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GSICS Executive Panel 10 JMA GPRC Report

GSICS Executive Panel 10 JMA GPRC Report. 6-8 June 2010 WMO HQ, Geneva Yoshihiko Tahara Meteorological Satellite Center Japan Meteorological Agency. MTSAT Infrared Inter-Calibration (Progresses since EP-8 via EP-9).

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GSICS Executive Panel 10 JMA GPRC Report

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  1. GSICS Executive Panel 10JMA GPRC Report 6-8 June 2010 WMO HQ, Geneva Yoshihiko Tahara Meteorological Satellite Center Japan Meteorological Agency

  2. MTSAT Infrared Inter-Calibration(Progresses since EP-8 via EP-9) May 2010: ATBD and GSICS Product Acceptance Form (GPAF) were submitted July 2010: MTSAT-2 IR inter-calibration system and its monitoring web page were implemented simultaneously with the switchover to MTSAT-2 from MTSAT-1R July 2010: GSICS Correction for MTSAT IR entered the Demonstration Phase of the GSICS Procedure for Product Acceptance (GPPA) September 2010–: GSICS Correction data have been uploaded operationally on the EUMETSAT GSICS server (THREDDS) –January 2011: Clear Sky Radiance (CSR) product was experimentally reprocessed by using the MTSAT IR GSICS Correction, and its preliminary Observing System Experiment was performed Ongoing:Review is underway to enter the Pre-operation Phase Ongoing: MTSAT IR Near Real-Time Corrections (NRTC) is under development 6-8 June 2011, GSICS-EP10

  3. Review of MTSAT IR GSICS Correction (tentative) Comments from reviewers regarding the usability of MTSAT IR GSICS Correction at this moment • Too far from the GSICS portal (wiki) to reach MTSAT GSICS corrections • Slow access to the GSICS wiki page from Japan • Once knowing the place of the MTSAT GSICS corrections, easy and fast to get • Enough information in meta-data • Suggestions to MTSAT ATBD • Tutorial to use GSICS correction expected • No explanations on “LOOK-UP TABLE”, and Radiance and Tb conversion

  4. Preliminary Experiment on CSR • CSR data were regenerated by using MTSAT IR GSICS Correction (No tuning for cloud screening parameters was performed) • Regenerated TBs of the MTSAT WV ch. are about 0.5 K higher than original TBs (left chart), that decreases departure between observation and NWP • One month Observing System Experiment shows that number of CSR data assimilated in NWP are increased (right chart) WV TB differences w/ and w/o GSICS Numbers of CSR data assimilated in OSE

  5. Experiment on SST • MTSAT-2 IR images contain midnight calibration error, which becomes large during eclipse seasons (right charts) • To use GSICS correction, SST parameters should be tuned again. Otherwise, significant biases would be appeared. (bottom chart) • If diurnal bias information is obtained from GSICS, better SST product would be expected MTSAT 12um – AIRS (All orbits) MTSAT 12um – AIRS Asc.(13:30) GSICS Correction SST(GSICS) – SST(Original) 8 January 2011 1 March 2011 MTSAT 12um – AIRS Dec.(01:30) Jul 2010 Jun 2011

  6. MTSAT Visible Calibration(Progresses since EP-8 via EP-9) September 2010: MTSAT-2 visible calibration system and its monitoring web page were implemented Vicarious calibration comparing RT simulated radiances over Cloud-free ocean, land (bare ground on Australia) and uniformed liquid cloud top by using P, T, WV, W-surf from NWP re-analysis, ozone from TOMS and Land surface albedo and cloud parameters from MODIS Collaborative researches with the Atmosphere and Ocean Research Institute (AORI), the University of Tokyo Ongoing: Investigate on using ice cloud as the brightest target Ongoing: Investigate on GMS VIS calibration before MODIS era Collaborative researches with the Center for Environmental Remote Sensing (CEReS), Chiba university Ongoing: Examine to generate re-calibrated global GEOSAT data Ongoing: Examine to retrieve downward SW flux and validate it 6-8 June 2011, GSICS-EP10

  7. Re-calibration of Global GEO Visible Data (collaboration between Chiba Univ. and JMA) Comparisons between RT calculations and observations in September 2002 Radiance(W/m2/sr/um) METEOSAT-5 METEOSAT-7 GOES-8 GOES-10 DN Calibration coefficients (slope and Inercept) in 2002 7 6-8 June 2011, GSICS-EP10

  8. Downward SW Flux from Re-calibrated GEO VIS images (collaboration between Chiba Univ. and JMA) Downward shortwave flux at the ground surface Downward SW flux at the surface METEOSAT-7 METEOSAT-5 GMS-5 GOES-10 GOES-8 0 deg. 63 deg. 140 deg. 225 deg. 285 deg. Average on 2 – 3 Sep 2002 EXAM SYSTEM [Takenaka et al., 2011, JGR-atmosphere] 6-8 June 2011, GSICS-EP10

  9. Validation of the Flux by BSRN and SKYNET (collaboration between Chiba Univ. and JMA) METEOSAT-7(322.5E-31.5E) METEOSAT-5(31.5E-101.5E) GMS5(101.5E-182.5E) GOES-8(225E-345E) GOES-10(165E-285E) EXAM SYSTEM [Takenaka et al., 2011, JGR-atmosphere] 6-8 June 2011, GSICS-EP10

  10. Response to Action EP 8.2 • May 2010: Action EP 8.2 (JMA, in consultation with GCC, to develop a prototype of a unified web page….) was adopted • February 2011: Prototype HTML was presented at the GRWG and GDWG Web meeting for review Prototype of a unified GSICS bias monitoring Web page 6-8 June 2011, GSICS-EP10

  11. JMA GSICS Members from April 2011 Executive Panel (EP) • (new) Yoshihiko TAHARA (Mr) GSICS Research Working Group (GRWG) • Arata OKUYAMA (Mr) • Kenji DATE (Mr) • (new) Hiroaki TSUCHIYAMA (Mr) GSICS Data Working Group (GDWG) • (new) Yuki KOSAKA (Mr) • Ryuichiro NAKAYAMA (Mr) GPRC points of contacts for operational matters • (new) Arata OKUYAMA (Mr) 6-8 June 2011, GSICS-EP10

  12. 6-8 June 2011, GSICS-EP10

  13. 6-8 June 2011, GSICS-EP10

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