{"action":"create","ckan_id":null,"date_created":"Sat, 14 Feb 2026 20:29:03 GMT","date_finished":null,"harvest_job_id":"e0f41b31-a68d-43ff-8093-27a46dae0336","harvest_source_id":"31f41541-38a0-400b-b240-10ebcb0acd9a","id":"15daa63b-7d59-4cf6-8c5c-87c75e1387f7","identifier":"https://dggs.alaska.gov/webpubs/metadata/DDS9-Emmonak.xml","parent_identifier":null,"source_hash":"64d4ec919dab9330db81bc852b329c510800b5973f45abd0fb5681d5e9cd53d1","source_raw":"\n\n\n\n\nDGGS Staff\n2015\nAlaska shoreline change tool\ndigital data\n\nDigital Data Series\nDDS 9\n\n\nFairbanks, Alaska, United States\nAlaska Division of Geological & Geophysical Surveys\n\nhttp://doi.org/10.14509/29504\nhttp://doi.org/10.14509/shoreline\n\n\n\nCoastlines are dynamic features that change shape and position on a range of timescales. As a result of this variability, many coastal communities in Alaska must carefully consider patterns of coastal erosion and/or accretion to appropriately plan for the future. Until now, a lack of available information and resources related to shoreline positional data has created challenges in assessing and planning for coastal hazards such as erosion. To address this identified data need, the Alaska Division of Geological & Geophysical Surveys (DGGS) has created the Alaska Shoreline Change Tool, an interactive map that displays historical and projected shoreline positions. This new tool will improve hazard assessments and aid in local management decisions. The Alaska Shoreline Change Tool contains the best available information for shoreline change analysis in Alaska. These data come from many sources and include contributions from shoreline mapping projects conducted by numerous investigators. This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Emmonak.\nThe shoreline positions displayed by the Alaska Shoreline Change Tool web map are presented as a convenience and are intended to be a visualization of a first-order estimation of shoreline change throughout the state. This data set was created as a means to organize and provide public access to the digitized shoreline files. Users can access the data, as well as additional metadata, from the DGGS website: http://doi.org/10.14509/29504.\n> Emmonak: This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Emmonak. Within each package are polylines that provide shoreline position data. Each file represents a digitized shoreline from a specific point in time. Files are named and organized by year.\n\n\n\n\n1950\n2017\n\n\npublication date\n\n\nplanned\nAs needed\n\n\n\n-164.701158\n-164.408893\n62.778477\n62.720916\n\n\n\n\nISO 19115 Topic Category\ngeoscientificInformation\n\n\nAlaska Division of Geological & Geophysical Surveys\nEngineering\nEngineering Geology\nEnvironmental\n\n\nThis report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).\nAny hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.\n\n\n\nAlaska Division of Geological & Geophysical Surveys\n\nMetadata Manager\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5020\n(907)451-5050\ndggspubs@alaska.gov\n8 am to 4:30 pm, Monday through Friday, except State holidays\n\n\nThe database and projected shoreline visualization tool are maintained by Staff at DGGS, and were initially developed by: Gould, A.I., Kinsman, N.E.M., and Hendricks, M.D. This shoreline dataset was funded by the Federal Emergency Management Agency's Cooperating Technical Partners Program (award EMS-2016CA-00006).\n\n\nGould, A.I.\nKinsman, N.E.M.\nHendricks, M.D.\n2015\nGuide to projected shoreline positions in the Alaska shoreline change tool\n\nMiscellaneous Publication\nMP 158\n\n\nFairbanks, Alaska, United States\nAlaska Division of Geological & Geophysical Surveys\n\n11 p\nhttp://doi.org/10.14509/29503\n\n\n\n\nOverbeck, J.R.\nKennedy, K.S.\n2018\nChannel migration study of Emmonak, Alaska\n\nReport of Investigation\nRI 2018-1\n\n\nFairbanks, Alaska, United States\nAlaska Division of Geological & Geophysical Surveys\n\nhttp://doi.org/10.14509/29858\n\n\n\n\n\nDGGS staff have performed visual qualitative assessment of each shoreline file to ensure consistency between the digitized lines and originating images.\n\nnot applicable\nGaps in shoreline data occur where a shoreline indicator is not identifiable (example: poorly defined shoreline indicator, cloud cover in imagery, etc.) or does not exist (example: tidal inlet, revetment or other coastal structure).\n\n\nHorizontal shoreline vector location uncertainties are shown in the UNCERTAINT field with each shoreline shapefile. These accuracies are dependent on a number of variables. The details of their calculation are explained in the associated publications: Gould, A.I., Kinsman, N.E.M., and Hendricks, M.D., 2015, Guide to projected shoreline positions in the Alaska shoreline change tool: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 158, 11 p. doi:10.14509/29503 and Kinsman, N.E.M., and Overbeck, J.R., and Kennedy, K.S., 2018, Channel migration study of Emmonak, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2018-1. http://doi.org/10.14509/29858\n\n\n\n\n\n\nBoak, E.H.\nTurner, I.L.\n2005\nShoreline definition and detection - A review\n\nJournal of Coastal Research\nv. 21, no. 4\n\n\nCoconut Creek, FL\nCoastal Education & Research Foundation\n\nnull\n\n\npaper\n\n\n\n2005\n\n\npublication date\n\nBoak, E.H. and Turner, I.L., 2005\nhistorical shoreline compilation\n\n\n\n\nDolan, Robert\nFenster, M.S.\nHolme, S.J.\n1991\nTemporal analysis of shoreline recession and accretion:\n\nJournal of Coastal Research\nv. 7, no. 3\n\n\nCoconut Creek, FL\nCoastal Education & Research Foundation\n\nnull\n\n\npaper\n\n\n\n1991\n\n\npublication date\n\nDolan, Robert and others, 1991\nhistorical shoreline compilation\n\n\n\n\nThieler, E.E.\nHimmelstoss, E.A.\nZichichi, J.L.\nErgul, Ayhan\n2008\nThe digital shoreline analysis system (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change\n\nOpen-File Report\nOF 2008-1278\n\n\nUnited States\nU.S. Geological Survey\n\nhttp://dggs.alaska.gov/pubs/id/29507\n\n\nArcGIS extension\n\n\n\n2008\n\n\npublication date\n\nThieler, E.E. and others, 2008\nhistorical shoreline compilation\n\n\nHistorical shoreline compilation - This database was initiated by contracting the orthorectification of aerial photographs. Far North Geospatial orthorectified aerial photographs from circa 1950's and 1980's along Alaska's western coastal region. Shorelines were then digitized in ArcGIS and used with the Digital Shoreline Analysis System (DSAS) to calculate rates of shoreline change and their associated uncertainties.\nBoak, E.H. and Turner, I.L., 2005\nDolan, Robert and others, 1991\nThieler, E.E. and others, 2008\n2016\n\n\nProjected shoreline positions - In order to create projected shoreline positions, DGGS staff developed an ArcGIS tool to efficiently determine the location of a future shoreline position. This tool uses the long-term linear regression rate of shoreline change, calculated in DSAS, and projected along the same transect to determine a predicted shoreline position including the uncertainties. These points are connected between transects and smoothed.\n2015\n\n\nDatabase development - DGGS designed a repository to house these coastal data and developed and interactive map interface that allows users to explore the state to view both historic and projected shoreline positions. The database was designed to readily incorporate shoreline data from other organizations and create projected shorelines. All historic shoreline data is available for download.\n2015\n\n\n\n\nvector\n\n\n\n\n\nUniversal Transverse Mercator\n\n3\n\n0.999600\n-165\n0\n500000.000000\n0\n\n\n\n\ncoordinate pair\n\n.00000001\n.00000001\n\nMeters\n\n\n\nNorth American Datum of 1983\nGRS 80\n6378137\n298.257222101000025\n\n\n\n\n\n\ndds9-emmonak-shoreline\nThis digital data distribution package provides digitized, historic shorelines that are proximal to the community of Emmonak. Within each package are polylines that provide shoreline position data. Each file represents a digitized shoreline from a specific point in time. Files are named and organized by year.\nAlaska Division of Geological & Geophysical Surveys (DGGS)\nEmmonak\n\n\nUNCERTAINT\nCalculated uncertainty for each polyline, see associated reference for discussion of methodology.\nOverbeck, J.R., and Kennedy, K.S., 2018, Channel migration study of Emmonak, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2018-1. http://doi.org/10.14509/29858\n\nmeters\n\n\n\nDATE_\nDate of the shoreline\nAlaska Division of Geological & Geophysical Surveys (DGGS)\n\nDates are given in MO/DA/YEAR\n\n\n\nDigitizer\nName of the person who digitized the shoreline\nAlaska Division of Geological & Geophysical Surveys (DGGS)\n\nNames are given in first name initial and then full last name (ex: A. Gould, N. Kinsman).\n\n\n\nAgency\nThe agency or organization responsible for creating the data.\nAlaska Division of Geological & Geophysical Surveys (DGGS)\n\nfree text\n\n\n\nSIndicator\nShoreline indicator used\nGould, A.I., Kinsman, N.E.M., and Hendricks, M.D., 2015, Guide to projected shoreline positions in the Alaska shoreline change tool: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 158, 11 p. doi:10.14509/29503\n\nSee associated reference for a complete discussion of the various shoreline indicators and the advantages and disadvantages of each type.\n\n\n\nReleaseDat\nWhen the vectors were added to the database\nAlaska Division of Geological & Geophysical Surveys (DGGS)\n\nDates are given as MO/YEAR\n\n\n\nSource\nThe agency or organization responsible for creating the originating data or image and a brief description of procedures used to prepare the data or image.\nAlaska Division of Geological & Geophysical Surveys (DGGS)\n\nfree text\n\n\n\n\n\n\n\n\nAlaska Division of Geological & Geophysical Surveys\n\nMetadata Manager\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5020\n(907)451-5050\ndggspubs@alaska.gov\n8 am to 4:30 pm, Monday through Friday, except State holidays\n\n\nDDS 9\nThe State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.\n\nDGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.\nContact DGGS for current pricing\n\n\n\n\nShapefiles\n\n\n\n\n\nhttp://doi.org/10.14509/29504\nhttp://doi.org/10.14509/shoreline\n\n\n\n\n\nFree download\n\n\n\n20180320\n\n\n\nAlaska Division of Geological & Geophysical Surveys\nSimone Montayne\n\nMetadata Manager\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5020\n(907)451-5050\ndggspubs@alaska.gov\n8 am to 4:30 pm, Monday through Friday, except State holidays\n\n\nFGDC Content Standard for Digital Geospatial Metadata\nFGDC-STD-001-1998\nIf the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys.\n\nhttp://www.dggs.alaska.gov/metadata/dggs.ext\ndggs metadata extensions\n\n\n\n","source_transform":null,"status":"error"}