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GASB - Alder Springs, CA, USA |
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Construction at GASB |
2005/09/22 00:00:00 - Present
Latitude: 39.6547
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GASB vault under construction |
Location |
Geology |
Vault Conditions
Instrumentation |
Network |
Noise Characteristics |
Data Availability
- Location:
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The site is located at Alder Springs, CA, USA.
In addition to the UC Berkeley broadband and strong-motion sensor, this area is home to a short-period sensor operated by the California Department of Water Resources. There is also a nearby weather station
Support for GASB was provided by National Tsunami Hazard Program and the Governor's Office of Emergency Services as part of the California Integrated Seismic Network.
- Geology:
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TBD
- Vault/Borehole conditions:
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The instruments are located in a steel and
concrete vault benched into a gentle hillside and
covered with soil overburden.
The concrete pier is covered with 4" of
insulation on the sides and 8" of insulation on
the top. The datalogger and supporting
equipment are in an adjacent room.
- Instrumentation:
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Sensor Datalogger Start Date End Date SEED Channels Location AntennaCurrent Q330HR-GFE 2011/06/16 Present VE? 00 ClockPhase Q330HR-GFE 2011/06/16 Present LC?,VC? 00 ClockQuality Q330HR-GFE 2011/06/16 Present LC?,VC? 00 InputVoltage Q330HR-GFE 2011/06/16 Present VE? 00 Kinemetrics FBA ES-T Accel. (2 g max 10 v/g) Q330HR-GFE 2011/06/16 Present HN? 00 Streckeisen STS-2 VBB Tri-Axial Seismometer Q330HR-GFE 2011/06/16 Present BH?,HH?,LH?,VH? 00 SystemCurrent Q330HR-GFE 2011/06/16 Present VE? 00 SystemTemperature Q330HR-GFE 2011/06/16 Present VK? 00 VCOValue Q330HR-GFE 2011/06/16 Present VC? 00 - Network:
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BK (Berkeley Digital Seismic Network)
- Noise Characteristics:
- Network PDF Noise Analysis Plots
- Data Availability:
- BDSN waveforms and associated metadata are available at the
Northern California Earthquake Data Center (NCEDC).
- Map of BDSN stations
- Table of BDSN stations
- BK Information Directory, including
- List of station locations
- List of available channels
- Instrument Response
- Information on Quanterra Timing Errors
- Information on Quanterra 4120 FIR Filter changes - 6/30/2003
- Information on BH sampling rate change - 06/15/2004
- View digital seismograms
Several tools provide access to SEED format data at the NCEDC, both in terms of querying the archives and allowing data requests.- Querying the archives
- Requesting data by channel and time
- Requesting data by event
Help on using these tools is available.
