Beach Nourishment in the Gulf of Mexico

Attempts to stabilize the shore can greatly influence rates of shoreline change. Beach nourishment in particular will bias rates of observed shoreline change toward accretion or stability, even though the natural beach, in the absence of nourishment, would be eroding. Trembanis and Pilkey (1998) prepared a summary of identifiable beach nourishment projects in the Gulf Coast region that had been conducted before 1996. Those records were used to identify shoreline segments that had been influenced by beach nourishment. Supplemental information regarding beach nourishment was collected from agencies familiar with nourishment projects in the State. All records were compiled to create a GIS layer depicting the spatial...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Academics & scientific researchers, Alabama, Alabama, BEACHES, Baseline, All tags... Beach Erosion, Beach Nourishment, COASTAL LANDFORMS, Coastal Survey Map, Conservation NGOs, Data, EARTH SCIENCE, Endpoint Rate, Federal resource managers, GEOMORPHIC LANDFORMS/PROCESSES, Gulf of Mexico, Historic Shoreline, LAND SURFACE, LCC Network Science Catalog, LIDAR, Linear Regression Rate, Regional & county planners, Shoreline, Shoreline Change Rate, State agencies, T-sheet, Tp-sheet, United States, completed, environment, Fewer tags

WA Short Term Shoreline Change

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accretion, CMGP, Coastal and Marine Geology Program, Columbia River, DSAS, All tags... Digital Shoreline Analysis System, End Point Rate, Erosion, Historic Shoreline, National Assessment of Shoreline Change Project, North America, Pacific Coast, Pacific Northwest, Shoreline, Short-Term Shoreline Change Rate, Transect, U.S. Geological Survey, USGS, United States, WHCMSC, Washington, Willapa Bay, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, oceans and coastal, oceans and estuaries, Fewer tags

Historical Changes in Shoreline in the Gulf of Mexico

There are critical needs for a nationwide compilation of reliable shoreline data. To meet these needs, the USGS has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data. Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002. Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies. Details regarding source are provided in the ‘Data Quality Information’ section of this metadata report. Shoreline vectors derived from historic...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Academics & scientific researchers, Alabama, Baseline, Beach Erosion, Beach Nourishment, All tags... COASTAL LANDFORMS, COASTAL LANDFORMS, COASTAL LANDFORMS, COASTAL LANDFORMS, Coastal Survey Map, Conservation NGOs, Data, EARTH SCIENCE, EARTH SCIENCE, EARTH SCIENCE, EARTH SCIENCE, Endpoint Rate, Federal resource managers, Florida, Floridia, GEOMORPHIC LANDFORMS/PROCESSES, GEOMORPHIC LANDFORMS/PROCESSES, GEOMORPHIC LANDFORMS/PROCESSES, GEOMORPHIC LANDFORMS/PROCESSES, Gulf of Mexico, Historic Shoreline, LAND SURFACE, LAND SURFACE, LAND SURFACE, LAND SURFACE, LCC Network Science Catalog, LIDAR, Linear Regression Rate, Louisiana, Mississippi, Regional & county planners, SHORELINES, SHORELINES, SHORELINES, SHORELINES, Shoreline, Shoreline Change Rate, State agencies, T-sheet, Texas, Tp-sheet, United States, completed, environment, Fewer tags

Long Term Shoreline Change Rates

Rates of long-term and short-term shoreline change were generated in a GIS with the Digital Shoreline Analysis System (DSAS) version 2.0, an ArcView extension developed by the USGS in cooperation with TPMC Environmental Services. The extension is designed to efficiently lead a user through the major steps of shoreline change analysis. This extension to ArcView contains three main components that define a baseline, generate orthogonal transects at a user-defined separation along the coast, and calculate rates of change (linear regression, endpoint rate, average of rates, average of endpoints, jackknife).

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Academics & scientific researchers, Alabama, Baseline, Beach Erosion, Beach Nourishment, All tags... Coastal Survey Map, Conservation NGOs, DATA ANALYSIS AND VISUALIZATION, DATA ANALYSIS AND VISUALIZATION, DATA ANALYSIS AND VISUALIZATION, Data, EARTH SCIENCE SERVICES, EARTH SCIENCE SERVICES, EARTH SCIENCE SERVICES, Endpoint Rate, Federal resource managers, Florida, Floridia, GEOGRAPHIC INFORMATION SYSTEMS, GEOGRAPHIC INFORMATION SYSTEMS, GEOGRAPHIC INFORMATION SYSTEMS, Gulf of Mexico, Historic Shoreline, LCC Network Science Catalog, LIDAR, Linear Regression Rate, Louisiana, Mississippi, Regional & county planners, Shoreline, Shoreline Change Rate, State agencies, T-sheet, Texas, Tp-sheet, United States, completed, environment, Fewer tags

WA Long Term Shoreline Change

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accretion, CMGP, Coastal and Marine Geology Program, Columbia River, DSAS, All tags... Digital Shoreline Analysis System, Erosion, Historic Shoreline, Linear Regression Rate, Long-Term Shoreline Change Rate, National Assessment of Shoreline Change Project, North America, Pacific Coast, Pacific Northwest, Shoreline, Transect, U.S. Geological Survey, USGS, United States, WHCMSC, Washington, Willapa Bay, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, oceans and coastal, oceans and estuaries, Fewer tags

OR Long Term Shoreline Change

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accretion, CMGP, Cascade Longview, Coastal and Marine Geology Program, Columbia River, All tags... DSAS, Digital Shoreline Analysis System, Erosion, Historic Shoreline, Linear Regression Rate, Long-Term Shoreline Change Rate, National Assessment of Shoreline Change Project, North America, Oregon, Pacific Coast, Pacific Northwest, Seb Arago, Shoreline, Tillamook Bay, Transect, U.S. Geological Survey, USGS, Umpqua Siletz, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, oceans and coastal, oceans and estuaries, Fewer tags

OR Short Term Shoreline Change

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accretion, CMGP, Cascade Longview, Coastal and Marine Geology Program, Columbia River, All tags... DSAS, Digital Shoreline Analysis System, End Point Rate, Erosion, Historic Shoreline, National Assessment of Shoreline Change Project, North America, Oregon, Pacific Coast, Pacific Northwest, Seb Arago, Shoreline, Short-Term Shoreline Change Rate, Tillamook Bay, Transect, U.S. Geological Survey, USGS, Umpqua Siletz, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, oceans and coastal, oceans and estuaries, Fewer tags