Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Volcanic ash algorithm testbed by JMA for validation and inter-comparison Presented to CGMS-42 Plenary Day 2 session, agenda item [E.3.1.4, WGII/8] Japan Meteorological Agency

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Contents 1.Introduction 2.VAACs and Volcanic Ash Products from Satellites 3.International Cooperation in JMA and Himawari-8 4.Test-bed for inter-comparison of Multiple Volcanic Ash Retrieval Algorithms 5.Volcanic Ash Inter-comparison Workshop 6.Call for New Participants to the Testbed

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 3 3 Volcanic ash in the aircraft engine (Jakarta 1982) Introduction Damages on Aircraft from Volcanic Ash  Power down or off of engine  Low visibility  Damages on body  Contamination of fuel or lubricant -> Disruption of air traffic network Eruption of Eyjafjallajökul in Iceland, 2010

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 4 Tokyo VAAC in JMA VAACs in the world ▲ : Volcano VAACs and Volcanic Ash Products from Satellites IAVW/ Volcanic Ash Advisory Centers (VAACs)

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 5 Meteorological Watch Offices in area of responsibility Foreign VAACs Volcano Information Pilot Reports Satellite Observations NWP GPV Tokyo VAAC/JMA Civil Aviation Authorities and Other Related Organizations Tokyo VAAC is responsible for  Monitoring and Analysis of Volcanic Ash Cloud  Forecasting of Volcanic Ash Cloud  Issue of Volcanic Ash Advisory Aviation Weather Service Centers in Japan Volcanic Activity Reports ICAO volcanic ash products  Text Information (FVFE01)  Graphic Information (VAG) Information Flow of Volcanic Ash Advisory in Tokyo VAAC

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS  Watch the distribution, height and density of volcanic ash from satellite images -> Improvement of air traffic safety  Input the physical parameters of volcanic ash retrieved from satellite images to the simulation -> Improvement of volcanic ash transport prediction -> Needs of advanced algorithm of volcanic ash retrieval from satellites -> Development of multiple algorithms 6 Expectations to Satellite Images for VAACs operation Traditional split window image MTSAT-2, Jan 25-27, 2011 BT(10.8um)-BT(12.0um) User requirements (from a slide SNWC-1/PP2 by BoM) - Consistency is important - Level of trust in product must be high Validation will be important - Common formats for delivery - ICAO have indicated that consistency in products is a priority

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 7 NOAA/NESDIS JMA + EUMETSAT JMA/MSC International cooperation schemes in JMA Function: Ash Cloud Detection Retrieval quantitative information Developer: M. Pavolonis Algorithm: Bayesian method for ash detection 1D-Var for retrieval Function: Ash Cloud Detection Retrieval quantitative information Developer: F. Prata*, JMA** Algorithm: Bayesian method for ash detection** LUT for retrieval* H 2 O Intercept for height assignment**

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Himawari-8/9: Specification of Observation Channel Central Wavelength [μm] Spatial Resolution – km – km – km – km – km – km – km – km – km – km – km – km – km – km – km – km RGB Composited True Color Image O3O3 SO 2 CO 2 Water Vapor Atmospher ic Windows Channels of the Advanced Himawari Imager (AHI) Region: Typhoon Interval: 2.5 minutes (4 times in 10 minutes) Dimension: EW x NS: 1000 x 1000 km Region: Japan Interval: 2.5 minutes (4 times in 10 minutes) Dimension: EW x NS: 2000 x 1000 km x 2 Full disk Interval: 10 minutes (6 times per hour) Number of Channels: 516Interval: 30/60 min. 10min.

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 9 Concentration of volcanos in the world Coverage of observation area by MTSAT Coverage of observation area by MTSAT and volcano distribution

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS 10 Test-bed for Inter-comparison of Multiple Volcanic Ash Retrieval Algorithms JMA advantages to establish the testbed –Existing international cooperation schemes –Extended capability of Himawari-8 –Wide area coverage for many volcanos HLPP 3.3 –Foster the continuous improvement of products through validation and inter-comparison through international working groups and SCOPE-type mechanisms. WGII –JMA to establish an environment to implement multiple algorithms to retrieve quantitative ash cloud parameters from operational satellites. This will serve as a test bed for the intercomparison of retrievals on an operational basis in the framework of SCOPE- Nowcasting. JMA is invited to perform an intercomparison based on historical data and report on this to CGMS-42.

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Test-bed for Inter-comparison of Multiple Volcanic Ash Retrieval Algorithms Outline of Test-bed for volcanic ash retrieval (DRAFT) MSC OMP NPD Other Software (Algorithm A) Software (Algorithm B) Software (Algorithm C) Compile Source Code Test-bed Web Site Historical dataset Processing Visualization JMA Binary Source Code FTP-put Algorithm AAlgorithm BAlgorithm C Output (Algorithm A) Output (Algorithm B) Output (Algorithm C) Compile Visualization AODEPR MLDHGT Figures (Algorithm A) AODEPR MLDHGT AODEPR MLDHGT Figures (Algorithm B) Figures (Algorithm C) SAT Image (HSF, HRIT) MGDSST (Binary) NWP data (GRIB2) Algorithm Developer

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Test-bed for Inter-comparison of Multiple Volcanic Ash Retrieval Algorithms Note: Input datasets (NWP, SST) are different in each algorithm. Ash Top Height Mt.Kirishima (Japan), 27 Jan, UTC, MTSAT-2

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Satellite-based volcanic cloud retrieval inter-comparison workshop The core organizing committee has been established. The workshop will be held in October 20-23, 2014 in Madison, WI USA. JMA will show the preliminary results of the testbed in the workshop. Expectations of discussion related to selection of volcanic ash cases and the methods of validation and intercomparison. In the testbed, JMA would like to implement the methods standardized in this workshop.

Japan Meteorological Agency, May 2014 Coordination Group for Meteorological Satellites - CGMS Call for the new participants to the testbed Call for New participants to the testbed from organizations who develops volcanic ash retrieval algorithm

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