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U.S. Geological Survey Open-File Report 2010-1119

The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the New England and Mid-Atlantic Coasts


Geospatial Data

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Data in this report are available as downloadable files based on the ten geomorphic regions that make up the New England and Mid-Atlantic study area.  The index maps highlight areas of shoreline coverage in yellow and indicate the extent of each region.  All vector data are delivered as ESRI shapefiles in the geographic coordinate system (WGS84) and distributed with Federal Geographic Data Committee (FGDC) compliant metadata in Extensible Markup Language (*.xml) format. Tabular data are delivered as dBase IV (*.dbf) structured files which can be read with ESRI ArcGIS software as well as many other available spreadsheet programs.  Metadata are also provided for all spatial and tabular data in text (*.txt) and FGDC Classic (*.html) format.  ESRI ArcCatalog 9.x can also be used to examine the metadata in a variety of additional formats.

This report includes all of the files necessary to perform shoreline change analyses using the Digital Shoreline Analysis System (DSAS) software.  Please refer to Thieler and others (2009) for information about the DSAS software application that was used to perform the rate calculation methods, which are discussed at length in the full report on the National Assessment of Shoreline Change for the New England and Mid-Atlantic Coasts (Hapke and others, 2010).

The following files are available for download for each geomorphic region (see index maps):

  1. Compiled shorelines from multiple sources which are attributed within each dataset and included in the metadata.
  2. Offshore baseline used for generating shore-normal transects in DSAS
  3. Long-term transect file with rates
  4. Short-term transect file with rates
  5. Shoreline uncertainty table containing the lidar positional uncertainty, bias values for the MHW - HWL shoreline proxy offsets, and the uncertainty associated with each bias value.

 

Data layers can be downloaded individually using the table below. Individual layers are provided as WinZip files. If WinZip® is not currently installed on the local system, go to WinZip® (http://www.winzip.com) to download the latest version.

New England


New England North

Click on figure for larger image.
Thumbail image for Figure 1, map of the New England shorelines, and link to full-sized figure.
Figure 1. Map of Northern New England shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

NewEnglandN_shorelines.shp

Compiled shorelines for New England North region

.html
.txt

.zip
(582 KB)

NewEnglandN_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(10 KB)

NewEnglandN_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(155 KB)

NewEnglandN_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(38 KB)

NewEnglandN_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
 ( 34 KB)

Greater Boston

Click on figure for larger image.
Thumbail image for Figure 2, map of the Boston, Massachusetts shorelines, and link to full-sized figure.
Figure 2. Map of the Greater Boston, MA shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

GreaterBoston_shorelines.shp

Compiled shorelines for Greater Boston region

.html
.txt

.zip
(1.5 MB)

GreaterBoston_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(8 KB)

GreaterBoston_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(198 KB)

GreaterBoston_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(114 KB)

GreaterBoston_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
 (37 KB)

Cape Cod

Click on figure for larger image.
Thumbail image for Figure 3, map of the Cape Cod, Massachusetts shorelines, and link to full-sized figure.
Figure 3. Map of the Cape Cod, MA shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

CapeCod_shorelines.shp

Compiled shorelines for Cape Cod region

.html
.txt

.zip
(468 KB)

CapeCod_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(7 KB)

CapeCod_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(152 KB)

CapeCod_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(138 KB)

CapeCod_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(29 KB )

Massachusetts Islands

Click on figure for larger image.
Thumbail image for Figure 4, map of the  Massachusetts Islands shorelines, and link to full-sized figure.
Figure 4. Map of Marthas Vineyard and Nantucket, MA shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

MA_Islands_shorelines.shp

Compiled shorelines for MA Islands region

.html
.txt

.zip
(794 KB)

MA_Islands_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(10 KB)

MA_Islands_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(155 KB)

MA_Islands_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(78 KB)

MA_Islands_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(31 KB)

New England South

Click on figure for larger image.
Thumbail image for Figure 5, map of the  Southern New England shorelines, and link to full-sized figure.
Figure 5. Map of the Southern Massachusetts and Rhode Island shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

NewEnglandS_shorelines.shp

Compiled shorelines for New England South region

.html
.txt

.zip
(766 KB)

NewEnglandS_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(10 KB)

NewEnglandS_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(135 KB)

NewEnglandS_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(95 KB)

NewEnglandS_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(27 KB)

Mid-Atlantic


Long Island

Click on figure for larger image.
Thumbail image for Figure 6, map of the Long Island shorelines, and link to full-sized figure.
Figure 6. Map of the Long Island, NY shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

LongIsland_shorelines.shp

Compiled shorelines for Long Island region

.html
.txt

.zip
(1.4 MB)

LongIsland_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(14 KB)

LongIsland_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(298 KB)

LongIsland_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(249 KB)

LongIsland_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(53 KB)

New Jersey North

Click on figure for larger image.
Thumbail image for Figure 7, map of the northern New Jersey shorelines, and link to full-sized figure.
Figure 7. Map of the northern New Jersey shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

NewJerseyN_shorelines.shp

Compiled shorelines for New Jersey North region

.html
.txt

.zip
(789 KB)

NewJerseyN_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(7 KB)

NewJerseyN_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(192 KB)

NewJerseyN_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(163 KB)

NewJerseyN_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(38 KB)

New Jersey South

Click on figure for larger image.
Thumbail image for Figure 8, map of the southern New Jersey shorelines, and link to full-sized figure.
Figure 8. Map of the southern New Jersey shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

NewJerseyS_shorelines.shp

Compiled shorelines for New Jersey South region

.html
.txt

.zip
(807 KB)

NewJerseyS_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(10 KB)

NewJerseyS_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(144 KB)

NewJerseyS_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(112 KB)

NewJerseyS_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(29 KB)

Delmarva North

Click on figure for larger image.
Thumbail image for Figure 9, map of the Delaware, Maryland, and northern Virgina shorelines, and link to full-sized figure.
Figure 9. Map of the Delaware, Maryland, and northern Virgina shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

DelmarvaN_shorelines.shp

Compiled shorelines for Delmarva North region

.html
.txt

.zip
(434 KB)

DelmarvaN_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(7 KB)

DelmarvaN_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(194 KB)

DelmarvaN_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(182 KB)

DelmarvaN_shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(24 KB)

Delmarva South/Southern Virginia

Click on figure for larger image.
Thumbail image for Figure 10, map of the southern Virgina shorelines, and link to full-sized figure.
Figure 10. Map of the southern Virgina shoreline showing specific shoreline locations compiled for this study.

File

Description

Metadata

Download

DelmarvaS_SVA_shorelines.shp

Compiled shorelines for Delmarva South/Southern Virginia region

.html
.txt

.zip
(613 KB)

DelmarvaS_SVA_baseline.shp

Offshore baseline for generating shore-normal transects in DSAS

.html
.txt

.zip
(7 KB)

DelmarvaS_SVA_LT.shp

Shore-normal transects and associated long-term rate calculations

.html
.txt

.zip
(234 KB)

DelmarvaS_SVA_ST.shp

Shore-normal transects and associated short-term rate calculations

.html
.txt

.zip
(195 KB)

DelmarvaS_SVA__shorelines_uncertainty.dbf

Shoreline uncertainty table

.html
.txt

.zip
(44 KB)

 

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