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Men stand on a boat wearing safety gear and they are deploying instrumentation into the water using cables and ropes.
October 6, 2016

Deploying instrument package into Monterey Canyon

On October 6, 2016, scientists lower an instrument package on a taut-wire mooring into the canyon. The sediment trap (long funnel-shaped device) is designed to capture mud and sand carried in turbidity flows; the other sensors measure currents and suspended sediment.

People standing on a boat preparing an instrument for deployment, into the water.
October 6, 2016

Sediment trap deployment

Sediment trap is being prepared for deployment into Monterey Canyon offshore of Monterey, California.

September 30, 2016

Alluvial Thickness Model, Yucaipa area, California

To help visualize the Yucaipa groundwater basin geometry, this animation of the elevation of the top of the basement rocks was created. The animation allows the viewer to “fly” over the Yucaipa groundwater basin, viewing the land surface, geology (grouped by major geologic perioid and colored by deposit type), faults (color coded based on location), wells in different

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Wind turbines at the Altamont Pass Wind Farm
September 8, 2016

Wind turbines at the Altamont Pass Wind Farm

The Altamont Pass Wind Far is located in northern California.

September 1, 2016

What is the Delta?

This short video is intended to serve as an introduction to the Sacramento and San Joaquin Delta, and is the first in a series of four short videos highlighting USGS science in the San Francisco Bay and Sacramento-San Joaquin Delta Estuary. This video serves to orient the viewer to physical characteristics of the Delta, the challenges facing it, and the work the USGS is

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August 25, 2016

Tarantula Hawk

Tarantula hawk wasps sting and paralyze tarantulas to feed their young. USGS Ecologist Todd Esque captured this video of a tarantula hawk wasp dragging a tarantula through the desert in Mexico. 

August 25, 2016

Public Lecture Series — The New Eyes in the Sky

Putting Drones to Work for Scientific Research
By: Jeff Sloan, Geographer, Project Leader — USGS National Unmanned Systems Project Office

  • Why is there so much interest in unmanned technology?
  • What are the rules to legally  y within the National Airspace?
  • How does this technology increase safety, lower costs, and
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August 23, 2016

Golden Eagle Flight

Golden eagles can be killed by colliding with a number of human-made objects, including wind turbines. USGS research wildlife biologist Todd Katzner describes his studies of golden eagle flight. This research is being done to model flight behavior which might help managers understand how placement of wind turbines might pose significant risks to golden eagles.

 

Satellite image showing the spread of the Soberanes Fire
August 14, 2016

Landsat Shows Spread of Soberanes Fire

A wildfire near Soberanes Creek along the Pacific coast of California started July 22, 2016, and spread to over 86,000 acres one month later. Landsat images from July 13, July 29, and August 14 show the dramatic progression as active fire burns orange in the latter two scenes, and smoke appears as a blue haze.

Model of reservoirs underneath Long Valley Caldera...
August 8, 2016

Model of reservoirs underneath Long Valley Caldera

Main hydrothermal features of the new (2016) 3-D model of the subsurface at Long Valley Caldera. This schematic is based on a survey of the electrical properties of the earth (magnetotellurics) below. Arrows show subsurface water flow, with colors keyed to changing water temperature, from blue (cold) to red (hot). Purple arrows show an extinct hot water pathway. See 2016

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July 28, 2016

July Public Lecture — USGS CalVO: It's not just earthquake country!

Volcanic eruptions occur int he State about as frequently as the large San Andreas Fault Zone earthquakes. California's "watch list" volcanoes are dispersed throughout the State and future eruptions are inevitable—the likelihood of renewed volcanism is on the order of one in a few hundred to one in a few thousand annually.

With Margaret Mangan, Scientist-in-Charge,

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USGS science for a changing world logo
December 1, 2011

Differences in seismic activity along the San Andreas fault appear to be related to strength variations in the lower crust and upper mantle, as suggested by new findings in the Dec. 1 edition of Nature. 

CalVO staff assembled in the Rambo Auditorium, Menlo Park, CA...
November 30, 2011

During FY11, Long Valley Observatory's jurisdiction was expanded to encompass all California volcanoes and one volcanic center in Nevada. The Observatory's name will change to California Volcano Observatory (CalVO), which will correspond to a new website launch in early 2012.

USGS science for a changing world logo
November 15, 2011

New insights from recent Glen Canyon Dam high-water flow experiments on the Colorado River will be shared by USGS scientists on Wednesday night. They will discuss the results from these high-water flows in Grand Canyon National Park and describe the challenge of adaptively managing a highly regulated river.

USGS science for a changing world logo
November 7, 2011

Nearly 124,000 high resolution scans of the more than 200,000 historical USGS topographic maps, some dating as far back as 1884, are now available online. TheHistorical Topographic Map Collection includes published U.S. maps of all scales and editions, and are offered as a georeferenced digital download or as a scanned print from the USGS Store.

USGS science for a changing world logo
November 2, 2011

USGS scientists and academic colleagues investigated how California's interconnected San Francisco Bay and Sacramento-San Joaquin Delta (the Bay-Delta system) is expected to change from 2010 to 2099 in response to both fast and moderate climate warming scenarios. 

USGS science for a changing world logo
November 2, 2011

USGS scientists and academic colleagues investigated how California's interconnected San Francisco Bay and Sacramento-San Joaquin Delta (the Bay-Delta system) is expected to change from 2010 to 2099 in response to both fast and moderate climate warming scenarios. 

USGS science for a changing world logo
November 1, 2011

An hour-and-a-half program on Thursday evening highlights four different U.S. Geological Survey research projects. Scientists will talk about their recent scientific discoveries in non-technical terms for the general public.

USGS science for a changing world logo
October 28, 2011

It may seem like a barren, lifeless rock with only the haunting memories of the past, but a battle for survival continues each year on Alcatraz Island.

USGS science for a changing world logo
October 25, 2011

A hike along the Hayward Fault, a Science Crawl through San Francisco’s Mission District pubs and cafes, and a workshop on the birds of Alcatraz with U.S. Geological Survey scientists are among the many ways USGS is participating in the upcoming Bay Area Science Festival.

USGS science for a changing world logo
October 13, 2011

Dr. David Shelly, a research seismologist with the U.S. Geological Survey, was named one of President Obama's recipients of the Presidential Early Career Award for Scientists and Engineers, the highest honor bestowed by the United States government on science and engineering professionals in the early stages of their independent research careers.

USGS science for a changing world logo
October 4, 2011

Dr. Elizabeth Cochran, a geophysicist with the U.S. Geological Survey, was named one of President Obama’s recipients of the Presidential Early Career Awards for Scientists and Engineers, the highest honor bestowed by the United States government on science and engineering professionals in the early stages of their independent research careers. 

USGS science for a changing world logo
September 28, 2011

Groundwater pumping, which has been increasing since the 1940s, now accounts for about one third of the estimated annual flow from the aquifers of the eastern Great Basin. In parts of this region, groundwater pumping exceeds the rate of natural discharge, leading to land subsidence and declines in water levels and spring flow.