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Uranium-Lead Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Darby Mountains Area, Seward Peninsula, Alaska Uranium-Lead Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Darby Mountains Area, Seward Peninsula, Alaska
This dataset contains uranium–lead (U-Pb) isotopic data and ages, hafnium (Hf) isotope data, and trace element concentrations of zircon from igneous rocks collected from the Darby Mountains area of the Seward Peninsula, Alaska. The sample suite was collected as part of geological mapping and supporting geochemical and geochronological analysis conducted in 2017. The data tables...
Maps of cumulative energy expenditure models for jaguar in southern Arizona Maps of cumulative energy expenditure models for jaguar in southern Arizona
Raster data depicting estimated jaguar energy expenditure required to move north from the US-Mexico border to reach important water sources. The data were generated for five scenarios: walled, un-walled crossing and three remediation scenarios: a border crossing through the wall in rugged terrain towards the west end of the wall, a crossing in a dry wash centrally located, one in less...
Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025) Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025)
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future scenarios. CoSMoS 3.2 for Northern California shows projections for future scenarios (sea-level change and storms) to provide emergency responders and coastal planners with critical...
Soil Water Balance Model of the White River Basin, Mount Rainier National Park, Washington, USA, 1999-2020 Soil Water Balance Model of the White River Basin, Mount Rainier National Park, Washington, USA, 1999-2020
This archive documents a Soil Water Balance (SWB) model of the The White River Basin, Washington and immediate surrounding environs. The SWB model is used to estimate surface processes of a water budget including precipitation, interception, evapotranspiration, surface runoff, etc. for the upper White River area from January 1999 - December 2020.
Data for simulation experiments comparing nonstationary design-flood adjustments based on observed annual peak flows in the conterminous United States Data for simulation experiments comparing nonstationary design-flood adjustments based on observed annual peak flows in the conterminous United States
This dataset contains files used in this Monte Carlo simulation study comparing the performance of five statistical models for adjusting design floods for current conditions at sites with known trends. These files include (i) the observed annual peak-flow series in the conterminous US used to inform ranges of known moments and trends used in the simulation experiment, (ii) the 3,000...
Alaska permafrost characterization: Geophysical and related field data collected in 2021 Alaska permafrost characterization: Geophysical and related field data collected in 2021
Geophysical measurements were collected by the U.S. Geological Survey (USGS) at five sites in Interior Alaska in September 2021 for the purposes of imaging permafrost structure and quantifying variations in subsurface moisture content in relation to thaw features. Electrical resistivity tomography (ERT) measurements were made along transects 110-222 meters (m) in length to quantify...