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Short Citation:
National Geodetic Survey, 2024: Shoreline Mapping Program of COHASSET HARBOR TO NAHANT BAY, MA, MA0401B, https://www.fisheries.noaa.gov/inport/item/61586.

Item Identification

Title: Shoreline Mapping Program of COHASSET HARBOR TO NAHANT BAY, MA, MA0401B
Status: Completed
Creation Date: 2020
Abstract:

These data provide an accurate high-resolution shoreline compiled from imagery of COHASSET HARBOR TO NAHANT BAY, MA . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://www.fisheries.noaa.gov/inport/item/39808

Purpose:

The shoreline and associated data layers were originally intended to support NOAA Nautical Chart production. These datasets may be beneficial for performing change analysis for erosion and accretion studies, land use planning, determination of boundary extent, and other types of decision making.

Supplemental Information:

Information on shapefile attributes can be found at https://www.fisheries.noaa.gov/inport/item/60778

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
oceans
NGDA Portfolio Themes
National Geospatial Data Asset
NGDA Portfolio Themes
NGDA
NGDA Portfolio Themes
Water Oceans and Coasts Theme
UNCONTROLLED
None Coastal Mapping Program
None coastal maps
None coastal survey
None Geographic Cell
None National Shoreline
None NOAA Shoreline
None shoreline
None Shoreline Mapping Program

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS
UNCONTROLLED
None COHASSET HARBOR TO NAHANT BAY

Physical Location

Organization: National Geodetic Survey
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: GIS Files
Maintenance Frequency: None Planned
Data Presentation Form: Vector
Distribution Liability:

These data were generated for use by NGS during the course of its development of potential final products to fulfill its statutory mission. Although NGS is making these data available to others who may find the data of value, NGS does not warrant, endorse, or recommend the use of these data for any given purpose. The user assumes the entire risk related to the use of these data. These data are not for navigational purposes. NGS is providing these data "as is," and NGS disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will NGS be liable to you or to any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profits resulting from any use or misuse of these data.

Data Set Credit: NOAA

Support Roles

Data Steward

CC ID: 949782
Date Effective From: 2020
Date Effective To:
Contact (Organization): NGS Communications and Outreach Branch
Email Address: ngs.infocenter@noaa.gov
Phone: (301) 713-3242
Fax: (301) 713-4172

Distributor

CC ID: 949783
Date Effective From: 2020
Date Effective To:
Contact (Organization): NGS Communications and Outreach Branch
Email Address: ngs.infocenter@noaa.gov
Phone: (301) 713-3242
Fax: (301) 713-4172

Metadata Contact

CC ID: 949784
Date Effective From: 2020
Date Effective To:
Contact (Organization): NGS Communications and Outreach Branch
Email Address: ngs.infocenter@noaa.gov
Phone: (301) 713-3242
Fax: (301) 713-4172

Point of Contact

CC ID: 949785
Date Effective From: 2020
Date Effective To:
Contact (Organization): NGS Communications and Outreach Branch
Email Address: ngs.infocenter@noaa.gov
Phone: (301) 713-3242
Fax: (301) 713-4172

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 949788
W° Bound: -71.1426754
E° Bound: -70.8169382
N° Bound: 42.4734967
S° Bound: 42.2092239

Extent Group 1 / Time Frame 1

CC ID: 949787
Time Frame Type: Range
Start: 2005-05-05
End: 2005-06-23

Spatial Information

Reference Systems

Reference System 1

CC ID: 949777

Coordinate Reference System

CRS Type: Geographic 2D
EPSG Code: EPSG:4269
EPSG Name: NAD83
See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. We do request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these data in a report, publication, or presentation.

Distribution Information

Distribution 1

CC ID: 949789
Start Date: 2020
End Date: Present
Download URL: https://www.ngs.noaa.gov/NSDE/
Distributor: NGS Communications and Outreach Branch (2020 - Present)
Description:

Viewer to download shoreline vector files

File Type (Deprecated): Zip
Compression: Zip

Distribution 2

CC ID: 949790
Start Date: 2020
End Date: Present
Download URL: https://www.ngs.noaa.gov/desc_reports/MA0401B.PDF
Distributor: NGS Communications and Outreach Branch (2020 - Present)
File Name: NOAA COASTAL MAPPING PROGRAM PROJECT COMPLETION REPORT
Description:

Project Completion Report

File Type (Deprecated): PDF
Distribution Format: PDF - Adobe Portable Document Format

URLs

URL 1

CC ID: 949779
URL: https://shoreline.noaa.gov/
Name: NOAA Shoreline Website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Web page that provides information about and access to shoreline.

URL 2

CC ID: 949780
URL: https://www.ngs.noaa.gov/
Name: National Geodetic Survey
URL Type:
Online Resource
File Resource Format: HTML
Description:

Web page for NOAA's National Geodetic Survey

URL 3

CC ID: 949781
URL: https://www.ngs.noaa.gov/INFO/remote-sensing.shtml
Name: National Geodetic Survey Remote Sensing Division
URL Type:
Online Resource
File Resource Format: HTML
Description:

Web page for NOAA's National Geodetic Survey remote sensing data and imagery.

Data Quality

Horizontal Positional Accuracy:

Compiled to meet 1.0 meters horizontal accuracy at 95% confidence level. This predicted accuracy

of compiled well-defined points is a deductive estimate based on

statistics of aerotriangulation

Completeness Measure:

All data are clipped to the neatline representing a surveyed project boundary. Line segments which did not close were snapped by the nodes to create consistently tied strings without node dangles.

Completeness Report:

The shoreline and associated data are a representation based on an office interpretation of imagery at the time of photographs taken 2005-05-05 to 2005-06-23. To maintain shoreline continuity, a line with 'Shoreline/Alongshore Feature Boundary' attribution was added to the 'Shoreline' class. This feature is an artificial line that separates double-lined alongshore features from the shoreline. The 'Shoreline/Alongshore Feature Boundary' indicates to the user that a man-made alongshore feature is coincident to the shoreline in the data file. The rectangular geographic boundary limits is for data management purposes and does not infer complete surveyed coverage.

Conceptual Consistency:

The attribute accuracy was verified on the softcopy workstation by overlaying the vectors over the imagery and by creating checkplots of the attributed linework. The attributes were translated into NGS's Coastal Cartographic Object Attribute Source Table (C-COAST) for data consistency. The C-COAST attributes were given symbology and visually inspected to verify attribute accuracy.

Lineage

Sources

Shoreline Delineation

CC ID: 949774
Contact Role Type: Originator
Contact Type: Organization
Contact Name: National Geodetic Survey

Process Steps

Process Step 1

CC ID: 949775
Description:

Softcopy compilation was from interpreted imagery based on standard digital photogrammetric procedures. All features were attributed during compilation. The exported shapefile attribution was translated to conform with the NGS 'Coastal Cartographic Object Attribute Source Table (C-COAST)' attribution scheme.

Process Date/Time: 2006-09-30 00:00:00
Process Contact: National Geodetic Survey (NGS)

Catalog Details

Catalog Item ID: 61586
GUID: gov.noaa.nmfs.inport:61586
Metadata Record Created By: Maryellen Sault
Metadata Record Created: 2020-07-29 14:08+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2021-01-25
Owner Org: NGS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-01-25
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-01-25