Identification_Information: Citation: Citation_Information: Originator: DGGS Staff Publication_Date: 2015 Title: Alaska shoreline change tool Geospatial_Data_Presentation_Form: digital data Series_Information: Series_Name: Digital Data Series Issue_Identification: DDS 9 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Online_Linkage: http://dx.doi.org/10.14509/29504 Online_Linkage: http://dx.doi.org/10.14509/shoreline Description: Abstract: Coastlines 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 Port Heiden Purpose: The 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. Supplemental_Information: > Port Heiden: This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Port Heiden. 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. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1957 Ending_Date: 2013 Currentness_Reference: publication date Status: Progress: planned Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -158.694530 East_Bounding_Coordinate: -158.675001 North_Bounding_Coordinate: 56.941398 South_Bounding_Coordinate: 56.887814 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation 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). 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: GIS Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Electronic_Mail_Address: dggsgis@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: The 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 publication was funded with qualified outer continental shelf oil and gas revenues by the Coastal Impact Assistance Program, U.S. Fish & Wildlife Service, U.S. Department of the Interior. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Government. Special thanks to the USGS Pacific Coastal and Marine Science Center for their insight and initial contributions to the Alaska shoreline change database. Cross_Reference: Citation_Information: Originator: Gould, A.I. Originator: Kinsman, N.E.M. Originator: Hendricks, M.D. Publication_Date: 2015 Title: Guide to projected shoreline positions in the Alaska shoreline change tool Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 158 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 11 p Online_Linkage: http://dx.doi.org/10.14509/29503 Cross_Reference: Citation_Information: Originator: Kinsman, N.E.M. Originator: Gould, A.I. Publication_Date: 2014 Title: Contemporary shoreline retreat rates at Meshik in Port Heiden, Alaska Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2014-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 21 p Online_Linkage: http://dx.doi.org/10.14509/27321 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: DGGS staff have performed visual qualitative assessment of each shoreline file to ensure consistency between the digitized lines and originating images. Logical_Consistency_Report: not applicable Completeness_Report: Gaps 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). Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal 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 Gould, A.I., 2014, Contemporary shoreline retreat rates at Meshik in Port Heiden, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2014-4, 21 p. doi:10.14509/27321 Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Boak, E.H. Originator: Turner, I.L. Publication_Date: 2005 Title: Shoreline definition and detection - A review Series_Information: Series_Name: Journal of Coastal Research Issue_Identification: v. 21, no. 4 Publication_Information: Publication_Place: Coconut Creek, FL Publisher: Coastal Education & Research Foundation Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Boak, E.H. and Turner, I.L., 2005 Source_Contribution: historical shoreline compilation Source_Information: Source_Citation: Citation_Information: Originator: Dolan, Robert Originator: Fenster, M.S Originator: Holme, S.J Publication_Date: 1991 Title: Temporal analysis of shoreline recession and accretion: Series_Information: Series_Name: Journal of Coastal Research Issue_Identification: v. 7, no. 3 Publication_Information: Publication_Place: Coconut Creek, FL Publisher: Coastal Education & Research Foundation Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1991 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Dolan, Robert and others, 1991 Source_Contribution: historical shoreline compilation Source_Information: Source_Citation: Citation_Information: Originator: Thieler, E.E. Originator: Himmelstoss, E.A. Originator: Zichichi, J.L. Originator: Ergul, Ayhan Publication_Date: 2008 Title: The digital shoreline analysis system (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2008-1278 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Online_Linkage: http://dggs.alaska.gov/pubs/id/29507 Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version4/ Type_of_Source_Media: ArcGIS extension Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Thieler, E.E. and others, 2008 Source_Contribution: historical shoreline compilation Process_Step: Process_Description: Historical shoreline compilation - This database was initiated by first collecting historical aerial photographs and satellite images. Non-orthorectified images were orthorectified by the Alaska Division of Geological & Geophysical Surveys (DGGS) staff. Shorelines were then digitized in ArcGIS and used with the Digital Shoreline Assessment System (DSAS) to calculate rates of shoreline change and their associated uncertainties. Source_Used_Citation_Abbreviation: Boak, E.H. and Turner, I.L., 2005 Source_Used_Citation_Abbreviation: Dolan, Robert and others, 1991 Source_Used_Citation_Abbreviation: Thieler, E.E. and others, 2008 Process_Date: 2014 Process_Step: Process_Description: Projected 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. Process_Date: 2015 Process_Step: Process_Description: Database 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. Process_Date: 2015 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 4 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -159 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: .00000001 Ordinate_Resolution: .00000001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: dds9-port-heiden-shoreline Entity_Type_Definition: This digital data distribution package provides digitized, historic shorelines that are proximal to the community of Port Heiden. 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. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Entity_Attribute_Layer_Name: Port Heiden Attribute: Attribute_Label: UNCERTAINT Attribute_Definition: Calculated uncertainty for each polyline, see associated reference for discussion of methodology. Attribute_Definition_Source: Kinsman, N.E.M., and Gould, A.I., 2014, Contemporary shoreline retreat rates at Meshik in Port Heiden, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2014-4, 21 p. doi:10.14509/27321 Attribute_Domain_Values: Unrepresentable_Domain: meters Attribute: Attribute_Label: DATE_ Attribute_Definition: Date of the shoreline Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Attribute_Domain_Values: Unrepresentable_Domain: Dates are given in MO/DA/YEAR Attribute: Attribute_Label: Digitizer Attribute_Definition: Name of the person who digitized the shoreline Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Attribute_Domain_Values: Unrepresentable_Domain: Names are given in first name initial and then full last name (ex: A. Gould, N. Kinsman). Attribute: Attribute_Label: Agency Attribute_Definition: The agency or organization responsible for creating the data. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Attribute_Domain_Values: Unrepresentable_Domain: free text Attribute: Attribute_Label: SIndicator Attribute_Definition: Shoreline indicator used Attribute_Definition_Source: 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 Attribute_Domain_Values: Unrepresentable_Domain: See associated reference for a complete discussion of the various shoreline indicators and the advantages and disadvantages of each type. Attribute: Attribute_Label: ReleaseDat Attribute_Definition: When the vectors were added to the database Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Attribute_Domain_Values: Unrepresentable_Domain: Dates are given as MO/YEAR Attribute: Attribute_Label: Source Attribute_Definition: The agency or organization responsible for creating the originating data or image and a brief description of procedures used to prepare the data or image. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys (DGGS) Attribute_Domain_Values: Unrepresentable_Domain: free text Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: 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. Resource_Description: DDS 9 Distribution_Liability: The 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. Standard_Order_Process: Non-digital_Form: DGGS 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. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefiles Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.14509/29504 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20150904 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: If 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. Metadata_Extensions: Online_Linkage: http://www.dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions