The Whole Air Sampler (WAS) is an airborne in-situ instrument that collects air samples for analyzing trace gases, such as nonmethane hydrocarbons (NMHCs), halocarbons, alkyl nitrates, and various sulfur compounds found in the troposphere. Air samples collected by the WAS are then analyzed using gas chromatography and mass spectrometry to identify the gases present. The WAS collects samples every minute, allowing scientists to get a clear picture of the environment's chemical composition as research aircraft pass through.
Instrument Details
- Sampler
- Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Non-methane Hydrocarbons/volatile Organic CompoundsEarth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Dimethyl SulfideEarth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > HalocarbonsEarth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Carbonyl SulfideEarth Science > Atmosphere > Aerosols > Nitrate ParticlesEarth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace SpeciesEarth Science > Atmosphere > Atmospheric ChemistryEarth Science > Atmosphere > Atmospheric Chemistry > Sulfur CompoundsEarth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And HalogensEarth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds
- Troposphere
- 1 min
- N/A
- N/A
- https://doi.org/10.5194/amt-10-291-2017
Leroy Heidt, Elliot Atlas, Donald R. Blake, Barbara Chisholm
Elliot Atlas, Donald R. Blake
UC Irvine, NCAR, Diamond Systems, National Instruments
Currently unavailable
Currently unavailable
 Campaign Field Sites Stationary 68 Campaigns · 162 Instruments |  Student Airborne Research Program 2009—2030 Southern California, Virginia Ongoing 17 Deployments · 0 Data Products
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 Douglas DC-8 43 Campaigns · 180 Instruments |  Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys 2013 North America including portions of Canada, Mexico and the Gulf of Mexico 1 Deployment · 20 Data Products
Student Airborne Research Program 2009—2030 Southern California, Virginia Ongoing 17 Deployments · 0 Data Products
 Deep Convective Clouds & Chemistry 2012 Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama 1 Deployment · 19 Data Products
 Arctic Research of the Composition of the Troposphere from Aircraft and Satellites 2008 Alaska, Western Canada, California 3 Deployments · 27 Data Products
 Tropical Composition, Cloud and Climate Coupling 2007 Costa Rica, tropical Eastern Pacific 1 Deployment · 1 Data Product
 Korean United States - Air Quality 2016 South Korean peninsula, including surrounding seas 1 Deployment · 12 Data Products
 Atmospheric Tomography Mission 2016—2018 Western Arctic, South Pacific, Atlantic Ocean, Greenland, Central North America 4 Deployments · 41 Data Products
 Fire Influence on Regional to Global Environments and Air Quality 2019 Northwestern and Southeastern US 1 Deployment · 26 Data Products
 Airborne Antarctic Ozone Experiment 1987 Antarctica 1 Deployment · 1 Data Product
 Airborne Arctic Stratospheric Expedition 1988—1992 Arctic 2 Deployments · 2 Data Products
 Atmospheric Emissions and Reactions Observed from Megacities to Marine Areas 2023 Urban regions across the western and eastern United States 1 Deployment · 0 Data Products
 Subsonic Assessment (SASS) Ozone and Nitrogen Oxide Experiment 1997 North Atlantic Ocean, Ireland, Newfoundland, Bangor, Maine, Azores 1 Deployment · 10 Data Products
 Operation IceBridge 2009—2021 Greenland, Antarctica, Alaska, Arctic Sea 37 Deployments · 79 Data Products
 Airborne and Satellite Investigation of Asian Air Quality 2024 East and Southeast Asia, Philippines, South Korea, Thailand Ongoing 1 Deployment · 8 Data Products
MILAGRO Megacity Initiative: Local and Global Research Observations 2006 Mexico City Metropolitan Area 1 Deployment · 0 Data Products
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 Global Hawk 5 Campaigns · 28 Instruments |  Airborne Tropical Tropopause Experiment 2011—2015 California, Guam, Tropics 4 Deployments · 5 Data Products
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 NASA WB-57 16 Campaigns · 80 Instruments |  Volcano-plume Investigation Readiness and Gas-phase and Aerosol Sulfur 2015 Houston, Texas 1 Deployment · 2 Data Products
Tropical Composition, Cloud and Climate Coupling 2007 Costa Rica, tropical Eastern Pacific 1 Deployment · 1 Data Product
 Costa Rica Aura Validation Experiment 2006 Costa Rica 1 Deployment · 0 Data Products
 Pacific Oxidants, Sulfur, Ice, Dehydration, and cONvection 2016 Guam, western Pacific 1 Deployment · 0 Data Products
 Aura Validation Experiment 2004—2005 Houston, Texas, Southern United States, Gulf of Mexico 2 Deployments · 0 Data Products
ACCENT Atmospheric Chemistry of Combustion Emissions Near the Tropopause 1999—2000 Southern United States 3 Deployments · 0 Data Products
 Asian Summer Monsoon Chemical & Climate Impact Project 2022 West Pacific, South Korea 1 Deployment · 8 Data Products
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 NASA Earth Resources-2 Aircraft 63 Campaigns · 107 Instruments |  Dynamics and Chemistry of the Summer Stratosphere 2021—2022 Central United States 3 Deployments · 5 Data Products
 Photochemistry of Ozone Loss in the Arctic Region In Summer 1997 Arctic, Mid-latitudes 3 Deployments · 9 Data Products
Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys 2013 North America including portions of Canada, Mexico and the Gulf of Mexico 1 Deployment · 20 Data Products
Airborne Arctic Stratospheric Expedition 1988—1992 Arctic 2 Deployments · 2 Data Products
 Stratospheric Tracers of Atmospheric Transport 1995—1996 Pacific Ocean, Moffett Field, California, Barbers Point Naval Air Station, Hawaii 6 Deployments · 9 Data Products
Airborne Antarctic Ozone Experiment 1987 Antarctica 1 Deployment · 1 Data Product
 SAGE III Ozone Loss and Validation Experiment 1999—2003 Arctic, Kiruna, Sweden 2 Deployments · 32 Data Products
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 Gulfstream-V 8 Campaigns · 37 Instruments | Asian Summer Monsoon Chemical & Climate Impact Project 2022 West Pacific, South Korea 1 Deployment · 8 Data Products
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 Beechcraft B-200 King Air 32 Campaigns · 73 Instruments | Student Airborne Research Program 2009—2030 Southern California, Virginia Ongoing 17 Deployments · 0 Data Products
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 P-3 Orion 26 Campaigns · 139 Instruments | Student Airborne Research Program 2009—2030 Southern California, Virginia Ongoing 17 Deployments · 0 Data Products
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 Short Brothers C-23 Sherpa 4 Campaigns · 19 Instruments | Student Airborne Research Program 2009—2030 Southern California, Virginia Ongoing 17 Deployments · 0 Data Products
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 DeHavilland DHC-6-300 Twin Otter 20 Campaigns · 73 Instruments | MILAGRO Megacity Initiative: Local and Global Research Observations 2006 Mexico City Metropolitan Area 1 Deployment · 0 Data Products
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 C-130 Hercules 18 Campaigns · 93 Instruments | MILAGRO Megacity Initiative: Local and Global Research Observations 2006 Mexico City Metropolitan Area 1 Deployment · 0 Data Products
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 Gulfstream-159 2 Campaigns · 35 Instruments | MILAGRO Megacity Initiative: Local and Global Research Observations 2006 Mexico City Metropolitan Area 1 Deployment · 0 Data Products
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