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125 Years of Sound Science, serving society

San Bruno Mtn., Brisbane, CA, USA

Station Name SBRN (SBRN/SBRB)
In Operation 2002/08/15 00:00:00 - Present
Latitude 37.69
Longitude: -122.41
Elevation: 4.00 meters
Instrumentation Borehole
GPS
Other


  • Site

    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.

    Network

    BK, UL, BARD (Mini PBO Network, USGS Low Frequency Network, and Bay Area Regional Deformation Network)

    Geology

    TBD

    Vault/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

    SBRB replaced retired GPS site SBRN. Monument is drilled and pinned into the roof of a single story concrete structure.
  • Plots & Figures

    Seismic Station Pictures

    View of SBRN

    View of SBRN

    No image

    No image

    GPS Station Timeseries - GPS Station SBRB

    Time series processing at the BSL

    Last year Clean Clean & detrended Raw Raw & detrended
    Lifetime Clean Clean & detrended Raw Raw & detrended
    Text file (final results only) Clean Raw

    GPS Station Timeseries - Retired GPS Station SBRB

    Time series processing at the BSL

    Last year Clean Clean & detrended Raw Raw & detrended
    Lifetime Clean Clean & detrended Raw Raw & detrended
    Text file (final results only) Clean Raw

    GPS Station Pictures - GPS Station SBRB

    SBRB

    SBRB

    SBRB

    SBRB

    GPS Station Pictures - Retired GPS Station SBRN

    SBRN

    SBRN

    SBRN

    SBRN

  • Instrumentation

    Table of Seismic Instrumentation

    SensorDataloggerSEED ChannelsLocation
    GeophoneMark Products L-22 Horizontal GeophoneQ330-GFEEP?,LP?,SP?40
    Mark Products L-22 Vertical GeophoneQ330-GFEEP?,LP?,SP?40
    ReceiverAntennaRadome-
    GPSTopcon Net-G3AAshtech Choke-RingNone-
    SensorDataloggerSEED ChannelsLocation
    OthersParoscientific 8WD Digital Pressure MeterQ330-GFELD?40
    Sacks 3-component Tensor StrainmeterQ330-GFEBS?,HS?,LS?40
    Pinnacle5000QEPBA?,LA?EP
    AuxiliaryVCOValueQ330-GFE
    AntennaCurrentQ330-GFEVK?40
    ClockPhaseQ330-GFEVE?40
    ClockQualityQ330-GFEVE?40
    SystemCurrentQ330-GFEVC?40
    InputVoltageQEPLK?EP
    InternalHumidityQEPLI?EP
    InternalPressureQEPLD?EP
    InternalTemperatureQEPLK?EP
    PLLOffsetQEPLC?EP
    Setra Systems Model 270 BarometerQEPLD?EP
    SystemTemperatureQEPLK?EP
  • Data & Metadata

    Waveforms and associated metadata, and GPS data, are available at the Northern California Earthquake Data Center (NCEDC).

    Waveform Data



    GPS Data - GPS Station SBRB

    GPS Data - Retired GPS Station SBRN

  • Data Quality

    Noise Analysis

    View more noise plots

    GPS Data Quality - GPS Station SBRB


    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
    SBRB completeness last year
    Lifetime
    SBRB completeness lifetime

    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
    SBRB multipath last year
    Lifetime
    SBRB multipath lifetime


    GPS Data Quality - Retired GPS Station SBRN


    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
    SBRN completeness last year
    Lifetime
    SBRN completeness lifetime

    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
    SBRN multipath last year
    Lifetime
    SBRN multipath lifetime