Book Chapters
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 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.
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Projected changes in climate and physical processes
In Chapter 3, we examined how climate has changed in the Mid-Atlantic region during the past century. This chapter examines how climate is expected to change during the 21st century, including changes in extreme weather events and other climaterelated processes. General circulation models, also called global climate models (GCMs), are used to project future change at coarse spatial scales and then
Authors
Patricia R. Butler-Leopold, Louis R. Iverson, Frank R. Thompson III, Leslie A. Brandt, Stephen D. Handler, Maria K. Janowiak, P. Danielle Shannon, Christopher W. Swanston, Scott Bearer, Alexander Bryan, Kenneth L. Clark, Greg Czarnecki, Philip DeSenze, William D. Dijak, Jacob S. Fraser, Paul F. Gugger, Andrea Hille, Justin Hynicka, Claire A. Jantz, Matthew C. Kelly, Katrina M. Krause, Inga P. La Puma, Deborah Landau, Richard G. Lathrop, Laura P. Leites, Evan Madlinger, Stephen N. Matthews, Gulnihal Ozbay, Matthew P. Peters, Anantha Prasad, David A. Schmit, Collin Shephard, Rebecca Shirer, Nicholas S. Skowronski, Al Steele, Susan Stout, Melissa Thomas-Van Gundy, John Thompson, Richard M. Turcotte, David A. Weinstein, Alfonso Yáñez
Coastal wetlands: A synthesis
This book and this synthesis address the pressing need for better management of coastal wetlands worldwide because these wetlands are disappearing at an alarming rate; in some countries the loss is 70%–80% in the last 50 years. Managing requires understanding. Although our understanding of the functioning of coastal wetland ecosystems has grown rapidly over the past decade, still much remains to b
Authors
Charles S. Hopkinson, Eric Wolanski, Donald R. Cahoon, Gerardo M. E. Perillo, Mark M. Brinson
Evaluating restored tidal freshwater wetlands
As restoration of tidal freshwater wetlands has progressed in North America and Eurasia, research findings have continued to emerge on the postrestoration success of these ecosystems. The most common approaches used to restore tidal freshwater wetlands involve excavation or placement of dredged sediment to restore tidal hydrology compatible with vegetation establishment and managed realignment or
Authors
Andrew H. Baldwin, Richard S. Hammerschlag, Donald R. Cahoon
Status and Trends in the Lake Superior Fish Community, 2017
In 2017, the Lake Superior fish community was sampled with daytime bottom trawls at 76 nearshore and 36 offshore stations. Spring nearshore and summer offshore water temperatures in 2017 were similar to slightly cooler than the 1991-2017 average. In the nearshore zone, a total of 28,902 individual fish from 27 species or morphotypes were collected. The number of species collected at each station r
Authors
Mark Vinson, Lori M. Evrard, Owen T. Gorman, Daniel Yule
Fifty-years of advances in hyperspectral remote sensing of agriculture and vegetation-Summary, insights, and highlights of Volume IV
No abstract available.
Authors
Prasad S. Thenkabail, John G. Lyon, Alfredo Huete
Fifty years of advances in hyperspectral remote sensing of agriculture and vegetation—Summary, insights, and highlights of volume II
No abstract available.
Authors
Prasad S. Thenkabail, John G. Lyon, Alfredo Huete
Fifty-years of advances in hyperspectral remote sensing of agriculture and vegetation: Summary, insights, and highlights of volume III
The goal of this summary chapter is twofold. The first is to provide the reader an overview of the content of the preceding chapters. This they can read at the very beginning, before moving on to individual chapters in detail. Alternatively, they may read it at the very end to refresh their memory and to summarize the contents of the Volume. Second, this summary provides the editors’ perspective,
Authors
Prasad S. Thenkabail, John G. Lyon, Alfredo Huete
Characteristics of tropical tree species in hyperspectral and multispectral data
Remote sensing has been hailed as a promising technology to provide spatially explicit information on tree species distribution. Such information is of high value for ecologists and forest managers, particularly in tropical environments in which it is acquired by costly field inventories performed at the plot level (∼1 ha). Over the last decade, hyperspectral sensors, usually on board airborne pla
Authors
Matheus Pinheiro Ferreira, Cibele Hummel do Amaral, Gaia Vaglio Laurin, Raymond F. Kokaly, Carlos Roberto de Souza Filho, Yosio Edemir Shimabukuro
Evaluating riparian vegetation change in canyon-bound reaches of the Colorado River using spatially extensive matched photo sets
Much of what we know about the functional ecology of aquatic and riparian ecosystems comes from work on regulated rivers (Johnson et al. 2012). What little we know about unregulated conditions on many of our larger rivers is often inferred from recollections of individuals, personal diaries, notes, maps, and collections from early scientific surveys (Webb et al. 2007) and from repeat photography (
Authors
Michael L. Scott, Robert H. Webb, R. Roy Johnson, Raymond M. Turner, Jonathan M. Friedman, Helen C. Fairley
The National Elevation Dataset
The National Elevation Dataset (NED) is a primary elevation data product that has been produced and distributed by the U.S. Geological Survey (USGS). Since its inception, the USGS has compiled and published topographic information in many forms, and the NED is a significant development in this long line of products that describe the land surface. The NED provides seamless raster elevation data of
Authors
Dean B. Gesch, Gayla A. Evans, Michael J. Oimoen, Samantha Arundel