Filters: Tags: Linear Regression Rate (X) > Extensions: ArcGIS Service Definition (X)

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Rate of shoreline change statistics for New York State coastal wetlands This data set contains shoreline rate of change statistics for New York State coastal wetlands. Analysis was performed using the Digital Shoreline Analysis System (DSAS), created by U.S. Geological Survey, version 5.0, an extension for ArcMap. A reference baseline was used as the originating point for orthogonal transects cast by the DSAS software. The transects intersect each polyline vector shoreline establishing intersection measurement points, which were then used to calculate the rates of change. End-point rates, calculated by dividing the distance of shoreline movement by the time elapsed between the oldest and the most recent shoreline, were generated for wetlands where fewer than three historic shorelines... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Digital Shoreline Analysis System, End-Point Rate, Geography, Geomorphology, Great South Bay, All tags... Hudson River, Jamaica Bay, Linear Regression Rate, New York, New York Bay, New York State, Peconic Bay, Shoreline Change Rate, U.S. Geological Survey, USGS Science Data Catalog (SDC), United States, Water Resources, Woods Hole Coastal and Marine Science Center, coastal processes, erosion, estuary, shoreline accretion, wetland, wetland ecosystems, 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 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: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama (AL), Baseline, Beach Erosion, Beach Nourishment, Coastal Survey Map, All tags... Endpoint Rate, Florida (FL), Gulf of Mexico, Gulf of Mexico, Historic Shoreline, LIDAR, Linear Regression Rate, Louisiana (LA), Mississippi (MS), Shoreline, Shoreline Change Rate, T-sheet, Texas (TX), Tp-sheet, United States, coastal hazard, hurricane impact, nourishment, sediments, shoreline, shoreline change, 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: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama (AL), Baseline, Beach Erosion, Beach Nourishment, Coastal Survey Map, All tags... Endpoint Rate, Florida (FL), Gulf of Mexico, Gulf of Mexico, Historic Shoreline, LIDAR, Linear Regression Rate, Louisiana (LA), Mississippi (MS), Shoreline, Shoreline Change Rate, T-sheet, Texas (TX), Tp-sheet, United States, coastal hazard, hurricane impact, nourishment, sediments, shoreline, shoreline change, Fewer tags