122 Works

TEST DOI - Updated on 7/10

Justin J. Wright & U.S. Forest Service
Description was updated

Whooping Crane Winter Abundance Survey Protocol: Aransas National Wildlife Refuge

Matthew J. Butler, Bradley N. Strobel & Cinthia Eichhorn
This protocol is primarily designed to provide a mechanism for monitoring trends in whooping crane abundance on their wintering grounds along the Texas gulf coast. Secondarily, the protocol provides mechanisms for monitoring recruitment rates, the number of whooping crane pairs that recruited young into the winter flock, and whooping crane winter range expansion. Finally, this protocol is designed to augment planning and conservation efforts with information about the relationships among local whooping crane abundance and...

Mapping Extent and Change in Surface Mines Within the United States for 2001 and 2006

William Acevedo Christopher E. Soulard
Researchers with the USGS Western Geographic Science Center and Eros Data Center have developed a semi-automated procedure to map the country's mining footprint and establish a baseline to monitor changes in mine extent over time. The process includes a tool that uses seed points sourced from the US Energy Information Administration (EIA), USGS Mineral Resources Data System (MRDS), and USGS National Land Cover Dataset (NLCD) and recodes patches of barren land that meet a 'distance...

Estimates of soil water deficit during California drought, January 1, 2014

Flint, Lorraine E.; Flint, Alan L.
** September 16, 2014: Because this information has immediate and time-sensitive relevance to public health and welfare owing to the Governor of California's declared drought emergency, it is being released as preliminary information. As preliminary information, it had been reviewed and approved to meet the needs for timely best science, but the methodology is subject to refinement. The information is provided on the condition that neither the U.S. Geological Survey nor the U.S. Government may...

National Fish Habitat Project Locations, 2013

United States Geological Survey-National Fish Habitat Partnership

Dissolved Gas, Environmental Tracer Concentrations, and Lumped Parameter Modeling Results for Groundwater Age Dating in the Glacial Aquifer System, Conterminous United States

John E Solder
This data release documents nine Microsoft Excel tables that contain data for understanding groundwater ages in the Glacial aquifer system. Results for the three sample networks (PAS, principal aquifer study; MSS, modeling support study; FPS, flow path study) are described by three tables each: dissolved gas modeling results, environmental tracer concentrations (tritium, tritiogenic helium-3, sulfur hexafluoride, carbon-14, and radiogenic helium-4), and results for the mean age and age distribution. Tables are labeled by network and...

Biodiversity Information Serving Our Nation (BISON)

Core Science Analytics And Synthesis Program Of The U.S. Geological Survey (USGS)

Wave and Orbital Velocity Model Data for the California Continental Shelf

Erikson, Li H.; Storlazzi, Curt D.; Golden, Nadine E.
The oceanographic processes that disturb the continental shelf include the actions of surface waves, internal waves, and currents (tidal, density, wave-driven, wind-driven, and geostrophic). Because the North Pacific Ocean can generate extremely large surface waves that yield relatively high near-bed wave orbital velocities, wave-generated near-bed currents are often considered to be the dominant mechanism for seabed disturbances along the California coast (Sherwood and others, 1994; Storlazzi and Jaffe, 2002; Storlazzi and others, 2003). In this...

The Southern Megalopolis: Using the past to predict the future of urban sprawl in the Southeast U.S. (Projections Dataset)

Terando, Adam; Costanza, Jennifer; Belyea, Curtis; Dunn, Robert; McKerrow, Alexa; Collazo, Jaime

SARP River Basin Area Size Classification

Arlene Oliverio (TNC), Mark Smith (TNC), Mary Davis (SARP), Emily Granstaff (SARP/USFWS)

Airborne Geophysical Surveys over the 2011 Mineral, Virginia Earthquake Area

Anjana K. Shah
The 2011 moment magnitude (Mw) 5.8 central Virginia earthquake was felt by millions of people and caused significant damage in the eastern United States. As part of efforts to better understand the faults and geologic features associated with the earthquake, the U.S. Geological Survey commissioned airborne geophysical surveys over the epicentral area. Here we present the data from those surveys and summarize research results based on those datasets.

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