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Proposal to site a seismic station on Diego Garcia Peter Davis Project IDA Scripps Institution of Oceanography University of California, San Diego.

Published byHarold Gilmore Modified over 9 years ago

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Presentation on theme: "Proposal to site a seismic station on Diego Garcia Peter Davis Project IDA Scripps Institution of Oceanography University of California, San Diego."— Presentation transcript:

1 Proposal to site a seismic station on Diego Garcia Peter Davis Project IDA Scripps Institution of Oceanography University of California, San Diego

2 Project IDA’s Goals: to develop high quality seismic data acquisition equipment to deploy systems globally at 2000 km spacing

3 Project IDA Funding NSF IRIS AFOSR Green Foundation USGS UCSD IDA

4 Why select Diego Garcia? geographic position

5 IRIS/IDA Seismic Network

6 IDA British sites: ESK - Eskdalemuir, Scotland; British Geological Survey ASCN - Ascension Island; British Broadcasting EFI - East Falkland Island; Falklands Landholdings HOPE - South Georgia Islands; British Antarctic Survey SHEL - Island of St Helena; Government of St Helena

7 IRIS Global Seismic Network

8 Why select Diego Garcia? geographic position seismic activity in region

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11 How are the data used? seismological studies

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14 How are the data used? seismological studies test ban treaty monitoring

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16 How are the data used? Seismological studies test ban treaty monitoring tsunami warning

17 What equipment is needed? seismometers associated electronics telecommunications devices power (if necessary)

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20 What site characteristics are necessary? removed from cultural noise prefer leeward side far from coast and breaking reefs access to power, communications

21 What infrastructure is required? seismographic vault

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26 What infrastructure is required? seismographic vault power – 0.5 kW exclusive of air conditioning – 2.0 kW to climate control recording room

27 What infrastructure is required? seismographic vault power communications –TCP/IP via a serial circuit or LAN port –station produces 2 kbs continuously

28 What does installation involve? Personnel –one visit by IDA administrator lasting < 7 days –one visit by two IDA field engineers lasting 7- 14 days

29 What does installation involve? Personnel Shipping: –weight of equipment 1400-1600 lbs –usually shipped by air freight

30 What ongoing maintenance is required? one hour/week for routine operations 20 hrs/year non-routine maintenance site visits by IDA engineers < 0.5/yr

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