Full Name Special Sensor Microwave Water Vapor Sounder Status No longer operational
Instrument Agencies NOAA, DoD (USA) Maturity High Heritage - Operational
Instrument Type Atmospheric temperature and humidity sounders Geometry Conical scanning
Instrument Technology Absorption-band MW radiometer/spectrometer Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications Water vapour profiler.
Resolution Summary Approx 48 km
Swath Summary 1500 km
Accuracy Summary
Waveband Summary Microwave: 91.6, 150, 183.31 (3 channels) (Total 5 channels)
MW (~0.1 cm - ~100 cm)
Instrument Measurements
Measurements Overview
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, TC)
Cloud particle properties and profileCloud liquid water (TC)
Liquid water and precipitation ratePrecipitation intensity at the surface (liquid or solid)
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Cloud Properties click here click here search ECV Inventory records
Precipitation click here click here search ECV Inventory records
Water Vapour (upper air) click here click here search ECV Inventory records
Instrument Missions
DMSP F-11 - Defense Meteorological Satellite Program F-11 (1991 - 2000)
DMSP F-12 - Defense Meteorological Satellite Program F-12 (1994 - 2004)
DMSP F-14 - Defense Meteorological Satellite Program F-14 (1997 - 2020)
DMSP F-15 - Defense Meteorological Satellite Program F-15 (1999 - 2019)