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Minimum: | 0 |
Maximum: | unlimited |
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Minimum: | 2 |
Maximum: | 3957 |
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Maximum: | 360 |
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Minimum: | 0.58 |
Maximum: | 745.07 |
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Minimum: | -274.64 |
Maximum: | 645.57 |
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Minimum: | 29.084729 |
Maximum: | 792.47129 |
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Minimum: | -2.25 |
Maximum: | 4.23 |
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Maximum: | 1 |
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Minimum: | 0 |
Maximum: | 231.87 |
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Maximum: | 9.67 |
This dataset consists of long-term (100+ years) linear regression shoreline change rates for the North Shore region of Massachusetts. Rates of long-term shoreline change were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. The baseline is used as a reference line for the transects cast by the DSAS software. The transects intersect each shoreline at the measurement points, which are then used to calculate a linear regression rate for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Long-term linear regression statistics were calculated with all of the historical shorelines compiled for the Massachusetts Office of Coastal Zone Management Shoreline Change Project.
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Are there legal restrictions on access or use of the data?Access_Constraints: None
Use_Constraints:These data were automatically generated using the DSAS versions 4.2 (transects) and 4.3 (rates) software applications and should only be used for purposes explicitly stated by the originating organization. Please recognize the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management as the originators of this dataset.
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Data format: | This WinZip (version 14) file contains a shapefile of transects generated by the Digital Shoreline Analysis System including long-term linear regression rate calculations for the North Shore region of Massachusetts. Metadata is also included. in format Shapefile (version ArcGIS 10) Esri polyline shapefile Size: 1 |
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Network links: |
https://pubs.usgs.gov/of/2012/1183/data/NorthShore/NorthShore_transects_rates_LTw.zip |
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.