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Location Folder Show Tree ROOT _ScienceBase Catalog __Pacific Coastal and Marine Science Center A GIS compilation of vector shorelines and coastal bluff edge positions, and associated rate-of-change data for Barter Island, Alaska Aerial imagery and structure-from-motion data products from a UAS survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Lone Tree Point, Kiket Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Post Point, Bellingham Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, June 2019 More... Filters Date Range Past year (9) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts PCMSC Science Data Coordinator Pacific Coastal and Marine Science Center U.S. Geological Survey - ScienceBase U.S. Geological Survey Natural Hazards More... Categories Data (4) Tag Types Theme (6) Place (6) USGS Scientific Topic Keyword (8) Tag Schemes None (5) Geographic Names Information System (GNIS) (4) USGS Thesaurus (6) ISO 19115 Topic Category (6) Marine Realms Information Bank (MRIB) keywords (4) Common geographic areas (2) Data Categories for Marine Planning (4) More... View Results as: JSON ATOM CSV Browse Folder

Projected flooding extents and depths based on 10-, 50-, 100-, and 500-year wave-energy return periods, with and without coral reefs, for the States of Hawaii and Florida, the Territories of Guam, American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the Commonwealth of the Northern Mariana Islands This data release provides flooding extent polygons (flood masks) and depth values (flood points) based on wave-driven total water levels for 22 locations within the States of Hawaii and Florida, the Territories of Guam, American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the Commonwealth of the Northern Mariana Islands. For each of the 22 locations there are eight associated flood mask polygons and flood depth point files: 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. These flood masks can be combined with economic, ecological, and engineering tools to provide a rigorous financial valuation... Tags: American Samoa, CMHRP, CNMI, Cayo Vieques, Coastal and Marine Hazards and Resources Program, All tags... Commonwealth of the Northern Mariana Islands, Coral Reef, Culebra, Florida Keys, Florida Peninsula, Guam, Habitat, Hawaiian Islands, Isla de Culebra, Island of Hawai'i, Island of Hawaii, Island of Puerto Rico, Kaho'olawe, Kahoolawe, Kaua'i, Kauai, Key West, Lana'i, Lanai, Manua, Maui, Miami, Moloka'i, Molokai, Ni'ihau, Niihau, O'ahu, Oahu, Ofu-Olosega, PCMSC, Pacific Coastal and Marine Science Center, Palm Beach, Puerto Rico, Saint Croix, Saint John, Saint Thomas, Saipan Island, St. Croix, St. John, St. Thomas, State of Florida, State of Hawaii, Tau, Tinian Island, Tutuila, U.S. Geological Survey, U.S. Virgin Islands, USGS, USVI, United States of America, Vieques, Virgin Islands, coastal processes, coral reef communities, environment, flooding, geoscientificInformation, oceans, reef, reef ecosystems, Fewer tags Alaska coastal orthoimagery and elevation data: Icy Cape to Cape Prince of Wales, 2016 This data release presents orthoimagery and elevation data based on aerial imagery of the Alaska coastline between Icy Cape and Cape Prince of Wales. These data products and the source aerial imagery were generated by Fairbanks Fodar for the U.S. Geological Survey. Aerial imagery was collected in 2016 between August 29 and September 4 and extends from the shoreline to 400-4000 meters inland. Photographs were captured using a Nikon D800E mounted on a Cessna 170B. Data products were derived from aerial images and precise Global Positioning System (GPS) navigation data using structure-from-motion (SfM) techniques. This dataset includes point cloud data in LAZ format as well as orthoimagery and digital elevation models... Tags: Geomorphology, Remote Sensing National Assessment of Shoreline Change: A GIS compilation of updated vector shorelines and associated shoreline change data for the north coast of Alaska, U.S. Canadian border to Icy Cape Beaches are a dynamic interface between water and land and are frequently subjected to a range of natural hazards, which include flooding, storm effects, and coastal erosion. The U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards across the Nation. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is one of the most commonly monitored indicators of environmental change and it is an easily understood feature marking the location of a beach through time. A principal component of the USGS national assessment of shoreline change has been to develop... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climatology, Geomorphology, Land Use Change A GIS compilation of vector shorelines and coastal bluff edge positions, and associated rate-of-change data for Barter Island, Alaska This dataset consists of rate-of-change statistics for the coastal bluffs and shorelines at Barter Island, Alaska, for the time period 1947 to 2020. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect bluff edges and shorelines establishing measurement points, which are then used to calculate change rates. Tags: Arctic National Wildlife Refuge, Arctic Ocean, Barter Island, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... DSAS, Digital Shoreline Analysis System, Geomorphology, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Physical habitats and geomorphology, State of Alaska, U.S. Geological Survey, USGS, coastal erosion, coastal processes, environment, geomorphology, geoscientificInformation, geospatial datasets, oceans, permafrost, shoreline accretion, Fewer tags Orthophotomosaics, elevation point clouds, digital surface elevation models and supporting data from the north coast of Barter Island, Alaska Aerial photographs were collected from a small, fixed-wing aircraft over the coast of Barter Island, Alaska on three separate dates: July 01 2014, September 07 2014, and July 05 2015. Precise aircraft position information and structure-from-motion photogrammetric methods were combined to derive high-resolution orthophotomosaics and elevation point clouds. Ground control acquired using precise positioning were used to co-register the data sets to assess accuracy of the data sets. Data were shifted into common earth-based datum established from surveyed ground control points and edited to remove outliers, structures, and spurious elevation values associated with moving water surfaces. The horizontal coordinate system... Categories: Data; Tags: Arctic National Wildlife Refuge, Barter Island, Beaufort Sea, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Geomorphology, Kaktovik, LAS, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Remote Sensing, State of Alaska, Structure-from-Motion, U.S. Geological Survey, USGS, United States of America, aerial images, coastal processes, elevation, elevation, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, oceans, point cloud, Fewer tags Historical shorelines and morphological metrics for barrier islands and spits along the north coast of Alaska between Cape Beaufort and the U.S.-Canadian border, 1947 to 2019 A suite of morphological metrics were derived from existing shoreline and elevation datasets for barrier islands and spits located along the north-slope coast of Alaska between Cape Beaufort and the U.S.-Canadian border. This dataset includes barrier shorelines and polygons attributed with morphological metrics from five time periods: 1950s, 1980s, 2000s, 2010s, and 2020s. Tags: Alaska, Arctic, Beaufort Sea, Chukchi Sea, Geomorphology, All tags... North Slope coast, barrier island, barrier island migration, barrier spit, coastal processes, geoscientificInformation, permafrost, shoreline change, Fewer tags Modeled 21st century storm surge, waves, and coastal flood hazards and supporting oceanographic and geological field data (2010 and 2011) for Arey and Barter Islands, Alaska and vicinity Changes in Arctic coastal ecosystems in response to global warming may be some of the most severe on the planet. A better understanding and analysis of the rates at which these changes are expected to occur over the coming decades is crucial in order to delineate high-priority areas that are likely to be affected by climate changes. The data provided in this release are part of a study that assessed the likelihood of changes to a barrier island – lagoon systems in response to projected changes in atmospheric and oceanographic forcing associated with Arctic warming. Arey Lagoon and the surrounding area near Barter Island, Alaska, were focused upon as part of this pilot study. The study investigates the dominance... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Arctic, Barter Island, Bathymetry and Elevation, Geomorphology, All tags... Marine Geology, North Slope, borehole temperature logging, effects of climate change, flooding, geoscientificInformation, ocean currents, ocean salinity, ocean waves, oceanographic aspects of global climate change, permafrost, sediment analysis, soil temperature, storm surge, tundra, water temperature, Fewer tags National assessment of shoreline change: A GIS compilation of vector shorelines and associated shoreline change data for the north coast of Alaska, Icy Cape to Cape Prince of Wales Beach erosion is a persistent problem along most open-ocean shores of the United States. Along the Arctic coast of Alaska, coastal erosion is widespread and threatens communities, defense and energy-related infrastructure, and coastal habitat. As coastal populations continue to expand and infrastructure and habitat are increasingly threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There also is a need for a comprehensive analysis of shoreline change with metrics that are consistent from one coastal region to another. To meet these national needs, the U.S. Geological Survey is conducting an analysis of historical shoreline... Tags: Geography, Geomorphology, Remote Sensing Nearshore bathymetry data from the Unalakleet River mouth, Alaska, 2019 This data release presents nearshore bathymetry data collected at the mouth of the Unalakleet River in Alaska, near the city of Unalakleet. The data were collected in August 2019 by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Nearshore bathymetry was measured along survey lines from the shore to a depth of approximately -7.4 m NAVD88 and in a portion of the estuary closest to the mouth. Bathymetry data were collected using small boat equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9 degree beam. Depths from the seafloor to the echosounder... Categories: Data; Tags: Alaska, Bathymetry and Elevation, CMHRP, City of Unalakleet, Coastal and Marine Hazards and Resources Program, All tags... GPS measurement, Geomorphology, Global Positioning System (GPS) observations, Nome Census Area, Norton Sound, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Remote Sensing, U.S. Geological Survey, USGS, Unalakleet, Unalakleet River, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags