Data

The U.S. Geological Survey deployed small uncrewed aircraft systems (sUAS) to collect aerial remote sensing data across two sites within Assateague Island National Seashore (ASIS) where there are planned restoration efforts by the National Park Service (NPS). Natural-color (RGB) aerial imagery and raw lidar data were collected over the course of 3 days in March 2026 during the "leaf-off"...

A collection of time-series oceanographic data was obtained from locations on Georges Bank and adjacent continental shelf between 1975 and 1984. Measurements available include current, temperature, pressure, light transmission (beam attenuation). The time series is not continuous at any specific location. The originally processed, authoritative netCDF data files are provided in...

This data release supersedes version 1.0, published in May 2021 at https://doi.org/10.5066/P9FKARIZ. Versioning details are documented in the accompanying Matanzas_revision_history.txt file. The interactions of waves and currents near an inlet influence sediment and alter sea-floor bedforms, especially during winter storms. As part of the Cross-Shore and Inlets Processes project to...

Energy development is increasing along the Nation’s outer continental shelves. Offshore energy infrastructure, including monopiles for wind turbines, are subject to a variety of shallow hazards such as mobile seabed, shallow gas, glauconite and seismicity. In partnership with the Bureau of Safety and Environmental Enforcement (BSEE) the U.S. Geological Survey (USGS) inventoried the non...

The U.S. Geological Survey deployed small uncrewed aircraft systems (sUAS) to collect aerial remote sensing data across the Laudholm Marsh in Wells, Maine. These datasets were processed to produce high resolution digital elevation models (DEM), image mosaics, and lidar point clouds (LPC). Black and white cross-coded ground control points (GCPs) were surveyed using Real Time Kinematic...

These data were collected to characterize the sea floor by identifying sediment texture and benthic habitats in Long Island Sound. This dataset contains the locations and grain-size analysis results of surficial sediments collected with a modified Van Veen grab sampler on the SEABed Observation and Sampling System (SEABOSS 2.0). Eighty-nine sediment samples were acquired at 91 sampling...

The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from various historical sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. Shorelines are compiled in a GIS and analyzed in the USGS Digital Shoreline Analysis System (DSAS) software to calculate rates of...

The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST v3.8; Warner and others, 2010; Warner and others, 2019) modeling system was used to simulate ocean circulation, water levels, and waves that occurred during three separate hurricanes: Hurricane Ian (2022), Hurricane Idalia (2023), and Hurricane Helene (2024). Simulations were performed with coupled and concurrent ocean and wave...

Salt marshes are valuable ecosystems that may be able to migrate landward as sea level rises. This data release provides estimates of the marsh migration potential of salt marshes in the northeastern United States (Maine to Virginia), calculated in terms of the available migration area for each marsh unit, as defined by the US Geological Survey. The area available for landward migration...

This data release contains coastal wetland synthesis products for the New Hampshire salt marshes. Metrics for resiliency, including the unvegetated to vegetated ratio (UVVR), marsh elevation, tidal range, and lifespan are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S...

This dataset provides estimates of wave power and related erosion along shorelines of marsh units (Ackerman and others, 2022 and Defne and others, 2025) in Chesapeake Bay. The climatological wave power from Aretxabaleta and others (2022) is projected on stretches of marsh shorelines that are determined by intersecting the marsh units with the estuarine and marine deepwater class and the...

Meteorological data were collected at Marconi and Head of the Meadow Beaches on Cape Cod National Seashore, MA as part of a multi-year monitoring study of nearshore sand transport and white shark behavior. The overarching goal of the study is to characterize beach and nearshore morphology, assess temporal variability, and measure wave runup to calibrate USGS total water level forecasts...