CEOS EO HANDBOOK – INSTRUMENT SUMMARY - Microwave limb sounder (GACM) -
Full Name Microwave limb sounder (GACM) Status No longer considered
Instrument Agencies NASA Maturity High Heritage - Non-Operational
Instrument Type Atmospheric chemistry Geometry Limb-scanning
Instrument Technology Limb-scanning MW spectrometer Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications Limb-viewing measurements of O3, N2O, temperature, water vapour, CO, HNO3, ClO, and volcanic SO2 in the.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary
MW (~0.1 cm - ~100 cm)
Instrument Measurements
Measurements Overview
CategoryParameter
AerosolsAerosol optical depth (column/profile)
Atmospheric Humidity FieldsAtmospheric specific humidity (column/profile)
Atmospheric Temperature FieldsAtmospheric temperature (column/profile)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)CO Mole Fraction
N2O (column/profile)
HNO3 (column/profile)
ClO (column/profile)
SO2 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Aerosols properties click here click here search ECV Inventory records
Ozone click here click here search ECV Inventory records
Precursors (supporting the Aerosol and Ozone ECVs) click here click here search ECV Inventory records
Temperature (upper-air) click here click here search ECV Inventory records
Water Vapour (upper air) click here click here search ECV Inventory records
Instrument Missions
GACM - Global Atmospheric Composition Mission (2030 - 2033)