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HAST - UC Hastings Preserve, Carmel Valley, CA, USA
- Location:
-
The site is located at the Hastings Biological Field Station
of the University of California. Hastings is located in
the Santa Lucia mountain range in Monterey County, California.
This station is a collaboration among Hastings, the Berkeley
Seismological Laboratory, and the
USArray component of the
Earthscope program.
The station was installed by USArray personnel in July 2004 and is
sending data to the Array Network Facility and to BSL.
- Geology:
-
TBD
- Vault/Borehole conditions:
-
The HAST installation is based on the
USArray
vault design.
- Instrumentation:
-
| Sensor | Datalogger | Start Date | End Date | SEED Channels | Location |
| AntennaCurrent | Q330 | 2006/02/02 | 2007/09/02 | VE? | |
| AntennaCurrent | Q330 | 2008/03/20 | Present | VE? | |
| ClockPhase | Q330 | 2006/02/02 | 2007/09/02 | LC? | |
| ClockPhase | Q330 | 2007/03/13 | 2007/09/02 | VC? | |
| ClockPhase | Q330 | 2008/03/20 | Present | LC?,VC? | |
| ClockQuality | Q330 | 2006/02/02 | 2007/09/02 | LC? | |
| ClockQuality | Q330 | 2007/03/13 | 2007/09/02 | VC? | |
| ClockQuality | Q330 | 2008/03/20 | Present | VC?,LC? | |
| InputVoltage | Q330 | 2006/02/02 | 2007/09/02 | VE? | |
| InputVoltage | Q330 | 2007/03/13 | Present | VF? | |
| InputVoltage | Q330 | 2008/03/20 | Present | VE? | |
| Kinemetrics FBA ES-T Accel. (2 g max 10 v/g) | Q330 | 2006/02/02 | Present | HL? | |
| Kinemetrics FBA ES-T Accel. (2 g max 10 v/g) | Q330 | 2006/03/13 | Present | LL?,BL? | |
| Streckeisen STS-2 VBB Tri-Axial Seismometer | Q330 | 2006/02/02 | Present | BH?,HH?,LH?,VM? | |
| Streckeisen STS-2 VBB Tri-Axial Seismometer | Q330 | 2007/03/13 | Present | VH?,UH? | |
| SystemCurrent | Q330 | 2006/02/02 | 2007/09/02 | VE? | |
| SystemCurrent | Q330 | 2008/03/20 | Present | VE? | |
| SystemTemperature | Q330 | 2006/02/02 | Present | VK? | |
| VCOValue | Q330 | 2006/02/02 | 2007/09/02 | VC? | |
| VCOValue | Q330 | 2008/03/20 | Present | VC? | |
- Network:
-
TA,BK (US Array and Berkeley Digital Seismic Network)
- Operation Notes: (may not be current)
- This section summarizes major changes in equipment or in instrumentation at HAST.
- Noise Characteristics:
-
The figures below are cumulative plots of power spectral density (psd)
determined from the broadband channels. In each figure, the vertical
component psd is plotted with blue diamonds, the north component
psd with red squares, and the east component psd with green circles.
The results are presented in the 5 different frequency bands, and
the USGS/Albuquerque low noise model is plotted as a dashed line in each.
The PSD units are in dB (decibel) relative to 1 (m/s**2)**2/Hz. The current
annual plot is updated weekly.
| Cumulative PSD results |
| 1999 |
2000 |
2001 |
2002 |
2003 |
2004 |
2005 |
 |
 |
 |
 |
 |
 |
 |
- Data Availability:
- BDSN waveforms and associated metadata are available at the
Northern California Earthquake Data Center (NCEDC).
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
Help on using these
tools is available.
Copyright 1995-2005, The Regents of the University of California.
Last modified: Wed Jun 25 13:34:08 PDT 2008
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