U.S. Geological Survey
2017
Offshore baseline for the southern North Carolina (NCsouth) coastal region generated to calculate shoreline change rates
1
vector digital data
data release
DOI:10.5066/F74X55X7
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/F74X55X7
https://www.sciencebase.gov/catalog/item/58b891b0e4b01ccd5500c34a
https://www.sciencebase.gov/catalog/file/get/58b891b0e4b01ccd5500c34a
M.G. Kratzmann
E.A. Himmelstoss
E.R. Thieler
2017
National Assessment of Shoreline Change— A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast
1
data release
DOI:10.5066/F74X55X7
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/F74X55X7
https://www.sciencebase.gov/catalog/item/58055f50e4b0824b2d1c1ee7
Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.
There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.
This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for southern North Carolina from Shackleford Banks to Cape Fear. This baseline layer serves as the starting point for all transects cast by the DSAS application. The transects intersect each shoreline and establish measurement points used to calculate shoreline-change rates.
Rates of long-term and short-term shoreline change were generated in a GIS using the DSAS version 4.3- An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2008-1278, Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan.
2017
publication date
None planned
-78.042134
-76.517287
34.698414
33.826899
USGS Metadata Identifier
USGS:58b891b0e4b01ccd5500c34a
None
Baseline
Shoreline
Shoreline Change
Digital Shoreline Analysis System
DSAS
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Woods Hole Coastal and Marine Science Center
WHCMSC
National Assessment of Shoreline Change Project
ISO 19115 Topic Category
oceans
environment
geoscientificInformation
Marine Realms Information Bank (MRIB) Keywords
effects of coastal change
coastal processes
shoreline accretion
shoreline erosion
USGS Thesaurus
coastal processes
erosion
shoreline accretion
None
North Carolina
NC
Shackleford Banks
Atlantic Beach
Bogue Banks
Browns Inlet
Carolina Beach
New River Inlet
Wrightsville Beach
Kure Beach
Topsail Island
Emerald Isle
Bald Head Island
Cape Fear
Atlantic Coast
United States
North America
None
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
U.S. Geological Survey
E.A. Himmelstoss
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700
508-547-2310
ehimmelstoss@usgs.gov
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552
Robert A. Morton
Tara L. Miller
2005
National Assessment of Shoreline Change: Part 2 Historical Shoreline Changes and Associated Coastal Land Loss along the U.S. Southeast Atlantic Coast
Open-File Report
2005-1401
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2005/1401/
E.R. Thieler
E.A. Himmelstoss
J.L. Zichichi
A. Ergul
2009
Digital Shoreline Analysis System (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change
Open-File Report
2008-1278
Reston, VA
U.S. Geological Survey
Current version of software at time of use was 4.3
https://woodshole.er.usgs.gov/project-pages/DSAS/version4/
https://woodshole.er.usgs.gov/project-pages/DSAS/
E.A. Himmelstoss
M.G. Kratzmann
E.R. Thieler
2017
National Assessment of Shoreline Change: Summary Statistics for Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of Mexico and Southeast Atlantic Coasts
Open-File Report
2017-1015
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/ofr20171015
The attribute in this layer is based on the requirements for use within the Digital Shoreline Analysis System (DSAS) software (USGS Open-File Report 2008-1278). The data have been quality checked.
The polyline has an identification attribute field (ID). This field is used by the Digital Shoreline Analysis System (DSAS) to designate the alongshore order of baselines if there are more than one.
This baseline file is complete and contains the two baseline segments used to cast transects along sections of the southern North Carolina coastal region where lidar shoreline position data were available and additional shoreline data are present to calculate either a short- or long-term rate.
The baseline serves as a reference point for transects cast by the Digital Shoreline Analysis System (DSAS) software. It does not correspond to any real-world feature.
A baseline was constructed offshore from the time series of shoreline positions using standard editing tools in Esri's ArcMap v10. The baseline was positioned to conform to changes in the combined orientation of the shorelines alongshore. This was done so that the transects, which are generated by the Digital Shoreline Analysis System v4.3 from the baseline, would intersect perpendicular to the general trend of the shorelines.
This process step and all subsequent process steps were performed by the same person - M.G. Kratzmann.
2014
M.G. Kratzmann
U.S. Geological Survey
mailing address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700
508-457-2310
mkratzmann@usgs.gov
The baseline feature class was imported into a personal geodatabase in ArcCatalog v10 by right-clicking on the geodatabase > Import for use with the Digital Shoreline Analysis System (DSAS) v4.3 software to perform rate calculations.
2014
The baseline feature class was exported from a personal geodatabase to a shapefile in ArcCatalog v10 by performing a right-mouse click on the data layer > export > to shapefile (single).
2014
The baseline shapefile was projected in ArcToolbox v10.2 > Data Management Tools > Projections and Transformations > Project. parameters: input projection - UTM zone 18N (WGS 84); output projection- geographic coordinates (WGS 84); transformation = none.
2015
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20170825
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20200810
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Vector
String
2
0.000001
0.000001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
NCsouth_baseline
Reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics
U.S. Geological Survey
FID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
Esri
Coordinates defining the features.
ID
Field required by the Digital Shoreline Analysis System (DSAS) software. DSAS uses this value to determine the ordering sequence of transects when the baseline feature contains multiple segments. Individual segments are numbered sequentially alongshore.
U.S. Geological Survey
1
2
The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the individual attribute descriptions for detailed information.
U.S. Geological Survey
U.S. Geological Survey
mailing and physical address
Denver Federal Center
Building 810
MS 302
Denver
CO
80225
USA
1-888-275-8747
sciencebase@usgs.gov
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.
Shapefile
ArcGIS 10.2
Esri polyline shapefile
These files (.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx) are a collection of files with a common filename prefix and must be downloaded and stored in the same directory. Together they are the components of the shapefile and include FGDC compliant metadata.
no compression applied
0.002
https://www.sciencebase.gov/catalog/file/get/58b891b0e4b01ccd5500c34a
https://www.sciencebase.gov/catalog/item/58b891b0e4b01ccd5500c34a
https://www.sciencebase.gov/catalog/item/58055f50e4b0824b2d1c1ee7
https://doi.org/10.5066/F74X55X7
The first link downloads the contents of the data page as a zip file, the second link is to the landing page of the data, the third and fourth links are to the main landing page of the data release.
None
These data are available in a polyline shapefile format. The user must have software to read and process the data components of a shapefile.
20200810
M.G. Kratzmann
U.S. Geological Survey
mailing address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700
508-547-2310
mkratzmann@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time