CEOS Precipitation CEOS Precipitation ConstellationConstellationJAXA StatusJAXA Status

Masayuki Ohta Masayuki Ohta JAXA Earth Observation Research CenterJAXA Earth Observation Research Center

September 23, 2008September 23, 2008WGISS-26 in BoulderWGISS-26 in Boulder

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CEOS precipitation constellation activityJointly led by NASA & JAXA, with participation of various organizations.

The 2nd CEOS PC workshopHeld in Japan, June 5-6

Established 2008 Work PlanFinalized Implementation Plan

GPM envisioned to be a realization of the CEOS PC.

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JAXA GPM statusGPM/Core DPR development status

DPR development schedule is base on July 2013 launch.Preliminary Design Review (PDR)

DPR system PDR : Held in Dec.-Jan. 2008JAXA final PDR : Held in Jan.-Feb.2008Delta PDR for some components which design changed after system PDR : Jun. 2008

Critical Design Review (CDR) Components CDR : Dec.2008

Science ApplicationGSMaP(Global Satellite Mapping of Precipitation) has been already released using multi-satellite data.

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Global Rainfall Map in NRThttp://sharaku.eorc.jaxa.jp/GSMaP/index.htm

Started November 14, 2007.hourly global rainfall maps in near real time (about four hours after observation) is available.

Data: TRMM TMI, Aqua AMSR-E, DMSP SSM/I and GEO IR

Other Contents:Latest 10 hr Browse images24hr animationKMZ files (Google Earth)

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GSMaP on Google Earth

GSMaP is hourly rainfall map.4 hours after observation;

3 hours : data collection1 hour : data processing

The more available efficient data is, the better data accuracy is.

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Prospect for merged productThe more available efficient data is, the better data accuracy is.“Efficient” means

Precipitation data increaseQuick collection/access dataEasy to use

etc.

Gathering meaningful data of PCHope CEOS to contact China and Russia (Roshydromet).

To understand each organization’s methodsData exchange policyData accessibilityData and product format, contents, meta data for handling multi-satellite data etc.

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About GDaWG (GPM Data Working Group) Porpose

Concentrate the expertise of potential GPM data and data systems experts Discuss potential partner approaches, concerns, tools and schedulesCoordinate, as possible, data formats and metadata itemsIdentify major issues, concerns and action items pertaining to data and data system for GPM partnershipCoordinate schedules, needs and reviews as requiredGet to know personnel involved with data and data systems at various partner organizations and begin the establishment of personal interactionsProvide technical study and guidance under the auspices of the Joint Precipitation Science Team and the GPM governing body, when established

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GDaWG status GDaWG

Meetings:The 1st GDaWG meeting was held in College Park Maryland on Feb 19-20, 2003 The 2nd GDaWG meeting was held in Tokyo in February 2004The GDaWG session was held in the 7th GPM International Workshop in December, 2007.

Opportunity for the 3rd GDaWG meetingThe 8th GPM International Planning WorkshopPlace: ParisDate: May-June 2009

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GDaWG status Website:

Prepared the GDaWG website to promote personal connection and to share the useful information for data working group activities.

http://www.eorc.jaxa.jp/GPM/DataWG/gdawg/index.html

Developed the GDaWG operating procedures (GOP) for GDaWG website

CharterTo clarify the definition and our role.

Non-governanceFramework Relationship with CEOS-PC

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Request to WGISS from CEOS/PC

We would like to have recommendations/suggestions for technical issues for data sharing, data exchange format, algorithm codes, tools, file naming, logical formats, and others.

If WGISS already have discussed and list-uped issues, we want the list and general rules or approach methods for each issues of its list.