Li H. Erikson Ann E. Gibbs Bruce M. Richmond Benjamin M. Jones Curt D. Storlazzi Karin A. Ohman 20201207 comma-delimited text 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/5ee2b4b082ce3bd58d7e171c 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 Beach elevation profiles were measured along 29 shore-normal transects on and around Arey and Barter Islands, Alaska in August 2010 and July 2011. Profile data are available in a single comma-delimited file and a zip file including multiple .jpg images that show a visual representation of the individual profiles. Data were obtained to provide inputs and validation data for a numerical model, and additionally to provide baseline environmental data previously not available. Additional information about the field activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=ID411AR https://cmgds.marine.usgs.gov/fan_info.php?fan=L610AK Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20100827 20110711 ground condition at time data were collected Complete None planned -144.010150 -143.624810 70.134200 70.086590 ISO 19115 Topic Category geoscientificInformation USGS Thesaurus coastal processes geomorphology topography geospatial datasets 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:5ee2b4b082ce3bd58d7e171c 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. 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/5ee2b4b082ce3bd58d7e171c?name=BTI_20102011BeachProfile_LocationMap.jpg&allowOpen=true Map of sediment samples, mean grain size distribution, and beach profile locations. JPEG Arctic Landscape Conservation Cooperative (ALCC), U.S. Fish & Wildlife Service Data were post-processed using Ashtec, Trimble, Humminbird 898C, and MATLAB on a 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 No formal accuracy assessment was performed. Standard operating procedures were used to collect all data and measurements are within the expected range No formal logical accuracy tests were conducted. Data has been checked for duplications and omissions. Missing data have been filled with NaN values. Where data were not collected a value of n/a value is used. 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. Point locations along the beach profiles were logged with an Ashtech ZXtreme roving global positioning system (GPS) and post-processed using data collected with a ZXtreme base station on Barter Island. Horizontal accuracy is estimated to be 20 cm. A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Point locations along the beach profiles were logged with an Ashtech ZXtreme roving global positioning system (GPS) and post-processed using data collected with a ZXtreme base station on Barter Island. Vertical accuracy is estimated to be 20 cm. Beach elevation profiles were measured along 29 shore-normal transects on and around Arey and Barter Islands, Alaska in August 2010 and July 2011. Profiles were collected at 14 locations in 2010 and 15 locations in 2011. No data were collected at an AR-12 site. Position information were obtained with two Ashtech ZXtreme roving global positioning system (GPS) units in a backpack configuration. A base station using a third ZXtreme was established on Barter Island for the duration of the field campaigns. Rover data were collected to within 0.20 m accuracy using post-processed measurements from the base station. 20111020 Cumulative distance along the profile transect was calculated from the Easting and Northing coordinates. Approximate mean sea level (Ht_MSL) elevations were calculated by adding an empirically determined 2.3 m to the height above ellipsoid (Ht_Ell) values. Cumulative distance along the profile transect was plotted against Ht_MSL elevations in Microsoft Excel. Profiles exported from Excel were imported into and edited in Adobe Illustrator to identify coincident sediment sample locations and morphological features, for example Berm Crest (BC), Water Line (WL), Lagoon Shoreline (LS). Files were exported to final jpeg format using the naming convention TransecID.jpg. 20111020 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

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Santa Cruz CA 95060 831-460-7545 scochran@usgs.gov Point Point 9135 0.00001 0.00001 Decimal degrees WGS84 WGS84 6378137.0 298.257223563 WGS84 0.01 meters Explicit elevation coordinate included with horizontal coordinates BTI_20102011BeachProfiles_Data.csv Beach profile measurements Producer defined TransectID Beach profile transect identification Producer defined Unique identifier for the beach profile given in the field Longitude Longitude coordinate Producer defined -144.010151 -143.624812 Decimal degrees 0.000001 Latitude Latitude coordinate Producer defined 70.086591 70.134202 Decimal degrees 0.000001 Northing Northing coordinate Producer defined 7778345.32 7783060.91 Meters 0.01 Easting Easting coordinate Producer defined 385637.02 400475.74 Meters 0.01 AcquireDate Acquisition date Producer defined 08/27/2010 07/11/2011 CumlDist_m Cumulative distance from start of profile Producer defined 0 860.31 Meters 0.01 Ht_Ell Height relative to WGS84 ellipsoid Producer defined -3.82 10.08 Meters 0.01 Ht_MSL Height relative to approximate mean sea level Producer defined -1.52 12.38 Meters 0.01 Site General location of beach profile Producer defined Central Barter Island Exposed coast fronting Barter Island bluffs Producer defined Arey Island Main Arey Island Producer defined East Arey Island Eastern portion of Arey Island Producer defined Barter Island - western spit Barrier spit on the west side of Barter Island Producer defined The first line of the csv file is a header line. 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 csv format contained in a single zip file which also includes CSDGM FGDC compliant metadata, a sample location map, and a zip file including jpeg images showing a visual representation of the 29 profiles. 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. various zip file contains the csv, xml, and jpg files zip 15.1 https://www.sciencebase.gov/catalog/file/get/5ee2b4b082ce3bd58d7e171c https://www.sciencebase.gov/catalog/file/get/5ee2b4b082ce3bd58d7e171c?name=BTI_20102011BeachProfiles_Data.csv https://www.sciencebase.gov/catalog/item/5ee2b4b082ce3bd58d7e171c?name=BTI_20102011BeachProfiles_Figures.zip https://www.sciencebase.gov/catalog/item/5ee2b4b082ce3bd58d7e171c 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 the csv data, beach profile jpgs, a sample location map, and metadata. The second link is a direct link to download the beach profile csv file only (834 KB). The third link is a direct link to download the beach profile images only (13.1 MB). The fourth link points to the landing page for all the 2010 and 2011 beach profile files. The fifth link points to the landing page for the entire data release. None. These data can be viewed with any text reading software. 20211013 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 Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998