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A new book on the methods and applications of repeat photography that showcases its international usage in monitoring landscape change on five continents has been released...Book Released Detailing History and Relevance of Repeat Photography
(Released: Thu, 2 Dec 2010 11:22:32 EDT)

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Coal-tar-based pavement sealant is the largest source of polycyclic aromatic hydrocarbons (PAHs) found in 40 urban lakes studied by the U.S. Geological Survey...Coal Tar Sealant Largest Source of PAHs in Lakes
(Released: Wed, 1 Dec 2010 14:59:13 EDT)

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Many coastal wetlands worldwide — including several on the U.S. Atlantic coast — may be more sensitive than previously thought to climate change and sea-level rise projections for the 21st century...Many Coastal Wetlands Likely to Disappear this Century
(Released: Wed, 1 Dec 2010 12:30:00 EDT)

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Goodeich, David; Kepner, William; Semmens, Darius

A consortium of federal, academic, and nongovernment organization (NGO) partners have established a collaborative research enterprise in the San Pedro River Basin to develop methods, standards, and tools to assess and value ecosystem goods and services. The central premise of ecosystem services research is that human condition is intrin...Assessment of goods and valuation of ecosystem services (AGAVES) San Pedro River Basin, United States and Mexico
(Released: Thu, 2 Dec 2010 00:00 -0600)

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Leake, Stanley A.; Haney, Jeanmarie

The U.S. Geological Survey (USGS), in cooperation with The Nature Conservancy, has applied a groundwater model to simulate effects of groundwater pumping and artificial recharge on surface water in the Verde Valley sub-basin of Arizona. Results are in two sets of maps that show effects of locations of pumping or recharge on streamflow. These maps wil...Possible effects of groundwater pumping on surface water in the Verde Valley, Arizona
(Released: Thu, 2 Dec 2010 00:00 -0600)

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Musgrove, MaryLynn; Fahlquist, Lynne; Houston, Natalie A.; Lindgren, Richard J.; Ging, Patricia B.

As part of the National Water-Quality Assessment Program, the U.S. Geological Survey collected and analyzed groundwater samples during 1996-2006 from the San Antonio segment of the Edwards aquifer of central Texas, a productive karst aquifer developed in Cretaceous-age carbonate rocks. Th...Geochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards aquifer, 1996-2006
(Released: Thu, 2 Dec 2010 00:00 -0600)

Rare Earth Elements in U.S. Not So Rare Quick look:
The USGS has just released the first-ever nationwide assessment of rare earth elements in the United States. The report estimates total U.S. resources at just under 12 million metric tons, located in significant deposits in 14 states. Keith Long and Brad Van Gosen, the two lead authors of the report, discuss their findings.
Host: Alex Demas
(Wed, 17 Nov 2010 17:23:44 UTC; Length: 9:10)

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Latest Audio or Podcast Light Detection and Ranging, or LiDAR Quick look: This month's episode focuses on one of the most useful geographic tools scientists have for studying our natural world: Light Detection and Ranging, or LiDAR. LiDAR is a powerful data collection technique that can be used to map surface features, even those hidden beneath the dense canopy of Paci...

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View all USGS science topics or see more topics at Science.gov.

See also:
Ecosystems | Coastal/Offshore | International

What kinds of water data does the U.S. Geological Survey gather?

How can I obtain real-time streamflow information?

Are earthquake probabilities or forecasts the same as prediction?