Western Geographic Science Center


Filter Total Items: 33
April 18, 2018

HayWired Scenario - Movie

The HayWired earthquake scenario, led by the U.S. Geological Survey (USGS), anticipates the impacts of a hypothetical magnitude-7.0 earthquake on the Hayward Fault. The fault is along the east side of California’s San Francisco Bay and is among the most active and dangerous in the United States, because it runs through a densely urbanized and interconnected region. 

Photo of Staten Island in the Sacramento Delta
January 25, 2018

Staten Island, Sacramento Delta, CA.

Staten Island in the Sacramento Delta, CA.

aerial image
December 31, 2017

AVIRIS image of Rush Ranch, Suisun Marsh, CA

AVIRIS image of Rush Ranch, Suisun Marsh, CA

Sacramento National Wildlife Refuge, CA
May 2, 2017

Sacramento National Wildlife Refuge, CA

Sacramento National Wildlife Refuge, CA

Scientists field verifying rice field in Thailand
December 31, 2016

Rice fields in Na Yai Am District, Chanthaburi Province, Thailand

USGS Research Geographer Dr. Prasad Thenkabail and field assistant Sam Chaiya record the location and growth stage of a large rice paddy with a tablet in Na Yai Am District, Chanthaburi Province, Thailand.

Kings Canyon view
December 31, 2016

Kings Canyon landscape

Grass/shrub landscape with mountains in background. Taken as part of the Land-cover Trends Project field verification process.

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.

Photo of Tidal marsh
March 18, 2016

Tidal marsh, Billy Frank Jr. Nisqually National Wildlife Refuge, WA.

A tidal marsh at Billy Frank Jr. Nisqually National Wildlife Refuge, WA.

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. 

July 31, 2014

PubTalk 7/2014 — The Ecological Value of Coastal Fog

Cooling relief and nebulous forecasts for northern California

by Alicia Torregrosa, USGS Physical Scientist


  • Did you know:
  • The Moss Beach/Montara area north of Half Moon Bay is the foggiest place in the San Francisco Bay Area?
  • Summertime fog in northern California depends on ocean
February 28, 2013

PubTalk 2/2013 — Is "THE IMPOSSIBLE" Possible in the Pacific Northwest

-- Coastal Community Tsunami Hazards and Risk

By Nathan Wood, Geographer


  • The movie "The Impossible", currently showing in theaters, portrays the destruction of the 2004 Indian Ocean tsunami
  • Recent tsunami disasters in the Pacific Ocean testify to their destructive power -- are similar events likely in the
August 30, 2012

PubTalk 8/2012 — Global Food Security in the 21st Century

--the increasing need for food production, cropland areas, and agricultural water

by Prasad Thenkabail, Research Geographer

  • Worldwide demand for food will require more than one billion hectares of new cropland to feed 9 billion plus people by 2050
  • Presently, of all the water used by humans over 70% goes towards