BackForwardInstrument:  OMPS-nadir 

Instrument details
Acronym OMPS-nadir
Full name Ozone Mapping and Profiler Suite
Purpose Atmospheric chemistry - Ozone profile and total-column or gross profile of other species.  Tracked species: BrO, HCHO, NO2, O3, SO2
Short description

Two UV grating spectrometers of spectral resolution 1 nm (sampling at 0.42 nm): Cross-track mapper for total ozone: 300-380 nm, SNR = 1000 Nadir-viewing ozone profiler: 250-310 nm, SNR from 35 @ 250 nm to 400 @ 310 nm
Background

Developed in the framework of the former NPOESS
Scanning Technique

Mapper: cross-track swath 2800 km, along-track one 50-km strip in 7.6 s. Nadir profiler: one along-track sounding every 38 s (250 km)
Resolution Mapper: 50 km on S-NPP but improved to 10km on NOAA-21.  Nadir profiler: 250 km
Coverage / Cycle Global coverage: mapper once/day, nadir profiler in 12 days. Daylight only
Mass 12.5 kg Power Data Rate

 

Providing Agency NOAA
Instrument Maturity Flown on operational programme
Utilization Period: 2012 to 2041
Last update: 2024-11-21
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
  • Cross-nadir shortwave (UV/VIS) sounder
WIGOS Subcomponents
  • Subcomponent 1
  • UV/VIS/NIR sounders, nadir and limb
  • UV/VIS/NIR nadir sounder
Mission objectives
Primary mission objectives
  • BrO
  • ClO
  • HCHO
  • HCHO Total Column
  • NO
  • NO2
  • NO2 Total Column
  • O3
  • O3 Total Column
  • SO2
  • SO2 Total Column
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
Aerosol column burden2 - very highCloud sensitive.. Daylight only.UV spectrometry for absorbing aerosol
Aerosol effective radius2 - very highCloud sensitive.. Daylight only.UV spectrometry for absorbing aerosol
Aerosol mass mixing ratio2 - very highCloud sensitive.. Daylight only.UV spectrometry for absorbing aerosol
Aerosol Optical Depth2 - very highCloud sensitive.. Daylight only.UV spectrometry for absorbing aerosol
Aerosol type2 - very highCloud sensitive.. Daylight only.UV spectrometry for absorbing aerosol
BrO*1 - primaryCloud sensitive.. Daylight only.UV spectrometry. BrO lines around 300 nm
HCHO*2 - very highCloud sensitive.. Coarse vertical resolution.. Daylight only.UV spectrometry. HCHO lines around 350 nm
HCHO Total Column*2 - very highCloud sensitive.. Daylight only.UV spectrometry. HCHO lines around 350 nm
ClO*1 - primaryCloud sensitive.. Daylight only.UV Spectrometry. ClO lines around 300 nm
NO*2 - very highCloud sensitive.. Coarse vertical resolution.. Daylight only.UV spectrometry. NO lines around 250 nm
NO2*2 - very highCloud sensitive.. Coarse vertical resolution.. Daylight only.UV spectrometry. Several lines in the range around 220 nm
NO2 Total Column*3 - highCloud sensitive.. Daylight only.UV spectrometry. Several NO2 lines
O3*2 - very highCloud sensitive.. Daylight only.UV spectrometry. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
O3 Total Column*2 - very highCloud sensitive.. Daylight only.UV spectrometry. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
PSC occurrence3 - highCoarse vertical resolution.. Daylight only.UV spectrometry
SO2*2 - very highCloud sensitive.. Coarse vertical resolution.. Daylight only.UV spectrometry. SO2 lines around 350 nm
SO2 Total Column*3 - highCloud sensitive.. Daylight only.UV spectrometry. SO2 lines around 350 nm
Aerosol volcanic ash2 - very highCloud sensitive.. Daylight only.UV spectrometry, specifically sensitive to ash
Aerosol volcanic ash Total Column2 - very highCloud sensitive.. Daylight only.UV spectrometry, specifically sensitive to ash