Interferometers
type: Concept

IMG
type: Concept
in scheme: instruments
definition: The Interferometric Monitor for Greenhouse Gases (IMG) instrument is provided by the Ministry of International Trade and Industry (MITI) of Japan for the ADvanced Earth Observation Satellite (ADEOS). The IMG is designed to monitor the horizontal distribution of greenhouse effect gases (carbon dioxide, methane, nitrous oxide, etc.) and the vertical distribution of temperature and water vapor. The IMG uses an interferometric spectrometer which scans the spectrum from the middle infrared to thermal infrared (0.3 to 15 microns). A mechanical cryogenic coolant system is used to regulate the temperature of the quantum detectors. An image motion compensation mirror is used to compensate for the satellite orbital motion. Measurements are made in 20 km swaths at 8 km resolution. Additional information available at "http://kuroshio.eorc.nasda.go.jp/ADEOS/Project/Img.html" Group: Instrument_Details Entry_ID: IMG Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Spectrometers/Radiometers Instrument_Subtype: Interferometers Short_Name: IMG Long_Name: Interferometric Monitor for Greenhouse Gases End_Group Group: Associated_Platforms Short_Name: ADEOS-I End_Group End_Group