Digitized Shoreline from Approximately 1950, 1980, and 2003 for the Coastal Areas of Bering Land Bridge NP (BELA) and Cape Krusenstern NM (CAKR), Northwest Alaska

Metadata Updated: May 17, 2013

This file geodatabase contains the digitized shorelines for Cape Krusenstern from approximately 1950, 1980, and 2003 as feature classes. Each feature class contains detailed pertinent metadata. The following information pertains to the 1980 feature class. This shoreline reference feature is defined as the waterline and was digitized onscreen from orthorectified aerial photography from approximately 1980 for the coastal areas of Bering Land Bridge National Preserve (BELA), Cape Krusenstern National Monument (CAKR), and nearby portions of northwestern Alaska. The aerial photography frames are derived from 1:64,000-scale, color-infrared (CIR) photographs acquired by the USGS and NOAA from 1978 to 1985. These images and the companion shoreline were completed as part of a study on coastal erosion in collaboration between the University of Colorado (Institute of Arctic and Alpine Research) and the National Park Service (Arctic Network Inventory and Monitoring Program). The shoreline has a total length of approximately 480 km. Shoreline error was calculated using the square root of the sum of the squares (SRSS) calculation of the orthorectification and digitization errors. Errors for the approximately 1980s shorelines are 2.8 m for BELA and 2.2 m for CAKR. The shoreline is available in ArcGIS geodatabase format. It has a UTM zone 3 projection and NAD83 datum, with FGDC-compliant metadata. Attribute information in the feature class table includes, frame number, acquisition date, comments, and line length. The geodatabase is available through an unrestricted public license, and can be obtained online by request (see Distributor contact information below). Other data available in this series includes Bluff-Top coastlines and Digital Shoreline Analysis System (DSAS) files. Together, the data will be of interest to land managers, scientists, and others for observation and analysis of natural features and ecosystems.

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Metadata Date November 17, 2010
Metadata Created Date March 15, 2013
Metadata Updated Date May 17, 2013
Reference Date(s) December 1, 2010 (publication)
Frequency Of Update notPlanned

Additional Metadata

Resource Type Dataset
Metadata Date November 17, 2010
Metadata Created Date March 15, 2013
Metadata Updated Date May 17, 2013
Reference Date(s) December 1, 2010 (publication)
Responsible Party University of Colorado, Institute of Arctic Research and Alpine Research (INSTAAR) (Point of Contact)
Contact Email
Access Constraints Use Constraints: Dataset credit required. All dataset products are not the reponsibility of the National Park Service. Use at your own risk. Users assume responsibility to determine the usability of the dataset, as well as dataset resolution and accuracy, for their purposes. It is not recommended that the data be used at a scale larger than source scale., Access Constraints: None
Bbox East Long -162.0
Bbox North Lat 68.0
Bbox South Lat 65.5
Bbox West Long -168.5
Coupled Resource
Frequency Of Update notPlanned
Licence The National Park Service (NPS) shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (i.e. GIF or JPG format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an NPS server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on computer systems at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on other systems for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Temporal Extent Begin 1978-06-25
Temporal Extent End 1985-08-03

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