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The CENALT. Key dates of the French tsunami warning centre project November 2005 : first international meeting on tsunami alert systems in the Mediterranean.

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Presentation on theme: "The CENALT. Key dates of the French tsunami warning centre project November 2005 : first international meeting on tsunami alert systems in the Mediterranean."— Presentation transcript:

1 The CENALT

2 Key dates of the French tsunami warning centre project November 2005 : first international meeting on tsunami alert systems in the Mediterranean April 2006 : CEA is requested by the ministry of the interior to implement a tsunami warning centre in the Mediterranean November 2007 : France announces during ICG IV its decision to establish a warning centre for the Western Mediterranean 22nd September 2009 : signature of the agreement between the ministry of the interior and the ministry of sustainable development and CEA, SHOM and CNRS, tasking them to develop and implement the tsunami warning centre 1st July 2012 : tsunami warning centre is operational

3 FORMATION CENALT NOVEMBRE 2011 The CENALT : -Warns French civil security authorities, within fifteen minutes of a potentially tsunamigenic event occurring in the West Mediterranean Sea or in the North Eastern Atlantic Ocean, transmitting pertinent parameters of the event -Advises within 15 minutes NEAM candidate tsunami watch providers, national tsunami warning centres and tsunami focal points, -Sends confirmation/ cancelation messages: latency related to the tide gauge data availability The CENALT : national mandate and international objectives

4 Upgrade of tide gauges (SHOM). Upgrade of 34 stations equipped with high sampling rate and real- time transmission Direct connection to the CENALT through VPN 10 stations on GTS All data available on IOC website

5 Secured operational network Optimal cooperation between seismic station network operators Cooperation in progress for tide gauge network operators COGIC Météo France GTS GFZ INM ROA UCM IGN IPMA INGV CTBTO Private telecommunication network for data transmission and message dissemination

6 CENALT IN OPERATION Monitoring Systems Data processing detection, location magnitud Tsunami arrival time and warning level CENALT Bruyères-le-Châtel Validation, messages dissemination By expert on duty 24h/24 Civil Protection Tsunami alert to the public beaches, harbours evacuation Seismic Sea leval 15 mn10 mn5 mn2 mn60 mn OPERATIONAL SINCE 1 JULY 2012

7 Sea levelGUITAR Record, Display Tsunami measurements Calypso Real-time Modeling Cassiopée Scsnarii Agregation SeismologySEISCOMP3 Détection Localisation Magnitude Échange de données Message DisseminationMARMOT (ligne COGIC, GTS, fax, email,) Communication Tests, exercises Tsunami arrival time Detection capacitiesMASCARETRAPPORT_8H Seismic and sea level monitoring Alert Alert going on AlertReporting Message 15mn Supplementary Message End of Message Supplementary Message Tsunami Mesaurement T0+8h Report T0+2j Report Initial Message CENALT : SOFTWARE PROCESS

8 The CENALT, automatic detection and interactive processing Earthquake detection in real time: time origin, association, automatic location, magnitude calculation - Data and communications flow - Archiving of raw data - Data format conversion Continuous sea-level data reception Historical events database Continuous sea-level signal reception (Atlantic ocean, Channel, Mediterranean sea)

9 Estimation of tsunami arrival times Map of arrival times for a given event

10 Network capability monitoring Seismic detection delayEvent location accuracy Sea level information delay

11 * From July 1st to October 19, 2012 CENALT Operation since July 1 st 2012

12 1.Earthquake Detection 280 events* in the NEAM region 2240 events* at a global scale 2.Tsunami Detection 3.Data analysis, threat evaluation 280 events* in the NEAM region 2240 events* at a global scale 4.Monitoring of the whole system capability 5. Elaborate and transmit alert and test messages 11 routine communication tests (fax, email and GTS) 1st message received in less than 2 minutes MONITORING ALERT

13 13 1st International Tsunami Exercise in the European region

14 Intergovernmental Coordination Group for the Tsunami Early Warning and Mitigation System in the North Eastern Atlantic, the Mediterranean and connected Seas (ICG/NEAMTWS) Portugal Italy Turkey KOERI France CENALT Five Candidate Tsunami Watch Provider (CTWP) Achievement 2012 3 National Tsunami Warning Centers NTWC /CTWP Operating Greece NOA

15 FORMATION CENALT NOVEMBRE 2011 Level of warning YELLOW ORANGE RED FRANCE INTERNATIONAL

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