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OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM...

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OMPS Small Field of View Products OMPS-TC-EDR and OMPS-NP-EDR Trevor Beck NOAA/NESDIS/STAR August 9, 2016
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Page 1: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

OMPS Small Field of View

Products

OMPS-TC-EDR and OMPS-NP-EDR Trevor Beck

NOAA/NESDIS/STAR August 9, 2016

Page 2: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Outline S-NPP/J01 IDPS capable of producing OMPS SDR

MedRes NP and NM (BLK2.0 PSAT21 and later) Medium Resolution EDR total ozone products from NDE 5x5 EDR ozone profile enhancements Status of NDE Implementation and MedRes capability

* S-NPP someday also will make measurements at medium

and high resolution( upgrade to FSW6).

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Page 3: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Expected J01 SDR Measurements

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J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans per granule NP MedRes, 5x5, 5 scans per granule X 5 xtracks. 400 scans per orbit. Wavelength

dimension ~150 measurements from 250nm to 310nm. Images shown in this presentation are J01 Proxy data derived from NPP and NPP diagnostic, from off-line ADL runs at NOAA by the OMPS STAR SDR team. These are SDR formats. the NadirMapper RDR measurements can be made at different spatial and spectral measurements. The IDPS system will aggregate pixels to produce either 35x5 or 103x15.

Page 4: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

NM Low Res SDR Format

Same number of ground pixels as current nominal NPP

SDR. 35X5. This is the expected nominal SDR format from L+3 months

to L+9 months Approximate same wavelength dimensions and coverage

as NPP 35x5. J01 RDR measurements will be made at higher spatial

resolutions, the IDPS will aggregate to 35x5.

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Page 5: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

NM Med Res SDR Format This is the expected nominal SDR format from L+9 months

onward 15 scans per granule, 103 xtrack pixels Approximate same wavelength dimensions and coverage

as current NPP NM. RDR measurements will be made at higher spatial

resolutions, the IDPS will aggregate to 103x15.

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Page 6: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

NM Ground Pixel Sizes

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Page 7: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

J01 and S-NPP NP SDR

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S-NPP Configuration Ground pixel size: 250Km . 250Km 80 ground pixels per orbit Viewing Zenith Angle Approximately zero°

J01 Configuration J01 Ground Pixel size: 50Km . 50Km 2000 pixels per orbit=80*5*5 Viewing Zenith Angle ranges from -7.5° to 7.5°

Page 8: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

5x5 Ozone Retrieval NP

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5x5 Ozone retrieval Example. We took S-NPP diagnostic data and converted to Nominal. Then it is processed through ADL BLK2.0 to SDR level. The image is created by the NDE V8Pro ozone profile retrieval code. This science code is currently undergoing security code review at NDE.

Page 9: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Outline

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Page 10: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

MedRes TC Ozone Retrieval

The Following page shows 103x5 ozone Image is upsampled version of a 35x5 measurement. There are striping problems. This is a good EDR test dataset because we

understand the 35x5 SDR inputs. The upsampled 103x5 have the same characteristics.

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Page 11: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Med Res Image

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Page 12: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

OMPS 43A Proxy Data Our Current best SDR test dataset for EDR testing is based on 2016/04/02 35x5nm 5x5np.

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Page 13: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Currently Delivered NDE V8PRO

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Based on the V8SBUV version 8. Sized to 5x5 output, netcdf-4. 2000 profiles per orbit. RT lookup tables include VZA index. Total ozone computation uses

VZA,RAZA. Profile single scatter RT code uses modified path length: assume we are

looking Nadir but a longer path length: 1/cos(VZA) + 1/cos(SZA). Reasonable approximation, max VZA is ±7.5° Our implementation relaxes some SBUV/2 specific constraints in the V8SBUV

code: grating drive, 12 monochromator & 12 photometer paired measurements, nadir only. There was a major rewrite done to the SBUV/2 code.

We can account for separate viewing geometries in the NM, NP SDR inputs. This was developed using OMI inputs: UV1,UV2 differences.

Page 14: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Reflectivity V8pro 2016/04/02

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Page 15: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Retrieved Column 2016/04/02 Sum of Retrieved 21 layer profile

Page 16: OMPS Small Field of View Products...3 J01 SDR NM expected to be either of two configurations: 1) NM LowRes, 35 xtrack and 5 scans per granule 2) NM MedRes, 103 xtrack and 15 scans

Conclusion The V8 total ozone 103 X 15 algorithm had been put into

the NDE system. A 5x5 capable ozone profile retrieval code is under review

for inclusion in the NDE processing system for JPSS-1. The NP 5x5 total ozone parameters are as expected( 2%

bias). We haven’t gotten the results from the V8PRO ozone

profiles that we would like( wavelength problem). NOAA STAR is on track for 5x5 NP EDR ozone profiles

based on the legacy V8SBUV retrieval for J01 OMPS. NOAA STAR made significant enhancements to the

SBUV/2 Version 8 ozone profile algorithm based on OMI and OMPS experiences.

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