Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu...
-
Upload
roy-baldwin -
Category
Documents
-
view
219 -
download
0
Transcript of Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu...
![Page 1: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/1.jpg)
Developing monitoring Developing monitoring capability of a volcano capability of a volcano observatoryobservatory
Esline Garaebiti, Sylvain TodmanVanuatu Meteorological and Geohazards Department
Gill Jolly, Art Jolly, Steve Sherburn, Craig Miller,Nicolas Fournie,
Brad ScottGNS Sciences, New Zealand
![Page 2: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/2.jpg)
Vanuatu General Information
Vanuatu is a group of 84 islands (most of them are inhabited) within 12,189 sq km land area
Around 250,000 people (2009 census)Tropical area: Average of one cyclone
every yearBelongs to the “Pacific Ring of Fire”
Currently 6 active volcanoesAverage of one earthquake of M 7.0
every yearAverage of one significant tsunami
(wave >1m) every 10 years
![Page 3: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/3.jpg)
IRD Nouméa, 2004
Vanuatu General Tectonic Context
Pacific plateIndo-Australian plate
![Page 4: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/4.jpg)
CRUST
MANTLE
Vanuatu General Tectonic Context
![Page 5: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/5.jpg)
![Page 6: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/6.jpg)
![Page 7: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/7.jpg)
Vanuatu Volcano Monitoring Network
Volcano monitoring network have existed, in: Ambae (1997-1998) Ambrym (1998-2001)Tanna (1992 to January 2009)
Funded and installed by IRD
Monitoring system on the Yasur volvano, Tanna island
![Page 8: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/8.jpg)
Research project ARC-VANUATU, since 2008Data collected sent to Noumea or France
processing Analysis
Volcano-seismic network for research, 2008
Pelletier, 2008
![Page 9: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/9.jpg)
3 portable seismographs,
May 5th to 28th 2010
Taranu F., 2009
Volcano monitoring network on Ambrym, Geohazards Vanuatu-Rabaul Volcano Observatory, 2009
![Page 10: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/10.jpg)
Since November 2009
Network upgraded in July/August 2010
3 sites, one connected to Telecom Hub for Real time data transmission to main office
Volcano monitoring network, Gaua , Geohazards Vanuatu- GNS Science ,NZ, 2010
![Page 11: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/11.jpg)
Data Analysis From 1992 to 2009, Yasur volcano monitoring
systemTransmission via satellite Argos to Paris, dProcessing and analysis in Parisaccessed via Internet as number of counts
![Page 12: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/12.jpg)
Since May 2009, data collected manually, first analysis by SWARMMainly focus on the identifications and numbering of events
Data Analysis (cont.)
![Page 13: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/13.jpg)
Since February 2010, Improvement of data processing with daily volcano-seismic plots
Volcano Data Analysis today: Processed data
April 4th 2010, Gaua volvano
Daily seismogram
![Page 14: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/14.jpg)
- Amplitude- Spectrogram
Analyzed data
SSAM/RSAM analysis of GAUA volcano, June 2010: significant tremor recording early June 2010
![Page 15: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/15.jpg)
Tremor Curve Gaua, July 2010
S-P time difference, July 2010
eS-P curve
Analyzed data
![Page 16: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/16.jpg)
Vanuatu portable seismograph project (according to the the MVN concept)
Following Gaua volcano activity, sept 29th 2010
Project proposed by Geohazards and GNS for NZAID funding
Three portable seismograph
Set for local telemetryTheir installation on Gaua
![Page 17: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/17.jpg)
Training of staffs on the Use of instruments and data analysisTwo sessions in
data analysis (February/ August 2010)
One session on equipment deployment (July/August 2010)
Vanuatu portable seismograph project (cont.)
![Page 18: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/18.jpg)
Ambae Volcano activity response, May 2010
Deployment of a portable seismographData analyzed and processed
![Page 19: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/19.jpg)
Other assistance from GNS in volcano monitoring
OMI image and So2 flux limited to each volcano
![Page 20: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/20.jpg)
Vanuatu Monitoring Network today
![Page 21: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/21.jpg)
Interpretation
![Page 22: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/22.jpg)
2. Geo-Hazards Website: Volcanic Live Information
Geohazards Volcanic Updated Bulletin
Current Volcanic Alert Level Interactive Map.
Following Vanuatu Volcanic Alert Level Table (VVAL)
![Page 23: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/23.jpg)
Real-Time Data Transmission Framework
DigitizerDigitizer
Seismograph
Remote Seismic Station
Data Transmission Framework
- ADSL: Complete continuous data transmission: Real-Time
- Government Network: Partial continuous data transmission: Near Real-Time
- Mobile Phone Network: - CSD (connection time, 9600bps), very light pre-processed materials : Near Real-Time
- GPRS/3G (data transferred, up to 72.4Kbps), pre-processed materials : Near Real-Time
End user
Basic Monitoring Information is managed, even with the smallest option
Daily m
on
itorin
g m
aterials <
1M
B
![Page 24: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/24.jpg)
How can the data be pre-processed on site ?
DigitizerDigitizer
Seismograph
Remote Seismic Station
Installation of a ‘green’ PC inside the remote station
How can the connection be managed from the station?
![Page 25: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/25.jpg)
Installing ‘green’ computer on-site advantages
DigitizerDigitizer
Seismograph
Remote Seismic Station
- Connection control (quantity of data, time connected)- Very cheap- Intel Atom processor is powerful enough to compute data- Power-efficient (~6w for the FitPC)- Backup storage- Can manage other equipments for monitoring purpose such as:
- Camera- GPS- Meteorological instruments …
CameraGPS Meteo
YET TO BE SET UP/CONNECTED
![Page 26: Developing monitoring capability of a volcano observatory Esline Garaebiti, Sylvain Todman Vanuatu Meteorological and Geohazards Department Gill Jolly,](https://reader035.fdocuments.in/reader035/viewer/2022062409/56649ec85503460f94bd4a8f/html5/thumbnails/26.jpg)
Conclusions
Collaborations between institutes is essential for progress of small island states
Progress require Perseverance and will to drive till accomplishment
Ready to integrate telecommunication system
for data transmission and accurate information flow
Research project in view with local network on Gaua