ORV - Oroville Dam

We operate broadband and borehole stations under the network code BK. The Berkeley Digital Seismic Network (BDSN) is a regional network of very broadband and strong motion seismic stations designed to monitor regional seismic activity as well as provide high quality data. The Berkeley borehole stations have borehole geophones or other seismic sensors and may have other geophysical instrumentation.

BARD is our GPS network for monitoring 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

Load California Faults

Station Name	ORV (ORVB)
In Operation	1992/07/31 18:50:00 - Present
Latitude
Longitude:
Elevation:	340.0146 meters
Instrumentation	Broadband GPS

Site

Location

Site is located near the Oroville Dam, and is under the auspices of the CA Department of Water Resources.

Network

Berkeley Digital Seismic Network (BK)
Bay Area Regional Deformation Network Network (BARD)

Geology

Eocene basalt

Borehole Conditions

The vault is made of concrete, orientated north/south, and excavated into a hilltop. Approximately 1 meter of backfilled soil covers the top of the vault. The datalogger is located in an adjacent building (90' away) connected by conduits. The seismometers are thermally insulated with 4" of polyurethane foam. The accelerometer is co-located with the datalogger.

GPS Monument Description

Reinforced concrete monument

Plots & Figures

Seismic Station Pictures

ORV pier with STS-1s

ORV vault

GPS Station Daily Timeseries

GPS Station Pictures

ORVB

Instrumentation

Table of Seismic Instrumentation

	Sensor	Datalogger	SEED Channels	Location
Broadband	Streckeisen STS-1 VBB Feedback Horizontal Seismometer	Q330HR-GFE	BH?,HH?,LH?,VH?	00
	Streckeisen STS-1 VBB Feedback Vertical Seismometer	Q330HR-GFE	BH?,HH?,LH?,VH?	00
Accelerometer	Kinemetrics FBA ES-T Accel. GFE (4 g max 5v/g)	Q330HR-GFE	HN?	00
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
	CalibrationInput	Q330HR-GFE	LC?	EP
	Humidity	Q330HR-GFE	LI?	EP
	Pressure	Q330HR-GFE	LD?	EP
	Setra Systems Model 270 Barometer	Q330HR-GFE	LD?	EP
	Temperature	Q330HR-GFE	LK?	EP

GPS Instrumentation

	Receiver	Antenna	Radome	-
GPS	SEPTENTRIO POLARX5	ASHTECH ASH700936D_M	SCIS	-

Data & Metadata

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
  - Year/month/day format
  - Year,doy format
- Instrument Response
  - SEED format
  - Simplified Responses

Querying the archives
- SeismiQuery at the NCEDC
Download waveform data

GPS Data

Site log: orvb.log

Data Type From To
Low-rate raw 11/21/1996 3/12/2008
Low-rate rinex 11/21/1996 present
High-rate raw 3/12/2008 present
High-rate rinex 5/1/2010 present

Data Type	From	To
Low-rate raw	11/21/1996	3/12/2008
Low-rate rinex	11/21/1996	present
High-rate raw	3/12/2008	present
High-rate rinex	5/1/2010	present

Data Quality

Noise Analysis

View more noise plots

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

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

Lifetime

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

Lifetime