi, and X Dong. 2014. "Aerosol properties and their influences on marine boundary layer cloud condensation nuclei at the ARM mobile facility over the Azores." Journal of Geophysical Research - Atmospheres, 119(8),

  8. Research Highlight

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    Accuracy of GFS and ECMWF Hurricane Sandy Track Forecasts Dependent on Cumulus Parameterization Download a printable PDF Submitter: Bassill, N. P., University of Utah Zipser, E., University of Utah Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Bassill NP. 2014. "Accuracy of early GFS and ECMWF Sandy (2012) track forecasts: Evidence for a dependence on cumulus parameterization." Geophysical Research Letters, ,

  9. Research Highlight

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    Research Masters the Misunderstood Mixed-Phase Cloud Download a printable PDF Submitter: Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Ovchinnikov M, AS Ackerman, A Avramov, A Cheng, J Fan, AM Fridland, S Ghan, J Harrington, C Hoose, A Korolev, GM McFarquhar, H Morrison, M Paukert, J Savre, BJ Shipway, MD Shupe, A Solomon, and K

  10. Research Highlight

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    Are Increases in Thunderstorm Activity in Southeast China Related to Air Pollution? Download a printable PDF Submitter: Li, Z., UALBANY Cribb, M. C., University of Maryland Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Yang X and Z Li. 2014. "Increases in thunderstorm activity and relationships with air pollution in southeast China." Journal of Geophysical Research - Atmospheres, 119(4),

  11. Research Highlight

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    Quantifying the Importance of Cold Pool Mechanisms for Convection Triggering Download a printable PDF Submitter: Kuang, Z., Harvard University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Torri G, Z Kuang, and Y Tian. 2015. "Mechanisms for convection triggering by cold pools." Geophysical Research Letters, , . ACCEPTED. Horizontal sections of (left) potential temperature and (right) water vapor specific humidity at 25 m from the model surface.

  12. Research Highlight

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    Observed Relations Between Snowfall Microphysics and Triple-Frequency Radar Observations Download a printable PDF Submitter: Kneifel, S., McGill University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Kneifel S, A von Lerber, J Tiira, D Moisseev, P Kollias, and J Leinonen. 2015. "Observed relations between snowfall microphysics and triple-frequency radar measurements." Journal of Geophysical Research - Atmospheres, 120(12),

  13. Research Highlight

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    How Well Are Shallow Convective Clouds Simulated in the CAM5 Model? Download a printable PDF Submitter: Chandra, A. S., University of Miami Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Chandra AS, C Zhang, SA Klein, and H Ma. 2015. "Low-cloud characteristics over the tropical western Pacific from ARM observations and CAM5 simulations." Journal of Geophysical Research - Atmospheres, 120, 52402, doi:10.1002/2015JD02.

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Stereo Photogrammetry Reveals Substantial Drag on Cloud Thermals Download a printable PDF Submitter: Romps, D., Lawrence Berkeley National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Romps DM and R Oktem. 2015. "Stereo photogrammetry reveals substantial drag on cloud thermals." Geophysical Research Letters, , doi:10.1002/2015GL064009. ONLINE. A 14-minute sequence of cloud growth as observed by a camera located at the MAST Academy

  15. Research Highlight

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    Retrieving Cloud and Aerosol Properties from the ARM Raman Lidar Download a printable PDF Submitter: Thorsen, T., NASA - Langley Research Center Fu, Q., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Aerosol Life Cycle, Cloud Life Cycle Journal Reference: Thorsen TJ, Q Fu, RK Newsom, DD Turner, and JM Comstock. 2015. "Automated retrieval of cloud and aerosol properties from the ARM Raman lidar, Part I: Feature detection." Journal of

  16. Research Highlight

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    The Role of Ice Nuclei Recycling in the Maintenance of Cloud Ice in Arctic Mixed-phase Stratocumulus Download a printable PDF Submitter: Solomon, A., NOAA/ESRL/Physical Sciences Division Feingold, G., NOAA - Earth System Research Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle Journal Reference: Solomon A, G Feingold, and MD Shupe. 2015. "The role of ice nuclei recycling in the maintenance of cloud ice in Arctic mixed-phase

  17. Research Highlight

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    Characterizing Arctic Mixed-Phase Cloud Structure Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Qiu S, X Dong, B Xi, and F Li. 2015. "Characterizing Arctic mixed-phase cloud structure and its relationship with humidity and temperature inversion using ARM NSA observations." Journal of Geophysical Research - Atmospheres, 120, 10.1002/2014JD023022.

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ice Particle Projected Area- and Mass-Dimension Expressions for Cirrus Clouds Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Erfani E and DL Mitchell. 2015. "Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing." Atmospheric Chemistry and Physics, 15(20),

  19. Research Highlight

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    Scale-Aware Parameterization of Liquid Cloud Inhomogeneity and Its Impact on Simulated Climate Download a printable PDF Submitter: Zhang, M., Stony Brook University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Xie X and M Zhang. 2015. "Scale-aware parameterization of liquid cloud inhomogeneity and its impact on simulated climate in CESM." Journal of Geophysical Research - Atmospheres, 120(16),

  20. Research Highlight

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    From Fire to Ice Download a printable PDF Submitter: Kulkarni, G., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Kulkarni GR, M Nandasiri, A Zelenyuk, J Beranek, N Madaan, A Devaraj, V Shutthanandan, S Thevuthasan, and T Varga. 2015. "Effects of crystallographic properties on the ice nucleation properties of volcanic ash particles." Geophysical Research Letters, 42(8), doi:10.1002/2015GL063270. Tons of

  1. Research Highlight

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    Pollution Changes Clouds' Ice Crystal Genesis Download a printable PDF Submitter: Kulkarni, G., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Kulkarni GR, K Zhang, C Zhao, M Nandasiri, V Shutthanandan, X Liu, L Berg, and J Fast. 2015. "Ice formation on nitric acid-coated dust particles: Laboratory and modeling studies." Journal of Geophysical Research - Atmospheres, 120(15), doi:10.1002/2014JD022637.

  2. Research Highlight

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    Bell-Shaped Curve Captures Cloud System Variability Submitter: Lamb, P. J., University of Oklahoma Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Journal of Geophysical Research, 110, D18205, doi:10.1029/2005JD006158. Figure 1. Reflectivity standard deviation PDFs, resampled as a function of timescale and contoured by equal values of probability, show an increase in variability with scale. The PDF modes lie mostly along the mean

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Birth and Growth of an Aerosol Download a printable PDF Submitter: Fast, J. ., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: N/A An aerosol particle journey. New modeling approaches developed by a research team led by PNNL show how aerosol particles are born and grow to affect the atmosphere and ultimately climate. Tiny atmospheric aerosols are some of the most highly

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dependence of Entrainment in Shallow Cumulus Convection on Vertical Velocity and Distance to Cloud Edge PI Contact: Kuang, Z., Harvard University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Tian Y and Z Kuang. 2016. "Dependence of entrainment in shallow cumulus convection on vertical velocity and distance to cloud edge." Geophysical Research Letters, , doi:10.1002/2016GL069005. ONLINE. Percentage change in (a) vertical velocity, (b) distance

  5. Research Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Projects Joint Los Alamos National Laboratory/UCSD Research Projects Collaborations between Los Alamos National Laboratory and the University of California at San Diego (UCSD) Jacobs School of Engineering Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff Assistant Jutta Kayser (505) 663-5649 Email Administrative Assistant Stacy Baker (505) 663-5233 Email "Since 2003, LANL has funded numerous collaborative

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Birth and Growth of an Aerosol For original submission and image(s), see ARM Research Highlights http://www.arm.gov/science/highlights/ Research Highlight Tiny atmospheric aerosols are some of the most highly studied particles connected with Planet Earth, yet questions remain on how they are formed and how they affect climate. Now Pacific Northwest National Laboratory scientists have developed new approaches to accurately model the birth and growth of these important aerosols. "Most

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quantifying Error in the Radiative Forcing of the First Aerosol Indirect Effect Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Submitted to Geophysical Research Letters, 06-27-2007. Radiative forcing of aerosol indirect as function of CCN number density and LWP in units of W/m2 per 5% IE error. A survey of recently published works shows that values used to represent the magnitude of

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Characterization of Atmospheric Aerosols Using MFRSR Measurements Download a printable PDF Submitter: Alexandrov, M. D., Columbia University Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Alexandrov, MD, AA Lacis, BE Carlson, and B Cairns. 2007. "Characterization of atmospheric aerosols using MFRSR measurements." (Journal of Geophysical Research 113, DO8204. Sample spectral optical depths of atmospheric constituents in 300 - 900 nm spectral range:

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM Science Applications of AERI Measurements Submitter: Smith, W. L., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Cloud Modeling Journal Reference: DeSlover, D. H. 1996. Analysis of Visible and Infrared Cirrus Cloud Optical Properties Using High Spectral Resolution Remote Sensing, M.S. Thesis, University of Wisconsin - Madison. Ho, S.-P. 1997. Atmospheric Profiles From Simultaneous Observations of Upwelling and Downwelling Spectral Radiance, Ph.D.

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Improving Convection Parameterization Using ARM Observations and NCAR Community Atmosphere Model Download a printable PDF Submitter: Zhang, G., University of California, San Diego Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Li, G, and GJ Zhang. 2008. "Understanding biases in shortwave cloud radiative forcing in the National Center for Atmospheric Research Community Atmosphere Model (CAM3) during El

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wide Angle Imaging Lidar: Active Optical Sensor Technology for Ground-Based Probing of Dense Clouds Download a printable PDF Submitter: Davis, A. B., Jet Propulsion Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Davis, AB. 2008. "Multiple-scattering lidar from both sides of the clouds: Addressing internal structure." Journal of Geophysical Research 113, D14S10, doi:10.1029/2007JD009666. Figure 1. Lidar

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Minimal Shortwave Anomalous Absorption Found over ACRF Sites Download a printable PDF Submitter: Dong, X., University of North Dakota Minnis, P., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Dong, X, BA Wielicki, B Xi, Y Hu, GG Mace, S Benson, F Rose, S Kato, T Charlock, and P Minnis. 2008. "Using observations of deep convective systems to constrain atmospheric column absorption of solar radiation in the

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Surprisingly Large Contribution of Small Marine Clouds to Cloud Fraction and Reflectance Download a printable PDF Submitter: Oreopoulos, L., NASA Feingold, G., NOAA - Earth System Research Laboratory Koren, I., Weizmann Institute of Science Remer, L., NASA - GSFC, Laboratory for Atmospheres Area of Research: Clouds with Low Optical [Water] Depths (CLOWD) Working Group(s): Cloud Properties Journal Reference: Koren, I, L Oreopoulos, G Feingold, LA Remer, and O Altaratz. 2008. "How small

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Atmospheric Aerosol Measurements on Cloudy Days: a New Method Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Kassianov, EI, and M Ovtchinnikov. 2008. "On reflectance ratios and aerosol optical depth retrieval in the presence of cumulus clouds." Geophysical Research Letters doi:10.1029/2008GL033231.

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Detection and Retrieval of Cirrus Clouds in the Tropics from AIRS: Validation from ARM Data Submitter: Yue, Q., Jet Propulsion Laboratory/California Institute of Technology Liou, K., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Yue Q and KN Liou. 2009. "Cirrus cloud optical and microphysical properties determined from AIRS infrared spectra." Geophysical Research Letters, 36, L05810,

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Influence of Parameterized Ice Habit on Simulated Mixed-Phase Arctic Clouds Download a printable PDF Submitter: Harrington, J. Y., Pennsylvania State University Avramov, A., Columbia University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Avramov A and JY Harrington. 2010. "Influence of parameterized ice habit on simulated mixed phase Arctic clouds." Journal of Geophysical Research - Atmospheres, 115, D03205,

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Clouds Brighten Up the Sky Near Them Download a printable PDF Submitter: Varnai, T., University of Maryland, Baltimore County/JCEST Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Varnai T and A Marshak. 2009. "MODIS observations of enhanced clear sky reflectance near clouds." Geophysical Research Letters, 36, L06807, doi:10.1029/2008GL037089. Figure 1. Illustration of clouds enhancing the

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Comparison of Ground-Based Millimeter-Wave Observations During RHUBC I Submitter: Cimini, D., CETEMPS - Dipartimento di Fisica Westwater, E. R., University of Colorado Payne, V., Jet Propulsion Laboratory/California Institute of Technology Turner, D. D., National Oceanic and Atmospheric Administration Mlawer, E. J., Atmospheric & Environmental Research, Inc. Exner, M., Radiometrics Corporation Cadeddu, M. P., Argonne National Laboratory Area of Research: Radiation Processes Working Group(s):

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Method for Retrieving Cloud Heights from Satellite Data Download a printable PDF Submitter: Chang, F., Science Systems and Applications, Inc. Minnis, P., NASA - Langley Research Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Chang F, P Minnis, B Lin, MM Khaiyer, R Palikonda, and DA Spangenberg. 2010. "A modified method for inferring cloud top height using GOES-12 imager 10.7- and 13.3-µm data." Journal of

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Surface Summertime Radiative Forcing by Shallow Cumuli at the ARM SGP Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Berg LK, EI Kassianov, CN Long, and DL Mills. 2011. "Surface summertime radiative forcing by shallow cumuli at the ARM SGP." Journal of Geophysical Research - Atmospheres, 116, D01202, 10.1029/2010JD014593. Histogram of hourly average shortwave

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Adoption of RRTMG in the NCAR CAM5 and CESM1 Global Climate Models Download a printable PDF Submitter: Iacono, M. J., Atmospheric & Environmental Research, Inc. Collins, W. D., Lawrence Berkeley National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: N/A Figure 1. Shortwave cloud forcing for three versions of the NCAR Community Atmosphere Model (CAM) with CERES

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Observations of the First Aerosol Indirect Effect in Shallow Cumuli Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Berg LK, CM Berkowitz, JC Barnard, G Senum, and SR Springston. 2011. "Observations of the first aerosol indirect effect in shallow cumuli." Geophysical Research Letters, 38, L03809, 10.1029/2010GL046047. Mean value of (a)

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cumuli Impact on Solar Radiation at Surface: Spectral Changes Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle, Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Kassianov E, J Barnard, LK Berg, CN Long, and C Flynn. 2011. "Shortwave spectral radiative forcing of cumulus clouds from surface observations." Geophysical Research Letters, 38, L07801,

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Possible Impact of Homogeneous Freezing Nucleation on in Situ Measurements Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Mishra, S., DOE - SunShot Initiative, AAAS S&T Policy Fellow Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Mitchell DL, S Mishra, and RP Lawson. 2011. Cirrus Clouds and Climate Engineering: New Findings on Ice Nucleation and Theoretical

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Putting the Pieces Together Download a printable PDF Submitter: Fan, J., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Fan J, S Ghan, M Ovchinnikov, X Liu, P Rasch, and A Korolev. 2011. "Representation of arctic mixed-phase clouds and the Wegener-Bergeron-Findeisen process in climate models: Perspectives from a cloud-resolving study." Journal of Geophysical Research - Atmospheres, 116,

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM Science Applications of AERI Measurements: 1997 Progress Submitter: Smith, W. L., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Cloud Modeling Journal Reference: N/A Figure 1. Figs. 1a and 1b contain rms differences from 72 radiosondes for AERI retrievals (blue), GOES retrievals (black), and AERI+GOES retrievals (red) for temperature and mixing ratio respectively during the 1997 Water Vapor IOP. A measure of meteorological the variability of the

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Development and Recent Evaluation of the MT_CKD Model of Continuum Absorption Download a printable PDF Submitter: Mlawer, E. J., Atmospheric & Environmental Research, Inc. Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Mlawer EJ, VH Payne, J Moncet, JS Delamere, MJ Alvarado, and DD Tobin. 2012. "Development and recent evaluation of the MT_CKD model of continuum absorption." Philosophical Transactions of The Royal Society A, 370, doi:

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution + Storm Clouds = Warmer Atmosphere Download a printable PDF Submitter: Fan, J., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Fan J, D Rosenfeld, Y Ding, L Leung, and Z Li. 2012. "Potential aerosol indirect effects on atmospheric circulation and radiative forcing through deep convection." Geophysical Research Letters, 39, L09806,

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    How to Catch Aerosols in the Act Download a printable PDF Submitter: Wang, M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Wang M, S Ghan, X Liu, TS L'Ecuyer, K Zhang, H Morrison, M Ovchinnikov, R Easter, R Marchand, D Chand, Y Qian, and JE Penner. 2012. "Constraining cloud lifetime effects of aerosols using A-Train satellite observations." Geophysical Research Letters, 39, L15709, doi:

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "Invisible" Giants in the Sky Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Kassianov E, M Pekour, and J Barnard. 2012. "Aerosols in central California: Unexpectedly large contribution of coarse mode to aerosol radiative forcing." Geophysical Research Letters, 39, L20806, doi:10.1029/2012GL053469. Daily averaged values of (a, b) the direct

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quantifying the Magnitude of Anomalous Solar Absorption Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Figure 1 Spurred by a series of articles published in 1995 claiming solar absorption in cloudy atmospheres far exceeded model predictions, Atmospheric Radiation Measurement (ARM) Program researchers at the Southern Great Plains (SGP) site in Oklahoma

  12. Pulmonary function and respiratory symptoms of school children exposed to ambient air pollution

    SciTech Connect (OSTI)

    Kim, Yoon Shin; Ko, Ung Ring

    1996-12-31

    This study was undertaken to evaluate the health effect of air pollution on pulmonary function and respiratory symptoms of Korean school children between 7 and 10 years of age during November 1995-January 1996. A standard respiratory symptom questionnaire was administered and spirometry was performed to examine pulmonary function of 121 children in an urban polluted area, Seoul, and of 119 children in non-polluted area, Sokcho, respectively. There was significant difference in the level of pulmonary function [forced expiratory volume in second (FEV{sub 1.0}) and forced vital capacity (FVC)] between exposed groups to polluted area and non-polluted area. Parental smoking was significantly related to respiratory symptoms of cough, phlegm, and the level of pulmonary function. The observed changes in FEV{sub 1.0} and FVC seemed to relate to home cooking fuel, not to respiratory symptoms. The additional longitudinal work that carefully monitors ambient and indoor air pollution and health effects data should be conducted to confirm these results.

  13. Personal exposure to nitrogen dioxide and its association with respiratory illness in Hong Kong

    SciTech Connect (OSTI)

    Koo, L.C.; Ho, J.H.; Ho, C.Y.; Matsuki, H.; Shimizu, H.; Mori, T.; Tominaga, S. )

    1990-05-01

    In 1985, 362 primary schoolchildren and their 319 mothers were surveyed in Hong Kong to study the possible relationship of air pollution to respiratory illnesses. Using nitrogen dioxide (NO{sub 2}) measured by personal samplers as a measure of air pollution, the study aimed to identify the major sources of NO{sub 2} in the indoor environment and see whether its increased presence was associated with respiratory symptoms. The levels of NO{sub 2} among the mothers was found to increase by 21% if dust exposure was reported from the workplace, 18% if they used such cooking fuels as liquid petroleum gas or kerosene, 11% when kitchens did not have ventilating fans, and 10% when incense was burned at home. In terms of respiratory symptoms, an increase in NO{sub 2} levels of 19% was reported among those with allergic rhinitis and 18% among those with chronic cough. The levels of NO2 among children were correlated with levels measured in classrooms, all of which had opened windows so that the NO{sub 2} came from outdoors. No association was found between children's NO{sub 2} levels and respiratory symptoms. With the exception of smoking by the father and the children's NO{sub 2} levels, no association was found between smoking at home and NO{sub 2} levels.

  14. Research Highlight

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    China's Aerosol Malady Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Qiu Y, Q Wang, and F Hu. 2012. "Shouxian aerosol radiative properties measured by DOE AMF and compared with CERES-MODIS." Advanced Materials Research, 518-523(2), doi:10.4028/www.scientific.net/AMR.518-523.1973. Tiananmen tower enveloped by heavy fog and haze in January 2013. Many of

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    Madden-Julian Oscillation Heating: to Tilt or Not to Tilt Download a printable PDF Submitter: Schumacher, C., Texas A&M University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Lappen C and C Schumacher. 2014. "The role of tilted heating in the evolution of the MJO." Journal of Geophysical Research - Atmospheres, , 10.1002/2013JD020638. ACCEPTED. In this figure, November through April wavenumber frequency spectrum of OLR (colors) and 850

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    Validation of CERES-MODIS Cloud Retrievals Using the Azores Data Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Xi B, P Minnis, and S Sun-Mack. 2014. "Comparison of marine boundary layer cloud properties from CERES-MODIS edition 4 and DOE ARM AMF measurements at the Azores." Journal of Geophysical Research - Atmospheres, 119, doi:10.1002/2014JD021813. Figure 1. The ARM

  17. Research Highlight

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    Climate Warming Due to Soot and Smoke? Maybe Not. Submitter: Penner, J. E., University of Michigan Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Penner, J.E., S.Y. Zhang, and C.C. Chuang, Soot and smoke aerosol may not warm climate, J. Geophys. Res., 108(D21), 4657, doi:10.1029/2003JD003409, 2003. New research results from the Department of Energy's Atmospheric Radiation Measurement (ARM) Program suggest that fossil fuel soot emissions and biomass smoke may

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    ARM Program Achieves Milestone in Global Cloud Properties Research Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Knuteson, R.O., Best, F.A., Dedecker, R.G., Feltz, W.F., Revercomb, H.E., and Tobin, D.C., 2004: "10 Years of AERI Data from the DOE ARM Southern Great Plains Site," In Proceedings from the Fourteenth ARM Science Team Meeting, U.S. Department of Energy,Washington,

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    Bimodal CCN Spectra Download a printable PDF Submitter: Hudson, J. G., Desert Research Institute Area of Research: Cloud Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: N/A Figure 1. Differential CCN concentrations (per cm3) against critical supersaturation (Sc) for MASE below cloud CCN spectra for each of the 8 modal categories. (a) cat 1, (b) cat 2, (c) cat 3, (d) cat 4, (e) cat 5, (f) cat 6, (g) cat 7, (h) cat 8. Sc in percent for, Hoppel minima are

  20. RESEARCH QUARTERLY

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    RESEARCH QUARTERLY First Quarter 2015 Th 90 Ac 89 Pa 91 U 92 Np 93 Pu 94 Am 95 Cm 96 Bk 97 Cf 98 Es 99 Fm 100 Md 101 No 102 Lr 103 Glenn T. Seaborg Institute for Transactinium Science/Los Alamos National Laboratory Actinide Research Quarterly About the cover The crystalline structure of plutonium in its elemental form, and in molecules and compounds with other elements, is the basis for understanding the intriguing chemistry, physics, and engineering of plutonium molecules and compounds. Colored

  1. Research Highlight

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    ARM M-PACE Data Used to Evaluate and Improve Arctic Mixed-Phase Clouds Simulated in Climate Models Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, J Boyle, SA Klein, X Liu, and S Ghan. 2008. "Simulations of Arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE." Journal of Geophysical Research 113,

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    The Apparent Bluing of Aerosols Near Clouds Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marshak, A, G Wen, JA Coakley, LA Remer, NG Loeb, and RF Cahalan. 2008. "A simple model of the cloud adjacency effect and the apparent bluing of aerosols near clouds." Journal of Geophysical Research 113, D14S17, doi: 10.1029/2007JD009196. (upper panel) A schematic

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    Remote Sensing of Mineral Dust Using AERI Download a printable PDF Submitter: Hansell, R. A., University of California, Los Angeles Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Hansell R, KN Liou, SC Ou, SC Tsay, Q Ji, and JS Reid. 2008. "Remote sensing of mineral dust aerosol using AERI during the UAE2: A modeling and sensitivity study." Journal of Geophysical Research - Atmospheres, 113, D18202, doi:10.1029/2008JD010246. BT sensitivity to dust

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    Long-Term Observations of Convective Boundary Layer Using Insect Returns at SGP Download a printable PDF Submitter: Chandra, A. S., McGill University Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Chandra AS, P Kollias, SE Giangrande, and SA Klein. 2010. "Long-term observations of the convective boundary layer using insect radar returns at the SGP ARM Climate Research Facility." Journal of Climate, 23, 5699-5714. Example of time-height mapping

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    Improving the Treatment of Radiation in Climate Models Download a printable PDF Submitter: Delamere, J. S., Tech-X Corporation Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle, Cloud Life Cycle Journal Reference: Delamere JS, SA Clough, VH Payne, EJ Mlawer, DD Turner, and RR Gamache. 2010. "A far-infrared radiative closure study in the Arctic: Application to water vapor." Journal of Geophysical Research - Atmospheres, 115, D17106, 10.1029/2009JD012968. The

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    Predicting Arctic Sea Ice Loss Download a printable PDF Submitter: Liu, X., University of Wyoming Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Liu X, S Xie, J Boyle, SA Klein, X Shi, Z Wang, W Lin, SJ Ghan, M Earle, PS Liu, and A Zelenyuk. 2011. "Testing cloud microphysics parameterizations in NCAR CAM5 with ISDAC and M-PACE observations." Journal of Geophysical Research, 116, D00T11,

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    New Method for Three-Dimensional Imaging of Cirrus Clouds Submitter: Liou, K., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Liou, K.N, S.C. Ou, Y. Takano, J. Roskovensky, G.G. Mace, K. Sassen, and M. Poellot, 2002: "Remote sensing of three-dimensional inhomogeneous cirrus clouds using satellite and mm-wave cloud radar data," Geophysical Research Letters 29(9): 1360. Figure 1 ARM Data

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    Partly Cloudy with a Chance of Aerosol Download a printable PDF Submitter: Chand, D., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Chand D, R Wood, SJ Ghan, M Wang, M Ovchinnikov, PJ Rasch, S Miller, B Schichtel, and T Moore. 2012. "Aerosol optical depth increase in partly cloudy conditions." Journal of Geophysical Research, 117, D17207, doi:10.1029/2012JD017894. The sky can appear nearly clear or

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    The Short and the Long of Storms: Tracing a Deep Convective System's Life in the Midlatitude Download a printable PDF Submitter: Feng, Z., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, X Dong, B Xi, S McFarlane, A Kennedy, B Lin, and P Minnis. 2012. "Life cycle of midlatitude deep convective systems in a Lagrangian framework." Journal of Geophysical Research - Atmospheres, 117(D23), D23201,

  10. Errvironmentaf Research

    Office of Legacy Management (LM)

    online at www.sciencedirect.com Environmental Research 10 1 (2006) 3 4 4 1 Errvironmentaf Research Do scientists and fishermen collect the same size fish? Possible implications for exposure assessment Joanna urger^^^^', Michael ~ o c h f e l d ~ ~ ~ , Sean Christian W. ~ e i t n e r ~ . ~ , Stephen ~ e w e t t ~ , Daniel SnigarofP, Ronald snigarofff, Tim Starnrng, Shawn ~ a r ~ e f , Max ~ o b e r ~ * , Heloise chenelotd, Robert patrickh, Conrad D. volzi, James ~ e s t o d 'Division of Life

  11. Postdoctoral Research Awards Annual Research Meeting: Brandon...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Brandon Mercado Postdoctoral Research Awards Annual Research Meeting: Brandon Mercado Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from ...

  12. Postdoctoral Research Awards Annual Research Meeting: Padmaja...

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    Padmaja Gunda Postdoctoral Research Awards Annual Research Meeting: Padmaja Gunda Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from the ...

  13. Postdoctoral Research Awards Annual Research Meeting: Joseph...

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    Joseph Mondloch Postdoctoral Research Awards Annual Research Meeting: Joseph Mondloch Postdoctoral Research Awards Annual Research Meeting: Joseph Mondloch poster presentation. PDF ...

  14. ASU EFRC - Center researchers

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    Center researchers Chad Simmons Academic Professional Gerdenis Kodis Research Assistant Professor Raimund Fromme Faculty Research Associate Yuichi Terazono Faculty Research...

  15. ARM - Funded Research Proposals

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    Research Proposals Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) Earth System Modeling Regional &...

  16. Research Highlight

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    Diagnosing Raindrop Evaporation, Breakup, and Coalescence in Vertical Radar Observations PI Contact: Williams, C. R., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Williams CR. 2016. "Reflectivity and Liquid Water Content Vertical Decomposition Diagrams to Diagnose Vertical Evolution of Raindrop Size Distributions." Journal of Atmospheric and Oceanic Technology, 33(3), doi: 10.1175/jtech-d-15-0208.1. Example of

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    Microphysical Piggybacking: Understanding the Coupling Between Cloud Dynamics and Microphysics PI Contact: Grabowski, W., NCAR Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Grabowski WW. 2014. "Extracting microphysical impacts in large-eddy simulations of shallow convection." Journal of the Atmospheric Sciences, 71(12), 10.1175/JAS-D-14-0231.1. Grabowski WW. 2015. "Untangling microphysical

  18. Research Highlight

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    Regime Dependence of Cloud Water Variability Observed at the ARM Sites PI Contact: Ahlgrimm, M., European Centre for Medium-Range Weather Forecasts Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Ahlgrimm M and RM Forbes. 2016. "Regime dependence of cloud condensate variability observed at the Atmospheric Radiation Measurement sites." Quarterly Journal Royal Meteorological Society, ,

  19. Research Opportunities

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    Opportunities /collaboration/_assets/images/icon-collaboration.jpg Research Opportunities Partnering with respected universities, LANL Centers provide exceptional educational opportunities and support staff recruitment, revitalization, and retention. Center for Nonlinear Studies» Quantum Institute» Energy Security Center» Seaborg Institute» Center for Space and Earth Science» TOP STORIES - highlights of our science, people, technologies close Science on the Hill: Why space weather matters

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    Modeling Aerosols in Fair-Weather Clouds During CHAPS Download a printable PDF Submitter: Shrivastava, M., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Shrivastava M, LK Berg, J Fast, R Easter, A Laskin, WI Gustafson, Y Liu, and CM Berkowitz. 2013. "Modeling aerosols and their interactions with shallow cumuli during the 2007 CHAPS field study." Journal of

  1. Research Highlight

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    Fair-Weather Clouds Hold Dirty Secret Download a printable PDF Submitter: Shrivastava, M., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Shrivastava MB, JD Fast, RC Easter, WI Gustafson, RA Zaveri, JL Jimenez, P Saide, and A Hodzic. 2011. "Modeling organic aerosols in a megacity: Comparison of simple and complex representations of the volatility basis set

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    Statistics of Vertical Velocities from Monsoonal Convection with Verification Download a printable PDF Submitter: Collis, S. M., Argonne National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Collis S, A Protat, PT May, and C Williams. 2013. "Statistics of storm updraft velocities from TWP-ICE including verification with profiling measurements." Journal of Applied Meteorology and Climatology, 52(8), 10.1175/jamc-d-12-0230.1. A

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    What Controls the Vertical Extent of Continental Shallow Cumulus? Download a printable PDF Submitter: Zhang, Y., Lawrence Livermore National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Zhang Y and SA Klein. 2013. "Factors controlling the vertical extent of fair-weather shallow cumulus clouds over land: investigation of diurnal-cycle observations collected at the ARM Southern Great Plains site." Journal of the Atmospheric Sciences,

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    Importance of Environmental Instability to the Sensitivity of the Rimed Ice Species in Convection Download a printable PDF Submitter: Van Weverberg, K., Brookhaven National Laboratory Vogelmann, A. M., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Van Weverberg K. 2013. "Impact of environmental instability on convective precipitation uncertainty associated with the nature of the rimed ice species in a bulk microphysics

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    Different Strokes for Different Folks-Not Any More, Say Scientists at the UK Met Office Submitter: Morcrette, C., Met Office Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Morcrette CJ, EJ O'Connor, and JC Petch. 2012. "Evaluation of two cloud parametrization schemes using ARM and Cloud-Net observations." Quarterly Journal Royal Meteorological Society, 138(665), doi:10.1002/qj.969. Errors

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    A Finer Mesh to Improve Cloud Representation in Climate Models? Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Boutle IA, SJ Abel, PG Hill, and CJ Morcrette. 2013. "Spatial variability of liquid cloud and rain: observations and microphysical effects." Quarterly Journal Royal Meteorological Society, , doi:10.1002/qj.2140. Different sizes of water droplets as well as varying water

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    Cloud Survey over West Africa Reveals Climate Impact of Mid-Level Clouds Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Bouniol D, F Couvreux, PH Kamsu-Tamo, M Leplay, F Guichard, F Favot, and EJ O'Connor. 2012. "Diurnal and seasonal cycles of cloud occurrences, types, and radiative impact over West Africa." Journal of Applied Meteorology and Climatology, 51(3),

  8. Research Highlight

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    Tropical Ice Cloud Simulations Using Scripps Single Column Model (SCM) Reveal Range of Model Uncertainties Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: McFarquhar, G.M., S. Iacobellis, R.C.J. Somerville. SCM Simualtions of Tropical Ice Clouds Using Observationally Based Parameterizations of Microphysics, Journal of Climate: Vol 15, No. 11, pp.

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    The Role of Microphysics Parameterization in Simulating Tropical Mesoscale Convective Systems Download a printable PDF Submitter: Van Weverberg, K., Brookhaven National Laboratory Vogelmann, A. M., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Van Weverberg K, AM Vogelmann, W Lin, EP Luke, AT Cialella, P Minnis, MM Khaiyer, ER Boer, and MP Jensen. 2013. "The role of cloud microphysics parameterization in the simulation

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    An Application of Linear Programming Techniques to ARM Polarimetric Radar Processing Download a printable PDF Submitter: Giangrande, S., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Giangrande SE, R McGraw, and L Lei. 2013. "An application of linear programming to polarimetric radar differential phase processing." Journal of Atmospheric and Oceanic Technology, , . ACCEPTED. C-band scanning ARM precipitation radar

  11. Research Highlight

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    New Insights Into Deep Convective Core Vertical Velocities Using ARM UHF Wind Profilers Download a printable PDF Submitter: Giangrande, S., Brookhaven National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Giangrande SE, S Collis, J Straka, A Protat, C Williams, and S Krueger. 2013. "A summary of convective core vertical velocity properties using ARM UHF wind profilers in Oklahoma." Journal of Applied Meteorology and Climatology, ,

  12. Research Highlight

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    Linking Ice Nucleation to Aerosols and Its Impact on CAM5 Simulated Arctic Clouds and Radiation Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Xie S, X Liu, C Zhao, and Y Zhang. 2013. "Sensitivity of CAM5 simulated arctic clouds and radiation to ice nucleation parameterization." Journal of Climate, 26(16),

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    Wildfires Lead to More Warming Than Climate Models Predict, a New Mexico Fire Study Reports Download a printable PDF Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: China S, C Mazzoleni, K Gorkowski, AC Aiken, and MK Dubey. 2013. "Morphology and mixing state of individual freshly emitted wildfire carbonaceous particles." Nature Communications, 4, 2122, doi:10.1038/ncomms3122.

  14. Research Highlight

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    The Impact of Instrument Selection and Sampling on Cloud Fraction at the ARM Southern Great Plains Site Download a printable PDF Submitter: Kennedy, A. D., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Kennedy AD, X Dong, and B Xi. 2013. "Cloud Fraction at the ARM SGP Site: Instrument and sampling considerations from 14 years of ARSCL." Theoretical and Applied Climatology (Springer), 115(1-2),

  15. Research Highlight

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    Modified Climate Model Better Replicates Global Rainfall Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Song X, GJ Zhang, and JF Li. 2012. "Evaluation of microphysics parameterization for convective clouds in the NCAR Community Atmosphere Model CAM5." Journal of Climate, 25(24), doi:10.1175/JCLI-D-11-00563.1. Rainfall in the

  16. Research Highlight

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    A Tall Order: Climate Models Fall Short in Predicting African Sahel Rainfall Download a printable PDF Submitter: Roehrig, R., Meteo-France CNRM/GMME/MOANA Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Roehrig R, D Bouniol, F Guichard, F Hourdin, and JL Redelsperger. 2013. "The present and future of the West African Monsoon: A process-oriented assessment of CMIP5 simulations along

  17. Research Highlight

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    First Comes the Thunder: Precursors to Local Rainfall in the West African Monsoon Download a printable PDF Submitter: Roeder, L. R., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Dione C, M Lothon, D Badiane, B Campistron, F Couvreau, F Guichard, and S Sall. 2013. "Phenomenology of Sahelian convection observed in Niamey during the early monsoon." Quarterly Journal Royal Meteorological Society, , . ACCEPTED.

  18. Research Highlight

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    Addressing the "Light Precipitation Problem" in the ECMWF Global Model Download a printable PDF Submitter: Ahlgrimm, M., European Centre for Medium-Range Weather Forecasts Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Ahlgrimm M and R Forbes. 2013. "Improving the representation of low clouds and drizzle in the ECMWF model based on ARM observations from the Azores." Monthly Weather Review,

  19. Research Highlight

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    Determining the Future of CO2 Using an Earth System Model Download a printable PDF Submitter: Keppel-Aleks, G., University of Michigan Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol Life Cycle Journal Reference: Keppel-Aleks G, JT Randerson, K Lindsay, BB Stephens, JK Moore, SC Doney, PE Thornton, NM Mahowald, FM Hoffman, C Sweeney, PP Tans, PO Wennberg, and SC Wofsy. 2013. "Atmospheric carbon dioxide variability in the Community

  20. Research Highlight

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    Ground Stations Likely Get a Boost from Satellites to Estimate Carbon Dioxide Emissions Download a printable PDF Submitter: Roeder, L. R., Pacific Northwest National Laboratory Area of Research: Surface Properties Working Group(s): Aerosol Life Cycle Journal Reference: Basu S, S Guerlet, A Butz, S Houweling, OP Hasekamp, I Aben, PB Krummel, LP Steele, RL Langenfelds, MS Torn, SC Biraud, B Stephens, A Andrews, and D Worthy. 2013. "Global CO2 fluxes estimated from GOSAT retrievals of total

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    All Mixed Up-Probing Large and Small Scale Turbulence Structures in Continental Stratocumulus Clouds Download a printable PDF Submitter: Fang, M., University of Miami Albrecht, B. A., University of Miami Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Fang M, BA Albrecht, VP Ghate, and P Kollias. 2013. "Turbulence in continental stratocumulus, Part I: External forcings and turbulence structures." Boundary-Layer Meteorology, 149(454),

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    Does Glyoxal Contribute Significantly to Regional SOA Formation? Download a printable PDF Submitter: Knote, C., Atmospheric Chemistry Division Hodzic, A., NCAR Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Knote C, A Hodzic, J Jimenez, R Volkamer, JJ Orlando, S Baidar, J Brioude, J Fast, DR Gentner, AH Goldstein, PL Hayes, BW Knighton, H Oetjen, A Setyan, H Stark, R Thalman, G Tyndall, R Washenfelder, E Waxman, and Q Zhang. 2014. "Simulation of

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    Marine Stratocumulus Clouds: Turbulence-Raidation-Thermodynamics Coupling Download a printable PDF Submitter: Ghate, V. P., Argonne National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Ghate VP, BA Albrecht, MA Miller, A Brewer, and CW Fairall. 2014. "Turbulence and radiation in stratocumulus-topped marine boundary layers: A case study from VOCALS-REx." Journal of Applied Meteorology and Climatology, 53, 117-135. Figure 1.

  4. Research Highlight

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    Initial Aerosol Concentration Is Key Contributor to Low-Level Cloud Reflectivity Submitter: Penner, J. E., University of Michigan Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Penner, J., Dong, X., Chen. Y., Observational evidence of a change in radiative forcing due to the indirect aerosol effect, Nature, Vol. 427, 15 January 2004. Cloud optical depth, as determined from the parcel model, is indicated by the dots. Red lines show best fit data of cloud liquid

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    Most Systematic Errors in Climate Models Appear in Only a Few Days of Model Integration Download a printable PDF Submitter: Ma, H., Lawrence Livermore National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Ma H, S Xie, SA Klein, KD Williams, JS Boyle, S Bony, H Douville, S Fermepin, B Medeiros, S Tyteca, M Watanabe, and DL Williamson. 2014. "On the correspondence between mean forecast errors and climate errors in

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    Reality Check: Estimates for Human-Caused Methane Emissions in the U.S. Appear Off by 50% Download a printable PDF Submitter: Biraud, S. C., Lawrence Berkeley National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Miller SM, SC Wofsy, AM Michalak, EA Kort, AE Andrews, SC Biraud, EJ Dlugokencky, J Elszkeiwicz, ML Fischer, G Janssens-Maenhout, BR Miller, JB Miller, SA Montzka, T Nehrkorn, and C Sweeney. 2013. "Anthropogenic emissions

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    Arctic Winter Frost Flowers Have Negligible Influence on Cloud Longwave Warming Download a printable PDF Submitter: Xu, L., University of California, San Diego Russell, L. M., Scripps Institution of Oceanography Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Xu L, LM Russell, RC Somerville, and PK Quinn. 2013. "Frost flower aerosol effects on Arctic wintertime longwave cloud radiative forcing."

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    Multi-scale Variations of Decade-long Cloud Fractions from Six Different Platforms over the SGP Download a printable PDF Submitter: Wu, W., Brookhaven National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Wu W, Y Liu, MP Jensen, T Toto, MJ Foster, and CN Long. 2014. "A comparison of multiscale variations of decade-long cloud fractions from six different platforms over the Southern Great Plains in the United

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    The Organic Molecules Explaining New Particle Growth in the Boreal Forest Download a printable PDF Submitter: Thornton, J., University of Washington Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Ehn M, JA Thornton, E Kleist, M Sipila, H Junninen, I Pullinen, M Springer, F Rubach, R Tillmann, B Lee, F Lopez-Hilfiker, S Andres, I Acir, M Rissanen, T Jokinen, S Schobesberger, J Kangasluoma, J Kontkanen, T Nieminen, T Kurten, LB Nielsen, S Jorgensen, HG

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    Which Absorption Model Should Be Used for Supercooled Liquid Water in the Microwave? Download a printable PDF Submitter: Kneifel, S., McGill University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Kneifel S, S Redl, E Orlandi, U Löhnert, MP Cadeddu, DD Turner, and M Chen. 2014. "Absorption properties of supercooled liquid water between 31 and 225 GHz: evaluation of absorption models using ground-based observations." Journal of Applied

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    The Emergence of Open Source Software for the Weather Radar Community Download a printable PDF Submitter: Collis, S. M., Argonne National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Heistermann M, S Collis, MJ Dixon, SE Giangrande, JJ Helmus, B Kelley, J Koistinen, DB Michelson, P Markus, T Pfaff, and DB Wolff. 2014. "The Emergence of Open Source Software for the Weather Radar Community."

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    Merging Cloud and Precipitation Radar Data Provides a Better View of Tropical Rain Clouds Download a printable PDF Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, SA McFarlane, C Schumacher, S Ellis, J Comstock, and N Bharadwaj. 2014. "Constructing a merged cloud-precipitation radar dataset for tropical convective clouds during the DYNAMO/AMIE experiment at Addu Atoll."

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    Scientists Uncover Combustion Mechanism to Better Predict Warming by Wildfires Download a printable PDF Submitter: Dubey, M. K., Los Alamos National Laboratory Donahue, N., Carnegie Mellon University Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Saleh R, E Robinson, D Tkacik, A Ahern, S Liu, A Aiken, R Sullivan, A Presto, M Dubey, R Yokelson, N Donahue, and A Robinson. 2014. "Brownness of organics in aerosols from biomass burning linked to

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    Phase State and Physical Properties of Ambient and Lab Generated Aerosols: X-ray Microscopy Download a printable PDF Submitter: OBrien, R. E., Lawrence Berkeley National Laboratory Gilles, M., Lawrence Berkeley National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: O'Brien RE, A Neu, SA Epstein, AC MacMillan, B Wang, ST Kelly, SA Nizkorodov, A Laskin, RC Moffet, and MK Gilles. 2014. "Physical properties of ambient and

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    Ice Concentration Retrieval in Stratiform Mixed-Phase Clouds Using Cloud Radar Measurements Download a printable PDF Submitter: Zhang, D., University of Wyoming Wang, Z., University of Wyoming Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Zhang D, Z Wang, A Heymsfield, J Fan, and T Luo. 2014. "Ice concentration retrieval in stratiform mixed-phase clouds using cloud radar reflectivity measurements and 1-D ice-growth model simulations." Journal

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    The Anatomy and Physics of ZDR Columns Submitter: Kumjian, M., Pennsylvania State University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Kumjian MR, AP Khain, N Benmoshe, E Ilotoviz, AV Ryzhkov, and VT Phillips. 2014. "The anatomy and physics of ZDR columns: Investigating a polarimetric radar signature with a spectral bin microphysical model." Journal of Applied Meteorology and Climatology, 53(7),

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    A New Theory of Time-dependent Freezing and Its Application to Investigation of Formation of Hail Download a printable PDF Submitter: Khain, A., The Hebrew University of Jerusalem Phillips, V., University of Leeds Area of Research: Cloud Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Phillips VT, A Khain, N Benmoshe, E Ilotoviz, and A Ryzhkov. 2014. "Theory of time-dependent freezing. II: Scheme for freezing raindrops and simulations by a cloud model

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    First Observations of Tracking Clouds Using Scanning ARM Cloud Radars Download a printable PDF Submitter: Borque, P., McGill University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Borque P, P Kollias, and S Giangrande. 2014. "First observations of tracking clouds using scanning ARM cloud radars." Journal of Applied Meteorology and Climatology, , . ONLINE. A 2.5-hour long observing sequence from 25 May 2011 of (a) the Total Sky Imager (TSI)

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    Clouds, Aerosol, and Precipitation in the Marine Boundary Layer: an ARM Mobile Facility Deployment Download a printable PDF Submitter: Wood, R., University of Washington Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: N/A Composite seasonal cycles of (a) cloud droplet concentration retrieved using a variety of methods; (b) surface measured cloud condensation nuclei concentrations at four supersaturations.

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    Growing More Effective Ways to Measure Climate Change Download a printable PDF Submitter: Maseyk, K. S., Universite Pierre et Marie Curie, Paris 6 Area of Research: Surface Properties Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Maseyk K, JA Berry, D Billesbach, JE Campbell, MS Torn, M Zahniser, and U Seibt. 2014. "Sources and sinks of carbonyl sulfide in an agricultural field in the Southern Great Plains." Proceedings of the National Academy of

  1. Research Highlight

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    Hail Generation and Melting in Deep Convective Clouds from the Perspective of Dual-polarization Download a printable PDF Submitter: Ryzhkov, A., National Severe Storms Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Ryzhkov AV, MR Kumjian, SM Ganson, and AP Khain. 2014. "Polarimetric radar characteristics of melting hail. Part I: Theoretical simulations using spectral microphysical modeling." Journal of Applied Meteorology and

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    Validation of Climate Model Ice Cloud Properties Download a printable PDF Submitter: Eidhammer, T., NCAR Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Eidhammer T, H Morrison, A Bansemer, A Gettelman, and AJ Heymsfield. 2014. "Comparison of ice cloud properties simulated by the Community Atmosphere Model (CAM5) with in situ observations." Atmospheric Chemistry and Physics, 14(18), doi:10.5194/acp-14-10103-2014. Mass weighted terminal fall

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    Modeling Dust as Component Minerals in the Community Atmosphere Model Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Scanza R, N Mahowald, S Ghan, CS Zender, JF Kok, Y Zhang, and S Albani. 2015. "Modeling dust as component minerals in the Community Atmosphere Model: development of framework and impact on radiative forcing."

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    Overly Intense Convective Updrafts Exposed as a Significant Contributor to Model Biases Submitter: Varble, A., University of Utah Zipser, E., University of Utah Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Varble A, EJ Zipser, AM Fridlind, P Zhu, AS Ackerman, J Chaboureau, S Collis, J Fan, A Hill, and B Shipway. 2014. "Evaluation of cloud-resolving and limited area model simulations using TWP-ICE observations. Part 1: Deep convective updraft

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    Finding the Causes for Consistently Low Biased Stratiform Rainfall in Models Submitter: Varble, A., University of Utah Zipser, E., University of Utah Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Varble A, EJ Zipser, AM Fridlind, P Zhu, AS Ackerman, J Chaboureau, J Fan, A Hill, B Shipway, and C Williams. 2014. "Evaluation of cloud-resolving and limited area model simulations using TWP-ICE observations. 2. Precipitation microphysics." Journal of

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    Filling Gaps Within Instrument Records Submitter: Kennedy, A. D., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Kennedy AD, X Dong, and B Xi. 2015. "Cloud fraction at the ARM SGP site: reducing uncertainty with self-organizing maps." Theoretical and Applied Climatology, , . ONLINE. Example of a large, 40x30 (1200 class) SOM generated from 14 years of synoptic states provided by the North American

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    Satellite Inference of Thermals and Cloud Base Updraft Speeds Download a printable PDF Submitter: Zheng, Y., University of Maryland Area of Research: Vertical Velocity Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Zheng Y, D Rosenfeld, and Z Li. 2015. "Satellite inference of thermals and cloud base updraft speeds based on retrieved surface and cloud base temperatures." Journal of the Atmospheric Sciences, , . ONLINE. Validation of satellite-estimated

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    Intersecting Cold Pools: Convective Cloud Organization by Cold Pools over Tropical Ocean Download a printable PDF Submitter: Feng, Z., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, S Hagos, AK Rowe, CD Burleyson, MN Martini, and SP de Szoeke. 2015. "Mechanisms of convective cloud organization by cold pools over tropical warm ocean during the AMIE/DYNAMO field campaign." Journal of Advances in

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    Modeling Precipitating Cumulus Congestus Observed by the ARM Radar Suite During the MC3E Field Campaign Download a printable PDF Submitter: Mechem, D. B., University of Kansas Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Mechem DB, SE Giangrande, CS Wittman, P Borque, T Toto, and P Kollias. 2015. "Insights from modeling and observational evaluation of a precipitating continental cumulus event observed

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    Characterizing Uncertainties in Ice Particle Size Distributions Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: McFarquhar GM, T Hsieh, M Freer, JR Mascio, and BF Jewett. 2015. "The characterization of ice hydrometeor gamma size distributions as volumes in N0/lambda/mu phase space: implications for microphysical process modeling." Journal of

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    Regime Analysis to Identify the Contribution of Clouds to Surface Temperature Errors in GCMs Submitter: Van Weverberg, K., Met Office Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Van Weverberg K, CJ Morcrette, H Ma, SA Klein, and JC Petch. 2015. "Using regime analysis to identify the contribution of clouds to surface temperature errors in weather and climate models." Quarterly Journal Royal

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    Light Absorption of Primary Organic Aerosol Paper Named ACS Editors' Choice Download a printable PDF Submitter: Lu, Z., Argonne National Laboratory Streets, D. ., Argonne National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Lu Z, DG Streets, E Winijkul, F Yan, Y Chen, TC Bond, Y Feng, MK Dubey, S Liu, JP Pinto, and GR Carmichael. 2015. "Light absorption properties and radiative effects of primary organic aerosol emissions."

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    Liquid Water the Key to Arctic Cloud Radiative Closure Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Shupe MD, DD Turner, A Zwink, MM Thieman, EJ Mlawer, and T Shippert. 2015. "Deriving Arctic cloud microphysics at Barrow, Alaska: Algorithms, results, and radiative closure." Journal of Applied Meteorology and Climatology, 54(7),

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    Weather Prediction and Climate Simulation: a Meeting of the Models Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Phillips, T. J. G.L. Potter, D.L. Williamson, R.T. Cederwall, J.S. Boyle, M. Fiorino, J.J. Hnilo, J.G. Olson, S. Xie, J.J. Yio, Evaluating Parameterizations in General Circulation Models: Climate Simulation Meets Weather Prediction, Bulletin

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    Sticky Thermals: Evidence for a Dominant Balance Between Buoyancy and Drag in Cloud Updrafts Download a printable PDF Submitter: Romps, D., Lawrence Berkeley National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Romps DM and AB Charn. 2015. "Sticky thermals: Evidence for a dominant balance between buoyancy and drag in cloud updrafts." Journal of the Atmospheric Sciences, , doi:10.1175/JAS-D-15-0042.1. ONLINE. Hill's vortex (shown

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    A Deeper Look Into Shallow Boundary Layer Clouds Submitter: Bretherton, C. S., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Bretherton, C. S., J. R. McCaa, and H. Grenier. A New Parameterization for Shallow Cumulus Convection and Its Application to Marine Subtropical Cloud-Topped Boundary Layers. Part I: Description and 1D Results, Monthly Weather Review, 132(1), 864-882, 2004, doi:

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    Arctic Haze: Effect of Anthropogenic and Biomass Burning Aerosols Transported from Europe to the Arctic Download a printable PDF Submitter: Fast, J. ., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Marelle L, J Raut, JL Thomas, KS Law, B Quennehen, G Ancellet, J Pelon, A Schwarzenboeck, and JD Fast. 2015. "Transport of anthropogenic and biomass burning aerosols from Europe to the

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    Three-Dimensional Constrained Variational Analysis: Approach and Application Download a printable PDF Submitter: Zhang, M., Stony Brook University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Tang S and M Zhang. 2015. "Three-dimensional constrained variational analysis: Approach and application to analysis of atmospheric diabatic heating and derivative fields during an ARM SGP intensive observational period." Journal of Geophysical

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    Out with the Old, in with the New: McICA to Replace Traditional Cloud Overlap Assumptions Submitter: Pincus, R., NOAA - CIRES Climate Diagnostics Center Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Modeling Journal Reference: Pincus, R., R. Hemler, and S.A. Klein, 2006: Using Stochastically Generated Subcolumns to Represent Cloud Structure in a Large-Scale Model. Mon. Wea. Rev., 134, 3644-3656. As shown by the difference between the two panels, the

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    Good Is Not Enough: Improving Measurements of Atmospheric Particles Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Kassianov E, LK Berg, M Pekour, J Barnard, D Chand, C Flynn, M Ovchinnikov, A Sedlacek, B Schmid, J Shilling, J Tomlinson, and J Fast. 2015. "Airborne aerosol in situ measurements during TCAP: A closure study of total scattering."

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    ARM Program Surface Measurements for Aerosol Profiles Shown to Represent Integrated Column Measurements Submitter: Andrews, E., University of Colorado Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Andrews, E., P. J. Sheridan, J. A. Ogren, and R. Ferrare (2004), In situ aerosol profiles over the Southern Great Plains cloud and radiation test bed site: 1. Aerosol optical properties, J. Geophys. Res., 109, D06208, doi:10.1029/2003JD004025. Delle Monache, L., K.

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    An Improved Hindcast Approach for Evaluation and Diagnosis of Physical Processes in GCMs Download a printable PDF Submitter: Ma, H., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Ma H, C Chuang, SA Klein, M Lo, Y Zhang, S Xie, X Zheng, P Ma, Y Zhang, and TJ Phillips. 2015. "An improved hindcast approach for evaluation and

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    Clouds' Role in Sunlight Stopping Download a printable PDF Submitter: Burleyson, C. D., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Burleyson CD, CN Long, and JM Comstock. 2015. "Quantifying diurnal cloud radiative effects by cloud type in the Tropical Western Pacific." Journal of Applied Meteorology and Climatology, , doi:10.1175/JAMC-D-14-0288.1. ONLINE. Sunlight streaks through clouds over the

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    ARM Observations Validate Climate Model for Tropical Cirrus Clouds Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Comstock, J.M., C. Jakob, Evaluation of tropical cirrus cloud properties derived from ECMWF model output and ground based measurements over Nauru Island, 2004, Geophys. Res. Ltr, Vol.31, L10106, doi:10.1029/2004GL019539. Composite

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    Continuous Dataset of Water Vapor Measurements Throws Water on Assumptions of Cirrus Cloud Formation Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Comstock, J. M., T. P. Ackerman, and D. D. Turner, 2004: Evidence of high ice supersaturation in cirrus clouds using ARM Raman lidar measurements. Geophys. Res. Letters, doi:10.1029/2004GL019705. To illustrate their

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    A "Little" Respect: Droplet Nucleation Finally Included in Global Climate Model Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Reflection of sunlight by clouds simulated with predicted droplet number with (dark blue) and without (green) the autoconversion feedback agrees remarkably well with the reflection

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    Probabilistic Approach Useful for Evaluating Cloud System Models Submitter: Jakob, C., Monash University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Jakob, C., R. Pincus, C. Hannay, and K.M. Xu (2004). Use of cloud radar observations for model evaluation: A probabilistic approach, J. Geophys. Res., 109, D03202, doi:10.1029/2003JD003473. In evaluating climate models, time and space represent key challenges

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    Self-Regulation Strikes a Balance Between Hydrological Cycle, Radiation Processes, and Intraseasonal Dynamic Variations Submitter: Stephens, G. L., Colorado State University Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Stephens, Graeme L., Webster, Peter J., Johnson, Richard H., Engelen, Richard, L'Ecuyer, Tristan. 2004: Observational Evidence for the Mutual Regulation of the Tropical Hydrological Cycle and Tropical

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    Splitting the Solar Spectrum: Sometimes Less Is Better Than More Submitter: Pawlak, D. T., Pennsylvania State University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Pawlak, DT, EJ Clothiaux, MF Modest, and JNS Cole. 2004. Full-Spectrum Correlated-k Distribution for Shortwave Atmospheric Radiative Transfer. Journal of the Atmospheric Sciences 61: 2588-2601. Of all the physical and dynamical calculations

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    Earth Lightens Up Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Wild, M., H. Gilgen, A. Roesch, A. Ohmura, C. N. Long, E. G. Dutton, B. Forgan, A. Kallis, V. Russak, and A. Tsvetkov, (2005): From dimming to brightening: Decadal changes in solar radiation at the Earth's surface, Science, 308, Issue 5723, 847-850, [DOI:10.1126/science.1103215] Global distribution of surface observation

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    Aerosol Experiment Results Featured in Technical Journal Submitter: Sheridan, P., U.S. Department of Commerce/NOAA Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Sheridan, P, W Arnott, J Ogren, E Andrews, D Atkinson, D Covert, H Moosmuller, A Petzold, B Schmid, A Strawa, R Varma, and A Virkkula. 2005. "The Reno Aerosol Optics Study: An evaluation of aerosol absorption measurement methods." Aerosol Science and Technology 39(1):1-16. This magnification

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    Correction Method for Infrared Detector Confirmed; Error in Clear Sky Bias Condition Remains Unresolved Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: N/A AERI data from January 2004 at the ARM North Slope of Alaska locale shows the observed radiance for two AERI systems with significantly different hot blackbody temperatures. Residuals are within 1% of the ambient radiance

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    Small Processes Make a Big Difference in Model Outcomes Submitter: Cole, J. N., Canadian Centre for Climate Modelling and Analysis Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Cole, J. N. S., H. W. Barker, D. A. Randall, M. F. Khairoutdinov, and E. E. Clothiaux (2005), Global consequences of interactions between clouds and radiation at scales unresolved by global climate models, Geophys. Res. Lett., 32,

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    Aerosols Help Clouds Warm Up Arctic Submitter: Lubin, D., National Science Foundation Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Lubin, D., and A.M. Vogelmann, 2006: A climatologically significant aerosol longwave indirect effect in the Arctic, Nature, 439, 26 January, 453-456, doi:10.1038/nature04449 In a process known as the first aerosol indirect effect, enhanced aerosol concentrations cause the droplets in a cloud to be smaller and more

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    A Comparison of Integrated Water Vapor Sensors: WVIOP-96 Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 The 1996 Water Vapor Intensive Operations Period (WVIOP-96) was conducted at the SGP CART central facility in September in order to assess the skill of a wide variety of sensors in measuring atmospheric water

  16. Research Highlight

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    Weather Forecasts Help to Understand Climate Model Biases Submitter: Klein, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Klein, Stephen A., X. Jiang, J. Boyle, S. Malyshev, and S. Xie, 2006: Diagnosis of the summertime warm and dry bias over the U. S. Southern Great Plains in the GFDL climate model using a weather forecasting approach. Geophys. Res. Lett., 33,

  17. Research Highlight

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    On Thin Ice: Retrieval Algorithms for Ice Clouds Examined for Improvements Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: An Intercomparison of Microphysical Retrieval Algorithms for Upper Tropospheric Ice Clouds. Jennifer M. Comstock, Robert d'Entremont, Daniel DeSlover, Gerald G. Mace, Sergey Y. Matrosov, Sally A. McFarlane, Patrick Minnis, David Mitchell,Kenneth

  18. Research Highlight

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    Shallow Clouds Make the Case for Remote Sensing Instrumentation Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: McFarlane, S. A., and W. W. Grabowski (2007). Optical properties of shallow tropical cumuli derived from ARM ground-based remote sensing, Geophys. Res. Lett., 34, L06808, doi:10.1029/2006GL028767. In this figure, the lines indicate theoretical calculations of cloud

  19. Research Projects

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    Past Research Projects Composite-to-Steel Joint Integrity Monitoring and Assessment Collaboration between Los Alamos National Laboratory and the University of California at San Diego (UCSD) Jacobs School of Engineering Contact Institute Director Charles Farrar (505) 663-5330 Email UCSD EI Director Michael Todd (858) 534-5951 Professional Staff Assistant Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505) 665-8899 Email UCSD Faculty and Graduate Students Professor

  20. Research Highlight

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    Radiative and Thermodynamic Responses to Uncertainty in Aerosol Extinction Profiles Download a printable PDF Submitter: Feng, Y., Argonne National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Feng Y, R Kotamarthi, R Coulter, C Zhao, and M Cadeddu. 2016. "Radiative and Thermodynamic Responses to Aerosol Extinction Profiles during the Pre-monsoon Month over South Asia." Atmospheric Chemistry and Physics, 16(1), 247-264. WRF-Chem

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    Exploring Stratocumulus Cloud-Top Entrainment Processes and Parameterizations by Using Doppler Download a printable PDF Submitter: Albrecht, B. A., University of Miami Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Albrecht B, M Fang, and V Ghate. 2016. "Exploring Stratocumulus Cloud-Top Entrainment Processes and Parameterizations by Using Doppler Cloud Radar Observations." Journal of the Atmospheric Sciences, 73(2), 10.1175/JAS-D-15-0147.1.

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    Ensemble-Constrained Variational Analysis of Atmospheric Forcing Data and Its Application Download a printable PDF Submitter: Zhang, M., Stony Brook University Tang, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Tang S, M Zhang, and S Xie. 2016. "An ensemble constrained variation alanalysis of atmospheric forcing data and its application to evaluate clouds in

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    Back to Basics: Theoretical Studies on Storm Clouds and Implications for Modeling Download a printable PDF Submitter: Morrison, H. C., NCAR Lebo, Z., University of Wyoming Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Morrison H. 2016. "Impacts of Updraft Size and Dimensionality on the Perturbation Pressure and Vertical Velocity in Cumulus Convection. Part II: Comparison of Theoretical and Numerical Solutions and Fully Dynamical Simulations."

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    Cloud Droplet Spectral Shape Sheds New Light on Aerosol-Cloud-Interaction Regimes Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Zhang, M., Stony Brook University Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Chen J, Y Liu, M Zhang, and Y Peng. 2016. "New understanding and quantification of the regime dependence of aerosol-cloud interaction for studying aerosol indirect

  5. Research Highlight

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    The Vertical Structure of Cloud Radiative Forcing at the ACRF SGP Revealed by 8 Years of Continuous Measurements Submitter: Mace, G., University of Utah Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Accepted to Journal of Climate, 2007. Figure 1. Cloud occurrence, coverage, radiative forcing, and radiation effects over a composite annual cycle that is derived by averaging all observations collected during a

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    General Formulation for Representing Cloud-to-Rain Transition in Atmospheric Models Submitter: Liu, Y., Brookhaven National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol, Cloud Modeling, Cloud Properties Journal Reference: Liu, Y., P. H. Daum, R. McGraw, M. Miller, and S. Niu, 2007: Theoretical formulation for autoconversion rate of cloud droplet concentration. Geophys. Res. Lett., 34, L116821, doi:10.1029/2007GL030389

  7. Research Highlight

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    Integrated Water Vapor and Cloud Liquid Water at MCTEX Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Integrated water vapor and cloud liquid water measurements were obtained during the Maritime Continent Thunderstorm Experiment (MCTEX) by Eugene Clothiaux and Tom Ackerman of Penn State University using an ARM

  8. Research Highlight

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    A Climatology of Midlatitude Continental Cloud Properties and Their Impact on the Surface Radiation Budget Submitter: Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Dong, X., P. Minnis, and B. Xi, 2005: A climatology of midlatitude continental clouds from ARM SGP site. Part I: Low-level Cloud Macrophysical, microphysical and radiative properties. J. Climate. 18, 1391-1410. Dong, X., B. Xi, and P.

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    Modification of the Atmospheric Boundary Layer by a Small Island: Observations from Nauru Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Matthews, S., J. M. Hacker, J. Cole, J. Hare, C. N. Long, and R. M. Reynolds, (2007): Modification of the atmospheric boundary layer by a small island: observations from Nauru, MWR, Vol. 135, No. 3, pages 891–905. Figure 1.

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    Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate? Submitter: Prenni, A. J., Colorado State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Prenni, A. J., J. Y. Harrington, M. Tjernstrom, P. J. DeMott, A. Avramov, C. N. Long, S. M. Kreidenweis, P. Q. Olsson, and J. Verlinde, (2006): Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate?, BAMS, Vol.88, Iss. 4; pg. 541-550. ACIA, 2004: Impacts of a Warming

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    Study Aerosol Humidity Effects Using the ARM Measurements Submitter: Li, Z., University of Maryland Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Jeong, M.-J., Z. Li, E. Andrews, and S.-C. Tsay (2007). Effect of aerosol humidification on the column aerosol optical thickness over the Atmospheric Radiation Measurement Southern Great Plains site, J. Geophys. Res., 112, D10202, doi:10.1029/2006JD007176. (a)-(j) Column-mean aerosol humidification factor as

  12. Research Highlight

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    A Bulk Parameterization of Giant Cloud Condensation Nuclei Download a printable PDF Submitter: Kogan, Y., University of Oklahoma - CIMMS Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Mechem, D. B., and Y. L. Kogan, 2007: A bulk parameterization of giant CCN. J. Atmos. Sci., conditionally accepted. Mean quantities as a function of GCCN concentration for polluted (squares) and clean (diamonds) background CCN conditions. Radiative

  13. Research Highlight

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    Use of ARM Products in Reanalysis Applications and IPCC Model Assessment Download a printable PDF Submitter: Walsh, J. E., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Walsh, J. E., W. L. Chapman, and D. H. Portis: Arctic clouds and radiative fluxes in large-scale atmospheric reanalysis. Submitted to the Journal of Climate. Figure 1. Monthly mean cloud fraction is shown here from ARM-observations

  14. Research Highlight

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    Development of a New Method for Estimating Evapotranspiration Using ARM Measurements Submitter: Li, Z., University of Maryland Area of Research: Surface Properties Working Group(s): Radiative Processes Journal Reference: Wang, K., P. Wang, Z. Li, M. Cribb, and M. Sparrow (2007). A simple method to estimate actual evapotranspiration from a combination of net radiation, vegetation index, and temperature, J. Geophys. Res., 112, D15107, doi:10.1029/2006JD008351. Wang, K., Z. Li, and M. Cribb (2006).

  15. Research Highlight

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    The Significance of Multilayer Cloud Systems in Tropical Convection Download a printable PDF Submitter: Stephens, G. L., Colorado State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Stephens, GL, and NB Wood. 2007. "Properties of tropical convection observed by millimeter-wave radar systems." Monthly Weather Review 135: 821-842. Storm classifications (derived from k-means clustering analysis) applied to MWR

  16. Research Highlight

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    Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with SCAM, CAPT Forecasts and M-PACE Observations Download a printable PDF Submitter: Liu, X., University of Wyoming Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Liu, X, S Xie, and SJ Ghan. 2007. "Evaluation of a new mixed-Phase cloud microphysics parameterization with the NCAR single column climate model (SCAM) and ARM M-PACE

  17. Research Highlight

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    a Cloud-Resolving Model to Identify the Role of Aerosols on Clouds and Precipitation Download a printable PDF Submitter: GSFC, N., NASA GSFC Area of Research: Cloud Distributions/Characterizations Working Group(s): Aerosol, Cloud Modeling Journal Reference: Tao, W.-K., X. Li, A. Khain, T. Matsui, S. Lang, and J. Simpson, 2007: The role of atmospheric aerosol concentration on deep convective precipitation: Cloud-resolving model simulations. J. Geophy. Res., (accepted). Zeng, X., W.-K. Tao, S.

  18. Research Highlight

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    Cloud Tomography: a Novel Method for Determining 3D Cloud Liquid Water Distribution Download a printable PDF Submitter: Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Huang, D., Y. Liu, and W. Wiscombe, 2007a: Determination of cloud liquid water distribution using 3D cloud tomography. J. Geophys. Res., submitted. Cloud tomography is a novel method for determining cloud water

  19. Research Highlight

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    Five-Year Statistics of Shallow Clouds at the ACRF SGP Site Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Kassianov, E., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Berg, LK, and EI Kassianov. 2008. "Temporal variability of fair-weather cumulus statistics at the ARM SGP site." Journal of Climate 21, 3344-3358. Figure 1. Five-year mean ARSCL VAP

  20. Research Highlight

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    Intercomparison of Longwave Radiative Heating Algorithms Submitter: Baer, F., University of Maryland Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Baer, F., N. Arsky, J. J. Charney, and R. G. Ellingson. 1996. "Intercomparison of Heating Rates Generated by Global Climate Model Longwave Radiation Codes." J. Geoph. Res., 101, D21, 26589-26603. 30 levels of longwave heating rates for all algorithms

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    ARM QCRad Goes Global Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Long, CN, and Y Shi. 2008. "An automated quality assessment and control algorithm for surface radiation measurements." The Open Atmospheric Science Journal 2: 23-37, doi: 10.2174/1874282300802010023. Figure: QCRad downwelling (top) and upwelling (bottom) longwave (LW) comparison

  2. Research Highlight

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    Characterizing Mixed-Phase Clouds from the Ground: a Status Report Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Shupe, MD, JS Daniel, G De Boer, EW Eloranta, P Kollias, E Luke, CN Long, DD Turner, and J Verlinde. 2008. "A focus on mixed-phase clouds: The status of ground-ba sed observational methods." Bulletin of the American Meteorological Society,

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    Cloud Susceptibility Measures Potential Cloud Sensitivity to First Aerosol Indirect Effect Download a printable PDF Submitter: Oreopoulos, L., NASA Platnick, S., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Platnick, S, and L Oreopoulos. 2008. "Radiative susceptibility of cloudy atmospheres to droplet number perturbations: 1. Theoretical analysis and examples from MODIS." Journal of

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    Single-Scattering Properties of Aggregates of Bullet Rosettes in Cirrus Download a printable PDF Submitter: Um, J., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Um, J, and GM McFarquhar. 2007. "Single-scattering properties of aggregates of bullet rosettes in cirrus." Journal of Applied Meteorology and Climatology 46, 757-775. Two images of idealized geometry

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    Shortwave Absorption in Tropical Clouds Download a printable PDF Submitter: McFarlane, S. A., U.S. Department of Energy Mather, J. H., Pacific Northwest National Laboratory Ackerman, T. P., University of Washington Liu, Z., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: McFarlane, SA, JH Mather, TP Ackerman, and Z Liu. 2008. "Effect of clouds on the vertical distribution of SW absorption in the

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    Measuring Climate Model Skill in Producing Present-Day Clouds Download a printable PDF Submitter: Pincus, R., NOAA - CIRES Climate Diagnostics Center Batstone, C., NOAA - CIRES Climate Diagnostics Center Hofmann, R. P., University of Colorado, Boulder/NOAA - ESRL Taylor, K. E., Lawrence Livermore National Laboratory Gleckler, P. J., Lawrence Livermore National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Modeling Journal Reference: Pincus, R, CP Batstone, RJP Hofmann,

  7. Research Highlight

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    Assessment of CloudSat Using ARM, AMF, and CloudNet Observations Download a printable PDF Submitter: Protat, A., Australian Bureau of Meterology May, P. T., Bureau of Meteorology O'Connor, E. J., University of Reading Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Submitted. PDF of cloud reflectivity (upper-left), cloud top height (upper-right), thickness (lower-left), and cloud base height (lower right) as measured by the Darwin

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    A Simple Algorithm to Find Cloud Optical Depth Applied to Thin Ice Clouds Download a printable PDF Submitter: Barnard, J., University of Nevada Reno Long, C. N., NOAA Global Monitoring Division/CIRES Kassianov, E., Pacific Northwest National Laboratory McFarlane, S. A., U.S. Department of Energy Comstock, J. M., Pacific Northwest National Laboratory Freer, M., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations

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    Evaluate the Diurnal Cycle in the Multiscale Modeling Framework Using Satellite and ARM Data Download a printable PDF Submitter: Zhang, Y., Lawrence Livermore National Laboratory Klein, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Zhang, Y, SA Klein, C Liu, B Tian, RT Marchand, JM Haynes, RB McCoy, Y Zhang, and TP Ackerman. 2008. "On the diurnal cycle of deep

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    Vertical Variation of Cloud Droplet Size Using Ship and Space-borne R/S Data Download a printable PDF Submitter: Li, Z., University of Maryland Chen, R., University of Maryland Wood, R., University of Washington Chang, F., Science Systems and Applications, Inc. Ferraro, R., NOAA/NESDIS, WWBG Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Chen, R, R Wood, Z Li, R Ferraro, and F Chang. 2008. "Studying the vertical variation of

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    Structure of Cirrus Properties and Its Coupling with the State of the Large-Scale Atmosphere Download a printable PDF Submitter: Ivanova, K., Pennsylvania State University Ackerman, T. P., University of Washington Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Ivanova K and TP Ackerman. 2009. "Tracking nucleation-growth-sublimation in cirrus clouds using ARM millimeter wavelength radar observations." Journal of

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    Estimating Fractional Sky Cover from Spectral Measurements Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Min, Q., State University of New York, Albany Wang, T., State University of New York, Albany Duan, M., Institute of Atmospheric Physics/Chinese Academy of Science Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Min Q, T Wang, CN Long, and M Duan. 2008. "Estimating fractional sky

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    Significant Decadal Brightening over the Continental United States Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Dutton, E. G., NOAA/OAR/ESRL Augustine, J., National Oceanic and Atmospheric Administration Wiscombe, W. J., Brookhaven National Laboratory Wild, M., Institute for Atmospheric and Climate Science - ETH Zurich McFarlane, S. A., U.S. Department of Energy Flynn, C. J., Pacific Northwest National Laboratory Area of Research: Radiation Processes

  14. Research Highlight

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    Single-Scattering Properties of Aggregates of Plates Download a printable PDF Submitter: Um, J., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Um J and GM McFarquhar. 2009. "Single-scattering properties of aggregates of plates." Quarterly Journal Royal Meteorological Society, 135(639), 10.1002/qj.378. Aggregates of plates imaged by Cloud

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    Thawing the Mystery of Extra Ice Crystals Download a printable PDF Submitter: Fan, J., Pacific Northwest National Laboratory Ovchinnikov, M., Pacific Northwest National Laboratory Comstock, J. M., Pacific Northwest National Laboratory McFarlane, S. A., U.S. Department of Energy Khain, A., The Hebrew University of Jerusalem Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Fan J, M Ovtchinnikov, JM Comstock, SA McFarlane, and A Khain.

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    Analyzing the Contribution of Aerosols to an Observed Increase in Direct Normal Irradiance Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Riihimaki, L., Pacific Northwest National Laboratory Vignola, F., University of Oregon Area of Research: Radiation Processes Working Group(s): Aerosol, Radiative Processes Journal Reference: Riihimaki LD, FE Vignola, and CN Long. 2009. "Analyzing the contribution of aerosols to an observed increase in direct normal

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    Variations of Meridional Aerosol Distribution and Solar Dimming Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Kishcha, P., Tel-Aviv University Starobinets, B., Tel-Aviv University Kalashnikova, O., Jet Propulsion Laboratory Alpert, P., Tel-Aviv University Area of Research: Radiation Processes Working Group(s): Aerosol, Radiative Processes Journal Reference: Kishcha P, B Starobinets, O Kalashnikova, CN Long, and P Alpert. 2009. "Variations of

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    Global Dimming and Brightening: an Update Beyond 2000 Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Wild, M., Institute for Atmospheric and Climate Science - ETH Zurich Truessel, B., Institute for Atmospheric and Climate Science - ETH Zurich Ohmura, A., Swiss Federal Institute of Technology Koenig-Langlo, G., Alfred Wegener Institute Dutton, E. G., NOAA/OAR/ESRL Tsvetkov, A. V., World Radiation Data Centre Area of Research: Radiation Processes Working

  19. Research Highlight

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    Using the ACRF Shortwave Spectrometer to Study the Transition Between Clear and Cloudy Regions Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Chiu, J., University of Reading Knyazikhin, Y., Boston University Pilewskie, P., University of Colorado Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Chiu C, A Marshak, Y Knyazikhin, P Pilewskie, and W Wiscombe. 2009.

  20. Research Highlight

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    Seasonal Variation of the Physical Properties of Marine Boundary Clouds Download a printable PDF Submitter: Zhang, M., Stony Brook University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Lin W, M Zhang, and NG Loeb. 2009. "Seasonal variation of the physical properties of marine boundary layer clouds off the California coast." Journal of Climate, 22(10), doi:10.1175/2008JCLI2478.1. Image (a). Seasonal

  1. Research Highlight

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    Improving Cloud Parameterizations in Climate Models: Implications from CAM3 and WRF Simulations Download a printable PDF Submitter: Wang, W., Pacific Northwest National Laboratory Liu, X., University of Wyoming Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Wang W, X Liu, S Xie, J Boyle, and SA McFarlane. 2009. "Testing ice microphysics parameterizations in the NCAR Community Atmospheric Model Version 3

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    Satellite Retrievals of Mixed-phase Cloud Properties Download a printable PDF Submitter: Ou, S., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Ou SS, KN Liou, XJ Wang, A Dybdahl, M Mussetto, LD Carey, J Niu, JA Kankiewicz, S Kidder, and TH Von der Haar. 2009. "Retrievals of mixed-phase cloud properties during the National Polar-Orbiting Operational Environmental Satellite System."

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    Multifractal Analysis of Radiation in Clouds: 5000km to 50cm Submitter: Lovejoy, S., McGill University Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Lovejoy, S., D. Schertzer, J. D. Stanway, 2001: "Direct Evidence of planetary scale atmospheric cascade dynamics," Phys. Rev. Lett. 86(22): 5200-5203. Left: Power spectrum of the 5 different aircraft measured liquid water data sets from the FIRE experiment

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    SPLAT Makes Its Mark in Flying Research Laboratory Download a printable PDF Submitter: Cziczo, D. J., Massachusetts Institute of Technology Ghan, S. J., Pacific Northwest National Laboratory Flynn, C. J., Pacific Northwest National Laboratory Hubbe, J., Pacific Northwest National Laboratory Laskin, A., Pacific Northwest National Laboratory Roeder, L. R., Pacific Northwest National Laboratory Ronfeld, D., Pacific Northwest National Laboratory Schmid, B., Pacific Northwest National Laboratory

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    Improving the Numerical Simulation of Squall Lines Download a printable PDF Submitter: Morrison, H. C., NCAR Thompson, G., NCAR Tatarskii, V., Georgia Institute of Technology Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Morrison HC, G Thompson, and V Tatarskii. 2009. "Impact of cloud microphysics on the development of trailing stratiform precipitation in a simulated squall line: Comparison of one- and two-moment schemes."

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    Profiling Capability of High-Resolution Oxygen A-band Spectroscopy for Stratus Cloud Cover Submitter: Davis, A. B., Jet Propulsion Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Davis AB, IN Polonsky, and A Marshak. 2009. Space-Time Green Functions for Diffusive Radiation Transport, in Application to Active and Passive Cloud Probing. In Light Scattering Reviews, Volume 4, pp. 169-292. Ed. by A.A. Kohkanovsky, Heidelberg,

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    Detangling Convective Oscillations at ARM Tropical Western Pacific Site: Manus Submitter: Wang, Y., Department of Geography Long, C. N., NOAA Global Monitoring Division/CIRES Mather, J. H., Pacific Northwest National Laboratory Liu, X., Institute of Earth Environment Area of Research: Radiation Processes Working Group(s): Cloud Properties Journal Reference: Wang Y, C Long, J Mather, and X Liu. 2010. "Convective signals from surface measurements at ARM Tropical Western Pacific site:

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    Investigating Water Vapor Variability by Ground-Based Microwave Radiometry Download a printable PDF Submitter: Kneifel, S., McGill University Crewell, S., University of Cologne Loehnert, U., University of Cologne Schween, J. H., Inst. of Geophysics and Meteorology Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Kneifel S, S Crewell, U Löhnert, and J Schween. 2009. "Investigating water vapor variability by

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    Global Variability of Mesoscale Convective System Anvil Structure from A-train Satellite Data Submitter: Yuan, J., Nanjing University Houze, R., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Yuan J and RA Houze. 2010. "Global variability of mesoscale convective system anvil structure from A-train satellite data." Journal of Climate, 23, 5864-5888. Figure. 1 Annual mean (2007) climatology of anvil

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    Black Carbon Aerosols and the Third Polar Ice Cap Submitter: Menon, S., Lawrence Berkeley National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Menon S, D Koch, G Beig, S Sahu, J Fasullo, and D Orlikowski. 2009. "Black carbon aerosols and the third polar ice cap." Atmospheric Chemistry and Physics, 9, 26593-26625. Recent thinning of glaciers over the Himalayas (sometimes referred to as

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    CCN Activity and Mixing Rules of Isoprene Secondary Organic Aerosol (SOA) and Sulfate Download a printable PDF Submitter: Martin, S. T., Harvard University Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: King SM, T Rosenoern, JH Shilling, Q Chen, Z Wang, G Biskos, KA McKinney, U Poeschl, and ST Martin. 2010. "Cloud droplet activation of mixed organic-sulfate particles produced by the photooxidation of

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    Ice Nucleation Link to Aerosols for Global Models Download a printable PDF Submitter: DeMott, P. J., Colorado State University Liu, X., University of Wyoming Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: DeMott PJ, AJ Prenni, X Liu, SM Kreidenweis, MD Petters, CH Twohy, MS Richardson, T Eidhammer, and DC Rogers. 2010. "Predicting global atmospheric ice nuclei distributions and their impacts on

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    Mechanisms Affecting the Transition from Shallow to Deep Convection over Land Download a printable PDF Submitter: Zhang, Y., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Zhang Y and SA Klein. 2010. "Mechanisms affecting the transition from shallow to deep convection over land: Inferences from observations of the diurnal cycle collected at the ARM Southern Great

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    Impact of Horizontal Resolution on Climate Model Simulations of Tropical Moist Processes Download a printable PDF Submitter: Boyle, J., Lawrence Livermore National Laboratory Klein, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Boyle JS and SA Klein. 2010. "Impact of horizontal resolution on climate model forecasts of tropical precipitation and diabatic heating

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    Biases in Column Absorption for Fractal Clouds Submitter: Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marshak, Alexander; Davis, Anthony; Wiscombe, Warren; Ridgway, William; Cahalan, Robert; 1998: "Biases in Shortwave Column Absorption in the Presence of Fractal Clouds," J. Climate 11(3):431-446. Figure 1: Water vapor transmission spectra for solar zenith angle of 60 degree. From the top:

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    Increased Accuracy for Sky Imager Retrievals Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Long CN. 2010. "Correcting for circumsolar and near-horizon errors in sky cover retrievals from sky images." The Open Atmospheric Science Journal, 4, doi:10.2174/1874282301004010045. Long CN, JM Sabburg, J Calbo, and D Pages. 2006. "Retrieving

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    Comparison of Arctic Clouds Between ECMWF Simulations and ARM Observations at the NSA Download a printable PDF Submitter: Zhao, M., National Oceanic and Atmospheric Administration Wang, Z., University of Wyoming Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: N/A Figure 1: Monthly-averaged vertical distribution of cloud fraction from the observation (a) and the ECMWF model (b), and their differences (c). Both

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    General Macrophysical and Microphysical Properties of Deep Convective Clouds as Observed by MODIS Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: N/A Distributions of cloud optical depth from Aqua in four regions. The mean and standard deviation of the distributions are given for each region indicated by latitude and longitude range in each panel. The means and

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    Estimating Glaciation Temperature of Deep Convective Clouds with Remote Sensing Data Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: N/A (a) A conceptual diagram of cloud particle size vertical evolution inside a deep convective cloud. (b) Cloud side scanner retrievals of (left) particle size and (right) cloud phase. Homogeneous freezing is inefficient at temperatures

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    New Insight on the Atmosphere's Tiniest Particles Download a printable PDF Submitter: Smith, J., University of California, Irvine McMurry, P. ., University of Minnesota Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Smith JN, KC Barsanti, HR Friedli, M Ehn, M Kulmala, DR Collins, JH Scheckman, BJ Williams, and PH McMurry. 2010. "Observations of aminium salts in atmospheric nanoparticles and possible climatic implications." Proceedings of

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    Progress Towards Climate Projections of Central U.S. Rainfall Using a Global Model with Embedded Explicit Convection Download a printable PDF Submitter: Pritchard, M. S., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Pritchard MS, MW Moncrieff, and RC Somerville. 2011. "Orogenic propagating precipitation systems over the US in a global climate model with embedded

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    Characterizing Clouds at Arctic Atmospheric Observatories Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Shupe MD, VP Walden, E Eloranta, T Uttal, JR Campbell, SM Starkweather, and M Shiobara. 2011. "Clouds at Arctic atmospheric observatories, part I: occurrence and macrophysical properties." Journal of Applied Meteorology and Climatology, 50(3), 626-644.

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    Ground-Based Measurements in Support of Liquid-Dependent Ice Nucleation in Arctic Clouds Download a printable PDF Submitter: de Boer, G., University of Colorado, Boulder/CIRES Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: de Boer G, H Morrison, MD Shupe, and R Hildner. 2011. "Evidence of liquid dependent ice nucleation in high-latitude stratiform clouds from surface remote

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    Comparison of Microphysics Schemes in Idealized Supercell Thunderstorm Simulations Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Morrison H and JA Milbrandt. 2011. "Comparison of two-moment bulk microphysics schemes in idealized supercell thunderstorm simulations." Monthly Weather Review, 139, 1103-1130. Near-surface radar reflectivity after

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    Evaluation of CRM Intercomparison Simulations Using TWP-ICE Observations, Part 1 Download a printable PDF Submitter: Varble, A., University of Utah Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Varble AC, AM Fridlind, EJ Zipser, AS Ackerman, J Chaboureau, J Fan, A Hill, SA McFarlane, J Pinty, and B Shipway. 2011. "Evaluation of cloud-resolving model intercomparison simulations using TWP-ICE observations: Precipitation and cloud

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    Estimating the Ice Crystal Enhancement Factor in the Tropics Download a printable PDF Submitter: Zeng, X., Morgan State University GSFC, N., NASA GSFC Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Zeng X, W Tao, T Matsui, S Xie, S Lang, M Zhang, DO Starr, and X Li. 2011. "Estimating the ice crystal enhancement factor in the tropics." Journal of the

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    Dependence of the Single-Scattering Properties of Small Ice Crystals on Idealized Shape Models Download a printable PDF Submitter: Um, J., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Um J and GM McFarquhar. 2011. "Dependence of the single-scattering properties of small ice crystals on idealized shape

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    Indirect Impact of Atmospheric Aerosols on an Ensemble of Deep Convective Clouds Download a printable PDF Submitter: Grabowski, W., NCAR Morrison, H. C., NCAR Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Grabowski WW and H Morrison. 2011. "Indirect impact of atmospheric aerosols in idealized simulations of convective-radiative quasi-equilibrium. Part II: Double-moment microphysics." Journal of

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    Factors Influencing the Microphysics and Radiative Properties of Liquid-Dominated Arctic Clouds Download a printable PDF Submitter: Earle, M., Environment Canada Liu, P., Environment Canada Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Earle ME, PS Liu, JW Strapp, A Zelenyuk, D Imre, GM McFarquhar, NC Shantz, and WR Leaitch. 2011. "Factors influencing the microphysics and radiative properties of

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    Optical Properties of the 1997 TWP Smoke Event Submitter: Spinhirne, J., University of Arizona Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: N/A Figure 1. MPL image showing evolution of early September, 1997 smoke event at Manus, TWP. Figure 2. Selected aerosol extinction cross section profiles at the ARM TWP site during 1997 showing progression of aerosol loading. Figure 3. Cloud-cleared optical measurements at the TWP site from July 27 to

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    New Surface Albedo Data Set Enables Improved Radiative Transfer Calculations Download a printable PDF Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: McFarlane SA, K Gaustad, E Mlawer, C Long, and J Delamere. 2011. "Development of a high spectral resolution surface albedo product for the ARM Southern Great Plains central facility." Atmospheric Measurement Techniques, 4, 1713-1733. Time

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    Snow Particle Observations in Arctic Clouds Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Morrison H, P Zuidema, GM McFarquhar, A Bansemer, and AJ Heymsfield. 2011. "Microphysical observations in shallow mixed-phase and deep frontal Arctic cloud systems." Quarterly Journal Royal Meteorological Society, 137(659), doi:10.1002/qj.840. Fitted size distribution intercept

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    Influence of Humidified Aerosols on Lidar Depolarization Below Ice-Precipitating Arctic Clouds Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies van Diedenhoven, B., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, and AS Ackerman. 2011. "Influence of humidified aerosol on lidar depolarization measurements below

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    A Dance of Aerosols Download a printable PDF Submitter: Song, C., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Song C, RA Zaveri, JE Shilling, ML Alexander, and M Newburn. 2011. "Effect of hydrophilic organic seed aerosols on secondary organic aerosol formation from ozonolysis of α-pinene." Environmental Science & Technology, 45(17), doi:10.1021/es201225c. The injection of alpha-pinene, a

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    Cloud-Top Humidity Inversions and the Maintenance of Arctic Mixed-Phase Stratocumulus Submitter: Solomon, A., NOAA/ESRL/Physical Sciences Division Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Solomon A, MD Shupe, O Persson, and H Morrison. 2011. "Moisture and dynamical interactions maintaining decoupled Arctic mixed-phase stratocumulus in the presence of a humidity inversion." Atmospheric

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    Modeling the Sensitivity of Convection to Tropospheric Humidity Download a printable PDF Submitter: Del Genio, A. D., National Aeronautics and Space Administration Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Del Genio AD. 2011. "Representing the sensitivity of convective cloud systems to tropospheric humidity in general circulation models." Surveys in Geophysics, , doi:10.1007/s10712-011-9148-9.

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    The Birth of a Cloud Droplet Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Ghan SJ, H Abdul-Razzak, A Nenes, Y Ming, X Liu, M Ovchinnikov, B Shipway, N Meskhidze, J Xu, and X Shi. 2011. "Droplet nucleation: Physically-based parameterizations and comparative evaluation." Journal of Advances

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    TOA Radiation Budget of Convective Core/Stratiform Rain/Anvil Clouds from Deep Convection Download a printable PDF Submitter: Feng, Z., Pacific Northwest National Laboratory Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, XQ Dong, BK Xi, C Schumacher, P Minnis, and M Khaiyer. 2011. "Top-of-atmosphere radiation budget of convective core/stratiform rain and anvil clouds from deep

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    Simulating the Impact of Aerosols on Tropical Deep Convection Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Morrison H and WW Grabowski. 2011. "Cloud-system resolving model simulations of aerosol indirect effects on tropical deep convection and its thermodynamic environment." Atmospheric Chemistry and Physics, 11(20),

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    Millimeter Wave Scattering from Ice Crystals and Their Aggregates Download a printable PDF Submitter: Botta, G., Pennsylvania State University Verlinde, J., The Pennsylvania State University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Botta G, K Aydin, J Verlinde, A Avramov, A Ackerman, A Fridlind, M Wolde, and G McFarquhar. 2011. "Millimeter wave scattering from ice crystals and their aggregates: Comparing cloud model simulations with X- and

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    Unraveling the Complexity of Arctic Mixed-Phase Clouds Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Morrison H, G de Boer, G Feingold, J Harrington, M Shupe, and K Sulia. 2011. "Resilience of persistent Arctic mixed-phase clouds." Nature Geoscience, 5, doi:10.1038/ngeo1332. A conceptual model that illustrates the primary processes and basic physical structure of persistent Arctic

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    Evaluation of Simulated Clouds and Radiation at the ARM Site Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Ghan, S.J. and Leung, L.R., 1999: "A Comparison of Three Different Modeling Strategies for Evaluating Cloud and Radiation Parameterizations," Monthly Weather Review 127( 9): 1967-1984. Observed and Simulated Column Water Vapor Column

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    Clouds Get in the Way: How Climate Models Calculate the Effects of Clouds on Earth's Warming Download a printable PDF Submitter: Qian, Y., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Qian Y, CN Long, H Wang, JM Comstock, SA McFarlane, and S Xie. 2012. "Evaluation of cloud fraction and its radiative effect simulated by IPCC AR4 global models against ARM surface observations."

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    Black Carbon Reduction of Snow Albedo Submitter: Kirchstetter, T. W., Lawrence Berkeley National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Hadley OL and TW Kirchstetter. 2012. "Black carbon reduction of snow albedo." Nature Climate Change, , doi:10.1038/nclimate1433. Spectrally weighted snow albedo over the 300-2,500 nm solar spectrum: derived from our experiments (dots, 1 standard deviation) and modelled using SNICAR

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    Modelling Future Changes in Surface Ozone: a Parameterized Approach Download a printable PDF Submitter: Bergmann, D., Lawrence Livermore National Laboratory Chuang, C., Lawrence Livermore National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Wild O, AM Fiore, DT Shindell, RM Doherty, WJ Collins, FJ Dentener, MG Schultz, S Gong, IA MacKenzie, G Zeng, P Hess, DJ Bergmann, S Szopa, JE Jonson, TJ Keating, and A Zuber. 2012. "Modelling

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    Tropical Rain Clouds Still a Challenge to Cloud-Resolving Models Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies Ackerman, A., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Fridlind AM, AS Ackerman, J Chaboureau, J Fan, WW Grabowski, AA Hill, TR Jones, MM Khaiyer, G Liu, P Minnis, H Morrison, L Nguyen,

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    Improved Simulation of Boundary Layer Clouds Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1. Comparison of Boundary Layer Clouds Schemes in Climate Models with Satellite Observations Key Contributors: James McCaa, as part of his Ph.D. dissertation at University of Washington Chris Bretherton, University of Washington Dennis Hartmann, University of

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    Mexico City Carbon-Containing Particle Composition Simulated Download a printable PDF Submitter: Zaveri, R., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Lee-Taylor J, S Madronich, B Aumont, M Camredon, A Hodzic, GS Tyndall, E Aperl, and RA Zaveri. 2012. "Explicit modeling of organic chemistry and secondary organic aerosol partitioning for Mexico City and its outflow plume." Atmospheric Chemistry and

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    Regional Controls on Ozone Precursors Will Have Different Impacts on Future Climate Download a printable PDF Submitter: Bergmann, D., Lawrence Livermore National Laboratory Chuang, C., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol Life Cycle Journal Reference: Fry MM, V Naik, JJ West, MD Schwartzkopf, AM Fiore, WJ Collins, FJ Dentener, DT Shindell, C Atherton, D Bergmann, BN Duncan, P Hess, IA

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    CAM5 Shows Reasonable Aerosol First Indirect Effects on Non-Precipitating Low Liquid Clouds Download a printable PDF Submitter: Zhao, C., Beijing Normal University Klein, S., Lawrence Livermore National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Zhao C, SA Klein, S Xie, X Liu, JS Boyle, and Y Zhang. 2012. "Aerosol first indirect effects on non-precipitating low-level

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    Many Forecast Errors Are Climate Errors Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Xie S, H Ma, JS Boyle, SA Klein, and Y Zhang. 2012. "On the correspondence between short- and long-timescale systematic errors in CAM4/CAM5 for the years of tropical convection." Journal of Climate, 25(22),

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    Diurnal Cycle of Monsoon Clouds, Precipitation, and Surface Radiation Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES May, P. T., Bureau of Meteorology Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: May PT, CN Long, and A Protat. 2012. "The diurnal cycle of the boundary layer, convection, clouds, and surface radiation in a coastal monsoon environment (Darwin

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    Anthropogenic Aerosols: a Clearer Understanding Submitter: Daum, P., Brookhaven National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Liu, Y., and P. H. Daum, 2002: "Indirect warming effect from dispersion forcing," Nature 419(6872):580-581. Figure 1. Key = Green symbols: triangle - FIRE, northeastern Pacific; Crossed circles - SOCEX, Southern Ocean; Filled circle - ACE1, Southern Ocean; Blue symbols: Filled circles - ASTEX 8,

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    How Aerosols Affect Cloud Properties in Arctic Mixed-Phase Stratocumulus Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Jackson RC, GM McFarquhar, AV Korolev, ME Earle, PS Liu, RP Lawson, S Brooks, M Wolde, A Laskin, and M Freer. 2012. "The dependence of ice microphysics on aerosol concentration in arctic mixed-phase

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    Influence of Observed Cirrus Microphysical Properties on Shortwave Radiation: a Case Study Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Nousiainen, T. P., University of Helsinki Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Mauno P, GM McFarquhar, T Nousiainen, M Timlin, M Kahnert, and P Raisanen. 2011. "The influence of cloud microphysical properties on shortwave radiation: A case study over Oklahoma."

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    Carbonaceous Aerosol Aging Mechanisms Improve Agreement of Global Simulations with Data Download a printable PDF Submitter: Dubey, M. K., Los Alamos National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: N/A Longitudinal and vertical distribution of global zonal mean hydrophobic to hydrophilic conversion time for carbonaceous aerosols with new laboratory aging mechanism. Impact of new aging mechanism on global zonal mean black carbon

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    Satellite Constraints on Cloud-Top Phase, Ice Size, and Asymmetry Parameter over Deep Convection Download a printable PDF Submitter: van Diedenhoven, B., NASA - Goddard Institute for Space Studies Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, AS Ackerman, and B Cairns. 2012. "Evaluation of hydrometeor phase and ice properties in cloud-resolving model

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    Progress in Understanding Water Vapor's Role in Models Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Time-height cross sections of water vapor mixing ratio, which is observed directly by the ARM Raman lidar at 10-min and approximately 100 m resolution, and relative humidity for 29 November through 2 December 2002. The bottom panel shows the comparison of

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    Observations Guide Low-Cloud Parameterization Development in the ECMWF Model Download a printable PDF Submitter: Ahlgrimm, M., European Centre for Medium-Range Weather Forecasts Forbes, R. M., European Centre for Medium-Range Weather Forecasts Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Ahlgrimm M and R Forbes. 2012. "The impact of low clouds on surface shortwave radiation in the ECMWF model."

  20. Research Highlight

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    The Influence of Regional Anthropogenic Emission Reductions on Aerosol Direct Radiative Forcing Download a printable PDF Submitter: Bergmann, D., Lawrence Livermore National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Yu H, M Chin, J West, C Atherton, N Bellouin, D Bergmann, I Bey, H Bian, T Diehl, G Forberth, P Hess, M Schulz, D Shindell, T Takemura, and Q Tan. 2012. "An HTAP multi-model assessment of the influence of regional

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Scale Shows True Weight of Aerosol Effects on Clouds Download a printable PDF Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: McComiskey A and G Feingold. 2012. "The scale problem in quantifying aerosol indirect effects." Atmospheric Chemistry and Physics, 12, doi:10.5194/acp-12-1031-2012. Differing values: Values derived from aircraft and surface observations,

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution Hitches Ride to Arctic Download a printable PDF Submitter: Zelenyuk-Imre, A., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Zelenyuk A, D Imre, J Beranek, E Abramson, J Wilson, and M Shrivastava. 2012. "Synergy between secondary organic aerosols and long-range transport of polycyclic aromatic hydrocarbons." Environmental Science & Technology, 46(22), doi:10.1021/es302743z. When airborne

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Metrics and Diagnostics for Climate Model Short-Range Hindcasts Download a printable PDF Submitter: Ma, H., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Ma H, S Xie, JS Boyle, SA Klein, and Y Zhang. 2012. "Metrics and diagnostics for precipitation-related processes in climate model short-range hindcasts." Journal of Climate, , . ACCEPTED. Pattern statistics

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 Floods Not a Complete Washout in U.S. Great Plains Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Lamb PJ, DH Portis, and A Zangvil. 2012. "Investigation of Large-Scale Atmospheric Moisture Budget and Land Surface Interactions over U.S. Southern Great Plains including for CLASIC (June 2007)." Journal of

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Shaking Things Up-What Triggers Atmospheric Convection in the West African Sahel? Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Life Cycle Journal Reference: Couvreux F, C Rio, F Guichard, M Lothon, G Canut, D Bouniol, and A Gounou. 2012. "Initiation of daytime local convection in a semi-arid region analysed with high-resolution simulations and AMMA observations." Quarterly

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Strong Impacts of Vertical Velocity on Cloud Microphysics and Implications for Aerosol Indirect Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Lu, C., Nanjing University of Information Science and Technology Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Lu C, Y Liu, S Niu, and AM Vogelmann. 2012. "Observed impacts of vertical velocity on cloud

  7. Research Highlight

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    Looking at the Full Spectrum for Water Vapor Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Mlawer EJ, VH Payne, J Moncet, JS Delamere, MJ Alvarado, and DD Tobin. 2012. "Development and recent evaluation of the MT_CKD model of continuum absorption." Philosophical Transactions of The Royal Society A, 370, doi:

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Development and Validation of a Black Carbon Mixing State Resolved Three-Dimensional Model Download a printable PDF Submitter: Fast, J. ., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Matsui H, M Koike, Y Kondo, N Moteki, JD Fast, and RA Zaveri. 2013. "Development and validation of a black carbon mixing state resolved three-dimensional model: Aging processes and radiative impact." Journal of

  9. Respiratory symptoms and lung function in oil mist-exposed workers

    SciTech Connect (OSTI)

    Jarvholm, B.; Bake, B.; Lavenius, B.; Thiringer, G.; Vokmann, R.

    1982-06-01

    The prevalence of respiratory symptoms was registered and ventilatory function was determined in 164 men exposed to oil mist. The average exposure time was 16.2 years. One hundred fifty-nine office workers served as controls. The exposed men reported more respiratory symptoms: 14% of the exposed nonsmokers v. 2% of the nonsmoking controls having cough at least three months a year. There were non significant differences between spirometric measurements and chest roentgenograms of the men exposed to oil mist and those of the office workers. The lung function of 25 nonsmoking exposed men was further examined with other lung function tests. The mean values for closing volume, slope of the alveolar plateau, total lung capacity, residual volume, elastic recoil at various lung volumes, and diffusion capacity did not differ significantly.

  10. Insights into the respiratory tract microbiota of patients with cystic fibrosis during early Pseudomonas aeruginosa colonization

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Keravec, Marlène; Mounier, Jérôme; Prestat, Emmanuel; Vallet, Sophie; Jansson, Janet K.; Burgaud, Gaëtan; Rosec, Sylvain; Gouriou, Stéphanie; Rault, Gilles; Coton, Emmanuel; et al

    2015-08-09

    Pseudomonas aeruginosa plays a major role in cystic fibrosis (CF) progression. Therefore, it is important to understand the initial steps of P. aeruginosa infection. The structure and dynamics of CF respiratory tract microbial communities during the early stages of P. aeruginosa colonization were characterized by pyrosequencing and cloning-sequencing. The respiratory microbiota showed high diversity, related to the young age of the CF cohort (mean age 10 years). Wide inter- and intra-individual variations were revealed. A common core microbiota of 5 phyla and 13 predominant genera was found, the majority of which were obligate anaerobes. A few genera were significantly moremore » prevalent in patients never infected by P. aeruginosa. Persistence of an anaerobic core microbiota regardless of P. aeruginosa status suggests a major role of certain anaerobes in the pathophysiology of lung infections in CF. Some genera may be potential biomarkers of pulmonary infection state.« less

  11. Mass-transport models to predict toxicity of inhaled gases in the upper respiratory tract

    SciTech Connect (OSTI)

    Hubal, E.A.C.; Fedkiw, P.S.; Kimbell, J.S. [North Carolina State Univ., Raleigh, NC (United States)

    1996-04-01

    Mass-transport (the movement of a chemical species) plays an important role in determining toxic responses of the upper respiratory tract (URT) to inhaled chemicals. Mathematical dosimetry models incorporate physical characteristics of mass transport and are used to predict quantitative uptake (absorption rate) and distribution of inhaled gases and vapors in the respiratory tract. Because knowledge of dose is an essential component of quantitative risk assessment, dosimetry modeling plays an important role in extrapolation of animal study results to humans. A survey of existing mathematical dosimetry models for the URT is presented, limitations of current models are discussed, and adaptations of existing models to produce a generally applicable model are suggested. Reviewed URT dosimetry models are categorized as early, lumped-parameter, and distributed-parameter models. Specific examples of other relevant modeling work are also presented. 35 refs., 11 figs., 1 tab.

  12. The Department of Energy Respiratory Acceptance Program for Supplied-Air Suits

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-02-04

    The supplied-air suits that protect DOE contractor and federal employees from exposure to harmful atmospheres and radioactive contaminants are not included in the National Institute for Occupational Safety and Health (NIOSH) certification process for respiratory protective devices. Therefore, with the awareness and acknowledgement of NIOSH and the Occupational Safety and Health Administration (OSHA), the Department established a system for acceptance testing of supplied-air suits.

  13. Research Tools

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software & Tools Development Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Software & Tools Development Over the years, ESnet

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Study Proposes New Scheme to Characterize Land-Atmosphere Interactions and Improve Climate Models Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Liu G, Y Liu, and S Endo. 2013. "Evaluation of surface flux parameterizations with long-term ARM observations." Monthly Weather Review, 141(2), doi:10.1175/MWR-D-12-00095.1. One of the three

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rain and Cloud Resistance Download a printable PDF Submitter: Flaherty, J., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Deng L, S McFarlane, and J Flaherty. 2013. "Characteristics associated with the Madden-Julian Oscillation at Manus Island." Journal of Climate, 26(10), doi:10.1175/JCLI-D-12-00312.1. Deep tropical clouds are sometimes called the engines of the global climate. They

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Unique Properties of the Arctic Stratiform Cloud-Top Region Submitter: Shupe, M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Sedlar J, MD Shupe, and M Tjernström. 2011. "On the relationship between thermodynamic structure and cloud top, and its climate significance in the Arctic." Journal of Climate, 25(7), doi:10.1175/JCLI-D-11-00186.1. Occurrence frequency of low-level, stratiform cloud cases used in the analysis

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Method Simulates 3D Ice Crystal Growth Within Clouds Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Harrington JY, K Sulia, and H Morrison. 2013. "A method for adaptive habit prediction in bulk microphysical models. Part I: theoretical development." Journal of the Atmospheric Sciences, 70(2), doi:10.1175/JAS-D-12-040.1. Harrington JY, K Sulia, and H Morrison. 2013.

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    When It Rains, It Doesn't Always Pour Download a printable PDF Submitter: Penide, G., Laboratoire d\'Optique Atmospherique Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Penide G, V Kumar, A Protat, and P May. 2013. "Statistics of drop size distribution parameters and rain rates for stratiform and convective precipitation during the North Australian wet season." Monthly Weather Review, 141(9), 10.1175 /mwr-d-12-00262.1. Measurements from the

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Seasonal Case Studies Reveal Significant Variance in Large-Scale Forcing Data Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, R.T Cederwall, M. Zhang, and J.J. Yio, Comparison of SCM and CSRM forcing data derived from the ECMWF model and from objective analysis at the ARM SGP site, J. Geophys. Res., 108(D16), 4499, doi:10.1029/2003JD003541, 2003.

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cotton-Ball Clouds Contained Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Berg LK, WI Gustafson, EI Kassianov, and D Liping. 2013. "Evaluation of a modified scheme for shallow convection: Implementation of CuP and case studies." Monthly Weather Review, 141, doi:10.1175/MWR-D-12-00136.1. Cumulus Potential (CuP) parameterization leads to improved forecasts of

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Automated Rain Rate Estimates Using the Ka-band ARM Zenith Radar (KAZR) Submitter: Chandra, A. S., McGill University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Chandra A, C Zhang, P Kollias, S Matrosov, and W Szyrmer. 2015. "Automated rain rate estimates using the Ka-band ARM Zenith Radar (KAZR)." Atmospheric Measurement Techniques, 8(1-15), doi:10.5194/amt-8-1-2015. ACCEPTED. Scatter plots of rain rates (R) observed from a video

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dust in the Wind... and the Clouds... and the Atmosphere Submitter: Sassen, K., University of Alaska, Fairbanks Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Sassen, K., P.J. DeMott, J.M. Propsero, and M.R. Poellot, Saharan Dust Storms and Indirect Aerosol Effects on Clouds: CRYSTAL-FACE Results, Geophys. Res. Ltt., 30(12), 1633, doi:10/1029/2003GL017371, 2003. PDL linear depolarization ratio (color scale on top) and relative returned power (in gray scale) of

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MBL Cloud Properties Derived from the Azores-AMF Observations Submitter: Dong, X., University of North Dakota Area of Research: Cloud Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Dong X, B Xi, A Kennedy, P Minnis, and R Wood. 2014. "A 19-month record of marine aerosol-cloud-radiation properties derived from DOE ARM AMF deployment at the Azores: Part I: Cloud fraction and single-layered MBL cloud properties." Journal of Climate, 27(10),

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Comparison of Mixed-layer Heights from Airborne HSRL and WRF-Chem During CARES Download a printable PDF Submitter: Scarino, A. J., Science Systems and Applications, Inc. Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Scarino AJ, MD Obland, JD Fast, SP Burton, RA Ferrare, CA Hostetler, LK Berg, B Lefer, C Haman, JW Hair, RR Rogers, C Butler, AL Cook, and DB Harper. 2014. "Comparison of mixed layer heights from airborne high spectral resolution

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Deciphering Raindrop Collisions with Dual-polarization Radar Download a printable PDF Submitter: Kumjian, M., Pennsylvania State University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Kumjian MR and OP Prat. 2014. "The impact of raindrop collisional processes on the polarimetric radar variables." Journal of the Atmospheric Sciences, 71(8), doi:10.1175/JAS-D-13-0357.1. (a) Changes in ZDR as a function

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Island-Induced Cloud Plumes Influence Tropical Atmospheric Measurements, Surface Radiation Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: McFarlane, S.A., Long, C.N., and Flynn, D., Nauru Island Effect Study, Fourteenth ARM Science Team Meeting, March 22 to 26, 2004, Albuquerque, New Mexico. Nauru Island, about 1,200 miles northeast of Papua New Guinea in the western South Pacific, is one of

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Shapes and Phases of Small Particles in Mixed-Phase Clouds Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: McFarquhar GM, J Um, and R Jackson. 2013. "Small cloud particle shapes in mixed-phase clouds." Journal of Applied Meteorology and Climatology, 52(5), doi:10.1175/JAMC-D-12-0114.1. Figure 1. Magnified images of four particles imaged

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Two Faces of Aerosols Download a printable PDF Submitter: Ovink, J., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Berg LK, M Shrivastava, RC Easter, JD Fast, EG Chapman, Y Liu, and RA Ferrare. 2015. "A New WRF-Chem Treatment for Studying Regional Scale Impacts of Cloud Processes on Aerosol and Trace Gases in Parameterized Cumuli." Geoscientific Model Development, 8, doi:10.5194/gmd-8-409-2015. A new

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM Data Used to Evaluate Reanalysis Results Download a printable PDF Submitter: Dong, X., University of North Dakota Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Dolinar E, X Dong, and B Xi. 2015. "Evaluation and intercomparison of clouds, precipitation, and radiation budgets in recent reanalyses using satellite-surface observations." Climate Dynamics, , DOI 10.1007/s00382-0, 10.1007/s00382-0. Figure 1. Monthly means of CF (a), SWDNsfc

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mountain-Induced Dynamics Influence Cloud Phase Distribution and Precipitation Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Dorsi SW, MD Shupe, PG Persson, DE Kingsmill, and LM Avallone. 2015. "Phase-specific characteristics of wintertime clouds across a mid-latitude mountain range." Monthly Weather Review, 143(10), doi:10.1175/MWR-D-15-0135.1. Multi-flight composite

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Clouds Re-gathered by Wind Shear Download a printable PDF Submitter: Yang, Q., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Yang Q, RC Easter, P Campuzano-Jost, JL Jimenez, JD Fast, SJ Ghan, H Wang, LK Berg, MC Barth, Y Liu, MB Shrivastava, B Singh, H Morrison, J Fan, CL Ziegler, M Bela, E Apel, GS Diskin, T Mikoviny, and A Wisthaler. 2015. "Aerosol transport and

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Evaluation of Subgrid-Scale Hydrometeor Transport Using a High-Resolution CRM Download a printable PDF Submitter: Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Wong M, M Ovchinnikov, and M Wang. 2015. "Evaluation of subgrid-scale hydrometeor transport schemes using a high-resolution cloud-resolving model." Journal of the Atmospheric Sciences, 72(9), doi:10.1175/JAS-D-15-0060.1. Clouds

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Storm Clouds Take Rain on Rollercoaster Ride Download a printable PDF Submitter: Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Wong M, M Ovchinnikov, and M Wang. 2015. "Evaluation of subgrid-scale hydrometeor transport schemes using a high-resolution cloud-resolving model." Journal of the Atmospheric Sciences, 72(9), doi:10.1175/JAS-D-15-0060.1. Strong updrafts within the cloud propel their

  14. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Data from Saharan Dust Storm Reveal Model Deficiencies Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Slingo, A., T.P. Ackerman, R.P. Allan, E.I. Kassianov, S.A. McFarlane, G.J. Robinson, J.C. Barnard, M.A. Miller, J.E. Harries, J.E. Russell , S. Dewitte, 2006: Observations of the impact of a major Saharan dust storm on the Earth's radiation budget. Geophys. Res. Lett., 33, L24817,

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Improving Entrainment Rate Parameterization Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Lu C, Y Liu, GJ Zhang, X Wu, S Endo, L Cao, Y Li, and X Guo. 2016. "Improving parameterization of entrainment rate for shallow convection with aircraft measurements and large-eddy simulations." Journal of the Atmospheric Sciences, 73(2), doi:10.1175/JAS-D-15-0050.1. Relationships

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quasi-Vertical Profiles - a New Way to Look at Polarimetric Radar Data PI Contact: Ryzhkov, A., National Severe Storms Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Ryzhkov A, P Zhang, H Reeves, M Kumjian, T Tschallener, S Trömel, and C Simmer. 2016. "Quasi-Vertical Profiles - A New Way to Look at Polarimetric Radar Data." Journal of Atmospheric and Oceanic Technology, 33(3), doi:10.1175/JTECH-D-15-0020.1. An example of composite

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tests of Single-Column Models with ARM Data Submitter: Randall, D. A., Colorado State University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Figure 1 Figure 2 One of the primary goals of ARM is to collect observations that can be used to test models of cloud formation and radiative transfer in the atmosphere. One class of such models, called "single-column models," is designed to predict the

  18. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    An Assessment of the ECMWF Model over the Arctic Land Using Observations from the Mixed-Phase Arctic Cloud Experiment Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S., S. A. Klein, J. J. Yio, A. C. M. Beljaars, C. N. Long, and M. Zhang, (2006): An Assessment of the ECMWF Model over the Arctic Land Using Observations from the ARM Mixed-Phase Arctic

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Retrieving Cloud Characteristics from Ground-Based Daytime Color All-Sky Images Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Long, C. N., J. M. Sabburg, J. Calbo, and D. Pages, (2006): Retrieving Cloud Characteristics from Ground-based Daytime Color All-sky Images, JTech, 23, No. 5, 633–652. Long, C. N., J. M. Sabburg, J. Calbo, and D. Pages, (2006): Papers of Note:

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Weather Forecasting in the Tropics with Climate Models Is Feasible Submitter: Boyle, J., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Climate Model Forecast Experiments for TOGA-COARE. J. Boyle,S. Klein,G. Zhang,S. Xie,X. Wei. Accepted by Monthly Weather Review Figure 1. Profiles of the apparent heat source (Q1) at the TOGA-COARE central site for the observations and

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Validation of CERES-MODIS Cloud Properties Using ARM Data Submitter: Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Dong, X., P. Minnis, B. Xi, S. Sun-Mack, and Y. Chen, 2007: Validation of CERES-MODIS stratus cloud properties using ground-based measurements at the DOE ARM SGP site. Accepted by J. Geophys. Res. Wielicki, B. A. and Co-authors (2000), CERES Validation Plan Overview, Release 4,

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Using ARM Cloud Data to Evaluate the Effect of a Land Surface on Clouds Download a printable PDF Submitter: GSFC, N., NASA GSFC Area of Research: Cloud Distributions/Characterizations Working Group(s): Aerosol, Cloud Modeling Journal Reference: Zeng, X., W.-K. Tao, M. Zhang, C. Peters-Lidard, S. Lang, J. Simpson, S. Kumar, S. Xie, J. L. Eastman, C.-L. Shie, and J. V. Geiger, 2007: Evaluating clouds in long-term cloud-resolving model simulations with observational data. J. Atmos. Sci. (in press).

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARM-Funded Algorithms Lead to Marked Improvements in Global Weather Forecast Model Submitter: Morcrette, J. J., European Centre for Medium-Range Weather Forecasts Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Properties Journal Reference: Morcrette, J.-J., H.W. Barker, J.N.S. Cole, M.J. Iacono, and R. Pincus, 2007: Impact of a new radiation package, McRad, in the ECMWF Integrated Forecasting System. Mon. Wea. Rev., Submitted. Figure 1a.

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sub-Grid Scale Cloud Variability Affects Vertical Structure of Clouds and Radiative Heating Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: McFarlane, S. A., J. H. Mather, and T. P. Ackerman (2007), Analysis of tropical radiative heating profiles: A comparison of models and observations, J. Geophys. Res., 112, D14218, doi:10.1029/2006JD008290. Comparison of

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Encountering a Longstanding Cloud Physics Question in the Arctic: How Is Ice Formed in Moderately Supercooled Clouds? Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Fridlind, A.M., A.S. Ackerman, G.M. McFarquhar, G. Zhang, M.R. Poellot, P.J. DeMott, A.J. Prenni and A.J. Heymsfield, 2007: Ice properties of single-layer stratocumulus during the

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Aerosol Effects on Liquid-Water Path of Thin Stratocumulus Clouds Download a printable PDF Submitter: Penner, J. E., University of Michigan Lee, S., University of Michigan Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: n/a Thin clouds with mean liquid-water path (LWP) of ~ 50 g m-2 cover 27.5% of the globe and thus play an important role in the Earth's radiation budget. Radiative fluxes at the Earth's surface and top of atmosphere (TOA) are very sensitive to

  7. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Validating Single Column Models with ARM Data Submitter: Somerville, R. C., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Iacobellis, S.F., McFarquhar, G.M., Mitchell, D.L., and Somerville, R.C.J., 2003: "The Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics," J. Climate 16(18): 2979-2996. Scientists validated the results of both models by

  8. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    CMBE - a New ACRF Data Product for Climate Studies Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Xie S, RB McCoy, SA Klein, RT Cederwall, WJ Wiscombe, EE Clothiaux, KL Gaustad, J Golaz, S Hall, MP Jensen, KL Johnson, Y Lin, CN Long, JH Mather, RA McCord, SA McFarlane, G Palanisamy, Y Shi, and DD Turner. 2010. "ARM Climate Modeling Best Estimate

  9. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Large-Scale Structures and Diabatic Heating and Drying Profiles Revealed by TWP-ICE Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Modeling Journal Reference: Xie S, T Hume, C Jakob, SA Klein, RB McCoy, and M Zhang. 2009. "Observed large-scale structures and diabatic heating and drying profiles during TWP-ICE." Journal of Climate, 23(1), . Analyzed vertical

  10. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Modeled Vs. Measured Direct-Normal Solar Irradiance Submitter: Schwartz, S. E., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Halthore R. N., Schwartz, S. E., Michalsky, J. J., Anderson, G. P., Ferrare R. A., Holben B. N., and ten Brink H. M. 1997. "Comparison of Model Estimated and Measured Direct-Normal Solar Irradiance," J. Geophys. Res. 102(D25): 29991-30002 Figure 1 Figure 2 Figure 3 Figure 4

  11. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Parameterization of Riming Intensity and Its Impact on Ice Fall Speed Using ARM Data Download a printable PDF Submitter: Lin, Y., Geophysical Fluid Dynamics Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Lin Y, DJ Leo, and BA Colle. 2011. "Parameterization of riming intensity and its impact on ice fall speed using ARM data." Monthly Weather Review, 139(3), 10.1175/2010MWR3299.1. (a)

  12. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Preferred States of the Winter Arctic Atmosphere, Surface, and Sub-Surface Download a printable PDF Submitter: Del Genio, A. D., National Aeronautics and Space Administration Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: Stramler K, AD Del Genio, and WB Rossow. 2011. "Synoptically driven Arctic winter states." Journal of Climate, 24(6), doi:10.1175/2010JCLI3817.1. SHEBA winter hourly surface net (down - up) longwave radiation flux versus

  13. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Critical Evaluation of the ICARUS Portion of the ISCCP Simulator Using ARM Data Download a printable PDF Submitter: Mace, G., University of Utah Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Mace GG, S Houser, S Benson, SA Klein, and QL Min. 2011. "Critical evaluation of the ISCCP simulator using ground-based remote sensing data." Journal of Climate, 24(6), doi:10.1175/2010JCLI3517.1. Figure 1.

  14. Research Highlight

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    Ground-Based Cloud Measurements Used to Evaluate the Simulation of Arctic Clouds in CCSM4 Download a printable PDF Submitter: de Boer, G., University of Colorado, Boulder/CIRES Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: de Boer G, W Chapman, JE Kay, B Medeiros, MD Shupe, S Vavrus, and JE Walsh. 2011. "A characterization of the present-day Arctic atmosphere in CCSM4." Journal of Climate, 25(8),

  15. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AERI Instrument Status and Analysis Results: 1998 Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Smith, W.L, W.F. Feltz, R.O. Knuteson, H.E. Revercomb, H.B. Howell, and H.M. Woolf, 1999: "The retrieval of planetary boundary layer structure using ground-based infrared spectral radiance measurements." J. Atmos. Oceanic Technol., 16(3): 323-333.> Feltz, W. F., W.L. Smith, R.O.

  16. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Seasonal and Interannual Variability in 13C of Ecosystem Carbon Fluxes from 2002-2009 Submitter: Torn, M. S., Lawrence Berkeley National Laboratory Area of Research: Surface Properties Working Group(s): Aerosol Life Cycle Journal Reference: Torn MS, SC Biraud, CJ Still, WJ Riley, and JA Berry. 2011. "Seasonal and inter-annual variability in δ13C of net ecosystem carbon exchanges from 2002-2009 in the U.S. Southern Great Plains." Tellus, 63(2), 10.1111/j.1600-0889.2010.00519.x. Time

  17. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AERI-ER at the SHEBA Ice Station: Far Infrared H2O Continuum Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Tobin, D.C., F.A. Best, P.D. Brown, S.A. Clough, R.G. Dedecker, R.G. Ellingson, R.K. Garcia, H.B. Howell, R.O. Knuteson, E.J. Mlawer, H.E. Revercomb, J.F. Short, P.F.W. van Delst, and V.P. Walden, 1999. "Downwelling spectral radiance observations at the SHEBA ice station:

  18. Research Highlight

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    Case Closed on Nauru Island Effect Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Long CN and SA McFarlane. 2012. "Quantification of the impact of Nauru Island on ARM measurements." Journal of Applied Meteorology and Climatology, 51(3), 628-636. McFarlane SA, CN Long, and DM Flynn. 2005. "Impact of island-induced clouds on surface

  19. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Performance of Longwave Radiative Transfer Models for 3D Cloud Fields Download a printable PDF Submitter: Kablick III, G. P., University of Maryland Ellingson, R. G., Florida State University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Kablick III GP, RG Ellingson, EE Takara, and J Gu. 2011. "Longwave 3D benchmarks for inhomogeneous clouds and comparisons with approximate methods." Journal of Climate, 24, doi:10.1175/2010JCLI3752.1. The

  20. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Icy Business of Calculating Cirrus Clouds Submitter: Somerville, R. C., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: McFarquhar, G.M., S. Iacobellis, and R.C.J. Somerville, 2003: "SCM simulations of tropical ice clouds using observationally based parameterizations of microphysics," J. Climate 16(11):1643-1664. Iacobellis, S.F., G.M. McFarquhar, D.L. Mitchell, and

  1. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Modeling Cloud Forcing in the Tropical West Pacific Submitter: Kiehl, J., NCAR Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Petch, J.C., and J.T. Kiehl, 1997: "Investigating Cloud Radiative Forcing in the Tropical West Pacific Using a Single Column Model." In Proceedings from the Seventh ARM Science Team Meeting, U.S. Department of Energy, Washington, D.C. Figure 1 Figure 2 Figure 3 Figure 4 Figure

  2. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Small Irregular Ice Crystals in Tropical Cirrus Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Nousiainen, T. P., University of Helsinki Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Nousiainen T, H Lindqvist, GM McFarquhar, and J Um. 2011. "Small irregular ice crystals in tropical cirrus." Journal of the Atmospheric Sciences, 68(11), doi:10.1175/2011JAS3733.1. Examples of small

  3. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Probing the Birth of New Particles Download a printable PDF Submitter: Wang, J., Brookhaven National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Chen M, M Titcombe, J Jiang, C Jen, C Kuang, ML Fischer, FL Eisele, I Siepmann, DR Hanson, J Zhao, and PH McMurry. 2012. "Acid-base chemical reaction model for nucleation rates in the polluted atmospheric boundary layer." Proceedings of the National Academy of Sciences, 109(46),

  4. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mid-Level Cloud Formation at the ARM Darwin Site Download a printable PDF Submitter: Riihimaki, L., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Riihimaki LD, SA McFarlane, and JM Comstock. 2012. "Climatology and formation of tropical midlevel clouds at the Darwin ARM site." Journal of Climate, 25(19), doi:10.1175/JCLI-D-11-00599.1. Hovering between the large anvils from storm-forming

  5. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    More Like Shades of Gray: the Effects of Black Carbon in Aerosols Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Cappa CD, TB Onasch, P Massoli, DR Worsnop, TS Bates, ES Cross, P Davidovits, J Hakala, KL Hayden, BT Jobson, KR Kolesar, DA Lack, BM Lerner, SM Li, D Mellon, I Nuaaman, JS Olfert, T Petaja, PK Quinn, C Song, R Subramanian, EJ Williams, and RA Zaveri. 2012.

  6. Research Highlight

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mingling in the Sky-A View from the Earth Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Madhavan BL, Y He, Y Wu, B Gross, F Moshary, and S Ahmed. 2012. "Development of a ground based remote sensing approach for direct evaluation of aerosol-cloud interaction." Atmosphere, 3(4), doi:10.3390/atmos3040468. Two different types of

  7. Research | Energy Frontier Research Centers

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Home Below are images. Click on the image to see a larger view. Nanostructural Bulk Chalcogenides TEM image High resolution TEM image showing spinodally decomposed regions in PbTe-16%PbS. TEM image TEM images showing dispersed nanoparticles in samples of: (A) PbTe-Sb(2%) (B) PbTe-Sb(4%) (C) PbTe-Sb(8%) and (D) PbTe-Sb(16%). A pulsed-laser enhanced 3-D LEAP tomograph involves replacing electric pulses with picosecond laser pulses, indicated by incident red wave in left-hand figure.

  8. Staff Research Physicist (Experimental Research, FLARE) | Princeton...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Experimental Research, FLARE) Department: Research Staff: RM 02 Requisition Number: 1500503 The Princeton Plasma Physics Laboratory seeks to fill a staff research physicist...

  9. Research Affiliate Program | Photosynthetic Antenna Research...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Affiliate Program Research Affiliate Program Research Affiliates are collaborators who are not current PARC principal investigators andor who are from academic or...

  10. Research Affiliates | Photosynthetic Antenna Research Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Affiliates Research Affiliates Yan Mei Wang Yan Mei Wang Research Affiliate Read more about Yan Mei Wang Rienk van Grondelle Rienk van Grondelle Research Affiliate Read more about...

  11. Research Form | Photosynthetic Antenna Research Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Form Research Form Students may arrange to receive credit andor choose to receive points toward the PARCI-CARES certificate through research in a faculty-supervised...

  12. Sandia National Labs: PCNSC: Research: Research Briefs

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    Research Briefs The annually published Physical, Chemical, and Nano Sciences Center Research Briefs highlights recent accomplishments supporting our missions. Our research focuses...

  13. Advanced Scientific Computing Research

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    Advanced Scientific Computing Research Advanced Scientific Computing Research Discovering, ... The DOE Office of Science's Advanced Scientific Computing Research (ASCR) program ...

  14. Research Groups - Cyclotron Institute

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    Research Groups Research Group Homepages: Nuclear Theory Group Dr. Sherry Yennello's Research Group Dr. Dan Melconian's Research Group Dr. Cody Folden's Group...

  15. ARM - Research Themes

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govScienceResearch Themes Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) Earth System Modeling Regional & Global...

  16. Air pollution and childhood respiratory health: Exposure to sulfate and ozone in 10 Canadian Rural Communities

    SciTech Connect (OSTI)

    Stern, B.R.; Raizenne, M.E.; Burnett, R.T.; Jones, L.; Kearney, J.; Franklin, C.A. )

    1994-08-01

    This study was designed to examine differences in the respiratory health status of preadolescent school children, aged 7-11 years, who resided in 10 rural Canadian communities in areas of moderate and low exposure to regional sulfate and ozone pollution. Five of the communities were located in central Saskatchewan, a low-exposure region, and five were located in southwestern Ontario, an area with moderately elevated exposures resulting from long-range atmospheric transport of polluted air masses. In this cross-sectional study, the child's respiratory symptoms and illness history were evaluated using a parent-completed questionnaire, administered in September 1985. Respiratory function was assessed once for each child in the schools between October 1985 and March 1986, by the measurement of pulmonary function for forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV[sub 1.0]), peak expiratory flow rate (PEFR), mean forced expiratory flow rate during the middle half of the FVC curve (FEF[sub 25-75]), and maximal expiratory flow at 50% of the expired vital capacity (V[sub 50]max). After controlling for the effects of age, sex, parental smoking, parental education and gas cooking, no significant regional differences were observed in rates of chronic cough or phlegm, persistent wheeze, current asthma, bronchitis in the past year, or any chest illness that kept the child at home for 3 or more consecutive days during the previous year. Children living in southwestern Ontario had statistically significant (P < 0.01) mean decrements of 1.7% in FVC and 1.3% in FEV[sub 1.0] compared with Saskatchewan children, after adjusting for age, sex, weight, standing height, parental smoking, and gas cooking. There were no statistically significant regional differences in the pulmonary flow parameters (P > 0.05). 54 refs., 1 fig., 7 tabs.

  17. Occupational exposures and chronic respiratory symptoms. A population-based study

    SciTech Connect (OSTI)

    Korn, R.J.; Dockery, D.W.; Speizer, F.E.; Ware, J.H.; Ferris, B.G. Jr.

    1987-08-01

    Data from a random sample of 8515 white adults residing in 6 cities in the eastern and midwestern United States were used to examine the relationships between occupational exposures to dust or to gases and fumes and chronic respiratory symptoms; 31% of the population had a history of occupational dust exposure and 30% reported exposure to gas or fumes. After adjusting for smoking habits, age, gender, and city of residence, subjects with either occupational exposure had significantly elevated prevalences of chronic cough, chronic phlegm, persistent wheeze, and breathlessness. The adjusted relative odds of chronic respiratory symptoms for subjects exposed to dust ranged from 1.32 to 1.60. Subjects with gas or fume exposure had relative odds of symptoms between 1.27 and 1.43 when compared with unexposed subjects. Occupational dust exposure was associated with a higher prevalence of chronic obstructive pulmonary disease as defined by an FEV1/FVC ratio of less than 0.6, when comparing exposed and unexposed participants (OR = 1.53, 95% Cl = 1.17-2.08). Gas or fume exposure was associated with a small, but not significant, increase in COPD prevalence. Significant trends were noted for wheeze and phlegm with increasing duration of dust exposure. Although 36% of exposed subjects reported exposure to both dust and fumes, there was no evidence of a multiplicative interaction between the effects of the individual exposures. Smoking was a significant independent predictor of symptoms, but did not appear to modify the effect of dust or fumes on symptom reporting. These data, obtained in random samples of general populations, demonstrate that chronic respiratory symptoms and disease can be independently associated with occupational exposures.

  18. Occupational exposures and chronic respiratory symptoms: a population-based study

    SciTech Connect (OSTI)

    Korn, R.J.; Dockery, D.W.; Speizer, F.E.; Ware, J.H.; Ferris, B.G.

    1987-01-01

    Data from a random sample of 8515 white adults residing in six cities in the eastern and midwestern United States were used to examine the relationships between occupational exposures to dust or to gases and fumes and chronic respiratory symptoms. 31% of the population had a history of occupational dust exposure and 30% reported exposure to gas or to fumes. After adjusting for smoking habits, age, gender, and city of residence, subjects with either occupational exposure had significantly elevated prevalence of chronic cough, chronic phlegm, persistent wheeze, and breathlessness. The adjusted relative odds of chronic respiratory symptoms for subjects exposed to dust ranged from 1.32 to 1.60. Subjects with gas or fume exposure had relative odds of symptoms between 1.27 and 1.43 when compared to unexposed subjects. Occupational dust exposure was associated with a higher prevalence of chronic obstructive pulmonary disease (COPD) as defined by an FEV1/FVC ratio of less than 0.6, when comparing exposed and unexposed participants (OR=1.53, 95% CI=1.17-2.08). Gas or fume exposure was associated with a small, but not significant, increase in COPD prevalence. Significant trends were noted for wheeze and phlegm with increasing duration of dust exposure. Although 36% of exposed subjects reported exposure to both dust and fumes, there was no evidence of a multiplicative interaction between the effects of the individual exposures. Smoking was a significant independent predictor of symptoms, but did not appear to modify the effect of dust or fumes on symptom reporting. These data, obtained in random samples of general populations, demonstrate that chronic respiratory disease can be independently associated with occupational exposures.

  19. Agricultural Research Service (ARS) Research Participation Program -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Managed by ORAU Agricultural Research Service (ARS) Research Participation Program Home About USDA ARS About ORISE Current Research Opportunities Site Map Contact ORISE Facebook Twitter Applicants Welcome to the Agricultural Research Service (ARS) Research Participation Program The Agricultural Research Service (ARS) Research Participation Program will serve as the next step in the educational and professional development of scientists and engineers interested in agricultural related

  20. Sandia National Laboratories: Research: Research Foundations

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    Research Foundations Bioscience Computing and Information Science Engineering Science Geoscience Materials Science Nanodevices and Microsystems Radiation Effects and High Energy Density Science Research Research Foundations Leadership in innovation Integrating unique resources and technical excellence to benefit our nation. Certain research areas are considered key to the success of Sandia's national security programs. These areas - known as research foundations - underpin Sandia's innovations