Integrated Geologic, Geochemical, and Geophysical Studies of Big Bend National Park, Texas
John E. Gray, Carol A. Finn, Lisa A. Morgan, William R. Page, Wayne C. Shanks
2007, Fact Sheet 2007-3078
Introduction Big Bend National Park (BBNP), Texas, covers 801,163 acres (3,242 km2) and was established in 1944 through a transfer of land from the State of Texas to the United States. The park is located along a 118-mi (190-km) stretch of the Rio Grande at the United States border with Mexico....
Acid rain in Shenandoah National Park, Virginia
Karen C. Rice, Frank A. Deviney, Gordon Olson
2007, Fact Sheet 2007-3057
Visitors to Shenandoah National Park (SNP) enjoy the animal and plant life and the scenery but may not realize how vulnerable these features are to various threats, such as invasion of exotic plants and insects, improper use of park resources by humans, and air and water pollution. The National Park...
Tennessee StreamStats: A Web-Enabled Geographic Information System Application for Automating the Retrieval and Calculation of Streamflow Statistics
David E. Ladd, George S. Law
2007, Fact Sheet 2007-3081
The U.S. Geological Survey (USGS) provides streamflow and other stream-related information needed to protect people and property from floods, to plan and manage water resources, and to protect water quality in the streams. Streamflow statistics provided by the USGS, such as the 100-year flood and the 7-day 10-year low flow,...
Remotely Sensed Data Collections: Offerings from EROS
U.S. Geological Survey
2007, Fact Sheet 2007-3082
The U.S. Geological Survey (USGS) Center for Earth Resources Observation and Science (EROS) maintains a wide variety of remotely sensed data collections that contain a wealth of information about the Earth’s land surfaces. Acquired by special sensors carried aboard civilian satellites and aircraft, the images and other data in these...
USGS Reference Materials Program: Serving the Needs of the Global Analytical Community
Ruth E. Wolf, Stephen A. Wilson
2007, Fact Sheet 2007-3056
Every year in the United States, millions of measurements are made on the chemical composition of items that affect us on a daily basis. The accuracy of these measurements is routinely determined by the analysis of appropriate reference materials. In the field of earth science, reference materials are particularly important...
Assessment of Undiscovered Oil and Gas Resources of the East Greenland Rift Basins Province
Donald L. Gautier
2007, Fact Sheet 2007-3077
Northeast Greenland is the prototype for the U.S. Geological Survey's Circum-Arctic Oil and Gas Resource Appraisal. Using a geology-based methodology, the USGS estimates the mean undiscovered, conventional petroleum resources in the province to be approximately 31,400 MBOE (million barrels of oil equivalent) of oil, gas, and natural gas liquids....
Assessment of undiscovered oil and gas resources in Cretaceous-Tertiary coal beds of the Gulf Coast region, 2007
Peter D. Warwick
2007, Fact Sheet 2007-3039
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 4.06 trillion cubic feet of undiscovered, technically recoverable natural gas in Cretaceous-Tertiary coal beds of the onshore lands and State waters of the Gulf Coast....
Assessment of Undiscovered Oil and Gas Resources of the Illinois Basin, 2007
Christopher S. Swezey
2007, Fact Sheet 2007-3058
Using a geology-based assessment methodology, the U.S. Geological Survey estimated the following quantities of undiscovered, technically recoverable oil and gas resources in the Illinois Basin, USA: (1) a mean of 214 million barrels of oil; (2) a mean of 4.65 trillion cubic feet of natural gas; and (3) a mean of...
Sinkholes
James E. Kaufmann
2007, Fact Sheet 2007-3060
Sinkholes are a common feature in Missouri where limestone and dolomite outcrop. Though often considered a benign nuisance, sudden, catastrophic collapses can destroy property, delay construction projects, and contaminate ground water resources....
New Jersey Tide Telemetry System
Heidi L. Hoppe
2007, Fact Sheet 2007-3064
Each summer the population of the barrier-island communities of New Jersey increases by tens of thousands. When a coastal storm threatens these communities, the limited number of bridges and causeways that connect the islands with the mainland become overcrowded, making evacuations from the barrier islands to the mainland difficult. Timely...
From the River to You: USGS Real-Time Streamflow Information...from the National Streamflow Information Program
Joseph P. Nielsen, J. Michael Norris
2007, Fact Sheet 2007-3043
This Fact Sheet is one in a series that highlights information or recent research findings from the USGS National Streamflow Information Program (NSIP). The investigations and scientific results reported in this series require a nationally consistent streamgaging network with stable long-term monitoring sites and a rigorous program of data, quality...
Detection of viral hemorrhagic septicemia virus
James Winton, Gael Kurath, William Batts
2007, Fact Sheet 2007-3055
Viral hemorrhagic septicemia virus (VHSV) is considered to be one of the most important viral pathogens of finfish and is listed as reportable by many nations and international organizations (Office International des Epizooties 2006). Prior to 1988, VHSV was thought to be limited to Europe (Wolf 1988; Smail 1999). Subsequently,...
Shuttle Radar Topography Mission - New Products in 2005
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2005-3068
In February 2000, the Shuttle Radar Topography Mission (SRTM) successfully collected Interferometric C-Band Synthetic Aperture Radar data over 80 percent of the Earth's land surface, for most of the area between 60?N and 56?S latitude. NASA and the National Geospatial-Intelligence Agency (NGA), formerly known as the National Imagery and Mapping...
Sturgeon research update: Confirmed pallid sturgeon spawning in the Missouri River in 2007
Michael Mac, Gerald Mestl
2007, Fact Sheet 2007-3053
The U.S. Geological Survey (USGS) in partnership with the Nebraska Game and Parks Commission (NGPC) and the U.S. Army Corps of Engineers have confirmed spawning of two female pallid sturgeon in the upstream reaches of the lower Missouri River in May 2007. Combined with supporting research in reproductive physiology, identification...
CLICK: The USGS Center for LIDAR Information Coordination & Knowledge
Jordan C. Menig, Jason M. Stoker
2007, Fact Sheet 2006-3024
While this technology has proven its use as a mapping tool - effective for generating bare earth DEMs at high resolutions (1-3 m) and with high vertical accuracies (15-18 cm) - obstacles remain for its application as a remote sensing tool: * The high cost of collecting LIDAR * The steep learning...
Summary of the Ground-Water-Level Hydrologic Conditions in New Jersey 2006
Walter Jones, Daryll Pope
2007, Fact Sheet 2007-3049
Ground water is one of the Nation's most important natural resources. It provides about 40 percent of our Nation's public water supply. Currently, nearly one-half of New Jersey's drinking-water is supplied by over 300,000 wells that serve more than 4.3 million people (John P. Nawyn, U.S. Geological Survey, written commun.,...
Thermal properties of methane gas hydrates
William F. Waite
2007, Fact Sheet 2007-3041
Gas hydrates are crystalline solids in which molecules of a “guest” species occupy and stabilize cages formed by water molecules. Similar to ice in appearance (fig. 1), gas hydrates are stable at high pressures and temperatures above freezing (0°C). Methane is the most common naturally occurring hydrate guest species. Methane...
Biological conditions in streams of Johnson County, Kansas, and nearby Missouri, 2003 and 2004
Barry C. Poulton, Teresa J. Rasmussen, Casey J. Lee
2007, Fact Sheet 2007-3044
Johnson County is one of the fastest growing and most populated counties in Kansas. Urban development affects streams by altering stream hydrology, geomorphology, water chemistry, and habitat, which then can lead to adverse effects on fish and macroinvertebrate communities. In addition, increasing sources of contaminants in urbanizing streams results in...
USGS Western Coastal and Marine Geology Team
Sam Johnson, Helen Gibbons
2007, Fact Sheet 2007-3050
The Western Coastal and Marine Geology Team of the U.S. Geological Survey (USGS) studies the coasts of the western United States, including Alaska and Hawai‘i. Team scientists conduct research, monitor processes, and develop information about coastal and marine geologic hazards, environmental conditions, habitats, and energy and mineral resources. This information...
Hawaiian Duck's Future Threatened by Feral Mallards
Kimberly J. Uyehara, Andrew Engilis Jr., Michelle Reynolds
2007, Fact Sheet 2007-3047
Nearly 70 percent of Hawaii's native bird species are found nowhere else on Earth, and many of these species are declining or in danger of extinction. Although the Hawaiian Islands were once home to a remarkable diversity of waterfowl, only three species remain-the Hawaiian Goose (Nene), Laysan Duck, and Hawaiian...
Precambrian Time - The Story of the Early Earth
D. A. Lindsey
2007, Fact Sheet 2007-3004
The Precambrian is the least-understood part of Earth history, yet it is arguably the most important. Precambrian time spans almost nine-tenths of Earth history, from the formation of the Earth to the dawn of the Cambrian Period. It represents time so vast and long ago that it challenges all comprehension. The...
Geohydrologic Framework of the Edwards and Trinity Aquifers, South-Central Texas
Charles D. Blome, Jason R. Faith, George B. Ozuna
2007, Fact Sheet 2006-3145
This five-year USGS project, funded by the National Cooperative Geologic Mapping Program, is using multidisciplinary approaches to reveal the surface and subsurface geologic architecture of two important Texas aquifers: (1) the Edwards aquifer that extends from south of Austin to west of San Antonio and (2) the southern part of...
Boiling water at Hot Creek— The dangerous and dynamic thermal springs in California’s Long Valley Caldera
Christopher D. Farrar, William C. Evans, Dina Y. Venezky, Shaul Hurwitz, Lynn K. Oliver
2007, Fact Sheet 2007-3045
The beautiful blue pools and impressive boiling fountains along Hot Creek in east-central California have provided enjoyment to generations of visitors, but they have also been the cause of injury or death to some who disregarded warnings and fences. The springs and geysers in the stream bed and along its...
Availability of Ground-Water Data for California, Water Year 2006
Julia A. Huff
2007, Fact Sheet 2007-3038
Introduction The U.S. Geological Survey, Water Resources, in cooperation with Federal, State, and local agencies, obtains a large amount of data pertaining to the ground-water resources of California each water year (October 1-September 30). These data constitute a valuable database for developing an improved understanding of the water resources of the...
Increasing the Resilience to Natural Hazards in Southern California
Lucile Jones, Dale A. Cox
2007, Fact Sheet 2007-3037
Southern California is at great risk for extreme catastrophic losses owing to numerous natural hazards, such as earthquakes, wildfires, floods, tsunamis, landslides and coastal changes, that occur in this area (fig. 1). Expected losses from these hazards are estimated to exceed $3 billion per year in the eight counties of...
