Transcript No Slide Title - Project IDA - University of California, San Diego

Proposal
to site a seismic station
on
Diego Garcia
Peter Davis
Project IDA
Scripps Institution of Oceanography
University of California, San Diego
Project IDA’s Goals:
• to develop high quality seismic data
acquisition equipment
• to deploy systems globally at 2000
km spacing
Project IDA Funding
NSF
Green
Foundation
IRIS
UCSD
IDA
AFOSR
USGS
Why select Diego Garcia?
• geographic position
IRIS/IDA Seismic Network
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
IRIS Global Seismic Network
Why select Diego Garcia?
• geographic position
• seismic activity in region
How are the data used?
• seismological studies
How are the data used?
• seismological studies
• test ban treaty monitoring
How are the data used?
• Seismological studies
• test ban treaty monitoring
• tsunami warning
What equipment is needed?
• seismometers
• associated electronics
• telecommunications devices
• power (if necessary)
What site characteristics are
necessary?
• removed from cultural noise
• prefer leeward side
• far from coast and breaking reefs
• access to power, communications
What infrastructure is
required?
• seismographic vault
What infrastructure is
required?
• seismographic vault
• power
– 0.5 kW exclusive of air conditioning
– 2.0 kW to climate control recording room
What infrastructure is
required?
• seismographic vault
• power
• communications
– TCP/IP via a serial circuit or LAN port
– station produces 2 kbs continuously
What does installation
involve?
• Personnel
– one visit by IDA administrator lasting < 7 days
– one visit by two IDA field engineers lasting 714 days
What does installation
involve?
• Personnel
• Shipping:
– weight of equipment 1400-1600 lbs
– usually shipped by air freight
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