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Numerical Weather Prediction Readiness for NPP And JPSS Data Assimilation Experiments for CrIS and ATMS Kevin Garrett 1, Sid Boukabara 2, James Jung 3,

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Presentation on theme: "Numerical Weather Prediction Readiness for NPP And JPSS Data Assimilation Experiments for CrIS and ATMS Kevin Garrett 1, Sid Boukabara 2, James Jung 3,"— Presentation transcript:

1 Numerical Weather Prediction Readiness for NPP And JPSS Data Assimilation Experiments for CrIS and ATMS Kevin Garrett 1, Sid Boukabara 2, James Jung 3, Eve-Marie Devaliere 4, Xiaoyan Zhang 4, Wanchun Chen 1 NOAA Satellite Science Week May 3, 2012 Kansas City, MO 1. Riverside Technology, Inc 2. Joint Center for Satellite Data Assimilation 3. University of Wisconsin 4. ERT

2 2 Outline Forecast Impact3 JCSDA Status 1 Future Work/Summary4ATMS Radiance Assimilation2 NOAA Satellite Science Week Meeting

3 JCSDA Status  JCSDA / NESDIS / NCEP agreement to expedite R2O for ATMS assimilation into the GSI  GDAS Hybrid/ENKF ported to S4 system  Verification and Radiance Monitoring ported to S4  JCSDA website extended for experiment visualization  Control run and ATMS experiments run for Dec 15 – March 15  CrIS proxy data and real data being assimilated 3 NOAA Satellite Science Week Meeting

4 S4 Overview  Brief Technical Description  The S4 system is a Linux cluster (Dell hardware)  3072 CPU cores in 64 compute nodes with 8TB of total RAM  520 TB in 26 storage nodes  Quad data rate (40 Gbps) Infiniband interconnects between all compute and storage nodes  Lustre high performance filesystem for scratch space (4 x 80TB) and data storage (200 TB)  Hosted in the UW/SSEC Data Center (with UPS) NOAA Satellite Science Week Meeting 4 Supercomputer for Satellite Simulations and data assimilation Studies (S4), hosted by University of Wisconsin.  Major activities  (1) Undertake satellite data assimilation experiments at global and/or regional scales and the assessment of their impacts on forecast models skills, using currently flying satellite sensors and allowing scientists to test new science/methodology and  (2) In support of the activity above, undertake all necessary satellite data simulations, calibration, algorithms development/improvement, radiative transfer modeling and validation, quality control (QC) procedures, etc  (3) Perform Observing System Simulation Experiments (OSSEs) for new sensors (such as GOES-R and JPSS).

5 5 Outline Forecast Impact3 JCSDA Status 1 Future Work/Summary4ATMS Radiance Assimilation2 NOAA Satellite Science Week Meeting

6 Experiment Overview  Goal: Determine the ATMS assimilation impact on forecast  Use updated GFS and GDAS with GSI Hybrid Ensemble Kalman Filter (ENKF)/3DVAR  Control run  ATMS run  Forecast/analysis model resolution at T574  80 ensemble members during analysis at T254  Begin Dec. 15, 2011  ATMS bias spun-up by NCEP  Allow model spin-up on S4 for 1 month of data  Assessment period Jan. 15, 2012 – Mar. 15, 2012 NOAA Satellite Science Week Meeting 6

7 Experiment Overview  Control run  Conventional data (RAOB, aircraft, ship, buoys), AMVs, surface synoptic  Satellite data: AMSU-A (N15, N18, N19, AQUA) MHS (N18, N19, MetOp-A) HIRS (N19, MetOp-A) IASI (MetOp-A) AIRS (AQUA) AVHRR (N18, N19, MetOp-A) GOES Sounder (13) Seviri (Meteosat 9) ASCAT, WindSat NOAA Satellite Science Week Meeting 7  ATMS run  All control obs plus NPP ATMS (TDR)  FOVs 1-3 and 94-96 not assimilated  All channels except for 15 (57 GHz)  All channels averaged to 3.3 beam resolution (AAPP)

8 ATMS Spatial Averaging NOAA Satellite Science Week Meeting 8 Channel 1 3.3° – 5.2°

9 ATMS Coverage NOAA Satellite Science Week Meeting 9 N18 AMSU-A 23 GHz NPP ATMS 23 GHz

10 ATMS Observation Count NOAA Satellite Science Week Meeting 10 Observation Counts N19 AMSU-A 23 GHz N19 AMSU-A 52 GHz S-NPP ATMS 23 GHz S-NPP ATMS 52 GHz Obs Count by Scan Position

11 ATMS Bias NOAA Satellite Science Week Meeting 11 ATMS 1-4 ATMS 17-21 AMSU 1-4 MHS 1-4

12 Initial CrIS Assimilation NOAA Satellite Science Week Meeting 12

13 13 Outline Forecast Impact3 JCSDA Status 1 Future Work/Summary4ATMS Radiance Assimilation2 NOAA Satellite Science Week Meeting

14 Anomaly Correlation NOAA Satellite Science Week Meeting 14

15 Anomaly Correlation NOAA Satellite Science Week Meeting 15

16 CONUS Precip Scores NOAA Satellite Science Week Meeting 16

17 17 Outline Forecast Impact3 JCSDA Status 1 Future Work/Summary4ATMS Radiance Assimilation2 NOAA Satellite Science Week Meeting

18 Future Work  Finalize assessment of ATMS impact from data denial experiment  Work on alignment of control runs between s4 and CCS (benchmark)  Assess impact of ATMS replacement of POES/Metop (remove redundancy)  Work closely with NCEP partners to support successful transition of ATMS into operations  Coorindate with parallel efforts to assess the overall global observing system and how ATMS fits in  Coordinate efforts to begin impact assessment of assimilation NOAA products into NOAA models, in collaboration with CIRA (water vapor), CIMMS (temperature sounding), and CREST (surface products) NOAA Satellite Science Week Meeting 18

19 Summary  S4 providing resources for OSSEs and data denial experiments (global/regional)  ATMS data assimilated successfully with neutral impact  CrIS proxy data successfully assimilated; CrIS real data successfully ingested but needs tuning Thank you! Acknowledgements: John Derber, Andrew Collard, Daryl Kleist (NCEP/EMC) NOAA Satellite Science Week Meeting 19

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