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.
Filter Total Items: 6071
Climatic variation drives growth potential of juvenile Chinook Salmon (Oncorhynchus tshawytscha) along a sub-Arctic boreal riverscape
Climatic variation is a key driver of freshwater physical processes that in turn control stream fish growth and population dynamics at fine spatial scales and species distributions across broad landscapes. A recent downturn in Chinook Salmon returns across the Yukon River basin, Alaska, USA, and Yukon Territories, Canada, has led to hardship among user groups and increased interest in understandin
Authors
Jeffrey A. Falke, Brock M. Huntsman, Erik R. Schoen
Global status of trout and char: Conservation challenges in the twenty-first century
Freshwater ecosystems are among the most threatened ecosystems in the world (Richter et al. 1997; Strayer and Dudgeon 2010), and freshwater fishes may now be the most threatened group of vertebrates (Ricciardi and Rasmussen 1999; Vorosmarty et al. 2010; Darwall and Freyhof 2016). Of the 7,300 freshwater fish species globally assessed by the International Union for Conservation of Nature (IUCN, www
Authors
Clint C. Muhlfeld, Daniel C. Dauwalter, Vincent S. D'Angelo, Andrew Ferguson, J. Joseph Giersch, Dean Impson, Itsuro Koizumi, Ryan Kovach, Philip McGinnity, Johannes Schoeffmann, John Epifanio, Leif Asbjørn Vøllestad
Empirical estimation of natural geoelectric hazards
Geoelectric field time series can be estimated by convolving estimates of Earth‐surface impedance, such as those obtained from magnetotelluric survey measurements, with historical records of geomagnetic variation obtained at magnetic observatories. This straightforward procedure permits the mapping of geoelectric field variation during magnetic storms. Statistical analysis of the time series allow
Authors
Jeffrey J. Love, Paul A. Bedrosian, Anna Kelbert, Greg M. Lucas
The first 3D conductivity model of the contiguous US: Reflections on geologic structure and application to induction hazards
Estimation of ground level geoelectric fields has been identified by the National Space Weather Action Plan as a key component of assessment and mitigation of space weather impacts on critical infrastructure. Estimates of spatially and temporally variable electric fields are used to generate statistically based hazard maps and show promise toward monitoring and responding to geomagnetic disturbanc
Authors
Anna Kelbert, Paul A. Bedrosian, Benjamin S. Murphy
Multivariate models and analyses
No abstract available.
Authors
Erica Stuber, Christopher Chizinski, Jeffrey Lusk, Joseph J. Fontaine
Second-generation feedstocks from dedicated energy crops: Implications for wildlife and wildlife habitat
No abstract available.
Authors
Susan P. Rupp, Christine Ribic
Emerging contaminants in groundwater, karst, and the Edwards Aquifer
Karst aquifers have hydrogeologic characteristics that render them uniquely vulnerable to contamination from emerging contaminants (ECs). ECs comprise numerous chemical groups, including pharmaceuticals, personal-care products, flame retardants, perfluorinated and polyfluorinated compounds, nanoparticles and microplastics. Many ECs have sources, transport pathways, and chemical characteristics tha
Authors
Barbara Mahler, Marylynn Musgrove
A river is born: Highlights of the geologic evolution of the Colorado River extensional corridor and its river: A field guide honoring the life and legacy of Warren Hamilton
The Colorado River extensional corridor, which stretched by a factor of 2 in the Miocene, left a series of lowland basins and intervening bedrock ranges that, at the dawn of the Pliocene, were flooded by Colorado River water newly diverted from the Colorado Plateau through Grand Canyon. This water and subsequent sediment gave birth, through a series of overflowing lakes, to an integrated Colorado
Authors
Keith A. Howard, Kyle House, Barbara E John, Ryan S. Crow, Philip A Pearthree
Mesozoic to Cenozoic sedimentation, tectonics, and metallogeny of Sonora, Mexico
We will embark on a five-day journey through northern, western, and central
Sonora, in which we will see excellent examples of mostly Mesozoic to Cenozoic tectonics,
sedimentation, and metallogeny. On Day 1, we will visit the porphyry copper
deposit at Ajo, Arizona, and several Pleistocene cinder cones and maar craters in
the Pinacate Biosphere Reserve. On Day 2, we will see L- and L-S tectonites
Authors
Jason Price, Thierry Calmus, S. Bennett, Lucas Ochoa-Landín
Walk in the footsteps of the Apollo astronauts: A field guide to northern Arizona astronaut training sites
Every astronaut who walked on the Moon trained in Flagstaff, AZ. In the early 1960s, scientists at the newly formed United States Geological Survey (USGS) Branch of Astrogeology led this training, teaching geologic principals and field techniques to the astronaut crews. USGS scientists and engineers also developed and tested scientific instrument prototypes, and communication and transportation
Authors
R. Greg Vaughan, Kevin Schindler, Jeanne Stevens, Ian Hough