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Explore the technical news that focuses on data, methodologies, and more.

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Date published: June 26, 2009

Atmospheric Deposition is a Significant Source of Total Nitrogen Delivered Annually to Nutrient Sensitive Estuaries along the South Atlantic and Gulf Coasts

Atmospheric deposition is the largest source of nitrogen delivered annually to many estuaries and bays along the South Atlantic and Gulf Coast.

Date published: June 26, 2009

Contaminant Levels Low in Most U.S. Carbonate Aquifers

Carbonate aquifers provide water of acceptable quality for human use and consumption in the majority of wells sampled across the U.S. according to a recent U.S. Geological Survey (USGS) study. With few exceptions, chemicals detected in groundwater from carbonate aquifers were low, generally below human-health benchmarks.

Date published: June 15, 2009

Where Do Mussels Go When Water Levels Drop?

Tracking Native Mussels on the Mississippi River
For the first time ever, mussels in the Mississippi River will be radio tagged and their movements observed during the water-level drawdown that is scheduled to begin next week.

Date published: May 21, 2009

New Tool Predicts Potential Desert Tortoise Habitat

A new tool provides land managers with a predictive model for mapping the potential distribution of desert tortoise habitat and to evaluate different land-use issues the tortoises face at a landscape scale.
The entire listed range of the federally threatened Mojave population of desert tortoise (Gopherus agassizii) is covered by this habitat model.

Date published: April 28, 2009

USGS Defines Extent of Aquifers and Occurrence and Movement of Ground-water in the Upper Humboldt River Basin

A new report by the USGS provides information that improves the understanding of the water resources of the upper Humboldt River basin. The study, conducted in cooperation with Elko County, describes the hydrogeologic framework that controls the movement of ground-water in the upper Humboldt River basin.

Attribution:
Date published: April 21, 2009

Searching for Detailed Image Information for the Moon and Mars Just Got a Whole Lot Easier

Detailed searches of planetary images are now available through a new Web-based tool created by USGS Astrogeology Science Center web-developers, scientists, and cartographers. The tool, which is funded by NASA's Planetary Data System, is being unveiled to the public this week.

Date published: April 21, 2009

What's Protected, What's Not: New Protected Areas Database for United States' Land Now Available

Getting a picture of the status of conservation efforts in the United States has just been made easier thanks to a just-released database that allows wildlife and conservation professionals to visit a single place to find comprehensive information on protected areas.

Date published: April 2, 2009

U.S. Oil Shale Assessments Updated

The U.S. Geological Survey has updated its assessment of in-place oil shale resources in the Piceance Basin in western Colorado.
Development of oil shale has significant technological and environmental challenges and no economic extraction method is currently available in the U.S. Therefore it is unknown how much of the assessed in-place (total amount present) resource is recoverable.

Date published: April 1, 2009

Uncertainties in Ranking the Top Watersheds Contributing Nutrients to the Gulf

Each of the 818 large watersheds in the Mississippi/Atchafalaya River Basin (MARB) has been ranked on the basis of SPARROW model estimates of nitrogen and phosphorus yields delivered to the Gulf of Mexico by the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA).

Date published: March 18, 2009

USGS Offers $7 Million in Earthquake Research Grants

The U.S. Geological Survey (USGS) will award up to $7 million in grants and cooperative agreements for earthquake research in 2010.
Interested researchers can apply online at GRANTS.GOV under the funding opportunity number 10HQPA0001. Applications are due May 13, 2009.

Attribution: Region 11: Alaska
Date published: February 27, 2009

Ongoing Housing Decline Reflected in Mineral Production Data

Data for Fourth Quarter of 2008
The U.S. Geological Survey's latest quarterly data on U.S. mineral commodity production reflect the overall decline in the U.S. economy and the domestic housing market.
U.S. production of construction materials declined significantly in the fourth quarter of 2008 as compared with the third quarter of 2008.

Date published: February 13, 2009

Satellite-Tracked Birds from India Will Provide Clues on How Avian Influenza Spreads: International Team Conducts Research

The largest waterbird congregation site in the Indian subcontinent is the site of a new international study of migratory birds and their role in the spread of highly pathogenic avian influenza (HPAI) H5N1.