WMO OSCAR | Details for Instrument OMPS-nadir

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Instrument: 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

Joint Polar Satellite System (NOAA)
- SNPP (see instrument status) Jan 2012 - 2028
- NOAA-20 (see instrument status) Feb 2018 - 2031
- NOAA-21 (see instrument status) Nov 2023 - 2036
- JPSS-4 (see instrument status) Dec 2027 - 2036
- JPSS-3 (see instrument status) 2033 - 2041

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.

Search:

Variable	Relevance for measuring this variable	Operational limitations	Explanation
BrO*	1 - primary	Cloud sensitive.. Daylight only.	UV spectrometry. BrO lines around 300 nm
ClO*	1 - primary	Cloud sensitive.. Daylight only.	UV Spectrometry. ClO lines around 300 nm
Aerosol column burden	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry for absorbing aerosol
Aerosol effective radius	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry for absorbing aerosol
Aerosol mass mixing ratio	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry for absorbing aerosol
Aerosol Optical Depth	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry for absorbing aerosol
Aerosol type	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry for absorbing aerosol
HCHO*	2 - very high	Cloud sensitive.. Coarse vertical resolution.. Daylight only.	UV spectrometry. HCHO lines around 350 nm
HCHO Total Column*	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry. HCHO lines around 350 nm
NO*	2 - very high	Cloud sensitive.. Coarse vertical resolution.. Daylight only.	UV spectrometry. NO lines around 250 nm
NO2*	2 - very high	Cloud sensitive.. Coarse vertical resolution.. Daylight only.	UV spectrometry. Several lines in the range around 220 nm
O3*	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
O3 Total Column*	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
SO2*	2 - very high	Cloud sensitive.. Coarse vertical resolution.. Daylight only.	UV spectrometry. SO2 lines around 350 nm
Aerosol volcanic ash	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry, specifically sensitive to ash
Aerosol volcanic ash Total Column	2 - very high	Cloud sensitive.. Daylight only.	UV spectrometry, specifically sensitive to ash
NO2 Total Column*	3 - high	Cloud sensitive.. Daylight only.	UV spectrometry. Several NO2 lines
PSC occurrence	3 - high	Coarse vertical resolution.. Daylight only.	UV spectrometry
SO2 Total Column*	3 - high	Cloud sensitive.. Daylight only.	UV spectrometry. SO2 lines around 350 nm

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