tsunami - oceanobs'09 · products (i.e. tsunami induced currents) g, simulated tsunami maximum...
TRANSCRIPT
TsunamiA Plenary Presentation for
Ocean Observations 2009Eddie Bernard
USA/NOAA
ian Ocean - Kenneth Jarrott & Rick Bailey
ific Ocean- Filomena Nelson
Atlantic and Mediterranean Sea - Stefano Tinti
ibbean Sea- Christa von Hillebrandt
bal - Peter Koltermann
A- Christian Meinig, Vasily Titov, hleen O’Neil, Robert Lawson
OutlineWhat is a tsunami?
History of Tsunami Warning Systems
Existing Tsunami Warning Capabilities
Summary & Future Challenges
OutlineWhat is a tsunami?
History of Tsunami Warning Systems
Existing Tsunami Warning Capabilities
Summary & Future Challenges
Stages of Tsunami Evolution
Example
torical Tsunami Sources: 2000 B.C. to Pres
NOAA’ N i l G h i l D C
OutlineWhat is a tsunami?
History of Tsunami Warning Systems
Existing Tsunami Warning Capabilities
Summary & Future Challenges
History of Tsunami Warning System
1946 Alaska Tsunami: Reaction
Seismic detection of large earthquakes:
Results in saving lives,
but over-warning 90% of time for distant tsunamis
5 6 7 8 9 10-4
-3
-2
-1
0
1
2
3
4
Tsu
nam
i Int
ensi
ty
History of Tsunami Warning System960 Chilean Tsunami: Reaction
Seismic detection of large earthquakes
+ tide gauge observations of tsunami:
Results in saving lives,
but over-warning 75% of time for distant tsunamis
p gMeasurements of Tsunamis
DART IIy technologies:
directional coms
unami Detection Algorithm
ckup systems
orldwide deployable
ug-in to existing warning center astructure
tional MET sensor
History of Tsunami Warnings004 Indian Ocean Tsunami: Reaction
Seismic detection of large earthquakes
+ deep ocean detection of tsunami
+ tide gauge verification:
Results in elimination of over-warninfor distant tsunamis
and
Provides forecasts for distant and loca
JAMSTEC
ERI, Univ. Tokyo
JMA
JAMSTECJMA
JMA
2 Cabled Deep-Ocean Tsunami Detecto
OutlineWhat is a tsunami?
History of Tsunami Warning Systems
Existing Tsunami Warning Capabilities
Summary & Future Challenges
November 15, 2006 Kuril Is. Tsunami
Forecast
Observations
Tsunami Warning
×
0:13: 25.0 Earthquake origin time
0:13: 29.3 (4.3 s) First earthquake location/magnitude
0:14 (1.5 min) Tsunami Advisory was issued
0:16 (2.5 min) Tsunami was observed at Kashiwazaki.
Kashiwazaki (6U):lead time 0 s
Nagaoka (6U):lead time 3 s
Ii (6U)
Courtesy of Kenji Satake, University of Tokyo
g y
Global Tsunami Warning System:Interoperable Regional Efforts
yTsunami Warning Systems have evolved into regional end-to-end systems with global standardsand guidelinesReal Time Tsunami Forecasts are now possible fodistant and local tsunamisFuture challenges:Complete Global Warning System Through Both
· Interoperable Regional Tsunami Warning Syste· Ongoing Outreach and Educational Programsand…….· Sustain Support Through Public Safety and NewProducts (i.e. tsunami induced currents)
g ,simulated tsunami maximum amplitude
g ,simulated tsunami maximum currents
g ,simulated tsunami
