SBRN - San Bruno Mtn., Brisbane, CA, USA
Station Name | SBRN (SBRB/SBRN) |
In Operation | 2002/08/15 00:00:00 - Present |
Latitude | |
Longitude: | |
Elevation: | 4.0 meters |
Instrumentation | Borehole GPS Other |
Location
SBRN is located on San Bruno Mountain, under the auspices of the city of Brisbane. This site is known as SFBSB in the USGS Low Frequency Network. 1.25" pipe bolted into borehole casing SBRB replaced retired GPS site SBRN. Monument is drilled and pinned into the roof of a single story concrete structure.Network
Mini Plate Boundary Observatory Network (BK)Bay Area Regional Deformation Network Network (BARD)
Geology
Upper Cretaceous, sandstone, shale, and conglomerate
Borehole Conditions
The MiniPBO borehole was installed on 08/06/2001. The strainmeter was installed at 551.5 ft and the seismometer package at 530.0 ft depth. This figure shows the location of equipment in the borehole.GPS Monument Description
1.25" pipe bolted into borehole casingSeismic Station Pictures
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GPS Station SBRB Pictures
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Retired GPS Station SBRN Pictures
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GPS Station Timeseries
- Time series processing at the BSL *
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Last year Clean Clean & detrended Raw Raw & detrended Lifetime Clean Clean & detrended Raw Raw & detrended Text file (final results only) Clean Raw
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*discontinued
- Time series processing at the BSL *
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Last year Clean Clean & detrended Raw Raw & detrended Lifetime Clean Clean & detrended Raw Raw & detrended Text file (final results only) Clean Raw
- We are currently reprocessing older data and full lifetime time series are not
yet available. Check back here or send an email to bard@seismo.berkeley.edu for
information on older time series.
*discontinued
Table of Seismic Instrumentation
Sensor | Datalogger | SEED Channels | Location | |
Geophone | Mark Products L-22 Horizontal Geophone | Q330-GFE | EP?,LP?,SP? | 40 |
Mark Products L-22 Vertical Geophone | Q330-GFE | EP?,LP?,SP? | 40 | |
Sensor | Datalogger | SEED Channels | Location | |
Auxiliary | AntennaCurrent | Q330-GFE | VE? | 40 |
ClockPhase | Q330-GFE | LC?,VC? | 40 | |
ClockQuality | Q330-GFE | LC?,VC? | 40 | |
InputVoltage | Q330-GFE | VE? | 40 | |
Paroscientific 8WD Digital Pressure Meter | Q330-GFE | LD? | 40 | |
Sacks 3-component Tensor Strainmeter | Q330-GFE | BS?,HS?,LS? | 40 | |
SystemCurrent | Q330-GFE | VE? | 40 | |
SystemTemperature | Q330-GFE | VK? | 40 | |
VCOValue | Q330-GFE | VC? | 40 | |
CalibrationInput | QEP | LC? | EP | |
Humidity | QEP | LI? | EP | |
Pinnacle5000 | QEP | BA?,LA? | EP | |
Pressure | QEP | LD? | EP | |
Setra Systems Model 270 Barometer | QEP | LD? | EP | |
Temperature | QEP | LK? | EP |
Waveforms and associated metadata, and GPS data, are available at the Northern California Earthquake Data Center (NCEDC).
Waveform Data
- BK Information Directory, including
- List of station locations
- List of available channels
- Instrument Response
- Querying the archives
- Download waveform data
GPS Data
- Site log: sbrb.log
Data Type From To Low-rate raw --- --- Low-rate rinex 08/21/2008 present High-rate raw 08/21/2008 present High-rate rinex 05/1/2010 present - Site log: Retired station sbrn.log
Data Type From To Low-rate raw 03/05/2003 10/6/2003 Low-rate rinex 03/05/2003 04/15/2011 High-rate raw 10/6/2003 04/15/2011 High-rate rinex 5/1/2010 04/15/2011
Noise Analysis
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GPS Data Quality
Completeness
Data completeness is defined both as "Completeness of observations" and "Cycle slips per observation". "Completeness of Obs." is the number of epochs in the final RINEX file normalized to the expected number. This percentage will go down if time is missing from the RINEX file. "Cycle slips per Obs." is the total number of detected cycle slip normalized to the total number of observations in the RINEX file. This number will increase as the receiver loses lock on satellites more frequently.
Previous Year |
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Lifetime |
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Multipath
The effects of multipath on the data are estimated by parameters for L1 and L2 (MP1 and MP2 respectively); see Estey and Meertens (GPS Solutions, 1999) for derivation. The daily value is the RMS of MP1 and MP2 throughout the day and for all satellites. Higher values indicate a greater prevalence and/or strength of multipathing, i.e. objects on the ground are providing multiple reflection pathways from the satellite to antenna.
Previous Year |
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Lifetime |
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Signal-to-Noise Ratio
The Signal-to-Noise ratios are the mean values above the QC elevation mask for L1 and L2 respectively.
Previous Year |
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Lifetime |
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Completeness
Data completeness is defined both as "Completeness of observations" and "Cycle slips per observation". "Completeness of Obs." is the number of epochs in the final RINEX file normalized to the expected number. This percentage will go down if time is missing from the RINEX file. "Cycle slips per Obs." is the total number of detected cycle slip normalized to the total number of observations in the RINEX file. This number will increase as the receiver loses lock on satellites more frequently.
Previous Year |
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Lifetime |
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Multipath
The effects of multipath on the data are estimated by parameters for L1 and L2 (MP1 and MP2 respectively); see Estey and Meertens (GPS Solutions, 1999) for derivation. The daily value is the RMS of MP1 and MP2 throughout the day and for all satellites. Higher values indicate a greater prevalence and/or strength of multipathing, i.e. objects on the ground are providing multiple reflection pathways from the satellite to antenna.
Previous Year |
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Lifetime |
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