Offshore baseline for the northern Alaska coastal region generated to calculate shoreline change rates along exposed coastlines between the Okpilak-Hulahula River Delta and the Colville River Deltas for the time period 1947 to 2007

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2015
Title:
Offshore baseline for the northern Alaska coastal region generated to calculate shoreline change rates along exposed coastlines between the Okpilak-Hulahula River Delta and the Colville River Deltas for the time period 1947 to 2007
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2015-1030
Publication_Information:
Publication_Place:
Pacific Coastal and Marine Science Center, Santa Cruz and Menlo Park, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage:
https://pubs.usgs.gov/of/2015/1030/downloads/CentralBeaufort_exposed_baselines.zip
Larger_Work_Citation:
Citation_Information:
Originator: Ann E. Gibbs
Publication_Date: 2015
Title:
National Assessment of Shoreline Change: A GIS Compilation of 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: 2015-1030
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2015/1030/
Description:
Abstract:
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 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.
Purpose:
This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for the north coast of Alaska from the U.S.-Canadian border to Icy Cape. This baseline layer serves as the starting point for all transects cast by the DSAS application. The transects intersect each shoreline and establish measurement points used to calculate shoreline-change rates.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2014
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -150.223057486
East_Bounding_Coordinate: -144.210712254
North_Bounding_Coordinate: 70.5722466211
South_Bounding_Coordinate: 69.9586883846
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: Baseline
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
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: North Slope
Place_Keyword: Beaufort Sea
Place_Keyword: Barrow
Place_Keyword: Demarcation Bay
Place_Keyword: Jago River
Place_Keyword: Staines River
Place_Keyword: Sagavanirktok River
Place_Keyword: Colville River
Place_Keyword: Cape Halkett
Place_Keyword: Harrison Bay
Place_Keyword: Drew Point
Place_Keyword: Tangent Point
Place_Keyword: Smith Bay
Place_Keyword: Elson Lagoon
Place_Keyword: Peard Bay
Place_Keyword: Alaska
Place_Keyword: Arctic National Wildlife Refuge
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: United States
Place_Keyword: Arctic
Place_Keyword: National Petroleum Reserve-Alaska
Place_Keyword: NPR-A
Place_Keyword: ANWR
Access_Constraints: None
Use_Constraints:
This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. Acknowledge the U.S. Geological Survey in products derived from these data. Share data products developed using these data with the U.S. Geological Survey. This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Ann E. Gibbs
Contact_Address:
Address_Type: mailing and physical address
Address: Pacific Coastal and Marine Science Center
Address: 400 Natural Bridges Dr.
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
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: 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: 2015-1030
Publication_Information:
Publication_Place: Santa Cruz, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://pubs.usgs.gov/of/2015/1030/
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: Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: Current version at time of use was 4.3
Online_Linkage: https://pubs.usgs.gov/of/2008/1278/
Online_Linkage:
http://woodshole.er.usgs.gov/project-pages/dsas/version4/
Online_Linkage: http://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 (USGS Open-File Report 2008-1278). 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 along sections of the north coast of Alaska, between the U.S.-Canadian border and Icy Cape, 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. 10.1 The baselines were positioned to conform to changes in the combined orientation of the shorelines alongshore. This was done so that the 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: 2013
Process_Step:
Process_Description:
The baseline feature class was exported from a personal geodatabase to a shapefile in ArcCatalog (v.10.1) by performing a right-mouse click on the data layer > export > to shapefile (single).
Process_Date: 20141018
Process_Step:
Process_Description:
The baseline shapefile was projected in Esri's ArcToolbox (v.10.1) > 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: 20131218
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: 32
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0196106528
Longitude_Resolution: 0.0558163666
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: 32
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
Contact_Person: Ann E. Gibbs
Contact_Address:
Address_Type: mailing and physical address
Address: Pacific Coastal and Marine Science Center
Address: 400 Natural Bridges Dr.
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: CA
Contact_Voice_Telephone: 831-460-7540
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: agibbs@usgs.gov
Resource_Description: CentralBeaufort_exposed_baselines.shp
Distribution_Liability:
This information is not intended for navigational purposes. This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: vector digital data
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 Alaska North Coast region from the U.S.-Canadian border to Icy Cape and associated metadata.
File_Decompression_Technique: Use WinZip or pkUnzip
Transfer_Size: 0.023
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://pubs.usgs.gov/of/2015/1030/downloads/CentralBeaufort_exposed_baselines.zip
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: 20141125
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ann E. Gibbs
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Pacific Coastal and Marine Science Center
Address: 400 Natural Bridges Dr.
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: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.32 on Thu Jul 9 11:58:26 2015