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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters 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: 6173
Streamflow changes in the Sierra Nevada, California, simulated using a statistically downscaled general circulation model scenario of climate change Streamflow changes in the Sierra Nevada, California, simulated using a statistically downscaled general circulation model scenario of climate change
Simulations of future climate using general circulation models (GCMs) suggest that rising concentrations of greenhouse gases may have significant consequences for the global climate. Of less certainty is the extent to which regional scale (i.e., sub-GCM grid) environmental processes will be affected. In this chapter, a range of downscaling techniques are critiqued. Then a relatively...
Authors
Robert L. Wilby, Michael D. Dettinger
Nitrogen biogeochemistry and surface-subsurface exchange in streams Nitrogen biogeochemistry and surface-subsurface exchange in streams
No abstract available.
Authors
John H. Duff, Frank J. Triska
Regional versus floodplain perspectives on flood management in the Upper Mississippi River Basin Regional versus floodplain perspectives on flood management in the Upper Mississippi River Basin
No abstract available.
Authors
Gary E. Freeman, Ann G. Frazier, John A. Kelmelis
Near surface infiltration monitoring neutron moisture logging, Yucca Mountain, Nevada Near surface infiltration monitoring neutron moisture logging, Yucca Mountain, Nevada
No abstract available.
Authors
A. L. Flint, L. E. Flint
Applications of imaging spectroscopy data: A case study at Summitville, Colorado Applications of imaging spectroscopy data: A case study at Summitville, Colorado
From 1985 through 1992, the Summitville open-pit mine produced gold from lowgrade ore using cyanide heap-leach techniques, a method to extract gold whereby the ore pile is sprayed with water containing cyanide, which dissolves the minute gold grains. Environmental problems due to mining activity at Summitville include significant increases in acidic and metal-rich drainage from the site...
Authors
Trude King, Roger N. Clark, Gregg A. Swayze
Verification of remotely sensed data Verification of remotely sensed data
Ground or field checks are an important part of any remote sensing study and are necessary to provide an accurate and useful interpretive product. Field checking is necessary to confirm the validity of spectral, spatial, and morphological interpretations. In general, field checking should be done during all stages of any type of a remote sensing investigation. The methods and magnitude...
Authors
Trude King, Roger N. Clark
Synthesis of crustal seismic structure and implications for the concept of a slab gap beneath coastal California Synthesis of crustal seismic structure and implications for the concept of a slab gap beneath coastal California
No abstract available.
Authors
Thomas M. Brocher, Uri S. ten Brink, Tanni Abramovitz
Detrital zircon geochronology of upper Paleozoic and lower Mesozoic strata of the northern Sierra Terrane, northeastern California Detrital zircon geochronology of upper Paleozoic and lower Mesozoic strata of the northern Sierra Terrane, northeastern California
No abstract available.
Authors
Matthew S. Spurlin, George E. Gehrels, David S. Harwood
High-temperature quartz cement and the role of stylolites in a deep gas reservoir, Spiro Sandstone, Arkoma Basin, USA High-temperature quartz cement and the role of stylolites in a deep gas reservoir, Spiro Sandstone, Arkoma Basin, USA
The Spiro Sandstone, a natural gas play in the central Arkoma Basin and the frontal Ouachita Mountains preserves excellent porosity in chloritic channel-fill sandstones despite thermal maturity levels corresponding to incipient metamorphism. Some wells, however, show variable proportions of a late-stage, non-syntaxial quartz cement, which post-dated thermal cracking of liquid...
Authors
Richard H. Worden, Sadoon Morad, C. Spotl, D.W. Houseknecht, L.R. Riciputi
Tectonic implications of detrital zircon data from Paleozoic and Triassic strata in western Nevada and Northern California Tectonic implications of detrital zircon data from Paleozoic and Triassic strata in western Nevada and Northern California
No abstract available.
Authors
George E. Gehrels, William R. Dickinson, Brian Darby, James P. Harding, Jeffrey D. Manuszak, Brook C. D. Riley, Matthew S. Spurlin, Stanley C. Finney, Gary H. Girty, David S. Harwood, M. Meghan Miller, Joseph I. Satterfield, Moira T. Smith, Walter S. Snyder, E. Timothy Wallin, Sandra J. Wyld