BackForwardInstrument:  MIVZA 

Instrument details
Acronym MIVZA
Full name Microwave humidity sounder
Purpose To provide an estimate of the total humidity in the atmosphere
Short description 3-frequency / 5-channel MW radiometer. Frequencies ranging from 20 to 94 GHz, dual polarisation for two frequencies
Background There is no evidence that the instrument has been actually flown
Scanning Technique Conical, swath 1500 km
Resolution 25 km at 94 GHz, 100 km at 20 GHz
Coverage / Cycle
Mass Power Data Rate


Providing Agency Roscosmos
Instrument Maturity Flown on operational programme
Utilization Period: 2002 to 2006
Last update: 2017-03-29
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

Instrument classification
  • Earth observation instrument
  • Passive microwave radiometer
  • Conical scanning microwave radiometer
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Integrated Water Vapour (IWV)
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Cloud liquid water (CLW)3 - highNo specific limitation.MW channels around 37 and 90 GHz
Cloud liquid water (CLW) total column3 - highNo specific limitation.MW channels around 37 and 90 GHz
Integrated Water Vapour (IWV)*3 - highOver sea only.MW channel(s) in the water vapour band around 23 GHz
Wind speed (near surface)5 - marginalOver sea only.MW channels around 37 GHz