MNRC - McLaughlin Mine, CA, USA
|Station Name||MNRC (MNRC)|
|In Operation||2003/06/19 15:00:00 - Present|
LocationThe MNRC site is on property owned and formerly operated by Homestake Mining Company as a surface gold mine. The geology of the area is extremely varied and complex. With the conclusion of mining operations, the property will be managed by UC Davis as the McLaughlin Reserve (part of the University of California Natural Reserve System. The seismographic vault is the first new research project on the reserve. The site is located approximately 20 kilometers east of the town of Lower Lake, California in an area of Franciscan sandstone.
NetworkBK, BARD (Berkeley Digital Seismic Network and Bay Area Regional Deformation Network)
Vault/Borehole ConditionsA steel and concrete vault from a shipping container similar to those found at stations JCC, PKD, and HOPS was constructed. Power and telephone lines were trenched approximately 300 meters to the site. Because of the remoteness of the site, digital telephone data circuits are not available. Telemetry was established in spring 2004 using a radio network that brings the data down to Napa and into the frame-relay network.
Plots & Figures
View of the MNRC vault at McLaughlin Reserve
STS-2 and Episensor installation at MNRC
- 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
Table of Seismic Instrumentation
Sensor Datalogger SEED Channels Location Broadband Streckeisen STS-2 VBB Tri-Axial Seismometer Q330HR-GFE BH?,HH?,LH?,VH? 00 Accelerometer Kinemetrics FBA ES-T Accel. (2 g max 10 v/g) Q330HR-GFE HN? 00 Receiver Antenna Radome - GPS TopCon Net-G3A TopCon Choke-ring SCIGN Tall - Sensor Datalogger SEED Channels Location Auxiliary AntennaCurrent Q330HR-GFE VE? 00 ClockPhase Q330HR-GFE LC?,VC? 00 ClockQuality Q330HR-GFE LC?,VC? 00 InputVoltage Q330HR-GFE VE? 00 SystemCurrent Q330HR-GFE VE? 00 SystemTemperature Q330HR-GFE VK? 00 VCOValue Q330HR-GFE VC? 00
Data & Metadata
Waveforms and associated metadata, and GPS data, are available at the Northern California Earthquake Data Center (NCEDC).
- BK Information Directory, including
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 Lifetime
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 Lifetime