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Publications

Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Filter Total Items: 175531

21st-century mangrove expansion along the southeastern United States 21st-century mangrove expansion along the southeastern United States

Warming winter temperatures are driving range expansion of tropical, cold-sensitive mangroves into temperate ecosystems. Along the Atlantic coast of North America, the mangrove range limit is particularly sensitive to climate variability and historical data demonstrate that the mangrove-salt marsh ecotone on this coast has shifted recurrently during recent centuries. However, a...
Authors
Lucia I.A. Enes Gramoso, Dustin Carrol, Kyle C. Cavanaugh, Remi Bardou, Michael J. Osland, Tom Van der Stocken

Status assessment of peregrine falcons in North America using integrated population models Status assessment of peregrine falcons in North America using integrated population models

Species status assessments require an understanding of underlying population dynamics and important drivers of species demography. Large-scale assessments can be difficult due to challenges collating data obtained through different methods and different sources at multiple scales. Integrated population models (IPMs) provide a unified framework to combine multiple data sources and jointly...
Authors
Michael J. Gould, Ted Swem, Guthrie S. Zimmerman, Brian A. Millsap, Jay V. Gedir, Fitsum Abadi

FluOil—A tool for estimating the transport and deposition of oil-particle aggregates in rivers FluOil—A tool for estimating the transport and deposition of oil-particle aggregates in rivers

The FluOil tool was developed to help with planning and early response for oil spills in rivers where subsurface oil-sediment interactions result in the formation of oil-particle aggregates (OPA). The turbulence and variable velocity associated with water flowing within a natural stream channel creates the conditions needed for an oil slick to break up into small droplets and mix in the...
Authors
Faith Fitzpatrick, Collin Roland, Angus Vaughan, Zhenduo Zhu, David Soong, Rachel Sortor

Assessing future hydrologic extremes using an integrated hydrology and river operations model in the Russian River watershed Assessing future hydrologic extremes using an integrated hydrology and river operations model in the Russian River watershed

Study regionThe Russian River watershed, situated in coastal, northern California, experiences hydrologic extremes, including periodic droughts and flooding. Water managers are working to maintain sustainable water supplies and environmental flows, while mitigating flood risks.Study focusThis paper introduces an integrated hydrology and river operations model for the Russian River...
Authors
Saalem Tilahun Adera, Ayman H. Alzraiee, Richard G. Niswonger, Enrique Triana, Derek W. Ryter, John A. Engott

Magnitude conversion relations create substantial differences in seismic hazard models Magnitude conversion relations create substantial differences in seismic hazard models

Earthquake catalogs are essential data inputs for seismic hazard modeling. Because earthquake magnitudes are reported in a variety of types (e.g., local magnitudes and moment magnitudes), magnitude conversion relationships must be used to convert the different magnitude types present in a catalog to a uniform magnitude type to avoid biases in the hazard computation. However, these...
Authors
Andrea L. Llenos, David R. Shelly, Allison Shumway

Season and antecedent conditions impact concentration-discharge relationships for dissolved organic carbon and alkalinity in southeast Alaskan watershed Season and antecedent conditions impact concentration-discharge relationships for dissolved organic carbon and alkalinity in southeast Alaskan watershed

Fluvial export of dissolved carbon plays an important role in watershed-scale biogeochemistry. Predicted changes in climate are expected to impact watershed hydrologic regimes, and in turn, the sources and export of dissolved carbon from watersheds. Here, we utilize high resolution measurements of discharge and dissolved carbon concentration to examine how concentration-discharge (CQ)
Authors
Claire Delbecq, Jason B. Fellman, J. Ryan Bellmore, Emily J. Whitney, Kevin Fitzgerald, Jeffrey A. Falke
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