|Range of values|
|Range of values|
|Gully fill||An arbitrarily drawn line segment connecting two points that approximates a continuous bluff edge at locations where a gully incises landward into the bluff.|
|Top of bluff||Top edge of coastal bluff|
|AHAP, Color infrared photography||Alaska High-altitude Aerial Photography, color infrared photographs|
|CORONA, Panchromatic satellite photography||Declassified CORONA satellite, panchromatic photography|
|Fairbanks Fodar, Natural color aerial photography||Orthorectified, natural color aerial photo mosaics generated by Fairbanks Fodar using Structure from Motion (SfM)photogrammetry|
|Hexagon, Panchromatic satellite photography||Declassified Hexagon satellite, panchromatic photography|
|Maxar IKONOS, Panchromatic satellite imagery||Maxar IKONOS satellite, panchromatic imagery|
|Maxar Quickbird, Panchromatic satellite imagery||Maxar Quickbird satellite, panchromatic imagery|
|Maxar WV01, Panchromatic satellite imagery||Maxar Worldview 1 satellite, panchromatic imagery|
|Maxar WV02, Panchromatic satellite imagery||Maxar Worldview 2 satellite, panchromatic imagery|
|Maxar WV02, Pansharpened multispectral satellite *||Maxar Worldview 2 satellite, pansharpened multispectral satellite imagery|
|Maxar WV02, Pansharpened natural color satellite imagery||Maxar Worldview 2 satellite, pansharpened natural color satellite imagery|
|USGS, Panchromatic aerial photography||USGS, panchromatic single frame aerial photography|
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.
Are there legal restrictions on access or use of the data?
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.
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.
|Data format:||Zip file contains digitized bluff edge position representing the top edge of the coastal bluff at Barter Island, Alaska. in format Vector Digital Data Set (Polyline) (version ArcGIS Desktop 10.7) Esri polyline shapefile Size: 0.5|
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.