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Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 974
Surface water discharge and salinity monitoring of coastal estuaries in Everglades National Park, USA, in support of the Comprehensive Everglades Restoration Plan Surface water discharge and salinity monitoring of coastal estuaries in Everglades National Park, USA, in support of the Comprehensive Everglades Restoration Plan
Discharge and salinity were measured along the southwest and the southeast coast of Florida in Everglades National Park (ENP) within several rivers and creeks from 1996 through 2008. Data were collected using hydro-acoustic instruments and continuous water-quality monitors at fixed monitoring stations. Water flowed through ENP within two distinct drainage basins; specifically, Shark...
Authors
Jeff Woods
The Colorado Plateau IV: shaping conservation through science and management The Colorado Plateau IV: shaping conservation through science and management
Roughly centered on the Four Corners region of the southwestern United States, the Colorado Plateau covers some 130,000 square miles of sparsely vegetated plateaus, mesas, canyons, arches, and cliffs in Arizona, Utah, Colorado, and New Mexico. With elevations ranging from 3,000 to 14,000 feet, the natural systems found within the plateau are dramatically varied, from desert to alpine...
Authors
Brian F. Wakeling, Thomas D. Sisk
Paddlefish management, propagation, and conservation in the 21st century Paddlefish management, propagation, and conservation in the 21st century
No abstract available.
Authors
Craig P. Paukert, George D. Scholten
Preservation of random megascale events on Mars and Earth: Influence on geologic history: GSA special papers Preservation of random megascale events on Mars and Earth: Influence on geologic history: GSA special papers
No abstract available.
Authors
Mary G. Chapman, Laszlo P. Keszthelyi
Viscoelastic waves in layered media Viscoelastic waves in layered media
No abstract available.
Authors
Roger D. Borcherdt
Coastal wetlands: an integrated ecosystem approach Coastal wetlands: an integrated ecosystem approach
Coastal wetlands are under a great deal of pressure from the dual forces of rising sea level and the intervention of human populations both along the estuary and in the river catchment. Direct impacts include the destruction or degradation of wetlands from land reclamation and infrastructures. Indirect impacts derive from the discharge of pollutants, changes in river flows and sediment...
Geology and resources of some world oil-shale deposits Geology and resources of some world oil-shale deposits
Oil-shale deposits are in many parts of the world. They range in age from Cambrian to Tertiary and were formed in a variety of marine, continental, and lacustrine depositional environments. The largest known deposit is in the Green River Formation in the western United States; it contains an estimated 213 billion tons of in-situ shale oil (about 1.5 trillion U.S. barrels). Total...
Authors
John R. Dyni
Application of the SHOALS survey system to fisheries investigations in the Columbia River Application of the SHOALS survey system to fisheries investigations in the Columbia River
We used a Scanning Hydrographic Operational Airborne LiDAR (Light Detection and Ranging) Survey (SHOALS) system to collect high-resolution bathymetry for 33 km of the Hanford Reach. Data were used in conjunction with hydrodynamic and predictive habitat models within a GIS (Geographical Information System) framework to evaluate the effects of a varying hydrograph on juvenile fall Chinook...
Authors
Kenneth F. Tiffan, Paul G. Wagner, Keith S. Wolf, Paul A. Hoffarth
Movement triggers and remediation in a fracture-dominated translational landslide at the Oregon coast Movement triggers and remediation in a fracture-dominated translational landslide at the Oregon coast
The Johnson Creek landslide is a translational slide in seaward dipping Miocene siltstone and sandstone (Astoria Formation) and an overlying Quaternary marine terrace deposit. The slide terminates in a sea cliff and has a hummocky to nearly horizontal ground surface. The basal slide plane, however, slopes subparallel to the dip of the Miocene rocks, except beneath the back-tilted toe...
Authors
George R. Priest, Jonathan Allan, Alan Niem, Wendy A. Niem, Stephen E. Dickenson
African desert dust in the Amazon Basin: implications for human and ecosystem health African desert dust in the Amazon Basin: implications for human and ecosystem health
No abstract available.
Authors
Dale W. Griffin
Landscape features, standards, and semantics in U.S. national topographic mapping databases Landscape features, standards, and semantics in U.S. national topographic mapping databases
The objective of this paper is to examine the contrast between local, field-surveyed topographical representation and feature representation in digital, centralized databases and to clarify their ontological implications. The semantics of these two approaches are contrasted by examining the categorization of features by subject domains inherent to national topographic mapping. When...
Authors
Dalia Varanka
A topographic feature taxonomy for a U.S. national topographic mapping ontology A topographic feature taxonomy for a U.S. national topographic mapping ontology
Using legacy feature lists from the U.S. National Topographic Mapping Program of the twentieth century, a taxonomy of features is presented for purposes of developing a national topographic feature ontology for geographic mapping and analysis. After reviewing published taxonomic classifications, six basic classes are suggested; terrain, surface water, ecological regimes, built-up areas
Authors
Dalia E. Varanka