Data

Bathymetry and acoustic-backscatter data were collected during three separate SWATHPlus surveys of Jenkinson Lake, California to determine any impacts on the lake floor following the 2021 Caldor fire. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) with fieldwork activity numbers 2022-604-FA (January 2022), 2022...

Model hindcasts were performed with a spectral wave model to quantify nearshore wave parameters along the Columbia River littoral cell, Oregon and Washington. The spectral wave model SWAN was used to simulate nearshore wave dynamics at 1-hr intervals along the coast between 2014 and 2023. A second hindcast simulated wave dynamics between 2010 and 2011. This data release describes the...

This dataset contains shoreline positions derived from available Landsat satellite imagery for four states (Texas, Louisiana, Mississippi, and Florida) along the U.S. Gulf coast for the time period 1984 to 2022. An open-source toolbox, CoastSat (Vos and others, 2019a and 2019b), was used to classify coastal Landsat imagery and detect shorelines at the sub-pixel scale. Resulting...

Water samples were collected from the San Lorenzo River, Santa Cruz, California, and analyzed for suspended-sediment concentration and sand break (proportion of sand vs. silt-plus-clay) at the U.S. Geological Survey (USGS) laboratory in Santa Cruz, California. The samples were all single-vertical samples collected from the thalweg of the river, using a D-95 sampler deployed from a bridge...

This data release presents Digital Surface Models (DSM) and orthomosaic images derived from uncrewed aerial system (UAS) surveys conducted at Jenkinson Lake in El Dorado County, California. The surveys were conducted to perform repeat structure-from-motion topographic mapping at the upper end of the reservoir, near the inlets of Sly Park Creek and Hazel Creek, with the purpose of...

The U.S. Geological Survey Pacific Coastal and Marine Science Center made observations of hydrodynamics, water quality, and sediment transport in Whales Tail South Marsh in the Eden Landing Ecological Reserve in Alameda County, California during summer 2021 and winter 2021-2022. Details on station location, instrumentation, and measured variables are included in the metadata for each...

The U.S. Geological Survey Pacific Coastal and Marine Science Center collected hydrodynamic and sediment-transport data at shallow subtidal and intertidal sites in Corte Madera Bay and San Pablo Bay National Wildlife Refuge (SPNWF) in San Francisco Bay, CA, as well as on the marsh plain of SPNWF marsh and in a tidal creek and on the marsh plain of Corte Madera Marsh, in 2022 and 2023...

Water temperature is an important characteristic of stream conditions with implications for water quality and stream dwelling organisms. This Data Release contains spatial stream network (SSN) objects and R scripts to run SSN models to predict mean monthly stream temperature and 7-day average daily maximum (Max7DAD) during August and September in the White River watershed within Mount...

This data release provides census counts of the non-indigenous benthic foraminifera Trochammina hadai Uchio in surface sediment samples obtained in San San Francisco Bay, California from 1983-2010.

This data release supersedes version 1.0, published in April 2023 at https://doi.org/10.5066/P9Y5PEV0. Versioning details are documented in the accompanying SFBay_BathyChange_VersionHistory.txt file. This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data...

The U.S. Geological Survey Pacific Coastal and Marine Science Center collected cores in the Cargill Marsh section of Whales Tail South Marsh in Eden Landing Ecological Reserve in Alameda County, California in 2022 and 2023. This data release includes photographs, computed tomography (CT) scans, and radiometric data. Details on core locations and measured variables are included in...

Ferromanganese crusts, nodules, and hydrothermally altered rocks were collected via dredge within the Amerasia Basin in the Arctic Ocean during USCGC icebreaker Healy cruises HLY0805, HLY0905, and HLY1202 in 2008, 2009, and 2012 respectively. Dredged samples were donated and sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace element data as...