Metadata: Identification_Information: Citation: Citation_Information: Originator: Gibbs, Ann E. Originator: Ohman, Karin A. Originator: Coppersmith, Ryan Originator: Richmond, Bruce M. Publication_Date: 2017 Title: Offshore baseline for the exposed West Beaufort Sea, Alaska coastal region (Colville River to Point Barrow) generated to calculate shoreline change rates Geospatial_Data_Presentation_Form: vector digital data (polyline) Series_Information: Series_Name: data release Issue_Identification: 10.5066/F72Z13N1 Publication_Information: Publication_Place: U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz and Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F72Z13N1 Online_Linkage: https://www.sciencebase.gov/catalog/file/get/5943186ee4b062508e309c61 Larger_Work_Citation: Citation_Information: Originator: Gibbs, Ann E. Originator: Ohman, Karin A. Originator: Coppersmith, Ryan Originator: Richmond, Bruce M. Publication_Date: 2017 Title: National Assessment of Shoreline Change: A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the North Coast of Alaska, U.S. Canadian Border to Icy Cape Series_Information: Series_Name: data release Issue_Identification: 10.5066/F72Z13N1 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F72Z13N1 Description: Abstract: This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for the exposed north coast of Alaska coastal region between the Colville River and Point Barrow for the time period 1947 to 2012. This baseline layer serves as the starting point for all transects cast by the DSAS application and can be used to establish measurement points used to calculate shoreline-change rates. Purpose: The Arctic Coastal Plain of northern Alaska is an area of strategic economic importance to the United States, is home to remote Native American communities, and encompasses unique habitats of global significance. Coastal erosion along the north coast of Alaska is chronic, widespread, may be accelerating, and is threatening defense and energy-related infrastructure, natural shoreline habitats, and Native Alaskan communities. There is an increased demand for accurate information regarding past and present shoreline changes across the United States. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner. Supplemental_Information: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2017 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -156.478282888 East_Bounding_Coordinate: -151.366969269 North_Bounding_Coordinate: 71.3906174804 South_Bounding_Coordinate: 70.4142760035 Description_of_Geographic_Extent: North coast of Alaska between the Colville River Delta and Point Barrow Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5943186ee4b062508e309c61 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Baseline Theme_Keyword: Shoreline Theme_Keyword: Shoreline Change Theme_Keyword: Digital Shoreline Analysis System Theme_Keyword: DSAS Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: National Assessment of Shoreline Change Project Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: coastal processes Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Habitat Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: shoreline accretion Theme_Keyword: shoreline erosion Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: North Slope Place_Keyword: Beaufort Sea Place_Keyword: Point Barrow Place_Keyword: Colville River Place_Keyword: Cape Halkett Place_Keyword: Harrison Bay Place_Keyword: Drew Point Place_Keyword: Smith Bay Place_Keyword: Elson Lagoon Place_Keyword: Dease Inlet Place_Keyword: State of Alaska Place_Keyword: United States of America Place: Place_Keyword_Thesaurus: None Place_Keyword: Arctic Place_Keyword: National Petroleum Reserve-Alaska Place_Keyword: NPR-A Place_Keyword: ANWR Access_Constraints: None Use_Constraints: 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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ann E. Gibbs Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: USA Contact_Voice_Telephone: 831-460-7540 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: agibbs@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: WestBeaufortExtent.jpg Browse_Graphic_File_Description: Map of the West Beaufort subregion of the north coast of Alaska shoreline change assessment area. Browse_Graphic_File_Type: JPEG Data_Set_Credit: U.S. Geological Survey Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.1 (Build 3035) Service Pack 1 (Build 3143) Cross_Reference: Citation_Information: Originator: Gibbs, A.E. Originator: Richmond B.M. Publication_Date: 2017 Title: National Assessment of Shoreline Change: Summary Statistics for Updated Vector Shorelines and Associated Shoreline Change Data for the North Coast of Alaska, U.S.--Canadian Border to Icy Cape Series_Information: Series_Name: Open-File Report Issue_Identification: 2017-1107 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20171107 Cross_Reference: Citation_Information: Originator: Ann E. Gibbs Originator: Bruce M. Richmond Publication_Date: 2015 Title: National Assessment of Shoreline Change--Historical Shoreline Change along the North Coast of Alaska, U.S.--Canadian Border to Icy Cape Series_Information: Series_Name: Open-File Report Issue_Identification: 2015-1048 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://dx.doi.org/10.3133/ofr20151048 Cross_Reference: Citation_Information: Originator: E.R. Thieler Originator: E.A. Himmelstoss Originator: J.L. Zichichi Originator: A. Ergul Publication_Date: 2009 Title: Digital Shoreline Analysis System (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1278 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Current version at time of use was 4.3 Online_Linkage: https://woodshole.er.usgs.gov/project-pages/DSAS/version4/index.html Online_Linkage: https://woodshole.er.usgs.gov/project-pages/DSAS/ Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The attribute in this layer is based on the requirements for use within the Digital Shoreline Analysis System (DSAS) software (Theiler and others, 2009). The data have been quality checked. Logical_Consistency_Report: All polylines have a unique identification attribute (ID). This field is used by the Digital Shoreline Analysis System (DSAS) to designate the alongshore order of baselines if there are more than one. Adjacent baseline segments do not overlap and are not necessarily continuous. Completeness_Report: This baseline file is complete and contains all baseline segments used to cast transects where shoreline data are present to calculate a rate of change. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The baseline serves as a reference point for transects cast by the Digital Shoreline Analysis System (DSAS) software. It does not correspond to any real-world feature. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Lineage: Process_Step: Process_Description: Baselines were constructed offshore from the time series of shoreline positions using standard editing tools in Esri ArcMap v. 10.3 The baselines were positioned to conform to changes in the orientation of the historical shorelines also presented in this data release. This was done so that transects, which are generated by the Digital Shoreline Analysis System v 4.3 from the baseline, would intersect perpendicular to the general trend of the shorelines. Process_Date: 2016 Process_Step: Process_Description: The baseline feature class was exported from a personal geodatabase to a shapefile in ArcCatalog (v.10.3) by performing a right-mouse click on the data layer > export > to shapefile (single). Process_Date: 2016 Process_Step: Process_Description: The baseline shapefile was projected in Esri's ArcToolbox (v.10.3) > Data Management Tools > Projections and Transformations > Feature > Project. Parameters: input projection - UTM zone XN (NAD83; where X is the corresponding UTM Zone); output projection- geographic coordinates (WGS 84) using the Geographic Transformation WGS_1984_(ITRF00)_To_NAD_1983. Process_Date: 2016 Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 42 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0196070905 Longitude_Resolution: 0.0579815482 Geographic_Coordinate_Units: Decimal seconds Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute Table Entity_Type_Definition: Table containing attribute information associated with the data set. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: ID Attribute_Definition: Field required by the Digital Shoreline Analysis System (DSAS) software. DSAS uses this value to determine the ordering sequence of transects when the baseline feature contains multiple segments. Individual segments are numbered sequentially alongshore. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 42 Overview_Description: Entity_and_Attribute_Overview: The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. Entity_and_Attribute_Detail_Citation: The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - Science Base Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: CA Contact_Voice_Telephone: 888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: WestBeaufort_baseline_exposed.shp Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Vector Digital Data Set (Polyline) Format_Version_Number: 9.0 Format_Specification: Esri polyline shapefile Format_Information_Content: This WinZip file contains the baseline shapefile for use generating transects within the Digital Shoreline Analysis System for the West Beaufort Sea coast of Alaska and associated metadata. File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 0.025 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5943186ee4b062508e309c61 Network_Resource_Name: https://doi.org/10.5066/F72Z13N1 Access_Instructions: Data are downloadable via the World Wide Web (WWW). Fees: None Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (Esri) polyline shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20201019 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ann E. Gibbs Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: USA Contact_Voice_Telephone: 831-460-7540 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: agibbs@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time