Historical shoreline positions for the coast of MA, from 1844 - 2014.

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20210831
Title:
Historical shoreline positions for the coast of MA, from 1844 - 2014.
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: doi:10.5066/P9O8QA8N
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/P9O8QA8N
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Marie K. Bartlett
Originator: Amy S. Farris
Originator: Kathryn M. Weber
Originator: Emily A. Himmelstoss
Publication_Date: 2021
Title:
Massachusetts Shoreline Change Project: A GIS Compilation of Vector Shorelines (1844-2018)
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: doi:10.5066/P9O8QA8N
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Bartlett, M.K., Farris, A.S., Weber, K.M., and Himmelstoss, E.A., 2021, Massachusetts shoreline change project—A GIS compilation of vector shorelines for the 2021 update: U.S. Geological Survey data release, https://doi.org/10.5066/P9O8QA8N
Online_Linkage: Online_Linkage: https://doi.org/10.5066/P9O8QA8N
Description:
Abstract:
The Massachusetts Office of Coastal Zone Management (MA CZM) launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast by compiling a database of historical (1800's-1989) shoreline positions and shoreline change maps. Trends of shoreline position over long and short-term timescales provide information to landowners, managers, and potential buyers about possible future impacts to coastal resources and infrastructure. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. The 2013 update also included a 2000 lidar shoreline covering most of the open-ocean coast, as well as a 2001 shoreline for the South Shore coastal region. In 2018, two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010-2014 were added to the dataset. This 2021 data release contains a compilation of previously published historical shoreline positions spanning 170 years (1844 to 2014), intended to be used as an authoritative shoreline database for the state. This dataset is an update to the Massachusetts Office of Coastal Zone Management Shoreline Change Project.
Purpose:
Shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. This dataset includes shorelines from 170 years ranging from 1844 to 2014 for the coastal region of Massachusetts. Historical shorelines were compiled from a variety of methods including T-sheets, orthophotos, and lidar data. These data are used to calculate rates of shoreline change for the MA CZM Shoreline Change Project. Rates of long-term and short-term shoreline change were generated in a GIS using the Digital Shoreline Analysis System (DSAS) version 5.1. DSAS uses a measurement baseline method to calculate rate-of-change statistics. Transects are cast from the reference baseline to intersect each shoreline, establishing measurement points used to calculate shoreline change rates.
Supplemental_Information:
Cross-referenced citations are applicable to the entire dataset. Additional citations are located within individual process steps that pertain specifically to the method described in that step. The shoreline database contains both MHW and high-water line (HWL) shorelines, which can lead to incorrect estimates of rates of change since visually identified HWL-type proxy shorelines are virtually never coincident with datum-based MHW-type shorelines. For open-ocean sandy beaches, historical, proxy-based HWL shorelines tend to be landward of datum-based MHW shorelines. A proxy-datum bias (PDB) describes this unidirectional horizontal offset that occurs between the MHW shoreline and the HWL shoreline, and is stored as a line feature class appended to the reference baseline, with an attribute for the bias value as well as the bias uncertainty. The PDB is used in conjunction with the shoreline files to calculate rates of shoreline change.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1844
Ending_Date: 2014
Currentness_Reference: ground condition of the data these shorelines are based on
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.1231
East_Bounding_Coordinate: -69.9258
North_Bounding_Coordinate: 42.8943
South_Bounding_Coordinate: 41.2374
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: USGS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Massachusetts Coastal Zone Management
Theme_Keyword: MA CZM
Theme_Keyword: National Assessment of Shoreline Change Project
Theme_Keyword: Massachusetts Shoreline Change Project
Theme_Keyword: DSAS
Theme_Keyword: Digital Shoreline Analysis System
Theme_Keyword: Shoreline
Theme_Keyword: Shoreline Change
Theme_Keyword: Mean High Water
Theme_Keyword: MHW
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: coastal processes
Theme_Keyword: geospatial datasets
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6102d53ed34ef8d7055e79dc
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Atlantic Coast
Place_Keyword: New England
Place_Keyword: Massachusetts
Place_Keyword: North Shore
Place_Keyword: South Shore
Place_Keyword: Cape Cod Bay
Place_Keyword: Outer Cape
Place_Keyword: South Cape
Place_Keyword: Nantucket
Place_Keyword: Martha’s Vineyard
Place_Keyword: Buzzard’s Bay
Access_Constraints: None
Use_Constraints:
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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Marie K. Bartlett
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2262
Contact_Facsimile_Telephone: 508-547-2310
Contact_Electronic_Mail_Address: mbartlett@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description: Map view of data
Browse_Graphic_File_Type: PNG
Native_Data_Set_Environment:
Microsoft Windows 10 Version 6.2 (Build 1909) Esri ArcGIS 10.7.1.11595
Cross_Reference:
Citation_Information:
Originator: Kathryn M. Weber
Originator: Jeffrey H. List
Originator: Karen L.M. Morgan
Publication_Date: 2005
Title:
An operational mean high water datum for determination of shoreline position from topographic lidar data
Geospatial_Data_Presentation_Form: Open-File Report
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1027
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2005/1027/
Cross_Reference:
Citation_Information:
Originator: Emily A. Himmelstoss
Originator: Amy S. Farris
Originator: Rachel E. Henderson
Originator: Meredith G. Kratzmann
Originator: Ayhan Ergul
Originator: Ouya Zhang
Originator: Jessica L. Zichichi
Publication_Date: 2018
Title:
Digital Shoreline Analysis System (version 5.0): U.S. Geological Survey software
Geospatial_Data_Presentation_Form: Software release
Series_Information:
Series_Name: software release
Issue_Identification: version 5.0
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P91MNNSN
Online_Linkage: https://code.usgs.gov/cch/dsas
Cross_Reference:
Citation_Information:
Originator: Peter Ruggiero
Originator: Jeffrey H. List
Publication_Date: 200909
Title:
Improving Accuracy and Statistical Reliability of Shoreline Position and Change Rate Estimates
Geospatial_Data_Presentation_Form: publication
Series_Information:
Series_Name: Journal of Coastal Research
Issue_Identification: vol. 255
Publication_Information:
Publication_Place: n/a
Publisher: Coastal Education and Research Foundation
Other_Citation_Details: ppg. 1069-1081
Online_Linkage: https://doi.org/10.2112/08-1051.1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The data provided here are a compilation of shorelines from multiple sources, spanning 170 years. The attributes are based on the requirements of the Digital Shoreline Analysis System (DSAS) software and have gone through a series of quality assurance procedures.
Logical_Consistency_Report:
Adjacent shoreline segments do not overlap and are not necessarily continuous. Shorelines were quality checked for accuracy. Any slight offsets between adjacent segments due to georeferencing and digitizing error are considered in the uncertainty calculations included in the attribute table. These data contain some short line segments (less than 30 meters) that were part of how the data were originally compiled and are in fact continuous with other segments of a given shoreline.
Completeness_Report:
This shoreline file is complete and contains all historical shoreline segments used to calculate shoreline change rates along sections of the Massachusetts coastal region where shoreline position data were available. These data adequately represented the shoreline position at the time of the survey. Remaining gaps in these data, if applicable, are a consequence of non-existing data or existing data that did not meet quality assurance standards.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Shoreline data have been acquired from 1844 to 2014, the horizontal accuracy of which varies with respect to data source from which the shorelines were digitized and the time period. Shorelines prior to 1938 have an estimated positional uncertainty of plus or minus 11.6 meters. Air photo-derived shorelines from 1969-1994 have an estimated positional uncertainty of plus or minus 6.7 meters. Shorelines derived from 15cm 2008 orthophotos have an estimated positional uncertainty of plus or minus 4.4 meters. Shorelines derived from 30cm 2008 orthophotos have an estimated positional uncertainty of plus or minus 4.9 meters. Positional uncertainty associated with shorelines extracted from lidar data (2000, 2010-2014) was calculated at each transect and includes three components: 1) the 95% confidence interval on the linear regression estimate of the shoreline position; 2) the uncertainty associated with the elevation of the raw lidar data which is stated as 0.1 m RMS in the lidar metadata; 3) the uncertainty due to extrapolation if the shoreline point was determined by extrapolation. The uncertainty for each lidar survey is the spatial average over all transects in each region.
Along with the uncertainty associated with shorelines extracted using this method, there is also a horizontal offset between the datum-based lidar MHW shorelines and the proxy-based historical shorelines such as those derived from NOAA T-sheets and aerial photos. This offset nearly always acts in one direction and these uncertainties and offsets are accounted for in the associated data release containing shoreline changes rates and a proxy-datum bias feature.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: E. Robert Thieler
Originator: James F. O'Connell
Originator: Courtney A. Schupp
Publication_Date: 2001
Title:
The Massachusetts Shoreline Change Project: 1800s to 1994 Technical Report
Edition: 1
Geospatial_Data_Presentation_Form: Administrative Report
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: Online_Linkage:
Type_of_Source_Media: vector digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1880
Ending_Date: 1993
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: MA Historical Shorelines 1
Source_Contribution:
Historical shorelines were imported to combine with other shorelines for the new historical shoreline database for MA.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Emily A. Himmelstoss
Originator: Meredith G. Kratzmann
Originator: Cheryl J. Hapke
Originator: E. Robert Thieler
Originator: Jeffrey List
Publication_Date: 20110119
Title:
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_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1119
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2010/1119/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1850
Ending_Date: 2000
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: MA historical shorelines 2
Source_Contribution:
Historical shorelines were imported to combine with other shorelines for the new historical shoreline database for MA.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Theresa L. Smith
Originator: Emily A. Himmelstoss
Originator: E. Robert Thieler
Publication_Date: 2013
Title:
Massachusetts Shoreline Change Project: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the 2013 update
Geospatial_Data_Presentation_Form: Open-File Report
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1183
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2012/1183/
Type_of_Source_Media: Digital and/or Hardcopy
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1845
Ending_Date: 2009
Source_Currentness_Reference: ground condition at the time of data collection
Source_Citation_Abbreviation: MA historical shorelines 3
Source_Contribution:
Historical shorelines were imported to combine with other shorelines for the new historical shoreline database for MA.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Emily A. Himmelstoss
Originator: Amy S. Farris
Originator: Kathryn M. Weber
Publication_Date: 20181126
Title:
Massachusetts Shoreline Change Project: A GIS Compilation of Vector Shorelines for the 2018 update
Geospatial_Data_Presentation_Form: dataset
Publication_Information:
Publication_Place: https://www.sciencebase.gov
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/p9o7s72b
Source_Scale_Denominator: 5000
Type_of_Source_Media: Digital and/or Hardcopy
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2010
Ending_Date: 2014
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: MA historical shorelines 4
Source_Contribution:
Shorelines published for 2010-2014 were imported into the new historical shoreline database for MA.
Process_Step:
Process_Description:
Shoreline data were sought in an effort to compile as many quality shorelines as possible for the region. Historic shoreline positions (1844-2014) were compiled and projected to the same coordinate system using Esri's ArcToolbox (v.10.7.1)> Data Management Tools > Projections and Transformations > Feature > Project. Parameters: input projection = Geographic Coordinate System (NAD_1983); output projection = WGS 1984 UTM 19N ; transformation = NAD_1983_To_WGS_1984_1. Shorelines were imported into a personal geodatabase in ArcMap v10.7.1 by right-clicking on the geodatabase > Import > feature class (multiple). This process step and all subsequent process steps were performed by the same person: Marie K. Bartlett
Source_Used_Citation_Abbreviation: MA historical shorelines 1
Source_Used_Citation_Abbreviation: MA historical shorelines 2
Source_Used_Citation_Abbreviation: MA historical shorelines 3
Source_Used_Citation_Abbreviation: MA historical shorelines 4
Process_Date: 2020
Source_Produced_Citation_Abbreviation: MA Historical Shoreline Database
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Marie K. Bartlett
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Rd
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2306
Contact_Facsimile_Telephone: 508-547-2310
Contact_Electronic_Mail_Address: mbartlett@usgs.gov
Process_Step:
Process_Description:
A rigorous QA/QC analysis was performed on all existing shorelines in the database. Some sections of historical shorelines (1845-1862, 1962-1963) that were not accurately representing the past shoreline positions were eliminated from the appended dataset in ArcMap v10.7.1 by selecting the segment and deleting. Shoreline features were checked for overlapping data and segmentation of adjacent shoreline segments with coincident vertices. Shoreline segments of the same calendar date and year were merged to form a single polyline feature by selecting all continuos shoreline segments within an ArcMap Edit session > Start Editing < Merge. Non-adjacent, compounded shoreline segments were broken back into individual features using Advanced Editing > Explode Multipart Feature in ArcMap v10.7.1.
Source_Used_Citation_Abbreviation: MA Historical Shoreline Database
Process_Date: 2020
Source_Produced_Citation_Abbreviation: MA Historical Shorelines QAQC
Process_Step:
Process_Description:
After all shorelines were edited in a personal geodatabase and used to compute shoreline change rates, the shoreline feature class was exported from the personal geodatabase back to a shapefile in ArcMap v.10.7.1 by right-clicking on the shoreline file > Export > To Shapefile (single).
Source_Used_Citation_Abbreviation: MA Historical Shorelines QAQC
Process_Date: 2021
Source_Produced_Citation_Abbreviation: MA Historical Shorelines shapefile
Process_Step:
Process_Description:
The exported shoreline shapefiles were projected in Esri's ArcToolbox (v7.1) > Data Management Tools > Projections and Transformations > Project. Input projection = UTM zone 19N (WGS84); output projection = geographic coordinates (WGS84); transformation = none.
Source_Used_Citation_Abbreviation: MA Historical Shorelines shapefile
Process_Date: 2021
Source_Produced_Citation_Abbreviation: MA Historical Shorelines 1844 - 2014
Process_Step:
Process_Description: Tweaked a thesaurus name (20211117).
Process_Date: 20211117
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 5402
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197393747
Longitude_Resolution: 0.0264611291
Geographic_Coordinate_Units: Decimal seconds
Geodetic_Model:
Horizontal_Datum_Name: WGS_1984
Ellipsoid_Name: WGS_84
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: MA_Historical_Shorelines_all.shp
Entity_Type_Definition:
This dataset includes polyline shorelines from 170 years ranging from 1844 to 2014 for the coastal region of Massachusetts.
Entity_Type_Definition_Source: Producer Defined
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry. These shorelines are polyline shapefiles.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: Contour
Attribute_Definition:
The height of MHW was determined from vdatum provided by NOAA. (https://vdatum.noaa.gov/). One MHW value was used for a continuous section of coast (as opposed to using a continuously varying value). This contour attribute value is reported in meters and is always within 15 cm of the value returned by vdatum at any point along the coast. This dataset combines two methods of shoreline extraction, profile and contour. A value of zero in this field indicates the profile method of extraction was used.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 1.44
Attribute:
Attribute_Label: Date_
Attribute_Definition:
Date of shoreline position; date of survey as indicated on source material in month/day/year (mm/dd/yyyy) format. A default date of 07/01 was assigned to shorelines where only the year was known (month and day unknown). Using July, the mid-point month of the calendar year, minimizes the potential offset to the actual shoreline date by a maximum of six months.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 10
Attribute:
Attribute_Label: Uncy
Attribute_Definition:
Estimate of shoreline position uncertainty in meters. Actual shoreline position is within the range of this value (plus or minus, meters). Methods used to calculate the uncertainty are listed in the process steps.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 11.6
Attribute:
Attribute_Label: Source
Attribute_Definition:
Agency that provided shoreline feature or the data source used (e.g. T-sheet) to digitize shoreline feature.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 25
Attribute:
Attribute_Label: Source_b
Attribute_Definition: Method of deriving shoreline feature, if known.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 25
Attribute:
Attribute_Label: Default_D
Attribute_Definition:
Differentiates between shorelines that have known month and day attributes and those that use the default value of 07/01 when only the year is known.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Shoreline month and day are known.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
Shoreline month and day are unknown and default value of 07/01 was used.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: Region
Attribute_Definition:
Subregion of Massachusetts coast where shoreline data are located. Other shoreline files extracted from different methods required that the data be split into regions and this field correlates to those extents. Shoreline change rates were calculated by region and in some cases, regions were further split into “sheltered”, “exposed”, “or headland” to accommodate baseline orientation requirements.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 25
Attribute:
Attribute_Label: Year_
Attribute_Definition: Four-digit year of shoreline
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1844
Range_Domain_Maximum: 2014
Attribute:
Attribute_Label: Type
Attribute_Definition: The vertical shoreline reference.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MHW
Enumerated_Domain_Value_Definition: mean high water - a datum-based reference
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: HWL
Enumerated_Domain_Value_Definition: High water line - a proxy-based historical shoreline
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: Shape_Leng
Attribute_Definition:
Length of feature/transect in meter units (WGS 1984 UTM Zone 19N)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: unlimited
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Federal Center, Building 810, MS 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The dataset contains polyline shapefiles of shoreline data derived from a profile or contour method, (MA_historical_shorelines.shp and other shapefile components), browse graphic (MA_historical_shorelines_browse), and the FGDC CSDGM metadata in XML format.
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Number: ArcGIS 10.7
Format_Specification: Esri polyline shapefile
Format_Information_Content:
Dataset contains the shapefile, browse graphic, and CSDGM metadata.
Transfer_Size: 11
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link downloads all the files on the dataset landing page. The second link is to the dataset landing page where individual files can be viewed and downloaded. The third link is to the data release main landing page.
Fees: None
Technical_Prerequisites:
These data are available in a polyline shapefile format. The user must have software to read and process the data components of a shapefile.
Metadata_Reference_Information:
Metadata_Date: 20211117
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Marie K. Bartlett
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 X2306
Contact_Electronic_Mail_Address: mbartlett@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9O8QA8N/MA_historical_shorelines_meta.html>
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