WMO OSCAR | Details for Instrument SHF

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Instrument: SHF

Instrument details

Acronym	SHF
Full name	Passive MW Radiometer
Purpose	Multi-purpose MW radiometry
Short description	4-frequency / 8-channel MW radiometer: 7.5 GHz, 19.4 GHz, 22.22 GHz and 37.5 GHz, all with dual polarisation
Background	New development
Scanning Technique	Conical scanning, swath 900 km
Resolution	20 km at 37.5 GHz, 100 km at 7.5 GHz
Coverage / Cycle	Global in 1.5 days
Mass		Power	Data Rate

Detailed characteristics

Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Meteor-Priroda (Roscosmos)
- Meteor-P1 (see instrument status) Oct 1974 - Jul 1976
- Meteor-P2 (see instrument status) Aug 1976 - May 1978
- Meteor-P3 (see instrument status) Oct 1977 - Jul 1979
- Meteor-P6 (see instrument status) Oct 1981 - Jul 1983

Instrument classification

WIGOS Subcomponents

Mission objectives

Primary mission objectives

Evaluation of Measurements

Variable	Relevance for measuring this variable	Operational limitations	Explanation
Snow status (wet/dry)	2 - very high	Coarse spatial resolution.	MW channels around 19 and 37 GHz
Snow water equivalent	2 - very high	Coarse spatial resolution.. Ground stations network needed.	MW channels around 19 and 37 GHz
Cloud liquid water (CLW)	3 - high	No specific limitation.	MW channels around 37 GHz
Cloud liquid water (CLW) total column	3 - high	No specific limitation.	MW channels around 37 GHz
Snow cover	3 - high	Coarse spatial resolution.	MW channels around 19 and 37 GHz
Soil moisture at surface	3 - high	Coarse spatial resolution.. Affected by vegetation.	MW channels around 7 GHz
Integrated Water Vapour (IWV)	3 - high	Over sea only.	MW channel(s) in the water vapour band around 23 GHz
Wind speed (near surface)*	3 - high	Over sea only.	MW channels around 7, 19 and 37 GHz
Sea surface temperature*	4 - fair	No specific limitation.	MW channels around 7 GHz
Soil moisture (in the roots region)	4 - fair	Coarse spatial resolution.. Affected by vegetation.	MW channels around 7 GHz. Assimilation process required
Accumulated precipitation	5 - marginal	Poor time sampling.. Time sampling to be interpolated by GEO.	MW channels around 19, 23 and 37 GHz
Land surface temperature	5 - marginal	Coarse spatial resolution.	MW channels around 7 GHz
Precipitation intensity at surface (liquid or solid)	5 - marginal	Inaccurate over land.	MW channels around 19, 23 and 37 GHz