Data

This data release contains nearshore bathymetry measurements collected at Point Barrow, Alaska in July 2022. These data were collected as part of an effort to monitor and forecast coastal flooding and erosion. They are also intended for reuse by scientists, managers, and the general public.

This data release consists of a series of seamless topobathymetric digital elevation models (TBDEMs) for coastal Alaskan communities. Each TBDEM was assembled from best available, multi-source topographic and bathymetric elevation data collected at the time of processing. These products were created to support the development of dynamic flood models, but are also intended for reuse by...

These field data such as first floor elevation and bathymetric surveys were collected to support development of coastal mapping products and advance storm response and recovery in Alaskan coastal communities. The data consists of essential community infrastructure elevation data to better understand flood exposure and support analysis of flood mitigation solutions, bathymetric surveys to...

Marine sediment push cores and one mineral concretion were collected near waste barrels in the San Pedro Basin of the Southern California Borderland in the Pacific Ocean using a remotely operated vehicle during the Schmidt Ocean Institute research cruise FK210726 onboard the R/V Falkor in 2021. Dried sediment samples of the 0-2 centimeter horizon of the cores and the mineral concretion...

This data release provides radiochemistry data (210Pb and 137Cs) of two sediment cores, BC01 and BC02, collected during USGS Field Activity 2024-662-FA in 2024 in San Francisco Bay, California, U.S.A., off Alameda and Point Isabel, respectively.

This dataset contains shoreline positions derived from available satellite imagery for multiple locations (Barter Island, Alaska; Elwha, Washington; Cape Cod, Massachusetts; Madeira Beach, Florida; and Rincon, Puerto Rico) across the United States for the time period 1984 to 2023, to support ongoing remote-sensing development and validation efforts.

This dataset provides GIS shapefiles of river margins and braids derived from 30 aerial imagery datasets of the Elwha River, Washington spanning June 2006 through September 2022. The extent of the river’s recently active flow zone, or margins, and river braids was manually digitized in a GIS using aerial orthoimages to capture changes in the river prior to, during, and after the removal...

Composite 30-m resolution bathymetric surface of northern Cascadia Margin offshore Washington. The surface was generated from various publicly available bathymetric datasets available in the region. The surface is available as a geoTIFF file.

A coupled hydrodynamic and sediment transport model was developed to simulate the dispersal of fine-grained sediment from beach nourishment projects near Santa Barbara, California. The model simulations were used to quantify the size and extent of sediment plumes resulting from nourishment projects and evaluate the potential impacts of beneficial use of fluvial sediment captured in...

Samples of aeolian (wind-transported) sediment were collected between 2003 and 2010 at multiple locations along the Colorado River corridor within Grand Canyon National Park, Arizona. At each site, sediment being actively transported by wind were collected using a set of four vertically stacked passive samplers (Big Spring Number Eight [BSNE] sand traps). Sediment samples were collected...

This shapefile contains habitat polygons identifying the dominant and major geomorphological structure, biological type and percent cover, and geologic zone for 11 square kilometers of Olowalu reef off west-central Maui at a minimum mapping unit of 100 square meters. Habitats were mapped with heads-up digitization using the NOAA Habitat Digitizer Extension in ArcMap (Esri, v.10.8.2)...

In 2015 the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) in cooperation with the Alaska Department of Fish and Game (ADFG) collected bathymetry and acoustic backscatter data offshore Cross Sound in southeast Alaska using an Reson 7111 multibeam echosounder mounded to the ADFG R/V Solstice. The survey was conducted to map the offshore expression of the...