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Role of RTH Beijing in exchanging tsunami-related information and Status of the GTS system at RTH Beijing National Meteorological Information Center, CMA March 16, 2005, Jakarta 1 Outline • Requirements analysis • Role of RTH Beijing in exchanging tsunami-related information • Status of the GTS system at RTH Beijing 2 Requirements analysis 3 • Functions of the TEWS • Monitoring seismic and tidal stations throughout the India Ocean • Evaluating potentially tsunamigenic earthquakes • Disseminating tsunami warning information • Key components of the TEWS • Observation network • Monitoring and evaluating centers for potentially tsunamigenic earthquakes • Communication network for collecting, exchanging and disseminating tsunami-related information in the India Ocean 4 Information types, formats and transmission systems • Meteorological observations, products • Oceanic observations, products • Seismic observations, products • • ASCII • observations • Internet • warnings • Binary data formats • products • Graphical formats Both real-time data • products and non real-time • warnings data • GTS links • Local leased lines • Satellite System • HF Radio • Commercial radio and TV channels • … 5 Data flow in the TEWS-IO Meteorological Observation Network Oceanic Observation Network Tsunami Warning System GTS/DCP/Internet Observations Productions Warnings GTS/DCP/Internet Observations Observations Observations GTS Seismic Observation Network GTS/Leased line/Internet/ Satellite based broadcast GTS Centers (NMHSs in WMO Member Countries ) Warnings Observations Productions Warnings Intranet Leased line Concerned Services - Oceanic service - Seismic service - … Warnings Internet Disseminators - Governments - Public Internet Disseminators 6 Operational rules needed for the tsunami-related information exchange • Data codes – Format of observations (?) – Format of warnings (T1T2=WE) – Format of products (?) • Communication means and protocols • Other rules – Time delays – Request/reply for Tsunami data 7 Data codes • Potential problem on sharing data among different services and organizations • Suggested solution • Using GTS codes to exchange tsunami information among the different countries • Developing the abilities of translating tsunami information between the GTS codes and the special formats which are used by the other services or organizations at the concerned GTS centers 8 Communication means and protocols • Communication means • Data collection/Data exchange – GTS/Leased lines/Internet • Data distribution – • GTS/Satellite based broadcasting/Internet Protocols • TCP/IP • File based transmission • Transmission procedures • GTS based transmission – Requirements: upgrading the current asynchronous circuits and X.25 circuits in concerned GTS centers to IP links – WMO FTP • Internet based transmission – FTP – E-mail – Web data Ingest 9 Role of RTH Beijing in exchanging tsunami-related information 10 • Collecting tsunami-related information from other GTS centers via GTS and Internet • Collecting tsunami-related information from other concerned services (e.g. State Oceanic Service, China Earthquake Administration) in China via local leased lines • Translating tsunami information between GTS codes and the special formats which are used by the other services in China • Disseminating tsunami-related information to other GTS centers via GTS, CMA’s PCVSAT broadcasting system, and Internet • Disseminating tsunami-related information to other concerned services (e.g. State Oceanic Service, State Seismic Service) in China via local leased lines 11 Status of the GTS system at RTH Beijing 12 The GTS links at RTH Beijing GTS link SPEED (Kbps) CIRCUIT TYPE PROTOCOL Beijing-Offenbach 48/48 FR (RMDCN) FTP Beijing-Tokyo 48/48 FR (RMDCN) TCP sockets 8/8 FR (RMDCN) FTP 32/32 FR TCP sockets Beijing-Bangkok 9.6 Leased Line X.25 PVC Beijing-New Delhi 9.6 Leased Line X.25 PVC Beijing-Ulan Bator 14.4 Leased Line FTP Beijing-Pyongyang 75Baud Leased Line ASYNC Beijing-Hanoi 75Baud Leased Line ASYNC Beijing-Moscow Beijing-Seoul REMARKS Planned move to FTP over FR 13 The GTS System at RTH Beijing FTP E-mail DMZ Internet Web Server Cisco PIX Firewall Back End • IBM P650 Offenbach RMDCN Routers Cisco 2620 (HSRP) IP over FR GTS Router Cisco 3640 IP over FR Tokyo Moscow Cisco PIX Firewall • Duplicated system • UNIX based Front End X.25 circuits • AlphaServer ES40 • Duplicated system • UNIX MSS Seoul Bangkok New Delhi Router Asynchronous circuits Supporting FTP, TCP sockets, X.25, Asynchronous Hanoi Pyongyang Ulan Bator 14 Daily traffic on GTS links GTS link Inbound (Bytes) Outbound (Bytes) Beijing-Offenbach 198M 1.2M Beijing-Tokyo 35.6M 2.5M Beijing-Moscow 11.3M 1M Beijing-Seoul 7.9M 2.8M Beijing-Bangkok 712K 890K Beijing-New Delhi 896K 1.2M Beijing-Ulan Bator 13.6K 586K Beijing-Pyongyang 20K 685K Beijing-Hanoi 25K 589K 15 16 17 18 19 20 21 22 23 24 In addition to the GTS links • The data exchange between Beijing and Kazakhstan has been started from 2004. • Internet • E-mail based data exchange • Data exchanged: observations 25 Future Plans • Beijing-New Delhi GTS link – Being upgraded in March – The new link: 8/8kbps FR link (RMDCN) – Data exchange: FTP • Suggestions on Beijing-Bangkok GTS link – To better support the exchange of tsunami warnings and information, the Beijing-Bangkok circuit should be upgraded from X.25 to TCP/IP. 26 Conclusions 27 • The current GTS, with improvement in circuit capacity and communication protocols, can serve as a backbone for cross boundary tsunami data exchange.. • The Internet can be used for exchanging data and products. – Cost effective – Supplement to GTS • The satellite-based broadcasting systems can be used for data dissemination – Supplement to the low speed GTS links – Improving the data collection in small NHMSs • RTH Beijing can support tsunami data exchange both via GTS and over Internet 28 Thank you! 29