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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.
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: 975
Birds--A Guide to Familiar American Birds Birds--A Guide to Familiar American Birds
No abstract available.
Authors
H.S. Zim, I.N. Gabrielson, C.S. Robbins
Debris flow/avalanches: Process, recognition, and mitigation Debris flow/avalanches: Process, recognition, and mitigation
No abstract available.
Authors
John E. Costa, G. F. Wieczorek
The Global Importance of Type C Botulism in Wild Birds The Global Importance of Type C Botulism in Wild Birds
No abstract available.
Authors
W. I. Jensen, J.I. Price
The Parrots of Luquillo: Natural History and Conservation of the Puerto Rican Parrot The Parrots of Luquillo: Natural History and Conservation of the Puerto Rican Parrot
No abstract available.
Authors
N.F.R. Snyder, J. W. Wiley, C. B. Kepler
World resources of crude oil, natural gas, natural bitumen, and shale oil World resources of crude oil, natural gas, natural bitumen, and shale oil
No abstract available.
Authors
C.D. Masters, Emil D. Attanasi, William D. Dietzman, R. F. Meyer, R.W. Mitchell, D. H. Root
Felsic plutonic rocks and associated mineralization of the Kingdom of Saudi Arabia Felsic plutonic rocks and associated mineralization of the Kingdom of Saudi Arabia
No abstract available.
Authors
A.R. Drysdall
Recent developments in hydrologic instrumentation Recent developments in hydrologic instrumentation
The programs of the U.S. Geological Survey require instrumentation for collecting and monitoring hydrologic data in cold regions. The availability of space-age materials and implementation of modern electronics and mechanics is making possible the recent developments of hydrologic instrumentation, especially in the area of measuring streamflow under ice cover. Material developments...
Authors
Vito J. Latkovich, James C. Futrell
Sediment transport simulation in an armoured stream Sediment transport simulation in an armoured stream
Improved methods of calculating bed material stability and transport must be developed for a gravel bed stream having an armoured surface in order to use the HEC-6 model to examine channel change. Good possibilities exist for use of a two layer model based on the Schoklitsch and the Einstein-Brown transport equations. In Einstein-Brown the D35 of the armour is used for stabilities and...
Authors
Robert T. Milhous, Jeffrey B. Bradley, Cindy L. Loeffler
Geology of the Harrisonburg and Bridgewater quadrangles, Virginia Geology of the Harrisonburg and Bridgewater quadrangles, Virginia
The Harrisonburg and Bridgewater quadrangles comprise an area of approximately 117 square miles in Rockingham County in northwestern Virginia.This area is in the western part of the Shenandoah Valley, a portion of the Valley and Ridge physiographic province, and contains parts of three major geologic structures-the Staunton and North Mountain thrust faults and the Massanutten...
Authors
Thomas M. Gathright, Peter S. Frischmann
Demographic structure of chaparral under extended fire-free conditions Demographic structure of chaparral under extended fire-free conditions
No abstract available.
Authors
Jon E. Keeley, A. Brooks, T. Bird, S. Cory, H. Parker, E. Usinger
Demographic patterns of the shrub Ceanothus megacarpus in an old stand of chaparral in the Santa Monica Mountains Demographic patterns of the shrub Ceanothus megacarpus in an old stand of chaparral in the Santa Monica Mountains
Wildfires have had a major influence on the structural and functional adaptations that have evolved in Mediterranean-type ecosystems. Some chaparral shrubs sprout after fires while others produce serotinous cones or seeds refractory to germination until they are cued by a fire. Ceanothus megacarpus is a sclerophylous shrub commonly found in California in either pure of mixed stands which...
Authors
T. M. Montygierd-Loyba, Jon E. Keeley