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Instrument

GT-CIMS
Georgia Institute of Technology Chemical Ionization Mass Spectrometer

The Georgia Institute of Technology Chemical Ionization Mass Spectrometer (GT-CIMS) is an in situ airborne spectrometer. It uses a lower-pressure flow tube reactor to measure reactive nitrogen species such as nitric acid and peroxyacetyl nitrate (PAN) in the lower atmosphere. GT-CIMS has a typical temporal resolution of 1 second and a detection limit of 10 pptv.

Image of the GT-CIMS instrument
NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Spectrometer/Radiometer
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Hydrogen Chloride
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Sulfur Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Methanol
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Peroxyacyl Nitrate
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Acid
Troposphere
1-3 s
Point
N/A
External Linkhttps://doi.org/10.1002/2016JD025561

Instrument Operation

SEAC4RS

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
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1 Deployment
· 20 Data Products
DC3

Deep Convective Clouds & Chemistry

2012
Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama
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1 Deployment
· 19 Data Products
ARCTAS

Arctic Research of the Composition of the Troposphere from Aircraft and Satellites

2008
Alaska, Western Canada, California
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3 Deployments
· 5 Data Products
The logo for the KORUS-AQ campaign
KORUS-AQ

Korean United States - Air Quality

2016
South Korean peninsula, including surrounding seas
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1 Deployment
· 12 Data Products
The logo for the ATom campaign
ATom

Atmospheric Tomography Mission

2016—2018
Western Arctic, South Pacific, Atlantic Ocean, Greenland, Central North America
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4 Deployments
· 32 Data Products
The logo for the FIREX-AQ campaign
FIREX-AQ

Fire Influence on Regional to Global Environments and Air Quality

2019
Northwestern and Southeastern US
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1 Deployment
· 26 Data Products
INTEX-NA

Intercontinental Chemical Transport Experiment - North America

2004—2006
North America, Gulf of Mexico, North Pacific Ocean, North Atlantic Ocean
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2 Deployments
· 21 Data Products
ASIA-AQ

Airborne and Satellite Investigation of Asian Air Quality

2024
East and Southeast Asia, Philippines, South Korea, Thailand
Ongoing
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1 Deployment
· 0 Data Products
The logo for the ACCLIP Campaign
ACCLIP

Asian Summer Monsoon Chemical & Climate Impact Project

2022
West Pacific, South Korea
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1 Deployment
· 8 Data Products
DC3

Deep Convective Clouds & Chemistry

2012
Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama
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1 Deployment
· 19 Data Products

Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns
CAMPAIGNS
Platforms
PLATFORMS
Douglas DC-8
Douglas DC-8
Douglas DC-8
Douglas DC-8
External Link10.3334/ORNLDAAC/1581
Douglas DC-8
External Link10.3334/ORNLDAAC/1715
Douglas DC-8
Douglas DC-8
Gulfstream-V
Douglas DC-8