Unified Interior Regions

California

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Filter Total Items: 580
Date published: January 1, 2017

CoSMoS (Coastal Storm Modeling System) Southern California v3.0 Phase 2 water-level projections: average conditions in Ventura County

Model-derived total water levels (in meters) for the given storm condition and sea-level rise (SLR) scenario.
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.0 for Souther

Date published: January 1, 2017

Water pressure/depth, velocity, and turbidity time-series data from CHC16 Bay channel stations in San Pablo Bay and China Camp Marsh, California

Files contain hydrodynamic and sediment transport data for the location and deployment indicated. Time-series data of water depth, velocity, turbidity, and temperature were collected in San Pablo Bay and China Camp Marsh as part of the San Francisco Bay Marsh Sediment Experiments. Several instruments were deployed in tidal creek, marsh, mudflat, and Bay locations, gathering data on

Date published: January 1, 2017

Continuous and optimized 3-arcsecond elevation model for the United States west coast (32-bit GeoTiff, geographic, NAD83)

Investigations of coastal change and coastal resources often require continuous elevation profiles from the seafloor to coastal terrestrial landscapes. Differences in elevation data collection in the terrestrial and marine environments result in separate elevation products that may not share a vertical datum. This data release contains the assimilation of multiple elevation products into a...

Date published: January 1, 2017

CoSMoS (Coastal Storm Modeling System) Southern California v3.0 Phase 2 water-level projections: 20-year storm in Ventura County

Model-derived total water levels (in meters) for the given storm condition and sea-level rise (SLR) scenario.
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.0 for Souther

Date published: January 1, 2017

Water pressure/depth, velocity, and turbidity time-series data from CHC13 Tidal creek stations in San Pablo Bay and China Camp Marsh, California

Files contain hydrodynamic and sediment transport data for the location and deployment indicated. Time-series data of water depth, velocity, turbidity, and temperature were collected in San Pablo Bay and China Camp Marsh as part of the San Francisco Bay Marsh Sediment Experiments. Several instruments were deployed in tidal creek, marsh, mudflat, and Bay locations, gathering data on

Date published: January 1, 2017

Faults--Offshore of Point Conception Map Area, California

This part of DS 781 presents fault data for the geologic and geomorphic map of the Offshore of Point Conception Map Area, California. The vector data file is included in "Faults_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P.,...

Date published: January 1, 2017

CoSMoS (Coastal Storm Modeling System) Southern California v3.0 Phase 2 wave-hazard projections: 20-year storm in Los Angeles County

Projected Hazard: Model-derived significant wave height (in meters) for the given storm condition and sea-level rise (SLR) scenario.
Model Summary: The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise %2

Date published: January 1, 2017

Seafloor character--Offshore of Gaviota Map Area, California

This part of DS 781 presents data for the Seafloor character map of the Offshore of Gaviota map area, California. The vector data file is included in "SeafloorCharacter_OffshoreGaviota.zip," which is accessible from https://doi.org/10.5066/F7TH8JWJ. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Cochrane, G.R.,...

Date published: January 1, 2017

CoSMoS (Coastal Storm Modeling System) Southern California v3.0 Phase 2 ocean-currents projections: average conditions in Ventura County

Model-derived ocean current velocities (in meters per second) for the given storm condition and sea-level rise (SLR) scenario.
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS

Date published: January 1, 2017

Gravity cores from San Pablo Bay and Carquinez Strait, San Francisco Bay, California

This data release contains information on gravity cores that were collected by the U.S. Geological Survey in the area of San Pablo Bay and Carquinez Strait, California in 1990, 1991, and 2000. Ten (10) pdf files describe gravity cores that were split, photographed, and imaged by X-rays, and another pdf file contains a core-log legend. In addition, a shapefile provides sample col

Date published: January 1, 2017

CoSMoS (Coastal Storm Modeling System) Southern California v3.0 Phase 2 ocean-currents projections: 100-year storm in Orange County

Model-derived ocean current velocities (in meters per second) for the given storm condition and sea-level rise (SLR) scenario.
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS

Date published: January 1, 2017

Water pressure/depth, velocity, and turbidity time-series data from CHC14 Bay channel station in San Pablo Bay and China Camp Marsh, California

Files contain hydrodynamic and sediment transport data for the location and deployment indicated. Time-series data of water depth, velocity, turbidity, and temperature were collected in San Pablo Bay and China Camp Marsh as part of the San Francisco Bay Marsh Sediment Experiments. Several instruments were deployed in tidal creek, marsh, mudflat, and Bay locations, gathering data on

Filter Total Items: 1,109
A person's hand holds a book containing a color coded system for identifying sediment near a sediment core lying on a tabletop.
March 16, 2017

Munsell chart colors for describing sediment in a core

Lab technicians create written descriptions of sediment cores, referencing Munsell chart colors and standard phrases.

Photo of scientist climbing an island off the coast of Big Sur
March 15, 2017

WERC Big Sur Deployment

Scientists from the USGS Western Ecological Research Center deploy to Big Sur to study seabird populations.

Shelving that has many bags, tubes, and boxes filled with sand and mud.
March 9, 2017

Refrigerated sample storage shelving

The refrigerated sample repository of the USGS Pacific Coastal and Marine Science Center in Santa Cruz, CA includes easily accessible shelving space which can store thousands of samples.

USGS hydrologic technician stands in waist-high waters of a flooded Santa Maria River while taking streamflow measurements
March 1, 2017

Santa Maria River Flooding

A USGS hydrologic technician takes streamflow measurements during flooding of the Sisquoc River, a tributary of the Santa Maria River, near the town of Garey in Santa Barbara County. 

Photo of shoreline with very little sandy beach. Heavy equipment is  piling up large boulders (rip rap) along the eroded shore
February 28, 2017

Armoring the shore at Goleta Beach

Installing large boulders as rip rap to armor the shore against further erosion at Goleta Beach in Southern California. The tide is very low (negative).

photo of bare rocks exposed below cliffs at low tide along a shoreline.
February 28, 2017

Exposed bedrock at low tide

Exposed bedrock on the beach, below the University of California, Santa Barbara.

row of palm trees along a low cliff behind a narrow beach with very little sand
February 28, 2017

Beach loss and armoring at Goleta Beach

Beach loss and armoring at Goleta Beach, very low (negative) tide

long stretch of beach, with row of houses teetering on the edge of the cliff above beach. Bare rocks exposed & no sand on beach
February 28, 2017

Exposed bedrock at Isla Vista beach

Bedrock exposed at low tide along the beach at Isla Vista, California

house perched at the top of cliff edge above beach.
February 28, 2017

Exposed bedrock at Isla Vista

Exposed bedrock on the beach during very low (negative) tide at Isla Vista, California

Map showing depth of a very intricate bay and delta system color-coded to enhance central bay channels and tidal channels.
February 27, 2017

San Francisco Bay and Delta DEM

High-resolution (10-meter per pixel) digital elevation model (DEM) of the Sacramento-San Joaquin Delta, using both bathymetry and topography data relative to current modern datum of North American Vertical Datum of 1988 (NAVD88). This DEM is the result of collaborative efforts of the U.S. Geological Survey (USGS) and the California Department of Water Resources (DWR).

two men standing in a boat tied up to a dock
January 31, 2017

Readying a sonar-equipped boat for mapping

USGS scientists readying a sonar-equipped boat to map the ocean bottom near Santa Cruz, Calif.

person standing up riding a personal watercraft across small ocean swells, with buildings and a long pier in the background
January 31, 2017

Sonar-equipped personal watercraft mapping bathymetry.

A sonar-equipped personal watercraft mapping the bathymetry underwater near Santa Cruz, Calif.

Filter Total Items: 985
USGS science for a changing world logo
January 25, 2011

Gold dredging that disturbs fine-grained, mercury-laden sediment in California’s South Yuba River can allow higher amounts of mercury to enter the environment, potentially threatening food webs far downstream.

USGS science for a changing world logo
January 13, 2011

For emergency planning purposes, scientists will unveil a California scenario that describes a catastrophic storm that could possibly overwhelm the state's flood protection system, and significantly disrupt statewide social and economic systems.

USGS science for a changing world logo
January 11, 2011

For emergency planning purposes, scientists will unveil a California scenario that describes a catastrophic storm that could possibly overwhelm the state's flood protection system, and significantly disrupt statewide social and economic systems.

USGS
December 12, 2010

The U.S. Geological Survey (USGS) is celebrating the success of three distinguished researchers who are recipients of the Presidential Early Career Award for Scientists and Engineers (PECASE). This award is the highest recognition granted by the United States government to scientists and engineers in the early stages of their research careers.

USGS
December 10, 2010

SAN FRANCISCO­ —  The U.S. Geological Survey participates in the American Geophysical Union's fall meeting with hundreds of technical presentations.  Selected here are some highlights of USGS science at AGU.

USGS
December 1, 2010

MENLO PARK, Calif. — Holiday shoppers can pick up free gift wrap from the U.S. Geological Survey and California Geological Survey’s Maps and Publications Sales Office and enjoy a traveling exhibit about topographic mapping over the past 125 years.

USGS
November 17, 2010

MENLO PARK, Calif. — In recognition of Geography Awareness Week during the third week of
 November, the U.S. Geological Survey is hosting an evening public lecture on Thursday, and an exhibit on the development of topographic mapping that will be open until January.

USGS
November 17, 2010

Approximately 13 million metric tons of rare earth elements (REE) exist within known deposits in the United States, according to the first-ever nationwide estimate of these elements by the U.S. Geological Survey.

USGS
November 8, 2010

MENLO PARK, Calif. ­– Marine life in the San Francisco Bay has flourished over the past decade in concert with a large-scale climatic shift originating far out in the Pacific Ocean, according to a new U.S. Geological Survey study. The study challenges the established principle that water quality in bays and estuaries is driven primarily by human-caused changes in the surrounding landscape.

USGS
October 28, 2010

PASADENA, Calif. – The agency responsible for earthquake monitoring across the United States is looking for 35 volunteers in Southern California to host an earthquake sensor in their home.

USGS
October 6, 2010

YOSEMITE NATIONAL PARK, Calif. — The wraps came off a new streamgage and interpretive station at a popular streamside location in Yosemite National Park today.

The station includes a new streamgage for the Merced River – where the U.S. Geological Survey has measured streamflow since 1915 – as well as a complex array of National Weather Service instruments, a webcam, and a special series of...

USGS
October 4, 2010

Reporters are invited to witness a dedication ceremony and ribbon cutting for a new streamgage, interpretive displays, weather instruments, and a webcam on the Merced River in Yosemite Valley.