U.S. Department of EnergyOffice of Scientific and Technical Information
EPCAPE-PT-LANL Measurements: Photoacoustic Extinctometer
Abstract
Coastal cities offer a unique environment for studying aerosol-cloud interactions and the effects of urban emissions on cloud properties. As part of the Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE), the Partitioning Thrust by Los Alamos National Laboratory (EPCAPE-PT-LANL) was conducted. Our campaign focused on measuring the optical and chemical properties of aerosols and their interactions within marine stratocumulus clouds in La Jolla, California. EPCAPE-PT-LANL enhances the primary goals of EPCAPE through innovative observations of vapor-phase transitions between aerosols and cloud droplets, the impact of black carbon on aerosol-cloud dynamics, and the effects of cloud processing on aerosol optical properties. Instrument: Photoacoustic Extinctiometer at 870 nm (Droplet Measurement Technology)Header: - AbsorptionNoise_870nm[1/Mm]: Noise level associated with the absorption measurement at 870 nm, expressed in inverse megameters (Mm⁻¹). - Absorption_870nm[1/Mm]: Absorption coefficient of aerosols measured at 870 nm, expressed in inverse megameters (Mm⁻¹). - Extinction_870nm[1/Mm]: Extinction coefficient of aerosols measured at 870 nm, expressing the sum of scattering and absorption by aerosols, in inverse megameters (Mm⁻¹). - Scattering_870nm[1/Mm]: Scattering coefficient of aerosols measured at 870 nm, expressed in inverse megameters (Mm⁻¹).- BackgroundAbsorption_870nm[1/Mm]: Background absorption measurement at 870 nm, used to correct the primary absorption data, expressed in inverse megameters (Mm⁻¹). - BackgroundScattering_870nm[1/Mm]: Background scattering measurement at 870 nm,more »
- Publication Date:
- Other Number(s):
- ARM0854
- DOE Contract Number:
- AC05-00OR22725
- Research Org.:
- Atmospheric Radiation Measurement (ARM) Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); ARM Data Center, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Collaborations:
- PNNL, BNL, ANL, ORNL
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Light Extinctiometer
- OSTI Identifier:
- 2382705
- DOI:
- https://doi.org/10.5439/2382705
Citation Formats
Gorkowski, Kyle, Lee, James, Shawon, Abu Sayeed Md, Farley, Ryan, Franco, Nevil, Benedict, Katherine, Dueby, Manvendra, and Aiken, Allison. EPCAPE-PT-LANL Measurements: Photoacoustic Extinctometer. United States: N. p., 2024.
Web. doi:10.5439/2382705.
Gorkowski, Kyle, Lee, James, Shawon, Abu Sayeed Md, Farley, Ryan, Franco, Nevil, Benedict, Katherine, Dueby, Manvendra, & Aiken, Allison. EPCAPE-PT-LANL Measurements: Photoacoustic Extinctometer. United States. doi:https://doi.org/10.5439/2382705
Gorkowski, Kyle, Lee, James, Shawon, Abu Sayeed Md, Farley, Ryan, Franco, Nevil, Benedict, Katherine, Dueby, Manvendra, and Aiken, Allison. 2024.
"EPCAPE-PT-LANL Measurements: Photoacoustic Extinctometer". United States. doi:https://doi.org/10.5439/2382705. https://www.osti.gov/servlets/purl/2382705. Pub date:Mon Jul 01 00:00:00 EDT 2024
@article{osti_2382705,
title = {EPCAPE-PT-LANL Measurements: Photoacoustic Extinctometer},
author = {Gorkowski, Kyle and Lee, James and Shawon, Abu Sayeed Md and Farley, Ryan and Franco, Nevil and Benedict, Katherine and Dueby, Manvendra and Aiken, Allison},
abstractNote = {Coastal cities offer a unique environment for studying aerosol-cloud interactions and the effects of urban emissions on cloud properties. As part of the Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE), the Partitioning Thrust by Los Alamos National Laboratory (EPCAPE-PT-LANL) was conducted. Our campaign focused on measuring the optical and chemical properties of aerosols and their interactions within marine stratocumulus clouds in La Jolla, California. EPCAPE-PT-LANL enhances the primary goals of EPCAPE through innovative observations of vapor-phase transitions between aerosols and cloud droplets, the impact of black carbon on aerosol-cloud dynamics, and the effects of cloud processing on aerosol optical properties. Instrument: Photoacoustic Extinctiometer at 870 nm (Droplet Measurement Technology)Header: - AbsorptionNoise_870nm[1/Mm]: Noise level associated with the absorption measurement at 870 nm, expressed in inverse megameters (Mm⁻¹). - Absorption_870nm[1/Mm]: Absorption coefficient of aerosols measured at 870 nm, expressed in inverse megameters (Mm⁻¹). - Extinction_870nm[1/Mm]: Extinction coefficient of aerosols measured at 870 nm, expressing the sum of scattering and absorption by aerosols, in inverse megameters (Mm⁻¹). - Scattering_870nm[1/Mm]: Scattering coefficient of aerosols measured at 870 nm, expressed in inverse megameters (Mm⁻¹).- BackgroundAbsorption_870nm[1/Mm]: Background absorption measurement at 870 nm, used to correct the primary absorption data, expressed in inverse megameters (Mm⁻¹). - BackgroundScattering_870nm[1/Mm]: Background scattering measurement at 870 nm, used to correct the primary scattering data, expressed in inverse megameters (Mm⁻¹). - Temperature[C]: The ambient temperature at the time of the measurement, expressed in degrees Celsius. - RelativeHumidity[%]: The relative humidity at the time of the measurement, expressed as a percentage. - CVI_Flag[bool]: A boolean flag indicating whether the Counterflow Virtual Impactor (CVI) was active (true) or inactive (false) during the measurement },
doi = {10.5439/2382705},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 01 00:00:00 EDT 2024},
month = {Mon Jul 01 00:00:00 EDT 2024}
}