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May 31, 2016

Breaking Down Reefs, Building Up Beaches

On the remote western coast of Australia lies a UNESCO World Heritage Site above and below the sea. Researchers from the U.S. Geological Survey and University of Western Australia convened here at Ningaloo Reef and Jurabi Coastal Reserve to embark on the most extensive study EVER done into how coral reefs shape our coasts.
 

Photo of a hen mallard with a GPS transmitter.
May 13, 2016

USGS WERC Scientist Holding Hen Mallard with Transmitter

Photo of a USGS scientist holding a hen mallard equipped with a GPS transmitter. 

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge
April 18, 2016

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge

3D Lidar Point Cloud Image of San Francisco Bay and Golden Gate Bridge in California

April 12, 2016

Whats The Big Idea? — Pulling Water Out of Thin Air

Alicia Torregrosa, physical scientist with the USGS Western Geographic Science Center, explains how her work with coastal fog might one day help access new sources of water.

USGS scientist Jackson Currie navigates a personal water craft through waves, collecting bathymetric data in Monterey, CA
March 24, 2016

Collecting Bathymetric Data

Physical scientist Jackson Currie steers a personal water craft (PWC) equipped with GPS and echo sounder through the waves of the nearshore area of Zmudowski State Beach in Moss Landing, California. The data collected is used to generate bathymetric maps, or maps of what the nearshore environment looks like underwater. Gathering this type of information helps USGS

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March 24, 2016

Marine Terraces of California: Landscapes from the Waves

  • Did you know soils on California’s marine terraces can be over a million years old? 
  • Have you wondered why California’s rugged shorelines are terraced?
  • Soils on marine terraces aid our understanding of soil formation, water movement, and carbon transformations under changing climate.
Scientist sample for suspended sediment by boat near the Golden Gate Bridge on a calm sunny day.
March 22, 2016

Measuring suspended sediment in San Francisco Bay

USGS researchers collect water samples from the Research Vessel Dorah Henry to measure suspended sediment concentration in Central San Francisco Bay. Samples were collected using a D-96 sampler that collects samples over the entire depth of the water column allowing for a  depth-integrated sample.

Image: Rockslide along Ferguson Highway 140, California
March 14, 2016

Rockslide along Ferguson Highway 140, California

2006 Rockslide on Ferguson-Hwy 140 in California along the Merced River about 8 miles west of El Portal and the entrance of Yosemite National Park.

March 3, 2016

What's the Big Idea? Using Remote Sensing to Understand Climate Change

Zhuoting Wu, research ecologist at the USGS Western Geographic Science Center, explains how the USGS uses remote sensing technology to help Tribal communities better understand the effects of climate change. 

A photo of USGS biological science technician Desmond Mackell with a GPS-tagged male mallard.
February 23, 2016

USGS WERC Scientist with Male Mallard

A photo of USGS biological science technician Desmond Mackell holding a male mallard. USGS scientists based out of Dixon, CA are banding and marking mallards and other waterfowl with GPS transmitters as part of an ongoing study in the Suisun Marsh. 

USGS technician releases a male pintail as part of a study.
February 19, 2016

USGS WERC Scientist Releasing Tagged Male Pintail

A photo of USGS biological science technician releasing a male pintail in Suisun Marsh, CA. USGS Western Ecological Research Center scientists based out of Dixon, CA are marking and tagging waterfowl with GPS transmitters as part of an ongoing study.

Long Valley Caldera Range Front Fault Diagram...
January 22, 2016

Long Valley Caldera range-front faults terminate at the caldera bou...

This is a simplified diagram of regional range front faults as they intersect the Long Valley Caldera. The Hartley Springs Fault and Hilton Creek Fault are range-front faults caused by regional Basin and Range extension (Earth's crust is pulling apart, and the Sierra Nevada mountains are lifting up and moving to the west as the Basin and Range drops down to the east).

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CalVO staff assembled in the Rambo Auditorium, Menlo Park, CA...
August 1, 2011

Inquiries have come to the USGS regarding a potential eruption in the vicinity of Lavic Lake Volcanic Field (LLVF) in Southern California.

USGS science for a changing world logo
July 12, 2011

Knowing that the U.S. west coast was battered during the winter before last by a climatic pattern expected more often in the future, scientists have now pieced together a San Diego-to-Seattle assessment of the damage wrought by that winter's extreme waves and higher-than-usual water levels. 

USGS science for a changing world logo
July 5, 2011

Scientists detected low concentrations of pharmaceutical compounds in groundwater samples from 2.3 percent of tested aquifers used for drinking water in California.  Pharmaceuticals were detected more frequently in urban areas according to results of a U.S. Geological Survey study published in the journal, Science of the Total Environment.

USGS science for a changing world logo
June 23, 2011

 A new U.S. Geological Survey documentary, Turbid Bay: Sediment in Motion, describes ongoing research into the transport of sediment at the margins of San Francisco Bay. 

USGS science for a changing world logo
May 16, 2011

Marine biologists are gathering in Alaska this week to kick off a three-week expedition studying sea otters, as part of a joint U.S.-Canadian project to investigate the ecological health of the Pacific coastline.

The "Pacific Nearshore Project" is a multinational, multiagency project investigating sea otters as health indicators of coastal waters and marine resources from California nort

USGS science for a changing world logo
May 13, 2011

Fecal indicator bacteria, or FIB, sometimes found in the Malibu Lagoon and the near-shore ocean water in Malibu, California, may not be the result of human waste contamination according to preliminary results of a new U.S. Geological Survey study.

USGS science for a changing world logo
April 27, 2011

High concentrations of naturally occurring elements, including arsenic and boron as well as human-introduced compounds such as nitrate, were found in three aquifers studied in the Sacramento Valley. Scientists determined that concentrations of these substances in untreated water exceed state and federal health standards for drinking water. 

USGS science for a changing world logo
April 25, 2011

Beginning on or about June 8th and lasting approximately one month, an airplane under contract to the U.S. Geological Survey, and in partnership with the Utah Geological Survey, will begin collecting and recording geophysical measurements over parts of northern Utah from Snowville, east to Brigham City, and south to Farmington Bay.  The flights will cover the eastern and southern parts of Box

USGS science for a changing world logo
April 8, 2011

A new report issued by the American Red Cross and the U.S. Geological Survey documents the Chilean response and recovery efforts following the Feb. 2010 magnitude 8.8 earthquake and the lessons that California should learn from this disaster.   

USGS science for a changing world logo
April 6, 2011

On April 8, 2011 officials from the Red Cross, the U.S. Geological Survey, and the City of Los Angeles will hold a press conference at Los Angeles City Hall to announce the findings of a just-released report on the magnitude 8.8 earthquake in Chile in 2010 and the implications for Los Angeles.

USGS science for a changing world logo
March 29, 2011

How birds find their way over great distances during homing and migrational flights is the subject of the U.S. Geological Survey public lecture on Thursday, March 31st. After nearly half a century of intensive research, biologists are still unable to agree on how birds manage to navigate with such uncanny accuracy. 

USGS science for a changing world logo
March 29, 2011

How birds find their way over great distances during homing and migrational flights is the subject of the U.S. Geological Survey public lecture on Thursday, March 31st. After nearly half a century of intensive research, biologists are still unable to agree on how birds manage to navigate with such uncanny accuracy.