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2023 Supplemental Appropriation Activities

By Supplemental Appropriations for Disaster Recovery Activities

Title VII of Division N in the Consolidated Appropriations Act, 2023 (Public Law 117–328), was enacted on December 29, 2022. The USGS received $41.04 million in supplemental funding to support direct recovery and rebuilding decisions in the wake of declared disasters related to hurricanes and typhoons in 2022.

Specific activities funded in 2023

Media
Pie chart showing breakdown of 2023 supplemental activities, in millions of dollars
Sources/Usage: Public Domain. View Media Details
Breakdown of funding for USGS activities under the Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117- 43).

USGS disaster emergency supplemental activities funded under the Consolidated Appropriations Act include:

Related

infographic showing transects signaling coastal change, onshore and offshore baselines

Digital Shoreline Analysis System (DSAS)

Software for calculating positional boundary change over time The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS. Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Hurricanes
Digital Shoreline Analysis System (DSAS)

Digital Shoreline Analysis System (DSAS)

Software for calculating positional boundary change over time The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS. Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions...
Learn More
Photo of flood staff installed in Kwigillingok, Alaska

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Alaska Flood Staffs

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
Learn More
Filter Total Items: 19

North Puerto Rico Shoreline Analysis 2022–2023 North Puerto Rico Shoreline Analysis 2022–2023

These geospatial datasets correspond to the extraction of elements and their attributes related to the shoreline and back beach of eleven (11) municipalities in the northwest and north coasts of Puerto Rico (Rincón, Aguadilla, Isabela, Hatillo, Arecibo, Dorado, Vega Baja, Carolina, Loíza, Río Grande, and Luquillo). These data were generated as part of the USGS Development of Coastal...
By
St. Petersburg Coastal and Marine Science Center

Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida

In June 2025, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted sediment core sampling at Midnight Pass, an inlet between Siesta Key and Casey Key, Florida. This inlet was closed by mechanical action in 1983 and reopened by the passage of hurricanes Helene and Milton in 2024, reconnecting Little Sarasota Bay to the Gulf...
By
St. Petersburg Coastal and Marine Science Center

Coastal Single-Beam Bathymetry Data: Midnight Pass and Milton Pass, Florida, June 2025 Coastal Single-Beam Bathymetry Data: Midnight Pass and Milton Pass, Florida, June 2025

In June 2025, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) participated in a multidisciplinary geoscientific field data collection within Midnight Pass and Milton Pass located along Florida’s west-central coastline, which opened as a result of hurricanes Helene and Milton in 2024. Researchers with the Nearshore Extreme Events Reconnaissance...
By
St. Petersburg Coastal and Marine Science Center

Inventory of rainfall-induced landslides in Puerto Rico, 2022-2023 Inventory of rainfall-induced landslides in Puerto Rico, 2022-2023

This data release provides a point inventory of rainfall-induced landslides in Puerto Rico during 2022 and 2023. Each record includes the date, latitude, longitude, descriptive location, spatial confidence, reporting source, and reference link. Landslides were identified from public reports, municipal sources, and National Weather Service call logs. Verification required dated...
By
Geologic Hazards Science Center

Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023 Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023

The data set contains geochemical data for 1,524,014 rock, sediment, soil, and mineral samples collected by the U.S. Geological Survey within US state, territory or Economic Exclusive Zone (EEZ) boundaries, and analyzed from 1962 through 2023 either in the analytical laboratories of the Geologic Discipline of the USGS or by contract with commercial analytical laboratories. These data...
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Hillslope hydrological monitoring data in Puerto Rico, October 2021 to September 2025 Hillslope hydrological monitoring data in Puerto Rico, October 2021 to September 2025

This data release includes time-series data from 18 monitoring stations installed in Puerto Rico following Hurricane María in 2017, which led to over 70,000 landslides across the island (Hughes and others, 2017). The first two stations were installed in July of 2018 (Smith and others, 2020) to investigate subsurface hydrologic response to rainfall and develop a quantitative link between...
By
Geologic Hazards Science Center

Vertical land motion rates for the years 2015 to 2023 - Coastal Alaska Vertical land motion rates for the years 2015 to 2023 - Coastal Alaska

Datasets contain vertical land motion (VLM) rates (land uplift and subsidence) derived from Sentinel-1 A/B satellites between 2015 and 2023 for the Alaska coastline. Files are available as csv files.
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Airborne Magnetic and Radiometric Survey over parts of central and northern Florida and southeastern Georgia, 2023-2024 Airborne Magnetic and Radiometric Survey over parts of central and northern Florida and southeastern Georgia, 2023-2024

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of central and northeastern Florida and southeastern Georgia. The survey was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Airborne magnetic and radiometric survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024 Airborne magnetic and radiometric survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Consolidated Appropriations Act, 2023—USGS disaster emergency recovery activities Consolidated Appropriations Act, 2023—USGS disaster emergency recovery activities

Title VII of Division N in the Consolidated Appropriations Act, 2023 (Public Law 117–328), was enacted on December 29, 2022. The U.S. Geological Survey received $41.04 million in disaster emergency supplemental funding for repairing and replacing facilities and equipment, collecting high-resolution elevation data in affected areas, and completing scientific assessments to support direct...
Authors
Jo Ellen Hinck, Joseph Stachyra
By
Ecosystems Mission Area, Columbia Environmental Research Center

Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025 Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025

Digital flood-inundation maps for a 3.1-mile reach of Río de la Plata in and near Comerío, Puerto Rico, were created by the U.S. Geological Survey (USGS). Water-surface profiles were computed for the stream reach by using a one-dimensional steady-state step-backwater model. The model was calibrated to the current (2025) stage-streamflow relation (rating curve 11.0) for the USGS...
Authors
Chad J. Ostheimer, Legna M. Torres-Garcia
By
Ohio-Kentucky-Indiana Water Science Center

Coastal Science Navigator companion guide—Discover the U.S. Geological Survey coastal science products you need Coastal Science Navigator companion guide—Discover the U.S. Geological Survey coastal science products you need

The Coastal Science Navigator is an online gateway to a wide variety of U.S. Geological Survey (USGS) coastal change hazards-related information, data, and tools relevant to stakeholders’ scientific and decision-making needs. The products within the Coastal Science Navigator provide data related to past, present, and future threats to our coastlines. The filter search allows users to see...
Authors
Mira Anderberg, Sara Ernst
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Current and projected flood exposure for Alaska coastal communities Current and projected flood exposure for Alaska coastal communities

Globally, coastal communities experience flood hazards that are projected to worsen from climate change and sea level rise. The 100-year floodplain or record flood are commonly used to identify risk areas for planning purposes. Remote communities often lack measured flood elevations and require innovative approaches to estimate flood elevations. This study employs observation-based...
Authors
Richard Michael Buzard, Christopher V. Maio, Li H. Erikson, Jacquelyn R. Overbeck, Nicole E. M. Kinsman, Benjamin M. Jones
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea

Alaska’s Arctic coast has some of the highest coastal erosion rates in the world, primarily driven by permafrost thaw and increasing wave energy. In the Arctic, a warming climate is driving sea ice cover to decrease in space and time. A lack of long-term observational wave data along Alaska’s coast challenges the ability of engineers, scientists, and planners to study and address threats...
Authors
Anita C. Engelstad, Li H. Erikson, Borja G. Reguero, Ann E. Gibbs, Kees Nederhoff
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Coastal Science Navigator Coastal Science Navigator

An online gateway for users such as state and local planners, resources managers, consultants, and researchers to more easily gain access to USGS coastal science data, products, tools, and information.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Gulf of America

Coastal and Marine Geoscience Data System Coastal and Marine Geoscience Data System

Information about scientific data collected through field activities conducted by scientists in the USGS Coastal and Marine Hazards and Resources Program.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Hazard Exposure Reporting and Analytics (HERA) Hazard Exposure Reporting and Analytics (HERA)

The Hazard Exposure and Reporting Analytics (HERA) website helps communities understand how natural hazards could impact their land, people, infrastructure, and livelihoods. HERA provides tools and data to help communities as they plan and prepare for natural hazards.
By
Pacific Coastal and Marine Science Center, Western Geographic Science Center, Supplemental Appropriations for Disaster Recovery Activities

CoastSeg CoastSeg

CoastSeg is an interactive browser-based program that aims to broaden the adoption of satellite-derived shoreline (SDS) detection and coastal landcover mapping workflows among coastal scientists and coastal resource management practitioners. SDS is a sub-field of coastal sciences that aims to detect and post-process a time-series of shoreline locations from publicly available satellite...
By
Pacific Coastal and Marine Science Center

Digital Shoreline Analysis System version 6.1 Digital Shoreline Analysis System version 6.1

The Digital Shoreline Analysis System (version 6) is a stand-alone desktop application that compliments a Geographic Information System (GIS). The DSAS software requires users to input a reference baseline and compilation of shoreline positions to generate measurement transects and shoreline intersections used to calculate rate-of-change statistics. DSAS provides an automated method for
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Digital Shoreline Analysis System (version 6) Digital Shoreline Analysis System (version 6)

The Digital Shoreline Analysis System (version 6) is a stand-alone desktop application that complements a Geographic Information System (GIS). The DSAS software requires users to input a reference baseline and compilation of shoreline positions to generate measurement transects and shoreline intersections used to calculate rate-of-change statistics. DSAS provides an automated method for...
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Related

infographic showing transects signaling coastal change, onshore and offshore baselines

Digital Shoreline Analysis System (DSAS)

Software for calculating positional boundary change over time The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS. Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Hurricanes
Digital Shoreline Analysis System (DSAS)

Digital Shoreline Analysis System (DSAS)

Software for calculating positional boundary change over time The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS. Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions...
Learn More
Photo of flood staff installed in Kwigillingok, Alaska

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Alaska Flood Staffs

Alaska Flood Staffs

The U.S. Geological Survey (USGS) uses observations of flooding in communities to monitor hazard conditions and support research by the USGS and its partners into a variety of hazard processes in Alaska. Local observations of flooding at flood staffs are used to document flood elevations, improve flood models, and support floodplain management decisions.
Learn More
Filter Total Items: 19

North Puerto Rico Shoreline Analysis 2022–2023 North Puerto Rico Shoreline Analysis 2022–2023

These geospatial datasets correspond to the extraction of elements and their attributes related to the shoreline and back beach of eleven (11) municipalities in the northwest and north coasts of Puerto Rico (Rincón, Aguadilla, Isabela, Hatillo, Arecibo, Dorado, Vega Baja, Carolina, Loíza, Río Grande, and Luquillo). These data were generated as part of the USGS Development of Coastal...
By
St. Petersburg Coastal and Marine Science Center

Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida Sediment Data From Cores Collected in 2025 at Midnight Pass, Florida

In June 2025, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted sediment core sampling at Midnight Pass, an inlet between Siesta Key and Casey Key, Florida. This inlet was closed by mechanical action in 1983 and reopened by the passage of hurricanes Helene and Milton in 2024, reconnecting Little Sarasota Bay to the Gulf...
By
St. Petersburg Coastal and Marine Science Center

Coastal Single-Beam Bathymetry Data: Midnight Pass and Milton Pass, Florida, June 2025 Coastal Single-Beam Bathymetry Data: Midnight Pass and Milton Pass, Florida, June 2025

In June 2025, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) participated in a multidisciplinary geoscientific field data collection within Midnight Pass and Milton Pass located along Florida’s west-central coastline, which opened as a result of hurricanes Helene and Milton in 2024. Researchers with the Nearshore Extreme Events Reconnaissance...
By
St. Petersburg Coastal and Marine Science Center

Inventory of rainfall-induced landslides in Puerto Rico, 2022-2023 Inventory of rainfall-induced landslides in Puerto Rico, 2022-2023

This data release provides a point inventory of rainfall-induced landslides in Puerto Rico during 2022 and 2023. Each record includes the date, latitude, longitude, descriptive location, spatial confidence, reporting source, and reference link. Landslides were identified from public reports, municipal sources, and National Weather Service call logs. Verification required dated...
By
Geologic Hazards Science Center

Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023 Geochemical data for rock, sediment, soil, and mineral samples, United States and territories, 1962 to 2023

The data set contains geochemical data for 1,524,014 rock, sediment, soil, and mineral samples collected by the U.S. Geological Survey within US state, territory or Economic Exclusive Zone (EEZ) boundaries, and analyzed from 1962 through 2023 either in the analytical laboratories of the Geologic Discipline of the USGS or by contract with commercial analytical laboratories. These data...
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Hillslope hydrological monitoring data in Puerto Rico, October 2021 to September 2025 Hillslope hydrological monitoring data in Puerto Rico, October 2021 to September 2025

This data release includes time-series data from 18 monitoring stations installed in Puerto Rico following Hurricane María in 2017, which led to over 70,000 landslides across the island (Hughes and others, 2017). The first two stations were installed in July of 2018 (Smith and others, 2020) to investigate subsurface hydrologic response to rainfall and develop a quantitative link between...
By
Geologic Hazards Science Center

Vertical land motion rates for the years 2015 to 2023 - Coastal Alaska Vertical land motion rates for the years 2015 to 2023 - Coastal Alaska

Datasets contain vertical land motion (VLM) rates (land uplift and subsidence) derived from Sentinel-1 A/B satellites between 2015 and 2023 for the Alaska coastline. Files are available as csv files.
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Unalakleet - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazard, and erosion and sedimentation pattern. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Elim - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...
By
Pacific Coastal and Marine Science Center

Airborne Magnetic and Radiometric Survey over parts of central and northern Florida and southeastern Georgia, 2023-2024 Airborne Magnetic and Radiometric Survey over parts of central and northern Florida and southeastern Georgia, 2023-2024

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of central and northeastern Florida and southeastern Georgia. The survey was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Airborne magnetic and radiometric survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024 Airborne magnetic and radiometric survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS...
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)

Consolidated Appropriations Act, 2023—USGS disaster emergency recovery activities Consolidated Appropriations Act, 2023—USGS disaster emergency recovery activities

Title VII of Division N in the Consolidated Appropriations Act, 2023 (Public Law 117–328), was enacted on December 29, 2022. The U.S. Geological Survey received $41.04 million in disaster emergency supplemental funding for repairing and replacing facilities and equipment, collecting high-resolution elevation data in affected areas, and completing scientific assessments to support direct...
Authors
Jo Ellen Hinck, Joseph Stachyra
By
Ecosystems Mission Area, Columbia Environmental Research Center

Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025 Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025

Digital flood-inundation maps for a 3.1-mile reach of Río de la Plata in and near Comerío, Puerto Rico, were created by the U.S. Geological Survey (USGS). Water-surface profiles were computed for the stream reach by using a one-dimensional steady-state step-backwater model. The model was calibrated to the current (2025) stage-streamflow relation (rating curve 11.0) for the USGS...
Authors
Chad J. Ostheimer, Legna M. Torres-Garcia
By
Ohio-Kentucky-Indiana Water Science Center

Coastal Science Navigator companion guide—Discover the U.S. Geological Survey coastal science products you need Coastal Science Navigator companion guide—Discover the U.S. Geological Survey coastal science products you need

The Coastal Science Navigator is an online gateway to a wide variety of U.S. Geological Survey (USGS) coastal change hazards-related information, data, and tools relevant to stakeholders’ scientific and decision-making needs. The products within the Coastal Science Navigator provide data related to past, present, and future threats to our coastlines. The filter search allows users to see...
Authors
Mira Anderberg, Sara Ernst
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Current and projected flood exposure for Alaska coastal communities Current and projected flood exposure for Alaska coastal communities

Globally, coastal communities experience flood hazards that are projected to worsen from climate change and sea level rise. The 100-year floodplain or record flood are commonly used to identify risk areas for planning purposes. Remote communities often lack measured flood elevations and require innovative approaches to estimate flood elevations. This study employs observation-based...
Authors
Richard Michael Buzard, Christopher V. Maio, Li H. Erikson, Jacquelyn R. Overbeck, Nicole E. M. Kinsman, Benjamin M. Jones
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea Database and time series of nearshore waves along the Alaskan coast from the United States-Canada border to the Bering Sea

Alaska’s Arctic coast has some of the highest coastal erosion rates in the world, primarily driven by permafrost thaw and increasing wave energy. In the Arctic, a warming climate is driving sea ice cover to decrease in space and time. A lack of long-term observational wave data along Alaska’s coast challenges the ability of engineers, scientists, and planners to study and address threats...
Authors
Anita C. Engelstad, Li H. Erikson, Borja G. Reguero, Ann E. Gibbs, Kees Nederhoff
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Coastal Science Navigator Coastal Science Navigator

An online gateway for users such as state and local planners, resources managers, consultants, and researchers to more easily gain access to USGS coastal science data, products, tools, and information.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Gulf of America

Coastal and Marine Geoscience Data System Coastal and Marine Geoscience Data System

Information about scientific data collected through field activities conducted by scientists in the USGS Coastal and Marine Hazards and Resources Program.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Hazard Exposure Reporting and Analytics (HERA) Hazard Exposure Reporting and Analytics (HERA)

The Hazard Exposure and Reporting Analytics (HERA) website helps communities understand how natural hazards could impact their land, people, infrastructure, and livelihoods. HERA provides tools and data to help communities as they plan and prepare for natural hazards.
By
Pacific Coastal and Marine Science Center, Western Geographic Science Center, Supplemental Appropriations for Disaster Recovery Activities

CoastSeg CoastSeg

CoastSeg is an interactive browser-based program that aims to broaden the adoption of satellite-derived shoreline (SDS) detection and coastal landcover mapping workflows among coastal scientists and coastal resource management practitioners. SDS is a sub-field of coastal sciences that aims to detect and post-process a time-series of shoreline locations from publicly available satellite...
By
Pacific Coastal and Marine Science Center

Digital Shoreline Analysis System version 6.1 Digital Shoreline Analysis System version 6.1

The Digital Shoreline Analysis System (version 6) is a stand-alone desktop application that compliments a Geographic Information System (GIS). The DSAS software requires users to input a reference baseline and compilation of shoreline positions to generate measurement transects and shoreline intersections used to calculate rate-of-change statistics. DSAS provides an automated method for
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Digital Shoreline Analysis System (version 6) Digital Shoreline Analysis System (version 6)

The Digital Shoreline Analysis System (version 6) is a stand-alone desktop application that complements a Geographic Information System (GIS). The DSAS software requires users to input a reference baseline and compilation of shoreline positions to generate measurement transects and shoreline intersections used to calculate rate-of-change statistics. DSAS provides an automated method for...
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
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