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INSTRUMENTS

The Earth's atmosphere mainly consists of nitrogen (78%) and oxygen (21%). The remaining atmospheric gases (~1%) in the atmosphere are known as trace gases. The most important trace gases are water vapor, carbon mono-oxide, carbon dioxide, methane, nitrous oxide, nitric oxide, and ozone. These gases are referred as greenhouse gases since they trap radiation and heat the atmosphere. Some other trace gases such as SO2 are manmade and produced by combustion of fossil fuels (mainly coal and oil) and smelting of ores and some SO2 are from natural volcanic eruptions.Besides these gases there are some other man-made traces gases such as chlorofluorocarbons (CFCs) that destroy the ozone layer (a shield against the UV radiation).

  Trace Gases Sensors
Oxygen Compounds Ozone (O3) OMI, TOMS, SBUV, MLS, HALOE, GOME, SCIAMACHY, ACE-FTS, and More
Nitrogen Compounds Nitric Oxide (NO) HALOE, CLAES, ACE-FTS
Nitrogen Dioxide (NO2) OMI, HIRDLS, TES, LIMS, CLAES, ISAMS, HALOE, ACE-FTS, GOME, SCIAMACHY
Nitrous Oxide (N2O) MLS, HIRDLS, CLAES, ISAMS, ACE-FTS, SCIAMACHY
Dinitrogen Pentaoxide (N2O5) HIRDLS, CLAES , ISAMS, ACE-FTS, MIPAS
Nitric Acid (HNO3) MLS, HIRDLS, TES, CLAES, LIMS, ACE-FTS, MIPAS
Sulfur Compounds Sulfur Dioxide (SO2) OMI, AIRS, SCIAMACHY
Atmospheric Water Vapor Atmospheric Precipitable Water Vapor, Humidity (H2O) MLS, AIRS, MODIS, ACE-FTS, GOME, SCIAMACHY
Carbon and Hydrocarbon Compounds Carbon Monoxide (CO) MLS, TES, AIRS, ISAMS, MOPITT, ACE-FTS, SCIAMACHY
Carbon Dioxide (CO2) AIRS, MOPITT, HALOE, SABER/TIMED, SCIAMACHY
Formaldehyde (HCHO) OMI, GOME,SCIAMACHY
Methane (CH4) AIRS, HIRDLS,TES, CLAES , ISAMS,HALOE, ACE-FTS, MIPAS, SCIAMACHY
Hydrogen Cyanide (HCN) , Methyl Cyanide (CH3CN) MLS, ACE-FTS
Hydrogen Compounds Hydroxyl Radical (OH) , Hydroperoxyl Radical (HO2) MLS, SABER/TIMED
Halons and Halogens Bromine Oxide (BrO) OMI, MLS, GOME, SCIAMACHY
Chlorine Dioxid e (OClO) OMI, SCIAMACHY,
Chlorine Monoxide (ClO) MLS
Chlorine Nitrate (ClONO2) HIRDLS, CLAES, ACE-FTS
Hypochlorous Acid (HOCl), Hydrogen Chloride (HCl) MLS, HIRDLS, HALOE, ACE-FTS
Hydrogen Fluoride (HF) HALOE, ACE-FTS
Chlorofluorocarbons Dichlorofluromethane, CF2Cl2 ( CFC-12 ), Trichlorofluromethane, CFCl 3 ( CFC-11)

HIRDLS, CLAES, ACE-FTS,

SABER/TIMED

 

 

 

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Last updated: May 02, 2013 11:50 AM ET
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