Li H. Erikson Ann E. Gibbs Bruce M. Richmond Benjamin M. Jones Curt D. Storlazzi Karin A. Ohman 20201207 Raster Digital Data Set (geoTIFF) data release DOI:10.5066/P9LGYO2Q Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/P9LGYO2Q https://www.sciencebase.gov/catalog/item/5eea6bd482ce3bd58d856683 Li H. Erikson Ann E. Gibbs Bruce M. Richmond Benjamin M. Jones Curt D. Storlazzi Karin A. Ohman 2020 data release DOI:10.5066/P9LGYO2Q Pacific Coastal and Marine Science Center, Santa Cruz, CA U.S. Geological Survey https://doi.org/10.5066/P9LGYO2Q A seamless topographic-bathymetric digital elevation model for an area around Arey Lagoon, Alaska created from a combination of lidar elevation data collected in 2009, single-beam bathymetric data collected in 2011, and NOS sounding data collected in 1948. Data were generated as a foundation data set for modeling estimated future ocean storm conditions (magnitude and frequency), coastal flooding potentials, and barrier island migration rates, for the 21st century and assess changes with respect to past conditions. Additional information about the field activity from which these data were derived is available online at: http://cmgds.marine.usgs.gov/fan_info.php?fan=ID411AR Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 19480101 20110711 ground condition at time data were collected Complete None planned -144.191068 -143.657291 70.173928 70.014645 ISO 19115 Topic Category geoscientificInformation USGS Thesaurus bathymetry topography single-beam echo sounder lidar Marine Realms Information Bank (MRIB) keywords numerical modeling flooding Data Categories for Marine Planning predictions None U.S. Geological Survey USGS Coastal and Marine Hazards and Resources Program CMHRP Pacific Coastal and Marine Science Center PCMSC USGS Metadata Identifier USGS:5eea6bd482ce3bd58d856683 Geographic Names Information System (GNIS) Arctic National Wildlife Refuge Arctic Ocean Barter Island Arey Island Arey Lagoon North Slope State of Alaska None USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes. U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

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Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov https://www.sciencebase.gov/catalog/file/get/5eea6bd482ce3bd58d856683?name=BTI_AreyLagoonDigitalElevationModel.jpg&allowOpen=true Color image of Arey Lagoon digital elevation model. jpg Arctic Landscape Conservation Cooperative (ALCC), U.S. Fish & Wildlife Service Data were generated with Deltares Quickin and GIS software (ESRI ArcMap) on Personal Desktop Computers (PC) equipped with the Windows 7 operating system. Li H. Erikson Ann E. Gibbs Bruce M. Richmond Curt D. Storlazzi Benjamin M. Jones Karin A. Ohman 2020 Erikson, L.H., Gibbs, A.E., Richmond, B.M., Storlazzi, C.D., Jones, B.M., and Ohman, K.A., 2020, Changing storm conditions in response to projected 21st century climate change and the potential impact on an arctic barrier island–lagoon system—A pilot study for Arey Island and Lagoon, eastern Arctic Alaska: U.S. Geological Survey Open-File report 2020-1142 https://doi.org/10.3133/ofr20201142 A formal accuracy assessment was not conducted. Results are within the expected range. Data have been checked for outliers and omissions. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Accuracy is considered to be less than +/- 4 based on the accuracy of the source data sets. A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Accuracy is considered to be less than +/- 30 cm based on the accuracy of the source data sets. U.S. Geological Survey 2015 LAS point cloud online NOAA Digital Coast https://coast.noaa.gov/digitalcoast/data/ Digital Resources 20090905 ground condition at time data were collected lidar Lidar data were used as the source of terrestrial elevation in the digital elevation model. U.S. Geological Survey 2020 comma-delimited text online U.S. Geological Survey https://www.sciencebase.gov/catalog/file/get/5ee2b4ee82ce3bd58d7e171e?name=BTI_2011Bathymetry_data.zip Digital Resources 20110706 20110907 ground condition at time data were collected single-beam bathymetry Single-beam bathymetry data were used as the source of seabed elevation in the digital elevation model. DOC/NOAA/NOS/OCS/HSD. Hydrographic Surveys Division, Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce 1948 comma-delimited text online NOAA National Centers for Environmental Information https://maps.ngdc.noaa.gov/viewers/bathymetry/ Digital Resources 19480101 19481231 ground condition at time data were collected NOS soundings NOS soundings were used as a source of seabed elevation in the digital elevation model. Lidar data points (relative to the GRS80 ellipsoid) were shifted vertically upward by 2.3 m to an approximate Mean Sea Level vertical. Adjusted lidar points, single-beam bathymetry, and NOS soundings data were combined and gridded to a 5-m resolution using Delaunay triangulation in Deltares Quickin software. lidar single-beam bathymetry NOS Soundings 2011 Performed minor edits to the metadata to correct typos. No data were changed 20211013 U.S. Geological Survey Susan A. Cochran Geologist Mailing and Physical

2885 Mission Street

Santa Cruz CA 95060 831-460-7545 scochran@usgs.gov Raster Pixel 3370 3900 Universal Transverse Mercator 7 0.9996 -141.0 0.0 500000 0.0 coordinate pair 5 5 meters GCS_WGS_1984 D_WGS_1984 6378137 298.257223563 Mean Sea Level 0.01 meters Explicit elevation coordinate included with horizontal coordinates Digital elevation model (DEM) in raster format. Pixel value represents elevation/depth relative to approximate mean sea level. U.S. Geological Survey U.S. Geological Survey - ScienceBase mailing and physical

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Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov These data are available in .tif format accompanied by CSDGM FGDC compliant metadata and an example browse graphic. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. geoTIFF zip file contains the geoTIFF file and the associated metadata No compression applied 25.7 https://www.sciencebase.gov/catalog/file/get/5eea6bd482ce3bd58d856683 https://doi.org/10.5066/P9LGYO2Q Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of data, metadata, and a browse graphic. The second link points to a landing page for all the files. The third link points to a landing page for the entire data release. None. These data can be viewed with any raster reading software. 20211013 U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998