CEOS EO HANDBOOK – INSTRUMENT SUMMARY - MLS -
Full Name Microwave Limb Sounder (UARS) Status No longer operational
Instrument Agencies NASA Maturity
Instrument Type Atmospheric temperature and humidity sounders and Atmospheric chemistry Geometry Limb-scanning
Instrument Technology Limb-scanning MW spectrometer Sampling Sounding
Data Access Data Format
Measurements and Applications Data on emissions of chlorine monoxide, water vapour and ozone. Data also used for determination of atmospheric pressure and temperatures as a function of altitude from observations of molecular oxygen emissions.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary
FIR (~15.0 µm - ~0.1 cm)
MW (~0.1 cm - ~100 cm)
Instrument Measurements
Measurements Overview
CategoryParameter
Atmospheric Humidity FieldsAtmospheric specific humidity (LT)
Atmospheric Temperature FieldsAtmospheric temperature (LT)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)CH4 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Carbon Dioxide, Methane and other Greenhouse gases click here click here search ECV Inventory records
Ozone click here click here GOZCARDS Merged Ozone 1 month L3 10 degr...
GOZCARDS Merged Ozone 1 month L3 10 degr...
Temperature (upper-air) click here click here search ECV Inventory records
Water Vapour (upper air) click here click here GOZCARDS Merged Water Vapor 1 month L3 1...
Instrument Missions
UARS - Upper Atmosphere Research Satellite (1991 - 2005)