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Author Archive

Sunday, November 3rd, 2013

USGS Crews Measure Flooding in Texas

USGS field crews are measuring flooding in parts of central Texas following intense rainfall. USGS crews are measuring high flood flows on the Blanco, Guadalupe, San Marcos, and Colorado Rivers.  Record flooding was measured at the streamgage on Onion Creek at Highway 183 in Austin, Texas on Halloween morning around 10 a.m. The creek level

Thursday, October 31st, 2013

Nitrate Levels Continue to Increase in Mississippi River; Signs of Progress in the Illinois River

Although recent declines in nitrate in the Illinois River are promising, increasing nitrate levels at other sites throughout the basin are a continuing cause for concern.Nitrate levels in the Illinois River decreased by 21 percent between 2000 and 2010, marking the first time substantial, multi-year decreases in nitrate have been observed in the Mississippi River

Monday, October 28th, 2013

The People’s Choice: Americans Would Pay to Help Monarch Butterflies

Americans place high value on butterfly royalty. A recent study suggests they are willing to support monarch butterfly conservation at high levels, up to about 6 ½ billion dollars if extrapolated to all U.S. households.If even a small percentage of the population acted upon this reported willingness, the cumulative effort would likely translate into a

Wednesday, October 23rd, 2013

White Sturgeon Hatch-Success Study Yields Clues to Restoration Strategy

The eggs of endangered Kootenai River white sturgeon are less likely to hatch on some of the surfaces that have been made more common by human, or anthropogenic, changes on the river, a new U.S. Geological Survey report has found.

Sunday, October 6th, 2013

Researchers Appraise the Binatinoal Santa Cruz River Watershed

The Santa Cruz River watershed, located on the Arizona-Sonora portion of the U.S.-Mexico border, depends for its perennial flow on an international treatment plant that treats wastewater on both sides of the border before discharging it into the river in Arizona. This treated wastewater has great value for nearby wildlife and ecosystem managers, property owners

Friday, September 27th, 2013

How Global Change Will Impact Mercury around the World

Rising global temperatures and changing human actions will significantly affect the behavior and distribution of mercury worldwide, according to a recent article by the U.S. Geological Survey and Harvard University.

Friday, September 27th, 2013

California Aquifer Study Finds High Contentration of Nitrates in the Groundwater

Nitrate was detected at high concentrations in 10 percent of the aquifer system used for public supply in coastal areas of Santa Barbara and San Luis Obispo counties, according to a new U.S. Geological Survey report. Trace elements, such as naturally occurring arsenic and molybdenum, were found at high concentrations in 27 percent of the

Thursday, September 19th, 2013

Surveying Ice and Fire: The First Map of All of Iceland’s Glaciers and Subglacier Volcanic Calderas Released

For the first time, all of Iceland’s glaciers are shown on a single map, produced by the Icelandic Meteorological Office (IMO), in collaboration with the U. S. Geological Survey (USGS) and Iceland Geosurvey.  The map is the first to incorporate historical data and coverage from aerial photographs and remote sensing satellites, such as Landsat and

Wednesday, September 18th, 2013

Geologic Map Day Celebrates Contributions to Society

The U.S. Geological Survey is partnering with the American Geosciences Institute, the Association of American State Geologists and others to promote the importance of geologic mapping to society.

Tuesday, September 17th, 2013

NASA Launches Study of Next-Generation Global Land Imaging System

NASA and the U.S. Geological Survey kick off a quest for an innovative and affordable space-based system to extend the Landsat data record for decades to come with a public forum and call for ideas Wednesday, Sept. 18.

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