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Ded /Ref RAOB Utility in Sat Validation (July 2013)

Ded /Ref RAOB Utility in Sat Validation (July 2013). Tony, Nick Nalli , Frank Tilley, Bomin Sun, Flavio , Changyi , Murty , Antonia …. BACKGROUND. NOAA Products Validation System (NPROVS). NUC. MiRS NPP. IDPS. GTS (CFSR+GFS). Dedicated + Reference + COSMIC. DualReg. ECMWF.

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Ded /Ref RAOB Utility in Sat Validation (July 2013)

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  1. Ded /Ref RAOB Utility in Sat Validation(July 2013) Tony, Nick Nalli, Frank Tilley, Bomin Sun, Flavio, Changyi, Murty, Antonia …

  2. BACKGROUND

  3. NOAA Products Validation System (NPROVS)

  4. NUC MiRS NPP IDPS GTS (CFSR+GFS) Dedicated + Reference + COSMIC DualReg ECMWF NPROVS AIRS v6 IASI-Met-OP NUCAPS stamp IDPS (IASI?) stamp granules Daily; nrt Daily; 7-day delay (NetCDF / HDF5)

  5. GCOS “Reference” Upper AIR Network (GRUAN) Illustration of the initial set of 15 sites composing the Global Climate Observing System (GCOS) Reference Upper Air Network (GRUAN). Each site provides one or more reference radiosonde observation per week along with specified ancillary ground (lidar, MWR, FTIR …) observations. A reference observation in the context of GRUAN includes adherence to best measurement practices as specified in the GRUAN Manual and Measurement Guidelines including specification of measurement and product uncertainty. Expansion of GRUAN to up to 40 sites within the next five year is planned.

  6. Vaisala RS92 Digicora III (Fin) GRUAN Sites 2012

  7. Vaisala RS92 … JPSS Suomi-NPP “dedicated” cal/val program (Nalli… )

  8. DigicoraI,II,Mar (Fin) Digicora III (Fin) Autosonde (Fin) All Global Vaisala RS92

  9. Ref / DedVaisala RS92 • Sampling

  10. Current • 3 ARM sites • dual launch (+/- 30 minute of overpass) at SGP and NSA every 2nd day; 6mos • single launch (-30 min) at TWP every 2nd day; 6 mos • alternating ascend / descend node • Beltsville and PMRF provide single launch (-30 min); sporadic • AEROSE (RHB Ship) provide twice daily single launch; 1 month • GRUAN (10 sites incl ARM) provide reference RS92; multiple daily, sporadic

  11. Ref / DedRS92 Sampling • Max Spread (annual) • 3 ARM sites • single dedicated at SGP, NSA and TWP every 4thday; 12mos … (save 180 RS92) • Beltsville and PMRF provide sporadic single dedicated RS92 • AEROSE • Create 2 dedicated GRUAN sites using 180 RS92 from ARM • Create 3rd dedicated GRUAN site via JPSS budget cal/val budget (30K) • every 4th day; 12 mos • GRUAN (10 sites incl ARM) provide reference RS92; multiple daily, sporadic

  12. Ref / Ded Sampling Strategies • Actual Propose • 3 ARM sites • Dual at SGP every 4th; annual • Combo dual / single at NSA every 4th day … (save 45 RS92) • Single at TWP every 4th day • Beltsville and PMRF provide sporadic single dedicated RS92, sporadic • AEROSE • Create 2 dedicated GRUAN sites using “saved” from ARM + JPSS budget (40K) • (logic: don’t need as many dual launches from NSA given the multiple consecutive overpasses 106 minutes apart which somewhat mimics dual sonde ...) • GRUAN (10 sites incl ARM) provide reference RS92; multiple daily, sporadic

  13. GRUAN processing of dedicated RAOB from ARM from other dedicated from other global RS92 … reference with uncertainty estimate

  14. Discussion • Recommendation • Moving Forward

  15. Process 1: • Ref / Ded Collocation Dataset • 7-day delay : • Access GRUAN (Frank ) • Access Dedicated (Frank, Nick, …) • Access COSMIC (Bomin, Bob K … • Unified RAOB Downgrades (also COSMIC ?): • 100 RTA layers • 30 coarse layers • Upwards to top RTA layer • Collocate the Products (Bomin, Changyi … • Consistent with “Stamp”, add 30 mins (RAOBs), closest in time … • Append Stamps (Nick, Antonia … • Append GTS (including for COSMIC) (Bomin) • NETCDF/HDF5

  16. Process 1: • Ref / Ded Collocation Dataset • Back-processing: • Append “tardy” Obs available after 7-days (ie PMRF…) • Append Historical Observations • from May 2012 for S-NPP • from 2010 for IASI (AIRS?) • Append Stamp (all) • Append available NPROVS (subsample with matched GTS) • Append ancillary profiles (SSE, lidar, FTIR, MWR, GPS, …) • Other ? • NETCDF/HDF5

  17. Process 2: Re-Retrieval • Leveraging of in-house capabilities (focus day) • Finalize stamps (EDRs and SDRs , etc … per granule) • identify EDR used for Oper (NPROVS) monitoring • Provide routine oper monitoring … 0-order, nrt • Provide routine re-retrieval … 1st-order, nrt • Identify if info missing for “back processed” re-retrieval • stage 0, no missing data; good to go • stage 1, missing data but available internally; fairly good to go • stage 2, missing data but available externally; need work • stage 3, missing data not available; cannot re-retrieve • Experiment design for back-processed 1st order re-retrieve • Experiment design for proposed 2nd-order re-retrieve … nrt or back-processed • Append re-retrieval set(s) to Collocation file (Bomin …

  18. Process: Re-Retrieve (2) • Routine Monitoring (0, 1st order …); nrt and back-processed • PDISP, NARCS Interface; other? • full granule tbd • Alg Troubleshooting / Development focused re-retrieve activity; tbd • Platform Impact Analysis • Dedvs Ref vs GTS vs SASBE … • RAOB vsGFS vs CFSR vs ECMWF… • Collocation vs Focus day(s) • Publications

  19. ARCHIVE PDISP, NARCS, tbd.pp ( 0-order ) Select SDR, EDR (confirm Stamp vs EDR) operational Ded / Ref Collocations daily Re-Retrieve (selected EDR, ...) (1st order, 2nd…) NUCAPS, IASI, … AIRS, IDPS (scripts) managed by project Ded / Ref Collocations (+ ReRet1 …) (project archive) Guides Development Publications PDISP, NARCS, tbd … p Ref/DedDataSet and Re-Retrieval

  20. … static GRUAN / SAT Collocation … All Satellites GTS @ GRUAN RAOB site + NOAA GFS,CFSR ( f / NPROVS ) Parrot GTS RAOB + NOAA GFS, CFSR GRUAN RAOB GRUAN @ non GTS RAOB site ECMWF … ECMWF … Ancillary Profile(s) NPROVS+ Ancillary Profile(s) Sat Rad: (FTIR and MW) Sat Rad: (FTIR and MW)

  21. RT Calculation • (pending) • RTM black box • SARTA, OSS, CRTM … • Pre-process RAOBS, NWP … • Calculate spectral intervals (insitu, NWP, retrieval …) • Respectively compare to SDR (Calc-Obs) • Compare above to geophysical profile performance • Retrieval and Platform Analysis • Analytical interface • more … • Publications

  22. Examples of CrIMSSvs NUCAPS QC flag and cloudiness differences using ODS

  23. Examples of CrIMSS Impact V 6.3 vs V6.6using PDISP

  24. IDPS MX 6.3 vs. MX 6.6YIELD MX6.302/22 02/23 02/24 02/25 4 days (10 day) • IR+MW 20% 17% 18% 23% 19% 20% • MW-only 61% 63% 64% 59% 61% 62% • Poor 19% 21% 18% 19% 20% 18% MX6.6 03/02 03/03 03/04 03/05 4 days (10 day) • IR+MW 35% 37% 37% 34% 36% 34% • MW-only 50% 47% 44% 50% 47% 51% • Poor 16% 16% 19% 16% 17% 15%

  25. XX NSA 10 SGP 23 SOD 631 LIN 1245 CAB 349 PAY 6 TAT 292 MAN 729 NAU 489 (3774) Sondes (799) w/COSMIC (419) +/- 3hr, 150km Collocations of GRUAN Sonde, GTS Sonde and COSMIC; 2011

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