Online Links:
Online Links:
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 51 |
| Value | Definition |
|---|---|
| Polyline | A shape defined by one or more paths, in which a path is a series of connected segments. |
| Range of values | |
|---|---|
| Minimum: | 101 |
| Maximum: | 231 |
| Range of values | |
|---|---|
| Minimum: | 1333.921452 |
| Maximum: | 142819.277739 |
| Units: | Meters |
Beach erosion is a persistent problem along most open-ocean shores of the United States. Along the Arctic coast of Alaska, coastal erosion is widespread and is threatens Native communities, defense and energy-related infrastructure, and coastal habitat. As coastal populations continue to expand and infrastructure and habitat are increasingly threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There also is a need for a comprehensive analysis of shoreline change with metrics that are consistent from one coastal region to another. To meet these national needs, the U.S. Geological Survey is conducting an analysis of historical shoreline changes along the open-ocean sandy shores of the conterminous United States and parts of Hawaii, Alaska, and the Great Lakes. One purpose of this work is to develop standard, repeatable methods for mapping and analyzing shoreline change so that periodic, systematic, and internally consistent updates regarding coastal erosion and land loss can be made nationally.
Online Links:
Online Links:
Online Links:
Are there legal restrictions on access or use of the data?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.
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 shoreline change rates measured along shore perpendicular transects on the northern coast of Alaska. in format Shapefile (version ArcGIS Desktop 10.6) Esri polyline shapefile Size: 0.172 |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalog/file/get/5dbb7aa1e4b06957974eda35 https://doi.org/10.5066/P9H1S1PV |
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.