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Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (39) Raster (5) Types Map Service (44) OGC WFS Layer (39) OGC WMS Layer (39) Shapefile (39) Citation (36) GeoTIFF (5) Raster (5) Contacts Ann E Gibbs U.S. Geological Survey - ScienceBase U.S. Geological Survey Karin Ohman Bruce M Richmond More... Categories Data (45) Software (1) Tag Types Theme (92) Tags (with Scheme=Marine Realms Information Bank (MRIB) Keywords) shoreline accretion (27) shoreline erosion (27) coral reef communities (7) flooding (7) reef (7) field observation (3) marine geophysics (3) More... View Results as: JSON ATOM CSV

Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Short-Term Linear Regression Rate Calculations for the Sheltered East Beaufort Sea coast of Alaska between the U.S. Canadian Border and the Hulahula River This dataset consists of short-term (~32 years) shoreline change rates for the north coast of Alaska between the U.S. Canadian Border and the Hulahula River. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Short-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1978 and 2010. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate short-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ANWR, Arctic, Arctic National Wildlife Refuge, Barter Island, Beaufort Sea, All tags... CMGP, Coastal and Marine Geology Program, DSAS, Demarcation Bay, Digital Shoreline Analysis System, Habitat, Hulahula River, Jago River, Kaktovik, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, North Slope, Okpilak River, PCMSC, Pacific Coastal and Marine Science Center, Shoreline, Shoreline Change, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Short-Term Linear Regression Rate Calculations for the Exposed East Chukchi Sea coast of Alaska between the Point Barrow and Icy Cape This dataset consists of short-term (~31 years) shoreline change rates for the north coast of Alaska between the Point Barrow and Icy Cape. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Short-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1979 and 2010. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate short-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Barrow, CMGP, Chukchi Sea, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, Habitat, NPR-A, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Shoreline, Shoreline Change, State of Alaska, U.S. Geological Survey, USGS, United States of America, Utqiagvik, Wainwright, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Transgressive Contours--Point Conception to Hueneme Canyon, California This part of DS 781 presents data for the transgressive contours for the Point Conception to Hueneme Canyon, California, region. The vector file is included in "TransgressiveContours_PointConceptionToHuenemeCanyon.zip," which is accessible from http://dx.doi.org/10.5066/F7891424. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Conception and Hueneme Canyon was generated from seismic-reflection data collected in 2014 (USGS activity 2014-632-FA) supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). Water depths determined from bathymetry data were... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carpinteria, Coal Oil Point, Gaviota, Hueneme Canyon, Pacific Ocean, All tags... Point Conception, Refugio Beach, Santa Barbara, Santa Barbara Channel, Santa Barbara County, State of California, Ventura, coastal geology, environment, geoscientificInformation, geospatial datasets, maps and atlases, marine geology, oceans, sediment deposition, sediment thickness, stratigraphic thickness, Fewer tags Isopachs--Point Conception to Hueneme Canyon, California This part of DS 781 presents data for the isopachs for the Point Conception to Hueneme Canyon, California, region. The vector data file is included in "Isopachs_PointConceptionToHuenemeCanyon.zip," which is accessible from https://doi.org/10.5066/F7891424. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Conception and Hueneme Canyon was generated from seismic-reflection data collected in 2014 (USGS activity 2014-632-FA) supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). This sediment thickness layer was merged with a previously published sediment... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carpinteria, Coal Oil Point, Gaviota, Hueneme Canyon, Pacific Ocean, All tags... Point Conception, Refugio Beach, Santa Barbara, Santa Barbara Channel, Santa Barbara County, State of California, Ventura, coastal geology, environment, geoscientificInformation, geospatial datasets, maps and atlases, marine geology, oceans, sediment deposition, sediment isopach, sediment thickness, stratigraphic thickness, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Long-Term Linear Regression Rate Calculations for the Exposed Central Beaufort Sea coast of Alaska between the Hulahula River and the Colville River This dataset consists of long-term (~63 years) shoreline change rates for the north coast of Alaska between the Hulahula River and the Colville River. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1947 and 2010. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ANWR, Arctic, Arctic National Wildlife Refuge, Beaufort Sea, CMGP, All tags... Canning River, Coastal and Marine Geology Program, Colville River, DSAS, Digital Shoreline Analysis System, Habitat, Harrison Bay, Kuparuk River, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Prudhoe Bay, Sagavanirktok River, Shoreline, Shoreline Change, Staines River, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Offshore baseline for the sheltered West Beaufort Sea, Alaska coastal region (Colville River to Point Barrow) generated to calculate shoreline change rates This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for the sheltered north coast of Alaska coastal region between the Colville River and Point Barrow for the time period 1947 to 2012. This baseline layer serves as the starting point for all transects cast by the DSAS application and can be used to establish measurement points used to calculate shoreline-change rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Baseline, Beaufort Sea, CMGP, Cape Halkett, All tags... Coastal and Marine Geology Program, Colville River, DSAS, Dease Inlet, Digital Shoreline Analysis System, Drew Point, Elson Lagoon, Habitat, Harrison Bay, NPR-A, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Point Barrow, Shoreline, Shoreline Change, Smith Bay, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Coastal and Marine Ecological Classifcation Standard (CMECS) geoforms of the Oregon outer continental shelf (OCS) proposed wind farm site This polygon shapefile is part of a data release of the Oregon outer continental shelf (OCS) proposed wind farm map site. The polygons have attribute values for Coastal and Marine Ecological Classification Standard (CMECS) geoforms, substrate, and modifiers. CMECS is the U.S. government standard for marine habitat characterization and was developed by representatives from a consortium of federal agencies. The standard provides an ecologically relevant structure for biologic, geologic, chemical, and physical habitat attributes. This map illustrates the geoform and substrate components of the standard. The CMECS classes are documented at https://www.fgdc.gov/standards/projects/FGDC-standards-projects/cmecs-folder/CMECS_Version_06-2012_FINAL.pdf.... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: BOEM, Bureau of Ocean Energy Management, CMECS, CMGP, Coastal and Marine Geology Program, All tags... Coos Bay, Coos Bay, Coos County, Oregon, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Physical Habitats and Geomorphology, State of Oregon, U.S. Geological Survey, USGS, geoscientificInformation, marine geology, marine geophysics, marine geophysics, oceans, sea-floor characteristics, Fewer tags Multibeam acoustic-backscatter data collected in 2015 near Cross Sound, southeast Alaska, during field activity 2015-629-FA In 2015 the U.S. Geological Survey, Pacific Coastal and Marine Science Center, in cooperation with the Alaska Department of Fish and Game (ADFG), collected bathymetry and acoustic-backscatter data near Cross Sound in southeast Alaska using a Reson 7111 multibeam echosounder mounded to the ADFG R/V Solstice. This section of the data release provides the acoustic-backscatter data as a GeoTIFF at 10-m spatial resolution. All files have accompanying FGDC metadata. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, Cross Sound, Distributions, All tags... PCMSC, Pacific Coastal and Marine Science Center, Seafloor Topography, State of Alaska, U.S. Geological Survey, USGS, field observation, geoscientificInformation, geospatial datasets, image mosaics, marine geophysics, multibeam sonar, sea-floor acoustic reflectivity, sea-floor characteristics, seabed, Fewer tags Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the Territory of Puerto Rico (the islands of Culebra, Puerto Rico, and Vieques) This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the Territory of Puerto Rico (the islands of Culebra, Puerto Rico, and Vieques). For each island there are 8 associated flood mask and flood depth shapefiles: one for each four nearshore wave energy return periods (rp; 10-, 50-, 100-, and 500-years) and both with (wrf) and without (worf) the presence of coral reefs. Flooding depth point data are also presented as a comma-separated value (.csv) text file. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Cayo Vieques, Coastal and Marine Hazards and Resources Program, Coral Reef, Culebra, All tags... Habitat, Isla de Culebra, Island of Puerto Rico, PCMSC, Pacific Coastal and Marine Science Center, Puerto Rico, U.S. Geological Survey, USGS, United States of America, Vieques, coastal processes, coral reef communities, environment, flooding, geoscientificInformation, oceans, reef, reef ecosystems, Fewer tags Navigation tracklines from a 2015 multibeam survey near Cross Sound, southeast Alaska, during field activity 2015-629-FA In 2015 the U.S. Geological Survey, Pacific Coastal and Marine Science Center, in cooperation with the Alaska Department of Fish and Game (ADFG), collected bathymetry and acoustic-backscatter data near Cross Sound in southeast Alaska using a Reson 7111 multibeam echosounder mounded to the ADFG R/V Solstice. This section of the data release provides the survey tracklines as a GIS shapefile. All files have accompanying FGDC metadata. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Cross Sound, Distributions, PCMSC, All tags... Pacific Coastal and Marine Science Center, State of Alaska, U.S. Geological Survey, USGS, field observation, geoscientificInformation, geospatial datasets, marine geophysics, navigation, navigational data, polyline shapefile, tracklines, Fewer tags Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the Commonwealth of the Northern Mariana Islands (the islands of Saipan and Tinian) This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for Commonwealth of the Northern Mariana Islands (the islands of Saipan and Tinian). For each island there are 8 associated flood mask and flood depth shapefiles: one for each of four nearshore wave energy return periods (rp; 10-, 50-, 100-, and 500-years) and both with (wrf) and without (worf) the presence of coral reefs. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, CNMI, Coastal and Marine Hazards and Resources Program, Commonwealth of the Northern Mariana Islands, Coral Reef, All tags... Habitat, PCMSC, Pacific Coastal and Marine Science Center, Saipan Island, Tinian Island, U.S. Geological Survey, USGS, United States of America, coastal processes, coral reef communities, environment, flooding, geoscientificInformation, oceans, reef, reef ecosystems, Fewer tags Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the Territory of the U.S. Virgin Islands (the islands of Saint Croix, Saint John, and Saint Thomas) This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the Territory of the U.S. Virgin Islands (the islands of Saint Croix, Saint John, and Saint Thomas). For each island there are 8 associated flood mask and flood depth shapefiles: one for each four nearshore wave energy return periods (rp; 10-, 50-, 100-, and 500-years) and both with (wrf) and without (worf) the presence of coral reefs. Flooding depth point data are also presented as a comma-separated value (.csv) text file. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Coral Reef, Habitat, PCMSC, All tags... Pacific Coastal and Marine Science Center, Saint Croix, Saint John, Saint Thomas, St. Croix, St. John, St. Thomas, U.S. Geological Survey, U.S. Virgin Islands, USGS, USVI, United States of America, Virgin Islands, coastal processes, coral reef communities, environment, flooding, geoscientificInformation, oceans, reef, reef ecosystems, Fewer tags Shorelines of the Western Beaufort Sea, Alaska coastal region (Colville River to Point Barrow) used in shoreline change analysis This dataset includes shorelines from 65 years ranging from 1947 to 2012 for the north coast of Alaska between the Colville River and Point Barrow. Shorelines were compiled from topographic survey sheets (T-sheets; National Oceanic and Atmospheric Administration (NOAA)), aerial orthophotographs (U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), and lidar elevation data(USGS). Historical shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. These data are used to calculate rates of shoreline change for the U.S. Geological Survey's National Assessment of Shoreline Change Project. Rates of long-term and short-term... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Beaufort Sea, CMGP, Cape Halkett, Coastal and Marine Geology Program, All tags... Colville River, DSAS, Dease Inlet, Digital Shoreline Analysis System, Drew Point, Elson Lagoon, Habitat, Harrison Bay, NPR-A, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Point Barrow, Shoreline, Shoreline Change, Smith Bay, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Long-Term Linear Regression Rate Calculations for the Exposed East Chukchi Sea coast of Alaska between Point Barrow and Icy Cape This dataset consists of long-term (~65 years) shoreline change rates for the north coast of Alaska between Point Barrow and Icy Cape. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1947 and 2012. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Barrow, CMGP, Chukchi Sea, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, Habitat, NPR-A, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Shoreline, Shoreline Change, State of Alaska, U.S. Geological Survey, USGS, United States of America, Utqiagvik, Wainwright, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Shorelines of the Eastern Chukchi Sea, Alaska coastal region (Point Barrow to Icy Cape) used in shoreline change analysis This dataset includes shorelines from 65 years ranging from 1947 to 2012 for the north coast of Alaska between Point Barrow and Icy Cape. Shorelines were compiled from topographic survey sheets and Nautical Charts (T-sheet, Nautical Chart; National Oceanic and Atmospheric Administration (NOAA)), aerial orthophotographs (U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), satellite imagery (State of Alaska), and lidar elevation data (USGS). Historical shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. These data are used to calculate rates of shoreline change for the U.S. Geological Survey's National Assessment... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Barrow, CMGP, Chukchi Sea, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, Habitat, NPR-A, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Peard Bay, Shoreline, Shoreline Change, State of Alaska, U.S. Geological Survey, USGS, United States of America, Utqia?vik, Wainwright, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Projected flood extent polygons and flood depth points based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for American Samoa (the islands of Tutuila, Ofu-Olosega, and Tau) This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for American Samoa (the islands of Tutuila, Ofu-Olosega, and Tau). For each island there are 8 associated flood mask and flood depth shapefiles: one for each of four nearshore wave energy return periods (rp; 10-, 50-, 100-, and 500-years) and both with (wrf) and without (worf) the presence of coral reefs. Flooding depth point data are also presented as a comma-separated value (.csv) text file. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: American Samoa, CMHRP, Coastal and Marine Hazards and Resources Program, Coral Reef, Habitat, All tags... Manua, Ofu-Olosega, PCMSC, Pacific Coastal and Marine Science Center, Tau, Tutuila, U.S. Geological Survey, USGS, United States of America, coastal processes, coral reef communities, environment, flooding, geoscientificInformation, oceans, reef, reef ecosystems, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Short-Term Linear Regression Rate Calculations for the Exposed Central Beaufort Sea coast of Alaska between the Hulahula River and the Colville River This dataset consists of short-term (~31 years) shoreline change rates for the north coast of Alaska between the Hulahula River and the Colville River. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Short-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1979 and 2010. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate short-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ANWR, Arctic, Arctic National Wildlife Refuge, Beaufort Sea, CMGP, All tags... Canning River, Coastal and Marine Geology Program, Colville River, DSAS, Digital Shoreline Analysis System, Habitat, Harrison Bay, Kuparuk River, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Prudhoe Bay, Sagavanirktok River, Shoreline, Shoreline Change, Staines River, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Long-Term Linear Regression Rate Calculations for the Sheltered West Beaufort Sea coast of Alaska between the Colville River and Point Barrow This dataset consists of long-term (~65 years) shoreline change rates for the north coast of Alaska between the Colville River and Point Barrow. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1947 and 2012. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Beaufort Sea, CMGP, Cape Halkett, Coastal and Marine Geology Program, All tags... Colville River, DSAS, Dease Inlet, Digital Shoreline Analysis System, Drew Point, Elson Lagoon, Habitat, Harrison Bay, NPR-A, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, National Petroleum Reserve-Alaska, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Point Barrow, Shoreline, Shoreline Change, Smith Bay, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags ViTexOCR; A script to extract text overlays from digital video The ViTexOCR script presents a new method for extracting navigation data from videos with text overlays using optical character recognition (OCR) software. Over the past few decades, it was common for videos recorded during surveys to be overlaid with real-time geographic positioning satellite chyrons including latitude, longitude, date and time, as well as other ancillary data (such as speed, heading, or user input identifying fields). Embedding these data into videos provides them with utility and accuracy, but using the location data for other purposes, such as analysis in a geographic information system, is not possible when only available on the video display. Extracting the text data from imagery using software... Categories: Software; Types: Citation, Downloadable; Tags: CMGP, Coastal and Marine Geology Program, PCMSC, Pacific Coastal and Marine Science Center, Remote Sensing, All tags... U.S. Geological Survey, USGS, computer science, scientific software, software development, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.3 Transects with Long-Term Linear Regression Rate Calculations for the Sheltered Central Beaufort Sea coast of Alaska between the Hulahula River and the Colville River This dataset consists of long-term (~63 years) shoreline change rates for the north coast of Alaska between the Hulahula River and the Colville River. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate-of-change method based on available shoreline data between 1947 and 2010. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ANWR, Arctic, Arctic National Wildlife Refuge, Beaufort Sea, CMGP, All tags... Canning River, Coastal and Marine Geology Program, Colville River, DSAS, Digital Shoreline Analysis System, Habitat, Harrison Bay, Kuparuk River, National Assessment of Coastal Change Hazards, National Assessment of Shoreline Change Project, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Prudhoe Bay, Sagavanirktok River, Shoreline, Shoreline Change, Staines River, State of Alaska, U.S. Geological Survey, USGS, United States of America, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags 1 2 3 »