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The Southwest Region ranges from the Colorado Rockies to the Gulf Coast and the Western Deserts to the Great Plains. The Southwest Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

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Filter Total Items: 53
Date published: July 26, 2016
Status: Active

HDgov: Multi-agency Website for Human Dimensions of Natural Resources

HDgov is an interactive and mobile-responsive online portal to interagency, academic, and non-government resources focused on the human dimensions of natural resource management. The web portal provides easy access to tools, publications, data, and methods that help ensure that the people side of natural resources is considered throughout the entire natural resource management process. The...

Date published: July 26, 2016
Status: Active

National Park Service Visitor Spending Effects

The National Park Service (NPS) manages the Nation’s most iconic destinations that attract millions of visitors from across the Nation and around the world. Trip-related spending by NPS visitors generates and supports a considerable amount of economic activity within park gateway communities. USGS economists collaborate with the National Park Service social science program to estimate NPS...

Date published: July 21, 2016
Status: Active

Using Quantile Regression to Investigate Ecological Limiting Factors

Unexplained heterogeneity in statistical models of animal responses to their physical environment is reasonable to expect because the measured habitat resources are a constraint on—but not the sole determinant of—abundance, survival, fecundity, or fitness. The ecological understanding and reliability of management predictions based on animal habitat models can be improved by shifting focus ...

Date published: July 21, 2016
Status: Active

North American Waterfowl Management Plan

The ultimate success of North American Waterfowl Management Plan (NAWMP) depends on maintaining relevance to stakeholders and society. In order to be relevant, a first step is to better understand what people value in regard to waterfowl and their habitats. 

Date published: July 19, 2016
Status: Completed

Quantitative and Statistical Research Collaboration

Mathematical and statistical models are powerful research tools that play several important roles in conceptualizing and understanding the structure and dynamics of complicated ecological systems, including developing mechanistic hypotheses pertaining to ecological systems, designing studies that elucidate ecosystem structure and function, and extracting information from data.

Date published: June 22, 2016

Status and Trends of Emergent Wetlands in the Northern Gulf of Mexico: 1950-2010

Throughout the past century, emergent wetlands have been declining across the Gulf of Mexico. Emergent wetland ecosystems provide a plethora of resources including plant and wildlife habitat, commercial and recreational economic activity, water quality, and natural barriers against storms.

Contacts: Kathryn Spear
Date published: June 12, 2016
Status: Active

Rio Grande Transboundary Integrated Hydrologic Model: Modeling Conjunctive Use to Support Resource Management

The Palomas, Mesilla, and Conejos-Médanos Basins in New Mexico, Texas, and northern Mexico compose a geologically and hydrologically complex region. The conjunctive use of surface water and groundwater takes place under a myriad of legal and operational constraints, including the Rio Grande Compact, an international treaty, and the U.S. Bureau of Reclamation’s Rio Grande Project. New demands...

Contacts: Andre Ritchie
Date published: June 2, 2016
Status: Active

Paddlefish Tracking Map - Visualizing U.S. Fish and Wildlife Service Tower and Boat Observational Data

Partnering with the Caddo Lake Institute, the USGS WARC Advanced Applications Team developed a web-based mapping application that visualizes the paddlefish tracking observations being collected by FWS.

Date published: May 11, 2016
Status: Completed

Effect of Hurricane Wrack Deposition on Coastal Marsh Surface Elevation Change

Storm surge waves and tides of hurricanes have the propensity to wash up marsh detritus of dead reeds and leaf debris along with plastic trash and lumber, commonly referred to as wrack, from overwashed beaches, marshes, forests, streets, and lawns.

Date published: April 17, 2016
Status: Active

Mangrove Migration Network

At the poleward marsh-mangrove ecotone, mangrove abundance and coverage is winter temperature-sensitive in that it oscillates in response to the frequency, duration, and/or intensity of extreme winter temperatures. Future winter climate change is expected to facilitate poleward mangrove range expansion at the expense of salt marshes in Texas, Louisiana, and parts of Florida. 

Date published: April 16, 2016
Status: Active

GIS and Custom Application Support for the Gulf Coast Ecosystem Restoration Council

The scientists at the Wetland and Aquatic Science Center (WARC) have provided coastal restoration project managers and decision makers with GIS planning, database and custom application capacity since 1992. The scope and complexity of this support has increased over the years and has resulted in the development of a comprehensive geospatial and advanced application teams that provide decision...

Filter Total Items: 279
Image shows a drill rig and vehicles near a road at dawn
April 17, 2018

Eagle Ford Test Well Drilling in Texas

USGS researchers drill a research well located on the south side of U.S. 90, 7.1 miles east of Brackettville, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The borehole, core, and logging

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Photograph showing the Blanco River Valley, looking north from Little Arkansas Road, Hays County, Texas.
February 27, 2018

Blanco River Valley

Photograph showing the Blanco River Valley, looking north from Little Arkansas Road, Hays County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).
U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418.

Photograph showing a low water crossing on the Blanco River
February 27, 2018

Low water crossing on the Blanco River, Hays County, Texas

Photograph showing a low water crossing on the Blanco River, looking south from Little Arkansas Road, Hays County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).
U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418.

Photograph showing swimming hole on Cypress Creek
February 27, 2018

Swimming hole on Cypress Creek in Blue Hole Regional Park, Wimberley

Photograph showing swimming hole on Cypress Creek in Blue Hole Regional Park, Wimberley, Hays County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).
U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418.

Conglomerates within the Sycamore Sand at Hammetts Crossing
February 27, 2018

Conglomerates, Sycamore Sand at Hammetts Crossing, Travis Cty, Texas

Conglomerates within the Sycamore Sand at Hammetts Crossing, Travis County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).
U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418

Bedding plane porosity
February 27, 2018

Bedding plane porosity in fracture at Cow Creek Limestone

Bedding plane porosity that developed at the junction between the bedding plane and a fracture within the Cow Creek Limestone (Cow Creek hydrostratigraphic unit) at Hammetts Crossing, Travis County, Texas (photograph by Allan K. Clark, U.S. Geological Survey, February 27, 2018).

U.S. Geological Survey Scientific Investigations Map 3418,

...
Jacobs Well Spring
February 27, 2018

Jacobs Well Spring, headwaters of Cypress Creek, Wimberley, Tex.

Jacobs Well Spring, which forms the headwaters of Cypress Creek north of Wimberley, Texas (photograph by Allan K. Clark,
U.S. Geological Survey, February 27, 2018).

U.S. Geological Survey Scientific Investigations Map 3418, https://doi.org/10.3133/sim3418

Photograph showing Comal 1 spring run
December 31, 2017

Comal 1 spring run

Back cover photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report 2018–

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Photograph showing nitrate sensor at the Frio River at Concan, Tex.
December 31, 2017

Nitrate sensor at the Frio River at Concan, Tex.

Back cover photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report 2018–

...
Photograph showing Comal spring run
December 31, 2017

Comal spring run

Cover background photo from
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

...
Photograph showing Frio Stilling well
December 31, 2017

Frio Stilling well

Photo from pages 8 and 9 of
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

...
Photograph showing dry Frio below Concan
December 31, 2017

Dry Frio below Concan

Photograph from page 19 of
Opsahl, S.P., Musgrove, M., Mahler, B.J., and Lambert, R.B., 2018, Water-quality observations of the San Antonio segment of the Edwards aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010–16: U.S. Geological Survey Scientific Investigations Report

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Filter Total Items: 165
Photo of a young girl drinking water, which likely originated from groundwater sources. 
December 7, 2017

A regional assessment of untreated groundwater in the Rio Grande aquifer system, which includes parts of Colorado, New Mexico and Texas, is now available from the U.S. Geological Survey.

Image shows a detail shot of finchite
October 1, 2017

Everyone’s seen the news–scientists discover a new species of fly and name it for Beyonce; scientists discover a new species of monkey and auction its name off; etc. Hundreds of new species of animals, plants, and other organisms are discovered and named every year. But did you know that dozens of minerals are discovered every year too?

Photo Highlighting Predicted Erosion and Inundation areas in Texas
September 15, 2017

Pre- and post-storm photo comparisons using NOAA imagery

Image: Rio Grande and Cliffs in Boquillas Canyon, Big Bend National Park
September 14, 2017

A new U.S. Geological Survey report describes the below ground geology of the Rio Grande transboundary region of New Mexico and Texas, United States, and northern Chihuahua, Mexico.

USGS scientists J. Alton Anderson and Carole D. Johnson prepare to collect a Nuclear Magnetic Resonance (NMR) log at a well.
September 13, 2017

Digital borehole geophysical logs and related data files are now easily accessible through GeoLog Locator a new web-based, map view and retrieval tool developed by the U.S. Geological Survey.

USGS scientist David Rodriguez records high water marks from storm surge following Harvey near Corpus Christi, Texas. 
September 8, 2017

Editor’s note: this news release will be updated online with more information on the streamgage records being set in Texas as it becomes available.

Rivers and streams reached record levels as a result of Hurricane Harvey’s rainfall, with about 40 U.S. Geological Survey streamgages measuring record peaks.

Satellite captured image of the rapidly intensifying storm, Harvey
September 8, 2017

As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.

A USGS crew measures flood waters off a bridge.
August 30, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Harvey, visit the USGS Hurricane Harvey page.

A USGS crew prepares to measure Hurricane Harvey floodwaters off of a bridge.
August 29, 2017

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista or Lynne Fahlquist. 

U.S. Geological Survey field crews are measuring record flooding in parts of south-central Texas following intense rainfall from Tropical Storm Harvey.

A USGS crew prepares to measure Hurricane Harvey floodwaters off of a bridge.
August 29, 2017

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista or Lynne Fahlquist. 

U.S. Geological Survey field crews are measuring record flooding in parts of south-central Texas following intense rainfall from Tropical Storm Harvey.

Filter Total Items: 81