JMA Agency Report 2017 Arata Okuyama, Masaya Takahashi and Hidehiko Murata Meteorological Satellite Center, Japan Meteorological Agency

Presentation Overview GSICS Activities, Action & Progress Summary Support to GDWG Activities Support to GRWG Activities Instruments Updates – AHI on Himawari-8/-9 Introduce/Confirm the Agency’s Personnel supporting GSICS GSICS activities to be discussed in this joint meeting.

JMA GSICS Activities & Progress Summary Current GSICS activities Implementation of GSICS inter-calibration methods to Himawari-8/AHI Preparation for submitting VNIR/IR inter-calibration products to GPPA Notable progress after 2016 Annual Meeting Collaboration on AHI/ABI calibration (incl. on-board calibration) with NOAA ABI calibration team Study on Himawari-8/AHI lunar calibration in collaboration with EUMETSAT and USGS Himawari-9/AHI Cal/Val during In-Orbit Testing (shown in later slides)

Statuses of Major Actions GRWG GRWG_15.47 JMA to investigate and provide a report on the uncertainty analysis to support progress to Pre-Operational mode. Delayed GIR.2016.3o.1 Arata to check how the cold end corrections are behaving using AIRS. To be closed this week GIR.2016.3o.2 Arata to use the various regression methods for both radiance and brightness temperatures and process the corrections as derived from AIRS and report back. GDWG GDWG.2016.5b.1 JMA to include invalid_hours in the agreed conventions once the time format has been checked that it follows ISO 8601 format. Delayed GDWG.2016.6c.4 JMA to provide on Wiki example landing pages; current and past satellites. Closed GDWG.2016.6g.1 GDWG chair (Masaya) to update wiki with the new product template. GDWG.2016.6g.2 JMA to investigate the impact enhancement data model, use of grouping (create an example - available in java or other in C/Fortran).

Support to GDWG Activities Summary of the tasks of JMA’s supports in the GDWG. Coordinating/developing the specification of GSICS deliverable formats and tools as a “bridge” between GRWG/GDWG. Reviewing/validating GSICS deliverables. Member: Masaya Takahashi (co-chair) Issues 1 person-month / year contribution (at least) is required in GDWG ToR; most of the term has been spent for the Annual Meeting and EP Meeting. Difficult to spend more time for GDWG activities because the member is also involved with GRWG.

Support to GRWG Activities Summary of the tasks of JMA’s supports in the GRWG Implementing VNIR/IR inter-calibration methods to JMA’s GEO imagers Himawari-8, -9 /AHI, MTSAT-2/Imager, MTSAT-1R/JAMI Developing/investigating new Cal/Val approaches Lunar calibration, vicarious calibration using RTM, GEO-GEO inter-comparison Developing inter-calibration algorithms for heritage GEO imagers (GMS-1 to -5/VISSR) in a framework of SCOPE-CM IOGEO project Member Arata Okuyama, Hidehiko Murata and Masaya Takahashi Issues Time is needed for a newcomer to start up GSICS activities Arata will leave GSICS at the end of this month…

Instruments Updates Himawari-9 Himawari-8 Has been operational since July 2015. Himawari-9 Launched on 2 Nov. 2016. Same VIS/IR imager (AHI) as that on-board Himawari-8. Put into in-orbit standby as back up for Himawari-8 on 10 March 2017. JMA has been collaborating with NOAA, EUMETSAT and GSICS members in AHI Cal/Val. 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 MTSAT-2 Meteorological Mission Himawari-8 Himawari-9 In-orbit standby Manufacturing Launch Operational

Validation of VNIR calibration Validation results Good agreement between two validation approaches except for 0.51/0.86 μm Himawari-9: ~6% brighter/darker than Himawari-8 in 0.47/1.6 μm, within 2% in other bands Ray-matching w/ S-NPP/VIIRS Vicarious calibration using RTM AHI w.r.t VIIRS reflectance [%] AHI w.r.t Simulated reflectance [%] Calibration slope Himawari-9: pre-launch determined value Himawari-8: value derived from solar diffuser observation Mar-May 2015 Himawari-8/AHI Himawari-9/AHI Himawari-8/AHI Himawari-9/AHI 14-28 Feb. 2017 14-28 Feb. 2017 0.47 0.51 0.64 0.86 1.6 2.3 [μm] 0.47 0.51 0.64 0.86 1.6 2.3 [μm]

Stats from 14-28 Feb. 2017, at standard scene Metop-A/IASI Metop-B/IASI Aqua/AIRS S-NPP/CrIS IR Inter-calibration Himawari-8/AHI Himawari-9/AHI 1.0 [K] 3.9 μm 6.2 μm 3.9 μm 6.2 μm -1.0 [K] 6.9 μm 7.3 μm 6.9 μm 7.3 μm 8.6 μm 9.6 μm 8.6 μm 9.6 μm 10.4 μm 11.2 μm 10.4 μm 11.2 μm Stats from 14-28 Feb. 2017, at standard scene 12.4 μm 13.3 μm 12.4 μm 13.3 μm [UTC]

JMA’s Personnel supporting GSICS GRWG Arata Okuyama (and his successor) VNIR vicarious calibration using RTM and LEO observations Lunar calibration based on radiance approach Masaya Takahashi IR inter-calibration Lunar calibration using GIRO (incl. developing inter-calibration method in collaboration w/ EUM) VNIR inter-calibration based on DCC and Ray-matching approach Hidehiko Murata GEO-GEO inter-comparison, which could be linked to future GEO-GEO/GEO-LEO blending product GDWG Keep current contribution to GDWG activities Others Tasuku Tabata 1-year visiting scientist at EUMETSAT Climate team, starting from 23 Mar. 2017 (this Wednesday!) Inter-calibration of heritage GEO imagers within a framework of SCOPE-CM/IOGEO

JMA GSICS activities to be discussed in this joint meeting GRWG IR: developing GSICS products for GEO imager; strong interests on diurnal calibration variation [7be] VNIR: lunar calibration [8d] GDWG Requirements for GSICS Plotting Tool to support VIS/NIR products [3m, 6c] Future products - VNIR+IR in one GSICS Correction [3m, 6f] Spectral Response Function netCDF towards “GSICS Standard netCDF [3o, 5e]

Thank you for your attention WMO GSICS Portal http://gsics.wmo.int GSICS Coordination Centre http://www.star.nesdis.noaa.gov/smcd/GCC/index.php GSICS Product Catalog https://www.star.nesdis.noaa.gov/smcd/GCC/ProductCatalog.php GSICS Wiki http://gsicswiki.net/wiki