the cenalt. key dates of the french tsunami warning centre project november 2005 : first...
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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
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
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
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
Secured operational network
Optimal cooperation between seismic station network operatorsCooperation in progress for tide gauge network operators
COGICMétéoFrance
GTS
GFZINMROAUCM
IGN
IPMA
INGVCTBTO
Private telecommunication network for data transmission and message dissemination
CENALT IN OPERATION
Monitoring Systems
Data processing detection, location
magnitudTsunami arrival time
and warning level
CENALTBruyères-le-Châtel
Validation, messages dissemination
By expert on duty 24h/24
Civil Protection
Tsunami alert to the public beaches, harbours evacuation
SeismicSeismic
Sea levalSea leval
15 mn10 mn5 mn2 mn 60 mnOPERATIONAL SINCE 1 JULY 2012
Sea levelGUITARGUITAR
Record, DisplayTsunami measurements
Calypso
Real-time Modeling
Cassiopée
Scsnarii Agregation
SeismologySEISCOMP3SEISCOMP3
DétectionLocalisationMagnitude
Échange de données
MessageDissemination
MARMOTMARMOT
(ligne COGIC, GTS, fax, email,)
Communication Tests,exercises
Tsunami arrival timeDetection capacities
MASCARETMASCARETRAPPORT_8HRAPPORT_8H
Seismic and sea level
monitoringAlertAlert Alert going onAlert going on AlertAlert
Reporting Reporting
Message15mn
SupplementaryMessage
End of Message
SupplementaryMessageTsunami
Mesaurement
T0+8hReport
T0+2jReport
InitialMessage
CENALT : SOFTWARE PROCESS
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)
Estimation of tsunami arrival timesMap of arrival times for a given event
Network capability monitoring
Seismic detection delayEvent location accuracy
Sea level information delay
* From July 1st to October 19, 2012
CENALT Operation since July 1st 2012
CENALT Operation since July 1st 2012
1. Earthquake Detection 280 events* in the NEAM region
2240 events* at a global scale
2. Tsunami Detection
3. Data analysis, threat evaluation280 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
1st International Tsunami Exercise in the European region
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
TurkeyKOERI
FranceCENALT
Five Candidate TsunamiWatch Provider (CTWP)
Achievement 2012
3 National Tsunami Warning Centers NTWC /CTWP
Operating
GreeceNOA
FORMATION CENALT NOVEMBRE 2011
Level of warning
YELLOW
YELLOW
ORANGE
RED
FRANCEINTERNATIONAL