Data

This metadata record describes a series of data sets of natural and anthropogenic landscape features linked to NHDPlus Version 2.1’s (NHDPlusV2) approximately 2.7 million stream segments, their associated catchments, and their upstream watersheds within the conterminous United States. The data were linked to four spatial components of NHDPlusV2: individual reach catchments, riparian...

This dataset is four tables with: 1) the body condition and egg counts of Sockeye Salmon captured at several sites along the Pilgrim River 2013-2016, 2) water temperature from 10 automated temperature dataloggers during the summers of 2013-2016, 3) results from an experiment to determine the effect of elevated water temperature on levels of Heat Shock Protein (HSP70) in captive juvenile...

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe bivalve count and size sampling and observations conducted at intertidal soft-sediment sampling sites in the northern Gulf of Alaska. This dataset consists of five comma separated files (.csv): 1) bivalve taxonomy table, 2) bivalve sampling site table, 3) bivalve count table, 4) bivalve size...

These data show the multilocus genotypes, as well as extraction and sample genotype quality assessments for desert tortoise (Gopherus agassizii) scat samples. These data support the following publication: Mitelberg, A., Vandergast, A.G., Nussear, K.E., Dutcher, K. and Esque, T.C., 2019. Development of a Genotyping Protocol for Mojave Desert Tortoise Scat. Chelonian Conservation and...

This data release includes two summary geospatial rasters in GeoTIFF format indicating the seasonal Pacific walrus distribution apparent from location tracking obtained from the temporary attachment of Argos transmitter tags to 325 adult Pacific walruses (248 female, 67 male, 10 unknown) between 1987 and 2015. We deployed tags on walruses at locations in the eastern and northern Bering...

From 2013-16 we deployed 3 motion-sensing cameras paired with hair (DNA)-snaring devices within each of 263 24-square kilometer primary sampling units distributed systematically across the Olympic Peninsula in northwestern Washington. The data set contains detection histories of fishers during each of 3 14-day sampling intervals at each hexagon. The data set also includes detectability...

These are DNA sequences isolated using double digest RADseq (NCBI) from Yosemite toads in the central Sierra Nevada of California, and scripts/data necessary to generate genotype files, and reproduce phylogenetic, fastsimcoal, niche overlap, and hybrid zone analyses (Dryad).

This source code (T2CPI) is to accompany the paper "Modeling Geologic Sequestration of CO2 in a Deep Saline Carbonate Reservoir with T2CPI, a New Tool for Reactive Transport Modeling" published in Environmental Geosciences.

A MODFLOW-6 groundwater flow model of the Big Sioux aquifer near Sioux Falls in southeastern South Dakota, was constructed to improve the understanding and management of the water supply resources for the City of Sioux Falls.

View most recent events or search for past earthquakes. Optimized for mobile and desktop.

This dataset is a bathymetric and hydraulic structure survey of Whetstone Brook and two tributaries. The dataset consists of stream channel cross-section data and structural data for bridges, culverts, and dams.

The dataset contains GPS survey data from two surveys conducted after a flow event on September 19, 2018, at the USGS streamgage 09487000 - Brawley Wash near Three Points, AZ. The first survey, on October 1, 2018, documents cross section geometry and high-water marks from the flow event in the reach downstream from the gage. The second survey, on January 31, 2019, documents additional...