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Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
NOAA NEXt-Generation RADar (NEXRAD) Products NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset consists of Level III weather radar products collected from Next-Generation Radar (NEXRAD) stations located in the contiguous United States, Alaska,... -
Federal
2024 NOAA NGS Emergency Response Imagery: Hurricane Helene
National Oceanic and Atmospheric Administration, Department of Commerce —
Aerial imagery was acquired following Hurricane Helene. The aerial photography missions were conducted by the NOAA Remote Sensing Division. The images were acquired... -
Federal
Sea Level Trends: Sea Level Variations of the United States Derived from National Water Level Observation Network Stations NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
Water level records are a combination of the fluctuations of the ocean and the vertical land motion at the location of the station. Monthly mean sea level (MSL)... -
Federal
2025 NOAA NGS Emergency Response Imagery: Hurricane Melissa
National Oceanic and Atmospheric Administration, Department of Commerce —
Aerial imagery was acquired following Hurricane Melissa in targeted areas in Jamaica. The aerial photography missions were conducted by the NOAA Remote Sensing... -
Federal
Preliminary Landslide Inventory for Landslides Triggered by Hurricane Helene (September 2024)
Department of the Interior —
We present a preliminary point inventory of landslides triggered by Hurricane Helene, which impacted southern Appalachia between September 25–27, 2024. This inventory... -
Federal
EnviroAtlas - Estimated floodplain map for the Conterminous United States
U.S. Environmental Protection Agency —
Understanding the relationship between flood inundation and floodplains is critical for ecosystem and community health and well-being, as well as targeting floodplain... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
Aerial Imagery of the Florida Gulf Coast: 2024-10-01 to 2024-10-04, Post-Hurricane Helene
Department of the Interior —
The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths with optimized endlap/sidelap and precise... -
Federal
Flood-Inundation Depth Grids for Little Calumet River from Lansing to South Holland, Illinois, 2020
Department of the Interior —
Digital flood-inundation maps for about an 8-mile reach of the Little Calumet River, Illinois, were created by the U.S. Geological Survey (USGS) in cooperation with... -
Federal
NOAA Digital Coast Sea Level Rise and Coastal Flooding Impacts Viewer
National Oceanic and Atmospheric Administration, Department of Commerce —
The Sea Level Rise and Coastal Flooding Impacts Viewer depicts potential sea level rise and its associated impacts on the nation's coastal areas. These coastal areas... -
Federal
Shapefiles depicting the 2D HEC-RAS hydraulic modeling domains
Department of the Interior —
The shapefiles depict the 2D HEC-RAS hydraulic modeling domains used for the simulations described in the associated publication. Model domains were delineated in the... -
Federal
Physical Oceanographic (Water Temperature and Conductivity) Data
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) is the authoritative source for accurate, reliable, and timely data on tides, water levels,... -
Federal
Flood-inundation depth grid files for selected reaches of the Sabinal River and the West Sabinal River near Utopia, Texas, 2021
Department of the Interior —
This data release documents the digital data used to produce flood-inundation maps for a range of gage heights (stages) for the Sabinal River near Utopia, Tex. The... -
Federal
High Tide Flooding Products from NOAA CO-OPS
National Oceanic and Atmospheric Administration, Department of Commerce —
High tide flooding is the overflow or excess accumulation of water that covers typically dry coastal land and occurs during high tides. As relative sea levels rise,... -
Federal
Global Wetlands Africa
U.S. Environmental Protection Agency —
This raster GIS dataset contains 30 meter cells depicting wetlands in a hydrobasin. This base dataset is a combination of three globally available datasets creating a... -
Federal
Lake Powell extent polygons at various elevations
Department of the Interior —
These data were compiled to visualize the extent of Lake Powell at various elevation levels. These data represent water surface elevations for Lake Powell at levels... -
Federal
Regional Snowfall Index (RSI)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Regional Snowfall Index (RSI) is an index of significant snowstorms that impact the eastern two thirds of the U.S. The RSI ranks snowstorm impacts on a scale from... -
Federal
Rock mass quality and structural geology observations in northwest Prince William Sound, Alaska from the summer of 2021
Department of the Interior —
Multiple subaerial landslides adjacent to Prince William Sound, Alaska (for example, Dai and others, 2020; Higman and others, 2023; Schaefer and others, 2024) pose a... -
Federal
Automation of Field Operations and Services (AFOS) National Weather Service (NWS) Service Records and Retention System (SRRS) Data
National Oceanic and Atmospheric Administration, Department of Commerce —
Service Records and Retention System (SRRS) is historical digital data set DSI-9949, a collection of products created by the U.S. National Weather Service (NWS) and...