5836fb0d-3d67-43fd-bc11-a466d909d65c_source eng; USA utf8 dataset Simone Montayne 907-451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact 2021-03-02 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Shoreline change at Alaska coastal communities, Teller, Alaska 2020-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Overbeck, J.R. originator Buzard, R.M. originator Turner, M.M. originator Miller, K.Y. originator Glenn, R.J. originator https://doi.org/10.14509/30552 REPORT, GEODATABASE Report of Investigation RI 2020-10 29 p., 47 sheets The Division of Geological & Geophysical Surveys has analyzed long-term shoreline change at 48 Alaska communities. Shoreline datasets were compiled from previously published U.S. Geological Survey assessments and created from historical and recent aerial images by the Alaska Division of Geological & Geophysical Surveys. Shorelines were analyzed to calculate shoreline change rates every 25 meters along coastlines and tidally influenced riverbanks using the Digital Shoreline Analysis System (DSAS; Himmelstoss and others, 2018). The geodatabase for each community includes shoreline positions, the alongshore baseline used to cast transects, and transects that include shoreline change rates and statistics. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30552). Many of Alaska's coastal communities are vulnerable to erosion, flooding, and permafrost degradation. However, there are few vulnerability assessment tools available to the public that are complete or that utilize transparent, consistent, and quantitative methods at a scale needed for local planning. This work is an effort to provide numerical shoreline change data to Alaskans for local decision-making and erosion vulnerability assessments. This work was funded by FEMA, the State of Alaska, the Denali Commission, and the U.S. Bureau of Indian Affairs. Data were produced by the Alaska Division of Geological & Geophysical Surveys, the U.S. Geological Survey, and the UAF Arctic Coastal Geoscience Lab. completed Alaska Division of Geological & Geophysical Surveys GIS Manager 907-451-5020 3354 College Rd Fairbanks AK 99709-3707 USA dggsgis@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact notPlanned Aerial Aerial Photography Coastal DGGS Emergency Preparedness Engineering Environmental Erosion Flood Floodplain Geology Hazards Inundation Marine Geology Outreach Sea Level Changes Shelf Shoreface Storm Surge Surface Tides Topography Water theme Alaska Division of Geological & Geophysical Surveys Alaska Teller place Alaska Division of Geological & Geophysical Surveys The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services 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, any failure thereof, or otherwise, and 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. otherRestrictions Use Constraints: Any 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. otherRestrictions Access Constraints: This 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). Photogrammetric digital surface models and orthoimagery for 26 coastal communities of western Alaska 2016-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Overbeck, J.R. originator Hendricks, M.D. originator Kinsman, N.E.M. originator https://doi.org/10.14509/29548 Raw Data File RDF 2016-1 3 p crossReference vector eng; USA geoscientificInformation -166.440332 -166.280496 65.238433 65.274243 2020-01-01 >Baseline: The Baseline line file gives the location of the alongshore baseline used to cast transects. >Rates: Shoreline change is measured at regular intervals along the coast at transects that are cast orthogonal to shorelines from a baseline. Each method used to calculate shoreline change rates is based on measured differences between shoreline positions through time. The reported rates are expressed as meters of change along transects per year. When the user-selected rate-change calculations are processed, DSAS merges the individual module calculations, and the output is made available as a table in ArcMap. The rate-change statistics provided with DSAS have the standardized field headings. Some of the shoreline statistic values listed below require greater than 3 shoreline positions to calculate the statistic. If the shoreline statistic is a null value, there were not enough shorelines analyzed to compute that statistic. >Shorelines: Shoreline positions are a representation of a linear shoreline feature at a given point in time. These data were visually interpreted from historical and current orthorectified aerial photographs and delineated using ArcGIS. true report and geodatabase unknown Simone Montayne State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 907-451-5020 907-451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. distributor see http://dx.doi.org/10.14509/30552 Free download http://dx.doi.org/10.14509/30552 report and geodatabase vector data information dataset Horizontal Positional Accuracy Report Shoreline positions are a representation of a linear shoreline feature at a given point in time. These data were visually interpreted from historical and current orthorectified aerial imagery and delineated in ArcGIS. Several factors have the potential to introduce positional uncertainty in the measured or interpreted results. These factors include horizontal uncertainty of the source imagery or ground control and the orthorectified image, spatial uncertainty associated with the imagery's spatial resolution, and uncertainty due to shoreline indicator interpretation during the digitization process. The accompanying delivery report provides additional information about the procedures used to determine uncertainty values for shoreline positions. Gaps in shoreline data and transect data may occur due to gaps in orthoimagery data, location and extent of coastal river channels or lakes, and infrastructure impeding the shoreline such as docks, revetments, and roadways. Gaps in shoreline data and transect data may occur due to gaps in orthoimagery data, location and extent of coastal river channels or lakes, and infrastructure impeding the shoreline such as docks, revetments, and roadways. Not applicable. This lineage was generated by the FGDC CSDGM to 19139 transformation Historical shoreline compilation - Shoreline positions are compiled from previously published U.S. Geological Survey assessments as well as delineated from orthorectified historical and modern aerial imagery. The agency or organization that produced the imagery and shoreline vector are noted in the Shorelines data table. 2020-01-01T00:00:00 Projected shoreline positions - Shoreline change is measured at 25-meter alongshore transects that are cast orthogonal to shorelines from an offshore baseline. At each transect, DSAS marks the shoreline intersection position and measures the distance between shorelines through time to compute statistical rates of change. 2020-01-01T00:00:00 Source Contribution: historical shoreline compilationSource Type: paper Shoreline definition and detection - A review 2005-01-01 publication Coastal Education & Research Foundation Coconut Creek FL publisher Boak, E.H. originator Turner, I.L. originator null Journal of Coastal Research v. 21, no. 4 2005-01-01 Source Contribution: historical shoreline compilationSource Type: paper Temporal analysis of shoreline recession and accretion: 1991-01-01 publication Coastal Education & Research Foundation Coconut Creek FL publisher Dolan, Robert originator Fenster, M.S. originator Holme, S.J. originator null Journal of Coastal Research v. 7, no. 3 1991-01-01 Source Contribution: historical shoreline compilationSource Type: ArcGIS extension Digital Shoreline Analysis System (DSAS) Version 5.0 User Guide 2018-01-01 publication U.S. Geological Survey United States publisher Himmelstoss, E.A. originator Farris, A.S. originator Henderson, R.E. originator Kratzmann, M.G. originator Ergul, Ayhan originator Zhang, Ouya originator Zichichi, J.L. originator Thieler, E.R. originator https://dggs.alaska.gov/pubs/id/30649 Open-File Report OF 2018-1179 110 p 2018-01-01 otherRestrictions Metadata Use Constraints: If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Simone Montayne 907-451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact