Wenchuan Earthquake International EO Data Assistance Grid

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

2. 02:28 pm, May 12, 2008 Huge Earthquake, Wenchuan, Sichuan, China Wenchuan, China

3. 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.

4. 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)

7. Contract ? Agency Disaster Country Agency Contribution countries Inter-Agency Formal Relationship Trust Disaster Data user Disaster Country POC POC Personal level Informal Relationship 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 FTP

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

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

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

11. interested duration for data using is only two weeks!

12. 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.

13. 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

14. 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

15. 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

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

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

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

19. Original ftp structure

20. Original Grid Platform

21. Wenchuan Earthquake International EO Data Assistance Grid

22. New portal

25. 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

26. 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

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

28. 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.

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

31. Comments and questions?