BackForwardInstrument:  POAM 

Instrument details
Acronym POAM
Full name Polar Ozone and Aerosol Measurement
Purpose Atmospheric chemistry in high troposphere and stratosphere. Tracked species: H2O, NO2, O3 and aerosol
Short description 9-channel photometer operating in the range 350-1064 nm (POAM-2 on SPOT 3) or 350-1024 nm (POAM-3 on SPOT 4). Spectral resolution about 10 nm
Background New development
Scanning Technique Limb scanning in solar occultation; vertical range 10-60 km
Resolution 300 km (horizontal), 0.6 km (vertical)
Coverage / Cycle N/A (few tens of events/day limited to latitudes above ~ 60
Mass 25 kg Power Data Rate

 

Providing Agency NRL
Instrument Maturity Flown on operational programme
Utilization Period: 1993 to 2006
Last update: 2017-01-17
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
  • Limb sounders
  • Limb sounder
WIGOS Subcomponents
  • Subcomponent 2
  • UV/VIS/NIR/IR/MW limb sounders
  • UV/VIS/NIR/IR occultation limb sounder
Mission objectives
No mission objectives have been defined.
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
Atmospheric temperature5 - marginalDaylight only.. Limited to high atmosphere.VIS spectroscopy at lower resolution 10 nm
Specific humidity5 - marginalDaylight only.. Limited to high atmosphere.NIR spectrometry with several water vapour bands (main: around 940 nm).