USGS OFR 2012-1183: Publication Title, Introduction

U.S. Geological Survey Open-File Report 2012-1183

Massachusetts Shoreline Change Project: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the 2013 update

Geospatial Data

Data in this report are available as downloadable files based on the ten geographic regions that make up the Massachusetts study area. The index map (fig.1) identifies the extent of each region and highlights the areas of alongshore data coverage. All vector data are delivered as Esri shapefiles in the geographic coordinate system (NAD 83) 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 within 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, Massachusetts Shoreline Change Mapping and Analysis Project, 2013 Update (Thieler and others, 2013).

The following files are available for download:

1) Compiled shorelines from multiple sources for each geographic region within the Massachusetts study area. Sources are documented in the shapefile attribute table and included in the metadata.
2) An offshore baseline for each region, which was used for generating shore-normal transects in DSAS.
3) Measurement transects and reported long-term rates for each region.
4) Measurement transects and reported long-term rates excluding the 1970’s and 1994 data for each region.
5) Measurement transects and reported short-term rates for each region.
6) Shoreline uncertainty tables containing the lidar positional uncertainty, bias values for the MHW - HWL shoreline proxy offsets, and the uncertainty associated with the bias value where lidar data was available.

North Shore (index map)

File	Description	Metadata	Download
NorthShoreA_shorelines.shp	Compiled shorelines for the North Shore A subregion of Massachusetts	.html .txt	.zip (482 KB)
NorthShoreA_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with NorthShoreA_shorelines.shp for the North Shore A subregion	.html .txt	.zip (45 KB)
NorthShoreB_shorelines.shp	Compiled shorelines for the North Shore B subregion of Massachusetts	.html .txt	.zip (2.5 MB)
NorthShoreB_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with NorthShoreB_shorelines.shp for the North Shore B subregion	.html .txt	.zip (47 KB)
NorthShore_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (45 KB)
NorthShore_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the North Shore region of Massachusetts	.html .txt	.zip (388 KB)
NorthShore_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations for the North Shore region	.html .txt	.zip (867 KB)
NorthShore_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations (without the 1970s and 1994 shorelines) for the North Shore region	.html .txt	.zip (352 KB)
NorthShore_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines, for the North Shore region	.html .txt	.zip (592 KB)
NorthShore_transects_rates_STlr	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (256 KB)
NorthShore_intersects_STlr	Location of shoreline points on each transect used to calculate short-term linear regression rates	.html .txt	.zip (370 KB)
NorthShore_transects_rates_STepr	Shore-normal transects and associated short-term end point rate calculations (where not enough data was available to calculate a linear regression rate)	.html .txt	.zip (143 KB)
NorthShore_intersects_STepr	Location of shoreline points on each transect used to calculate short-term end point rates (where not enough data was available to calculate a linear regression rate)	.html .txt	.zip (147 KB)

Boston (index map)

File	Description	Metadata	Download
Boston_shorelines.shp	Compiled shorelines for the Boston region of Massachusetts	.html .txt	.zip (635 KB)
Boston_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (29 MB)
Boston_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Boston region of Massachusetts	.html .txt	.zip (152 KB)
Boston_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (265 KB)
Boston_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (119 KB)
Boston_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (174 KB)
Boston_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (39 KB)
Boston_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression rate calculations	.html .txt	.zip (41 KB)
Boston_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (127 KB)
Boston_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (129 KB)

South Shore (index map)

File	Description	Metadata	Download
SouthShore_shorelines.shp	Compiled shorelines for the South Shore region of Massachusetts	.html .txt	.zip (1.9 MB)
SouthShore_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with SouthShore_shorelines.shp	.html .txt	.zip (47 KB)
SouthShore_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (40 KB)
SouthShore_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the South Shore region of Massachusetts	.html .txt	.zip (348 KB)
SouthShore_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (828 KB)
SouthShore_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (339 KB)
SouthShore_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (619 KB)
SouthShore_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (271 KB)
SouthShore_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (477 KB)
SouthShore_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (95 KB)
SouthShore_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (95 KB)

Cape Cod Bay (index map)

File	Description	Metadata	Download
CapeCodBay_shorelines.shp	Compiled shorelines for the Cape Cod Bay region of Massachusetts	.html .txt	.zip (1.5 MB)
CapeCodBay_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with CapeCodBay_shorelines.shp	.html .txt	.zip (47 KB)
CapeCodBay_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (28 MB)
CapeCodBay_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Cape Cod Bay region of Massachusetts	.html .txt	.zip (235 KB)
CapeCodBay_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (534 KB)
CapeCodBay_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (223 KB)
CapeCodBay_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (374 KB)
CapeCodBay_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (175 KB)
CapeCodBay_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression rate calculations	.html .txt	.zip (246 KB)
CapeCodBay_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (80 KB)
CapeCodBay_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (81 KB)

Outer Cape Cod (index map)

File	Description	Metadata	Download
OuterCapeCod_shorelines.shp	Compiled shorelines for the Outer Cape Cod region of Massachusetts	.html .txt	.zip (1.4 MB)
OuterCapeCod_shorelines_uncertainty.dbf	Shoreline uncertainty table used in conjunction with OuterCapeCod_shorelines.shp	.html .txt	.zip (40 KB)
OuterCapeCod_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (21 MB)
OuterCapeCod_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Outer Cape Cod region of Massachusetts	.html .txt	.zip (236 KB)
OuterCapeCod_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (714 KB)
OuterCapeCod_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (226 KB)
OuterCapeCod_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (513 KB)
OuterCapeCod_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (212 KB)
OuterCapeCod_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (383 KB)
OuterCapeCod_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (40 KB)
OuterCapeCod_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (41 KB)

South Cape Cod (index map)

File	Description	Metadata	Download
SouthCapeCod_shorelines.shp	Compiled shorelines for the South Cape Cod region of Massachusetts	.html .txt	.zip (1.4 MB)
SouthCapeCod_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (31 MB)
SouthCapeCod_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the South Cape Cod region of Massachusetts	.html .txt	.zip (172 KB)
SouthCapeCod_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (359 KB)
SouthCapeCod_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (137 KB)
SouthCapeCod_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (203 KB)
SouthCapeCod_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (160 KB)
SouthCapeCod_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (210 KB)
SouthCapeCod_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (36 KB)
SouthCapeCod_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (35 KB)

Buzzards Bay (index map)

File	Description	Metadata	Download
BuzzardsBay_shorelines.shp	Compiled shorelines for the Buzzards Bay region of Massachusetts	.html .txt	.zip (4.7 MB)
BuzzardsBay_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with BuzzardsBay_shorelines.shp	.html .txt	.zip (39 KB)
BuzzardsBay_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (123 KB)
BuzzardsBay_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Buzzards Bay region of Massachusetts	.html .txt	.zip (495 KB)
BuzzardsBay_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (1.1 MB)
BuzzardsBay_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (401 KB)
BuzzardsBay_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (638 KB)
BuzzardsBay_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (452 KB)
BuzzardsBay_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (622 KB)
BuzzardsBay_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (66 KB)
BuzzardsBay_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (66 KB)

Elizabeth Islands (index map)

File	Description	Metadata	Download
ElizabethIslands_shorelines.shp	Compiled shorelines for the Elizabeth Islands, Massachusetts	.html .txt	.zip (1.2 MB)
ElizabethIslands_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (32 MB)
ElizabethIslands_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Elizabeth Islands region of Massachusetts	.html .txt	.zip (195 KB)
ElizabethIslands_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (410 KB)
ElizabethIslands_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (195 KB)
ElizabethIslands_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (335 KB)
ElizabethIslands_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (175 KB)
ElizabethIslands_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (180 KB)

Martha's Vineyard (index map)

File	Description	Metadata	Download
MarthasVineyard_shorelines.shp	Compiled shorelines for Martha’s Vineyard, Massachusetts	.html .txt	.zip (1.3 MB)
MarthasVineyard_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with MarthasVineyard_shorelines.shp	.html .txt	.zip (41 KB)
MarthasVineyard_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (28 KB)
MarthasVineyard_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Martha’s Vineyard region of Massachusetts	.html .txt	.zip (262 KB)
MarthasVineyard_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (578 KB)
MarthasVineyard_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (232 KB)
MarthasVineyard_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (381 KB)
MarthasVineyard_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (198 KB)
MarthasVineyard_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (285 KB)
MarthasVineyard_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (84 KB)
MarthasVineyard_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (85 KB)

Nantucket (index map)

File	Description	Metadata	Download
Nantucket_shorelines.shp	Compiled shorelines for Nantucket, Massachusetts	.html .txt	.zip (1.3 MB)
Nantucket_shorelines_uncertainty.dbf	Shoreline uncertainty table from OFR 2010-1119 used in conjunction with Nantucket_shorelines.shp	.html .txt	.zip (41 KB)
Nantucket_baseline.shp	Offshore baseline for generating shore-normal transects in DSAS	.html .txt	.zip (29 KB)
Nantucket_transects_rates_LTw.shp	Shore-normal transects and associated long-term rate calculations for the Nantucket region of Massachusetts	.html .txt	.zip (234 KB)
Nantucket_intersects_LTw.shp	Location of shoreline points on each transect used to calculate long-term rate calculations	.html .txt	.zip (587 KB)
Nantucket_transects_rates_LTwo.shp	Shore-normal transects and associated long-term rate calculations without the 1970s and1994 shorelines	.html .txt	.zip (233 KB)
Nantucket_intersects_LTwo.shp	Location of shoreline points on each transect used to calculate long-term rate calculations without the 1970s and 1994 shorelines	.html .txt	.zip (423 KB)
Nantucket_transects_rates_STlr.shp	Shore-normal transects and associated short-term linear regression rate calculations	.html .txt	.zip (210 KB)
Nantucket_intersects_STlr.shp	Location of shoreline points on each transect used to calculate short-term linear regression calculations	.html .txt	.zip (323 KB)
Nantucket_transects_rates_STepr.shp	Shore-normal transects and associated short-term end point rate calculations	.html .txt	.zip (47 KB)
Nantucket_intersects_STepr.shp	Location of shoreline points on each transect used to calculate short-term end point rate calculations	.html .txt	.zip (47 KB)

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