Wenchuan Earthquake International EO Data Assistance Grid Prof. Guoqing Li, CEODE, CAS Present to WGISS26 ， Boulder, 23rd, Spet, 2008

Wenchua n, China 02:28 pm, May 12, 2008 Huge Earthquake, Wenchuan, Sichuan, China

At the very beginning time of this event, Many International Space Agencies shown their will to give EO data assistance to China. WGISS played important role in calling for such activities within very short time.

Every day, there are lot of EO data transferred to China from oversea space agencies. Because of less communication and regulation to exchange such data Different sensors (> 10) Different production level Different format Different package methods and assistant files (metedat) Different POCs in China Different way to storage (OS, Software,Network,CA)

Agency Disaster Country Agency Contribution countries POC FTP Contract ? Inter-Agency Formal Relationship Personal level Informal Relationship Trust Disaster Data user Disaster Country It’s impossible to reach a contract between agencies for the emergency disaster event within some days It’s possible to transfer the necessary data, however, it is not a formal way to manage such data

Agency Contribution countries Agency Contribution countries Agency Disaster Country Agency Disaster Country It is diffcult for the user to know from where to find which kind of data. User

Agency Contribution countries Agency Contribution countries Agency Disaster Country Agency Disaster Country Clearinghouse Good idea, however, it is impossible to build it within some days, and it is also very expensive. …..Who does operate it?

Agency Contribution countries Agency Contribution countries Agency Disaster Country Agency Disaster Country Next generation technologies --- grid based easy Portal It is fast construction method! It is a very cheap way! It can overcome the CA problem

interested duration for data using is only two weeks!

Principle of disaster data assistant --- The most important principle is fast!~ Very short interested duration for data using. –fast deploying the data service system (within days!) Any data can be useful to help find the information –welcome any data, paying less attention to the format/data level/metadata/sensor/service methods –fast automatic search system to locate the suitable data for application character and process tools.

Condition in this case The main way to access such data is FTP sets –No metadata –No definition of directory and file names –No uniform access URL –No suitable authority control

It will be a big work to update it to be traditional Catalogue System CEODE initiated two team to work for this work at same time –One with traditional method –One with grid method Result: –Traditional team : 20 days, big budget –Grid team: 2 days, no budget

The technical approach of Grid resolution. Data resource reconstruction ( logically, not physically ) –Based on SIG data grid node framework, using three standard SIG data node services »SIG data query service »SIG data access service »SIG data viewer service (not used this stage) Data develop service is same as SIG data develop service User portal modified from SIG data portal Compatible with standard web service and OGC services

SIG architecture SIG Processing Node SIG Data Node SIG Mapping Node SIG Task Engine Grid data Raw data service User Portal SIG Developing Service SIG Grid management components SIG Data Resource SIG Data Resource

Wenchuan Earthquake International EO Data Assistance Grid FTP Metadata Engine Metadata DataGrid Middleare Query WS Access WS Portal FTP Metadata Engine Metadata DataGrid Middleare Query WS Access WS query update downlaod SIG data node Data resource

FTP Metadata Engine Metadata DataGrid Middleare Query WS Access WS Portal query update downlaod Modify the metadata match XML Half-hand work every day It can be updated as automatic tools Few words and pictures to adjust How to build it from SIG ? Developed with one time

Original ftp structure

Original Grid Platform

Wenchuan Earthquake International EO Data Assistance Grid

New portal

Capability of this system Query with sensor, data provider, data format, data level, band type, geo-area, acquire time parameters Return listed with uniformed format Access with uniformed interface, with original network protocal (Via FTP) Access original metadata file Access quicklook image Access data file

This work start from the morning of May 22 and closed at the later morning of May 24 All work lasted 2 days With the following tools development, this work is hope to finish within one day. This service has been registered in GEOSS

Additioanl Application of This Technical Approche --GISTDA ASIAES grid portal

ASIAES Grid Portal ASIAES is the project supported by GISTDA, with target as disaster EO data clearinghouse in ASIEN Area The basic founctions of ASIAES system are metedata registartion and data search. The techinical mode is web-service. The official protal is based on local metadata clearinghouse. Our work is trying to add existing ASIAES data resource into Grid portal.

DataGrid Middleare Query WS Access WS Grid Portal Metadata searching W-S DataGrid Middleare Query WS Access WS ASIAES Resource Metadata W-S Adptor Invoke W-S Adptor Invoke W-S FTP Metadata Engine Metadata query update downlaod

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