Metadata: Identification_Information: Citation: Citation_Information: Originator: Ann E. Gibbs Publication_Date: 20201204 Title: Offshore baseline generated to calculate shoreline change rates near Barter Island, Alaska Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polyline) Series_Information: Series_Name: data release Issue_Identification: DOI: 10.5066/P9CRBC5I Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9CRBC5I Online_Linkage: https://www.sciencebase.gov/catalog/item/5fadfcecd34eb413d5df4869 Larger_Work_Citation: Citation_Information: Originator: Ann E. Gibbs Originator: Benjamin M. Jones Originator: Bruce M. Richmond Publication_Date: 20201201 Title: A GIS compilation of vector shorelines and coastal bluff edge positions, and associated rate-of-change data for Barter Island, Alaska Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9CRBC5I Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9CRBC5I Description: Abstract: This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for the shorelines near Barter Island, Alaska for the time period 1947 to 2020. 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: These data are part of a series of data quantifying rates and patterns of shoreline change and coastal permafrost bluff retreat from 1947 to 2020 at Barter Island. Alaska. 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 dataset 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: 2020 Currentness_Reference: publication year Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -143.707308049 East_Bounding_Coordinate: -143.621130612 North_Bounding_Coordinate: 70.13619585 South_Bounding_Coordinate: 70.133659772 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Physical habitats and geomorphology Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: shoreline accretion Theme_Keyword: coastal erosion Theme_Keyword: permafrost Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: coastal processes Theme_Keyword: geomorphology Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: Digital Shoreline Analysis System Theme_Keyword: DSAS Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5fadfcecd34eb413d5df4869 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: North Slope Place_Keyword: Arctic National Wildlife Refuge Place_Keyword: Arctic Ocean Place_Keyword: Barter Island Place_Keyword: North Slope Place_Keyword: State of Alaska 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_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: Mailing and Physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft [Unknown] Version 6.2 (Build 9200); Esri ArcGIS 10.7.1 (Build 11595) Service Pack N/A (Build N/A) 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 Other_Citation_Details: Gibbs, A.E., and Richmond, B.M., 2015, National assessment of shoreline change—Historical shoreline change along the north coast of Alaska, U.S.–Canadian border to Icy Cape: U.S. Geological Survey Open-File Report 2015–1048, 96 p. Online_Linkage: https://doi.org/10.3133/ofr20151048 Cross_Reference: Citation_Information: Originator: Emily A. Himmelstoss Originator: Rachel E. Henderson Originator: Meridith G. Kratzmann Originator: Amy S. Farris Publication_Date: 2018 Title: Digital Shoreline Analysis System (DSAS) version 5.0 user guide Other_Citation_Details: Himmelstoss, E.A., Henderson, R.E., Kratzmann, M.G., and Farris, A.S., 2018, Digital Shoreline Analysis System (DSAS) version 5.0 user guide: U.S. Geological Survey Open-File Report 2018–1179. Online_Linkage: https://doi.org/10.3133/ofr20181179 Cross_Reference: Citation_Information: Originator: Ann E. Gibbs Originator: Matt Nolan Originator: Bruce M. Richmond Originator: Alexander G. Snyder Originator: Li H. Erikson Publication_Date: 2019 Title: Assessing patterns of annual change to permafrost bluffs along the North Slope coast of Alaska using high-resolution imagery and elevation models Other_Citation_Details: Gibbs, A.E., Nolan, M., Richmond, B.M., Snyder, A.G., Erikson, L.H., 2019, Assessing patterns of annual change to permafrost bluffs along the North Slope coast of Alaska using high-resolution imagery and elevation models. Geomorphology, v. 336, p. 152-164. Online_Linkage: https://doi.org/10.1016/j.geomorph.2019.03.029 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 (Himmelstoss and others, 2018). 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 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: 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. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Ann E. Gibbs Publication_Date: 2020 Title: Historical shoreline positions at Barter Island, Alaska for the years spanning 1947 to 2020 Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polyline) Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9CRBC5I Type_of_Source_Media: Digital and/or Hardcopy Resources Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19470729 Ending_Date: 20200710 Source_Currentness_Reference: ground condition at time data were collected. Source_Citation_Abbreviation: Historical shoreline positions Source_Contribution: Historical shoreline positions were used to constrain the offshore position of the baseline. Process_Step: Process_Description: A baseline was generated by creating a shore-parallel vector north of the northernmost historical shoreline position using standard editing tools in Esri ArcMap v. 10.7. The baseline was positioned to conform to changes in the orientation of the historical shoreline position also included in this data release. This was done so that transects, which are generated from the baseline, would intersect perpendicular to the general trend of the shoreline. Process_Date: 2020 Process_Step: Process_Description: The baseline feature class was exported to a shapefile in ArcMap v 10.7 by right-clicking the baseline layer. Process_Date: 2020 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: 4 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 7 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -141.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.6096 Ordinate_Resolution: 0.6096 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D_North_American_1983 Ellipsoid_Name: GRS_1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 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: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 4 Attribute: Attribute_Label: DSAS_searc Attribute_Definition: Baseline search distance in meters Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 500 Range_Domain_Maximum: 800 Attribute: Attribute_Label: Shape_Leng Attribute_Definition: Length of baseline in meters Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1255.014455 Range_Domain_Maximum: 8954.114687 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 were 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 - ScienceBase Contact_Address: Address_Type: Mailing and Physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available in shapefile format contained in a single zip file, which also includes CSDGM FGDC-compliant metadata. 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: ArcGIS Desktop 10.7 Format_Specification: Esri polyline shapefile Format_Information_Content: Zip file contains baseline shapefile used to construct DSAS transects for the shoreline at Barter Island, Alaska. File_Decompression_Technique: Use WinZip or equivalent. Transfer_Size: 0.01 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5fadfcecd34eb413d5df4869 Network_Resource_Name: https://doi.org/10.5066/P9CRBC5I Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page for the entire data release. 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: 20201204 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: Mailing and Physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998