Bay Area Regional Deformation Network
BARD is a network of about 67 continuously operating Global Positioning System receivers in northern California. The primary goal of the network is to monitor crustal deformation across the Pacific-North America plate boundary and in the San Francisco Bay Area for earthquake hazard reduction studies and rapid earthquake emergency response assessment.
- Station Information
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- Map of BARD sites
- BARD status and plans
- Site Logs (receiver and antenna type history)
- Data Access
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Receiver data, both raw and RINEX 24-hour files, and site information are available. The raw and RINEX data files are in day-of-year directories. See hints for using ftp to retrieve data in compressed or uncompressed format.
When you use data from the NCEDC, please provide a proper acknowledgement of the data source.
- Analysis
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The data are analyzed at the U.S. Geological Survey to find the relative displacements of the stations:
Data from the BARD network may also be used for surveying applications. For legal purposes, the NCEDC relies on adjustments performed by the California Spatial Reference Center (CSRC), in partnership with the National Geodetic Survey, to provide precise NAD83 reference frame coordinates suitable for use by the surveying community. Many of the BARD stations are included in a 2000 adjustment following the Hector Mine earthquake, which were officially sanctioned by NGS in March 2001. These coordinates can also be obtained from NGS.
- Reports
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- Report on the Mini-PBO Borehole Adapter for GPS
- Publications
- BARD Project Reports
- Collaborations
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The BARD network is a collaborative effort of the:
- U.C. Berkeley Seismological Laboratory
- U.S. Geological Survey
- Stanford
- U.C. Davis
- U.C. Santa Cruz
- Trimble Navigation
- Ashtech
- Lawrence Livermore National Laboratory
- U.S. Coast Guard
- National Geodetic Survey
- Scripps Institution of Oceanography
- Jet Propulsion Laboratory
- Other useful links
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- Crustal Deformation
- Northern California - USGS Menlo Park
- Southern California - USGS Pasadena
- USGS Real-time Monitoring
- GPS
- GPS - General GPS information
- CDDIS - NASA Crustal Dynamics Data Information System
- IGS - International GPS Service for Geodynamics
- SOPAC - Scripps Orbit and Permanent Array Center
- SCIGN - Southern California Integrated GPS Network
- NGS - National Geodetic Survey
- BARGEN - Basin and Range Geodetic Network
- UNAVCO - University NAVSTAR Consortium
- PANGA/CWU - Pacific Northwest Geodetic Array, Central Washington University
- PANGA/UW - Pacific Northwest Geodetic Array, University of Washington
- WDCA/PGC - Western Canada Deformation Array, Pacific Geoscience Center
- NCGPSUG - Northern California GPS Users Group
- CGCC - California Geodetic Control Committee
- CSRC - California Spatial Reference Center
- Crustal Deformation
Please send comments and questions to bard@seismo.berkeley.edu.
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Northern California Earthquake Data Center
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Copyright 1995-2005, The Regents of the University of California.
Last modified: Fri Mar 7 14:15:55 PST 2008