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See also Science in your back yard: Texas

Results 1 - 62 of 69 listed alphabetically [list by similarity]
PDF Annual peak streamflow and ancillary data for small watersheds in central and western Texas [More info]
Estimates of annual peak-streamflow frequency are needed for flood-plain management, assessment of flood risk, and design of structures, such as roads, bridges, culverts, dams, and levees.
Assessing Groundwater Availability in the High Plains Aquifer in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming [More info]
Explains concepts and methods used to determine the likely future supply of usable water in this major aquifer.
Assessing the vulnerability of public-supply wells to contamination--Edwards aquifer near San Antonio, Texas [More info]
Well vulnerability results from the young age of groundwater. Karst features permit contaminants to move into the aquifer easily, leading to a well mixed aquifer; geochemical processes do not degrade contaminants quickly.
PDF Assessment of Undiscovered Oil and Gas Resources in Cretaceous-Tertiary Coal Beds of the Gulf Coast Region, 2007 [More info]
We estimated a mean of 4.06 trillion cubic feet of undiscovered, technically recoverable natural gas in these coal beds of the onshore lands and State waters of the Gulf Coast.
PDF Assessment of Undiscovered Oil and Gas Resources in Tertiary Strata of the Gulf Coast, 2007 [More info]
We estimated mean undiscovered resources of 113.7 trillion cubic feet of natural gas, a mean of 690 million barrels of oil, and a mean of 3.7 billion barrels of natural gas liquids in onshore lands and state waters in this area.
PDF Assessment of Undiscovered Oil and Gas Resources of the Permian Basin Province of West Texas and Southeast New Mexico, 2007 [More info]
We estimated a mean of 41 trillion cubic feet of undiscovered natural gas and a mean of 1.3 billion barrels of undiscovered oil in this area using a geology-based assessment methodology.
Assessment of potential coastal impacts: Hurricane Rita [More info]
Areas susceptible to inundation during landfall of Hurricane Rita are assessed by comparing lidar-derived dune elevations to simulated storm surge values. Results shown on pictorial maps.
PDF Assessment of remaining recoverable oil in selected major oil fields of the Permian Basin, Texas and New Mexico [More info]
The mean total volume of potential additional oil resources that might be added using improved oil-recovery technologies was estimated to be about 2.7 billion barrels of oil.
Assessment of undiscovered oil and gas resources in Jurassic and Cretaceous strata of the Gulf Coast, 2010 [More info]
We estimated means of 147.4 trillion cubic feet of undiscovered natural gas, 2.4 billion barrels of undiscovered oil, and 2.96 billion barrels of undiscovered natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011 [More info]
We estimated the volume of oil, natural gas, and natural gas liquids in three closely related geologic units in this area using a geology based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Anadarko Basin Province of Oklahoma, Kansas, Texas, and Colorado, 2010 [More info]
We estimated mean technically-recoverable undiscovered continuous and conventional resources that total 495 million barrels of oil, 27.5 trillion cubic feet of natural gas, and 410 million barrels of natural gas liquids in this area.
Biomarker Benchmarks: Reproductive and Endocrine Biomarkers in Largemouth Bass and Common Carp from United States Waters [More info]
Describes a national reconnaissance study of reproductive health in two species of fish across the US. More than 2,200 common carp and 650 largemouth bass were collected at 119 rivers and streams.
PDF Burrowing owls winter in south Texas [More info]
Experimental use of artificial burrows in south Texas to help in conservation of the migratory burrowing owls (Athene cunicularia) that breed in dry grasslands using animal burrows.
PDF Changes in Water Levels and Storage in the High Plains Aquifer, Predevelopment to 2007 [More info]
Summarizes changes in water levels and drainable water in storage in the High Plains aquifer from predevelopment (before about 1950) to 2007.
PDF Changes in water levels and storage in the High Plains Aquifer, predevelopment to 2009 [More info]
Summarizes graphically the areas where water levels have dropped, and by how much, in this extensive underground water reservoir that covers several states in the mid-continent.
PDF Chloride control and monitoring program in the Wichita River Basin, Texas, 1996-2009 [More info]
Chloride concentrations in this river have historically been high due to natural saltwater springs and seeps from geologic formations. We monitor the water to help assess the progress of human efforts designed to mitigate this problematic salinity.
Data for giant constrictors - Biological management profiles and an establishment risk assessment for nine large species of pythons, anacondas, and the boa constrictor [More info]
Locations for nine species of large constrictors, from published sources, along with monthly precipitation and average monthly temperature for those locations. Shapefiles for each snake species studied.
Edwards Aquifer online resources [More info]
Recharge and discharge summaries and other data, aeromagnetic survey map, and publications on Edwards Aquifer, Texas.
PDF Effects of brush management on the hydrologic budget and water quality in and adjacent to Honey Creek State Natural Area, Comal County, Texas, 2001--10 [More info]
Comparison of water in two adjacent watersheds before and after implementing a brush management strategy in one of the watersheds helps us see what water resource characteristics are sensitive to brush management and how.
PDF Enhancement of USGS scientific investigations in Texas by using geophysical techniques, 2005-10 [More info]
Annotated bibliography describing the use of electromagnetic surveying to understand the characteristics of aquifers and how they work.
PDF Evaluating the variability of sediment and nutrient loading from riverine systems into Texas estuaries and bays [More info]
Some results from a study of the variability of sediment and nutrient loads in the lower reaches of the Trinity River during a variety of hydrologic conditions.
PDF Evolution of 3-D geologic framework modeling and its application to groundwater flow studies [More info]
Methods to depict the connectedness of rock units across fault and fracture zones, allowing us to determine the distribution of geologic units, structural features, and other controlling factors, such as porosity and permeability.
Field methods: capture and marking of pintails [More info]
Method of tracking pintail ducks by capturing with rocket nets or swim-in traps and attaching telemetry devices that allow satellite tracking. Includes video of rocket nets.
Geochemical and mineral maps from soils of the conterminous United States [More info]
Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
Geospatial Multi-Agency Coordination (GeoMAC) wildland fire perimeters, 2008 [More info]
Where the fires were, as GIS data in shapefile format, geographic coordinates, NAD83.
Ground-water data for Texas [More info]
Consistent, historic, and up-to-date ground-water data, such as water levels collected at wells and springs, are available from the USGS National Water Information System as graphs, tables, or files to download.
Gulf Coast Framework Studies Home Page [More info]
Provides geologic, geophysical, and geochemical framework studies that will aid in a reassessment of energy commodities (coal, gas, and oil) in the Gulf Coast Region.
Historical streamflows of Double Mountain Fork of Brazos River and water-surface elevations of Lake Alan Henry, Garza County, Texas, water years 1962-2010 [More info]
Shows graphs illustrating available data from two surface-water monitoring stations near this reservoir supplying water for the city of Lubbock.
PDF Integrated geologic, geochemical, and geophysical studies of Big Bend National Park, Texas [More info]
Coordinated studies of the effect of historical mining for mercury, origin and composition of metals in groundwaters and surface waters, history of volcanic and intrusive activity, and the complex geological history of this area.
Land Subsidence in the United States [More info]
Describes and provides several detiled examples of impacts of human-induced land subsidence resulting from the extraction of subsurface water, including aquifer-system compaction, drainage of organic soils, dissolution and collapse of susceptible rocks.
PDF Land-cover change research at the U.S. Geological Survey-assessing our nation's dynamic land surface [More info]
Estimates of change in major types of land use and land cover from 1973 to 2000 should help model potential future change as climate, population, public policy, and technology change.
Mapping Partnership Office of Texas [More info]
Guide to the cooperative mapping programs in the state of Texas administered by the USGS Texas Mapping Partnership Office. Provides description of ongoing projects with links to USGS and cooperator datasets for the state of Texas.
Measuring human-induced land subsidence from space [More info]
Examples of the use of Satellite Interferometric Synthetic Aperture Radar to measure and map changes on the Earth's surface as an aid to understanding how ground-water pumping, hydrocarbon production, or other human activities cause land subsidence.
PDF Methods for estimating concentrations and loads of selected constituents in tributaries to Lake Houston near Houston, Texas [More info]
Water from this reservoir will be used more extensively by the city, so we are developing methods of assessing the water quality in real time by measuring characteristics of stream flow that correlate with important water quality data.
National Assessment of Shoreline Change Project [More info]
The Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is conducting an analysis of historical shoreline changes along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii.
PDF Net Ecosystem Production (NEP) of the Great Plains, United States [More info]
Geographic analysis of the changes in storage and release of carbon in this large area as land use patterns, especially agriculture, have changed.
PDF Nitrate concentrations and potential sources in the Barton Springs segment of the Edwards aquifer and its contributing zone, Central Texas [More info]
The area contributing recharge to this aquifer is undergoing rapid growth, generating more wastewater. We found that nitrate, a major component of wastewater and a nutrient that can degrade water quality, has increased in the creeks in this area.
PDF Occurrence, distribution, and concentrations of selected contaminants in streambed- and suspended-sediment samples collected in Bexar County, Texas, 2007-09 [More info]
Study showing which chemicals found in sediments were most common, with methods used and likely consequences of their high concentrations.
Online assessment of hydrologic conditions in Texas [More info]
Brief summaries of USGS projects in Texas including water quality monitoring, digital mapping, energy resources, U.S.-Mexico border mapping, fish and wildlife health, Kemp's Ridley sea turtle, and conditions affecting water quality.
PDF Organic compounds in Elm Fork Trinity river water used for public supply near Carrollton, Texas, 2002-05 [More info]
We identified six compounds at concentrations less than human-health benchmarks, but within a factor of 10 of those limits. Those compounds might warrant further study to understand their transport and fate within the watershed.
PDF Plague [More info]
History, pathology, and prospects for this historic disease that is still prevalent in animals and remains a threat to humans.
Real-time water data for Texas [More info]
Consistent, real-time water data from streams, lakes, reservoirs, ground-water, and meteorological sites, are available from the USGS National Water Information System as graphs, tables, or files to download.
Recommended methods for range-wide monitoring of prairie dogs in the United States [More info]
One of the greatest challenges for conserving grassland, prairie scrub, and shrub-steppe ecosystems is maintaining prairie dog populations across the landscape. Of the four species of prairie dogs found in the United States, the Utah prairie dog (Cynomys
PDF Regional assessments of the Nation's water quality--Improved understanding of stream nutrient sources through enhanced modeling capabilities [More info]
Studies of the sources, transport, and fate of nutrients in the streams of six major regions of the conterminous United States.
PDF Science to support the understanding of south Texas surface-water and groundwater resources in a changing landscape [More info]
Short descriptions of the research and monitoring activities we are carrying out to assist state, local, and Federal agencies dealing with water resource issues in the southern part of the state.
PDF Sound data management as a foundation for natural resources management and science [More info]
Arguments in favor of using formal database technology, expecially geodatabases, to manage scientific information, with examples from Texas.
PDF Streamflow of 2007--Water year summary [More info]
A broad survey of regional patterns in stream flow nationwide. Maps and graphs summarizing streamflow conditions for water-year 2007 (October 1, 2006 to September 30, 2007) in the context of the 78-year period 1930-2007.
Streamflow of 2008--Water year summary [More info]
A broad survey of regional patterns in stream flow nationwide. Maps and graphs summarizing streamflow conditions for water-year 0810 (October 1, 2007 to September 30, 2008) in the context of the 79-year period 1930-2008.
Streamflow of 2009--Water year summary [More info]
A broad survey of regional patterns in stream flow nationwide. Maps and graphs summarizing streamflow conditions for water-year 2009 (October 1, 2008 to September 30, 2000) in the context of the 80-year period 1930-2009.
Streamflow of 2010--Water year summary [More info]
A broad survey of regional patterns in stream flow nationwide. Maps and graphs summarizing streamflow conditions for water-year 2010 (October 1, 2009 to September 30, 2010) in the context of the 81-year period 1930-2010.
PDF Streamflow of 2011 - Water Year Summary [More info]
A broad survey of regional patterns in stream flow nationwide. Maps and graphs summarizing streamflow conditions for water-year 2011 (October 1, 2010 to September 30, 2011) in the context of the 82-year period 1930-2011.
PDF Summary of estimated water use in the United States in 2010 [More info]
About 355,000 million gallons per day of water was withdrawn for use in the United States during 2010, a decline of 13 percent from 2005 and a substantial change from the level of about 400,000 reported from 1985 to 2005.
Surface-water data for Texas [More info]
Consistent, historic, and up-to-date surface-water data, such as gage height (stage) and streamflow (discharge), collected at major rivers, lakes, and reservoirs, downloadable from the USGS National Water Information System as graphs, tables, or files.
PDF The 3D Elevation Program: summary for Texas [More info]
Summarizes the expected value over the next decade of the 3D Elevation Program for this state
U.S. - Mexico Border Environmental Health Initiative: interactive maps [More info]
Geographic and scientific information focused on health issues in the area of the US-Mexico border
PDF U.S. Department of the Interior South Central Climate Science Center [More info]
Explains the goals and strategies to be pursued by this organizational unit of the USGS along with partners and stakeholders.
PDF U.S. Geological Survey archived data recovery in Texas, 2008-11 [More info]
Our 2008-11 data rescue and recovery efforts resulted in an efficient workflow process, database, and Web user interface for scientists and citizens to access archived environmental information not previously available to the public.
PDF USGS Hydro-Climatic Data Network 2009 (HCDN?2009) [More info]
This updated subset of USGS streamgages for which the streamflow primarily reflects prevailing meteorological conditions for specified years, screened to exclude sites where human activity affects the natural flow of the watercourse.
USGS National Map of Surficial Mineralogy [More info]
Maps of exposed surface mineral groups derived from automated spectral analysis of satellite and airborne imaging systems; these data suggest areas that may contain mineral deposits of various types.
PDF USGS Zebra Mussel Monitoring Program for north Texas [More info]
General characteristics of this invasive freshwater mollusk, focusing on how we monitor its presence and migration through this region.
USGS activities in Texas: Texas sites by basin [More info]
Real-time water data, interactive maps, and flood reports for river basins in Texas.
USGS responds to hurricanes [More info]
Information is provided about coastal impacts of Katrina, Rita, and Wilma and Satellite Imagery and other Geospatial Data, News Releases, Streamflow Conditions, publications and other resources.
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