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Title: BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
European Commission (EC); National Aeronautic and Space Administration (NASA); USDOE Office of Science - Office of Biological and Environmental Research - Atmospheric Radiation Measurement (ARM) Program
OSTI Identifier:
1389811
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Bulletin of the American Meteorological Society; Journal Volume: 97; Journal Issue: 10
Country of Publication:
United States
Language:
English

Citation Formats

Petäjä, Tuukka, O’Connor, Ewan J., Moisseev, Dmitri, Sinclair, Victoria A., Manninen, Antti J., Väänänen, Riikka, von Lerber, Annakaisa, Thornton, Joel A., Nicoll, Keri, Petersen, Walt, Chandrasekar, V., Smith, James N., Winkler, Paul M., Krüger, Olaf, Hakola, Hannele, Timonen, Hilkka, Brus, David, Laurila, Tuomas, Asmi, Eija, Riekkola, Marja-Liisa, Mona, Lucia, Massoli, Paola, Engelmann, Ronny, Komppula, Mika, Wang, Jian, Kuang, Chongai, Bäck, Jaana, Virtanen, Annele, Levula, Janne, Ritsche, Michael, and Hickmon, Nicki. BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate. United States: N. p., 2016. Web. doi:10.1175/BAMS-D-14-00199.1.
Petäjä, Tuukka, O’Connor, Ewan J., Moisseev, Dmitri, Sinclair, Victoria A., Manninen, Antti J., Väänänen, Riikka, von Lerber, Annakaisa, Thornton, Joel A., Nicoll, Keri, Petersen, Walt, Chandrasekar, V., Smith, James N., Winkler, Paul M., Krüger, Olaf, Hakola, Hannele, Timonen, Hilkka, Brus, David, Laurila, Tuomas, Asmi, Eija, Riekkola, Marja-Liisa, Mona, Lucia, Massoli, Paola, Engelmann, Ronny, Komppula, Mika, Wang, Jian, Kuang, Chongai, Bäck, Jaana, Virtanen, Annele, Levula, Janne, Ritsche, Michael, & Hickmon, Nicki. BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate. United States. doi:10.1175/BAMS-D-14-00199.1.
Petäjä, Tuukka, O’Connor, Ewan J., Moisseev, Dmitri, Sinclair, Victoria A., Manninen, Antti J., Väänänen, Riikka, von Lerber, Annakaisa, Thornton, Joel A., Nicoll, Keri, Petersen, Walt, Chandrasekar, V., Smith, James N., Winkler, Paul M., Krüger, Olaf, Hakola, Hannele, Timonen, Hilkka, Brus, David, Laurila, Tuomas, Asmi, Eija, Riekkola, Marja-Liisa, Mona, Lucia, Massoli, Paola, Engelmann, Ronny, Komppula, Mika, Wang, Jian, Kuang, Chongai, Bäck, Jaana, Virtanen, Annele, Levula, Janne, Ritsche, Michael, and Hickmon, Nicki. 2016. "BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate". United States. doi:10.1175/BAMS-D-14-00199.1.
@article{osti_1389811,
title = {BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate},
author = {Petäjä, Tuukka and O’Connor, Ewan J. and Moisseev, Dmitri and Sinclair, Victoria A. and Manninen, Antti J. and Väänänen, Riikka and von Lerber, Annakaisa and Thornton, Joel A. and Nicoll, Keri and Petersen, Walt and Chandrasekar, V. and Smith, James N. and Winkler, Paul M. and Krüger, Olaf and Hakola, Hannele and Timonen, Hilkka and Brus, David and Laurila, Tuomas and Asmi, Eija and Riekkola, Marja-Liisa and Mona, Lucia and Massoli, Paola and Engelmann, Ronny and Komppula, Mika and Wang, Jian and Kuang, Chongai and Bäck, Jaana and Virtanen, Annele and Levula, Janne and Ritsche, Michael and Hickmon, Nicki},
abstractNote = {},
doi = {10.1175/BAMS-D-14-00199.1},
journal = {Bulletin of the American Meteorological Society},
number = 10,
volume = 97,
place = {United States},
year = 2016,
month =
}
  • Atmospheric aerosol particles impact human health in urban environments, while on regional and global scales they can affect climate patterns, the hydrological cycle, and the intensity of radiation that reaches the Earth’s surface. In spite of recent advances in the understanding of aerosol formation processes and the links between aerosol dynamics and biosphere-atmosphere-climate interactions, great challenges remain in the analysis of related processes on a global scale. Boreal forests, situated in a circumpolar belt in the Northern latitudes throughout the United States, Canada, Russia, and Scandinavia, are, of all biomes, among the most active areas of atmospheric aerosol formation. Themore » formation of aerosol particles and their growth to cloud condensation nuclei sizes in these areas are associated with biogenic volatile organic emissions (BVOC) from vegetation and soil.« less
  • Large-scale properties of clouds such as lifetime, optical thickness, and precipitation are all dependent on small-scale cloud microphysical processes. Such processes determine when droplets will grow or shrink, their size, and the number of cloud droplets. Although our understanding of cloud microphysics has vastly improved over the past several decades with the development of remote sensing methods such as lidar and radar, there remain a number of processes that are not well understood, such as the effect of electrical charge on cloud microphysics. To understand the various processes and feedback mechanisms, high-vertical–resolution observations are required. Radiosondes provide an ideal platformmore » for providing routine vertical profiles of in situ measurements at any location (with a vertical resolution of a few meters). Modified meteorological radiosondes have been extensively developed at the University of Reading for measuring cloud properties, to allow measurements beyond the traditional thermodynamic quantities (pressure, temperature and relative humidity) to be obtained cost-effectively. This project aims to investigate a number of cloud processes in which in situ cloud observations from these modified radiosondes can provide information either complementary to or not obtainable by lidar/radar systems. During two intensive operational periods (IOPs) in May and August 2014 during deployment to Hyytiälä, Finland, the Atmospheric Radiation Measurement (ARM) Climate Research Facility’s Second ARM Mobile Facility (AMF2) launched a total of 24 instrumented radiosondes through a number of different cloud types ranging from low-level stratiform cloud to cumulonimbus. Twelve balloon flights of an accelerometer turbulence sensor were made, which detected significant turbulence on eleven of these flights. Most of the turbulent episodes encountered were due to convective processes, but several were associated with the transition from troposphere to stratosphere at the tropopause. Similarities in the location of turbulent layers were generally found between the balloon turbulence sensor and the Ka-band radar, but with discrepancies between the orders of magnitude of turbulence detected. The reason for these discrepancies is the subject of future work.« less
  • Atmospheric aerosol particles impact human health in urban environments, while on regional and global scales they can affect climate patterns, the hydrological cycle, and the intensity of radiation that reaches the Earth’s surface. In spite of recent advances in the understanding of aerosol formation processes and the links between aerosol dynamics and biosphere-atmosphere-climate interactions, great challenges remain in the analysis of related processes on a global scale. Boreal forests, situated in a circumpolar belt in the northern latitudes throughout the United States, Canada, Russia and Scandinavia, are among the most active areas of atmospheric aerosol formation among all biomes. Themore » formation of aerosol particles and their growth to the sizes of cloud condensation nuclei in these areas are associated with biogenic volatile organic emissions from vegetation and soil.« less
  • “Biogenic Aerosols - Effects on Clouds and Climate (BAECC)”, featured the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) Program’s 2nd Mobile Facility (AMF2) in Hyytiälä, Finland. It operated for an 8-month intensive measurement campaign from February to September 2014. The main research goal was to understand the role of biogenic aerosols in cloud formation. One of the reasons to perform BAECC study in Hyytiälä was the fact that it hosts SMEAR-II (Station for Measuring Forest Ecosystem-Atmosphere Relations), which is one of the world’s most comprehensive surface in-situ observation sites in a boreal forest environment. The station has been measuringmore » atmospheric aerosols, biogenic emissions and an extensive suite of parameters relevant to atmosphere-biosphere interactions continuously since 1996. The BAECC enables combining vertical profiles from AMF2 with surface-based in-situ SMEAR-II observations and allows the processes at the surface to be directly related to processes occurring throughout the entire tropospheric column. With the inclusion of extensive surface precipitation measurements, and intensive observation periods involving aircraft flights and novel radiosonde launches, the complementary observations of AMF2 and SMEAR-II provide a unique opportunity for investigating aerosol-cloud interactions, and cloud-to-precipitation processes. The BAECC dataset will initiate new opportunities for evaluating and improving models of aerosol sources and transport, cloud microphysical processes, and boundary-layer structures.« less
  • This report describes the data collected by the Three-Waveband Spectrally-agile Technique (TWST) sensor deployed at Hyytiälä, Finland from 16 July to 31 August 2014 as a guest on the Biogenic Aerosols Effects on Climate and Clouds (BAECC) campaign. These data are currently available from the Atmospheric Radiation Measurement (ARM) Data Archive website and consists of Cloud Optical Depth (COD) measurements for the clouds directly overhead approximately every second (with some dropouts described below) during the daylight periods. A good range of cloud conditions were observed from clear sky to heavy rainfall.