Skip to main content

Intersects for the coastal region of South Carolina generated to calculate long-term shoreline change rates using the Digital Shoreline Analysis System version 5.1

Dates

Publication Date
Start Date
1852
End Date
2018

Citation

Bartlett, M.K., Farris, A.S., and Weber, K.M., 2023, USGS National Shoreline Change - A GIS compilation of new lidar-derived shorelines (2010, 2017, and 2018) and associated shoreline change data for coastal South Carolina: U.S. Geological Survey data release, https://doi.org/10.5066/P9LLAZYE.

Summary

The U.S. Geological Survey (USGS) has compiled national shoreline data for more than 20 years to document coastal change and serve the needs of research, management, and the public. Maintaining a record of historical shoreline positions is an effective method to monitor national shoreline evolution over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers and planners understand which areas of the coast are vulnerable to change. This data release includes two new mean high water (MHW) shorelines extracted from lidar data collected in 2010 and 2017-2018. Previously published historical shorelines for South Carolina (Kratzmann and others, 2017) were combined with [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

SC_intersects_LT_browse.JPG
“Example of long-term SC intersects ”
thumbnail 148.97 KB image/jpeg
Shapefile: SC_intersects_LT.zip
SC_intersects_LT.cpg
“SC long-term intersects”
5 Bytes
SC_intersects_LT.dbf
“SC long-term intersects”
8.59 MB
SC_intersects_LT.prj
“SC long-term intersects”
402 Bytes
SC_intersects_LT.sbn
“SC long-term intersects”
397.37 KB
SC_intersects_LT.sbx
“SC long-term intersects”
4.4 KB
SC_intersects_LT.shp
“SC long-term intersects”
1.12 MB
SC_intersects_LT.shx
“SC long-term intersects”
329.07 KB

Purpose

This dataset consists of point data created by the Digital Shoreline Analysis System (DSAS) v5.1 at the intersection of shoreline and transect locations. Measurement transects are cast by DSAS from the baseline to intersect shoreline vectors, and the intersect data provide location and time information used to calculate rates of change. These point data contain identification information related to the DSAS transect (TransOrder) as well as the shoreline (ShorelineID and Uncertainty) and proxy-datum bias data (if applicable). They can be used to visually display which shorelines were used in the rate calculations and capture details on the shoreline represented by the intersection. The distances between the reference baseline and each shoreline intersection along a transect are used by the DSAS software to compute the shoreline change metrics.

Additional Information

Shapefile Extension

boundingBox
minY32.0557460435945
minX-80.87647793280173
maxY33.878162438843134
maxX-78.55297828275273
files
nameSC_intersects_LT.cpg
titleSC long-term intersects
contentTypetext/plain
pathOnDisk__disk__d3/6f/20/d36f2082fc1ed5297d299656a070fe076599b8d7
imageWidth580
imageHeight435
size5
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.dbf
titleSC long-term intersects
contentTypetext/plain
pathOnDisk__disk__e9/fa/cc/e9facc478f252777a9a016f080c8e260f44565b5
imageWidth580
imageHeight435
size9011744
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.prj
titleSC long-term intersects
contentTypetext/plain
pathOnDisk__disk__dd/2d/60/dd2d6068acdbe20fcbe7e40dc7f0378dfe3f523e
imageWidth580
imageHeight435
size402
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.sbn
titleSC long-term intersects
contentTypex-gis/x-shapefile
pathOnDisk__disk__a7/51/65/a7516535069f832a38c51ff6bf15dde62c6202b2
size406908
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.sbx
titleSC long-term intersects
contentTypex-gis/x-shapefile
pathOnDisk__disk__92/ff/94/92ff94ae3ebce1a9330e283784f869d61c4b067c
size4508
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.shp
titleSC long-term intersects
contentTypex-gis/x-shapefile
pathOnDisk__disk__48/f8/1d/48f81d63117e0e15cc658b8e47ff6346c48dbda7
size1179152
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.shx
titleSC long-term intersects
contentTypex-gis/x-shapefile
pathOnDisk__disk__4c/bd/97/4cbd97a5ff422d93ed953851a909f02dd16ca512
size336972
dateUploadedFri Jun 09 13:00:46 MDT 2023
nameSC_intersects_LT.xml
contentTypeapplication/fgdc+xml
pathOnDisk__disk__9f/68/ac/9f68ac98eae6ce525e880ce845a111389b9f6fc8
dateUploadedTue Aug 15 09:05:43 MDT 2023
originalMetadatatrue
checksum
valuee873601dc253757d9beb23b87973602f
typeMD5
geometryTypePoint
nameSC_intersects_LT
nativeCrsEPSG:32617

Item Actions

View Item as ...

Save Item as ...

View Item...