BackForwardInstrument:  Klimat 

Instrument details
Acronym Klimat
Full name Infrared Imaging Radiometer
Purpose Cloud imagery
Short description 1-channel IR radiometer, 10.5–12.5 ?m, 0.5 K @ 300 K
Background Consolidated technology
Scanning Technique Cross-track, swath 3100 km – Along-track: two 3-km lines/s
Resolution 3.0 km IFOV
Coverage / Cycle Global coverage twice/day
Mass 75 kg Power Data Rate


Providing Agency Roscosmos
Instrument Maturity Flown on operational programme
Utilization Period: 1986 to 2006
Last update: 2013-11-19
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 optical radiometer or spectrometer
  • Moderate resolution optical imager
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Cloud cover
  • Cloud top temperature
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 cover*5 - marginalNo specific limitation.TIR channel(s)
Cloud top temperature*5 - marginalNo specific limitation.TIR window channel(s)
Fire fractional cover5 - marginalCloud sensitive.. Coarse spatial resolution.TIR channels
Fire radiative power5 - marginalCloud sensitive.. Coarse spatial resolution.TIR channels
Fire temperature5 - marginalCloud sensitive.. Coarse spatial resolution.TIR channels
Sea surface temperature5 - marginalCloud sensitive.TIR window channel(s) around 11 micrometers .
Wind (horizontal)5 - marginalLimited to high latitudes.. Cloud or water vapour tracers needed.TIR channel(s) around 11 micrometers window