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STAR JPSS
Ozone Mapping and Profiler Suite (OMPS)

Team Lead: Trevor Beck, Chunhui Pan

Description:

Ozone Mapping and Profiler Suite (OMPS) measures the concentration of ozone in the atmosphere, providing information on how ozone concentration varies with altitude. Data from OMPS continues three decades of climate measurements of this important parameter used in global climate models. The OMPS measurements also fulfill the U.S. treaty obligation to monitor global ozone concentrations with no gaps in coverage.

OMPS consists of three spectrometers:

  • Nadir Total Column Spectrometer Provides Total Column ozone data with 50x50 km resolution at nadir
  • Nadir Profile Spectrometer provides ozone profiles in a single ground pixel of 250x250 km at nadir from SNPP; 5 ground pixel of 50x50 km at nadir from JPSS-1
  • Limb Sensor provides 1 km vertical sampling along three slits enabling ozone profile retrieval (Not on J1)

Heritage:

  • TOMS (Nadir Total Column) and SBUV/2 (Nadir Profiler)

OMPS Specifications


Parameter Nadir Mapper Nadir Profiler
Wavelength Range 300-420 nm 250-310 nm
Bandwidth (FWHM) < 1.1 nm < 1.1 nm
Samples/FWHM > 2.3 > 2.3
Horizontal Cell Size < 50 km @ nadir < 50 km @ nadir
SNR
(Signal-to-Noise Ratio)
312.5 nm   1000
318.0 nm   1000
331.0 nm   1000
336.0 nm   1000
364.0 nm   1000
377.0 nm   1000
252.00 nm      35
273.61 nm   100
283.10 nm   200
287.70 nm   260
292.29 nm   400
297.59 nm   400
301.97 nm   400
305.87 nm   400
Polarization Sensitivity < 5 % < 5 %
λ-registration < 0.01 nm < 0.01 nm
Albedo Calibration < 2 % < 2 %
Pixel to Pixel Calibration < 0.5 % < 1 %
Albedo Deviation Error < 1 % NS
Stray Light (Out of Band) < 1 % < 1 %

NS: Not Specified

FWHM: Full width at half maximum


Ozone Mapping and Profiler Suite (OMPS) from JPSS satellite

Photo courtesy of NASA.


OMPS TC Spectral Response Function

OMPS TC Spectral Response Function


OMPS NP Spectral Response Function

OMPS NP Spectral Response Function