Filters: Tags: {"type":"USGS Scientific Topic Keyword"} (X) > partyWithName: Julia L Heslin (X)

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Seabeach amaranth presence-absence and barrier island geomorphology metrics as relates to shorebird habitat for Assateague Island National Seashore — 2008, 2010, and 2014 Understanding how sea-level rise will affect coastal landforms and the species and habitats they support is critical for developing approaches that balance the needs of humans and native species. Given the magnitude of the threat posed by sea-level rise, and the urgency to better understand it, there is an increasing need to forecast sea-level rise effects on barrier islands. To address this problem, scientists in the U.S. Geological Survey (USGS) Coastal and Marine Geology program are developing Bayesian networks as a tool to evaluate and to forecast the effects of sea-level rise on shoreline change, barrier island geomorphology, and habitat availability for species such as the piping plover (Charadrius melodus)... Tags: Botany, Ecology, Land Use Change, coastal processes, erosion, All tags... geographic information systems, geomorphology, geospatial analysis, geospatial datasets, hazards, land use and land cover, sea-level change, transect sampling, vegetation, Fewer tags A GIS Compilation of Vector Shorelines for Puerto Rico from 2015 to 2018 The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. These shorelines are compiled and analyzed in the Digital Shoreline Analysis System software to compute their rates of change. Keeping a record of historical shoreline positions is an effective method to monitor change over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. This data release, and other associated products, represent... Tags: Atlantic Coast, Caribbean, Coastal and Marine Geology Program, Culebra, DSAS, All tags... Digital Shoreline Analysis System, Geography, Geomorphology, MHW, Mean High Water, Puerto Rico, Puerto Rico Shoreline Change, Shoreline, Shoreline Change, U.S. Geological Survey, USGS, United States, University of Puerto Rico, Vieques, WHCMSC, Woods Hole Coastal and Marine Science Center, coastal processes, environment, geoscientificInformation, geospatial datasets, oceans, Fewer tags A GIS Compilation of Vector Shorelines and Shoreline Classification for Puerto Rico from 1970 and 2010 The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photos or topographic surveys, as well as contemporary sources like lidar point clouds and digital elevation models (DEMs). These shorelines are compiled and analyzed in the Digital Shoreline Analysis System (DSAS) software to compute rates of change. It is useful to keep a record of historical shoreline positions as a method of monitoring change over time to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. This data release and other associated products represent an expansion... Tags: Aerial Photos, Atlantic Coast, Caribbean, Coastal and Marine Geology Program, Digital Shoreline Analysis System, All tags... Geography, Geomorphology, Groundwater Exit, Historical Shorelines, Oceans, Puerto Rico, Shoreline, Shoreline Change, Shoreline Classification, U.S. Geological Survey, UPR, USGS, United States, University of Puerto Rico, University of Puerto Rico Graduate School of Planning, WDL, Wed/Dry Line, Woods Hole Coastal and Marine Science Center, coastal processes, environment, geoscientificInformation, geospatial data, Fewer tags Historical Shorelines for Puerto Rico from 1901 to 1987 The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from both older sources, such as aerial photograph or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. These shorelines are compiled and analyzed in the Digital Shoreline Analysis System software (v5.1) to compute their rates of change. Keeping a record of historical shoreline positions is an effective method to monitor change over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. This data release, and other associated products, represent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aerial Photographs, Atlantic Ocean, Caribbean, Coastal and Marine Geology Program, Digital Shoreline Analysis System (DSAS), All tags... Geography, Geomorphology, High Water Line, Historical Shorelines, Puerto Rico, Shoreline, Shoreline Change, T-sheet, U.S. Geological Survey (USGS), USGS, United States, Wet/Dry Line, Woods Hole Coastal and Marine Science Center (WHCMSC), Fewer tags