Shorelines for Barnegat and Great Bay, NJ: 1839 to 2012 (ver 1.1, December 2017)

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Frequently anticipated questions:

What does this data set describe?

Title:
Shorelines for Barnegat and Great Bay, NJ: 1839 to 2012 (ver 1.1, December 2017)
Abstract:
This data set represents vector shorelines for the New Jersey coastline (Point Pleasant, NJ to Longport, NJ) from 1839 to 2012. Data were obtained from multiple data sources, including the U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), and New Jersey Department of Environmental Protection (NJDEP). Shorelines were obtained from the original provider and merged into a single file in order to conduct shoreline change analysis for the open-ocean and estuarine shorelines of Barnegat and Great Bay, New Jersey.
  1. How might this data set be cited?
    Smith, Kathryn E.L., and Terrano, Joseph F., 20170809, Shorelines for Barnegat and Great Bay, NJ: 1839 to 2012 (ver 1.1, December 2017): U.S. Geological Survey Data Release doi:10.5066/F75X275C, U.S. Geological Survey, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -74.577325105
    East_Bounding_Coordinate: -74.041075153
    North_Bounding_Coordinate: 40.081196268
    South_Bounding_Coordinate: 39.299815615
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date:
    Ending_Date: 01-Jan-2012
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polyline)
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set.
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 18
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -75.0
      Latitude_of_Projection_Origin: 0.0
      False_Easting: 500000.0
      False_Northing: 0.0
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.6096
      Ordinates (y-coordinates) are specified to the nearest 0.6096
      Planar coordinates are specified in Meter
      The horizontal datum used is D_North_American_1983.
      The ellipsoid used is GRS_1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.
  7. How does the data set describe geographic features?
    Attribute Table
    Table containing attribute information associated with the data-set. (Source: USGS)
    SHAPE_Leng
    System-generated attribute field, which was automatically created by ArcGIS to indicate the feature length. (Source: Esri)
    Range of values
    Minimum:0.002860
    Maximum:1111275.295987
    Units:Meters
    Shoreline
    Shoreline classification used to separate foreshore, backshore, mainland, and island shorelines. (Source: USGS)
    ValueDefinition
    ForeshoreShoreline located on the open-ocean side of the barrier island
    BackshoreShoreline located on the estuarine side of the barrier island
    MainlandMainland shoreline
    IslandShoreline representing small islands not connected to the foreshore or backshore of the barrier island or the mainland
    Date_
    Date imagery was collected for the New Jersey coast using the "MM/DD/YYYY HH:MM:SS" format. Additional information can be found in the "Year" and "Notes" fields. (Source: USGS)
    Range of values
    Minimum:01/01/1839 12:00:00AM
    Maximum:01/01/2012 12:00:00 AM
    Year
    4-digit year in which the imagery was collected. (Source: USGS)
    Range of values
    Minimum:1839
    Maximum:2012
    Units:Year
    Accuracy
    A value representing the shoreline position uncertainty associated with the imagery type, aerial imagery, which was used in the shoreline change statistical computations reported by: Hapke, C.J., Himmelstoss, E.A., Kratzmann, M.G., List, J.H., and Thieler, E.R., 2011, National assessment of shoreline change; historical shoreline change along the New England and Mid-Atlantic coasts: U.S. Geological Survey Open-File Report 2010-1118, 57 p., available at https://pubs.usgs.gov/of/2010/1118/. (Source: USGS)
    Range of values
    Minimum:5.5
    Maximum:11.7
    Units:meters
    Source
    An identifier for the source of the vector shoreline data (Source: USGS)
    ValueDefinition
    USGS_NOAAUSGS digitized from NOAA T-sheet data
    NOAANOAA digitized T-sheet data
    NJDEPData from New Jersey Department of Environmental Protection
    USGS_NJGINData digitized by USGS from New Jersey aerial photography
    Orig_Name
    The original name of the downloaded file (Source: USGS) A text string describing the name of the file as it was downloaded from the original source.
    Download
    The web link for the source of the original data (Source: USGS) A text string describing the web address, if available at time of publication.
    Notes
    Any data documentation notes (Source: USGS) A text string describing the notation.
    Id
    Automatically generated number (Source: AMBUR) Sequential, unique whole numbers that are automatically generated by AMBUR.
    SHORE_LOC
    Location of the shoreline (Source: AMBUR) No location data were entered as it was not required for these analyses.
    CLASS_1
    Shoreline classification (Source: AMBUR) No data was entered
    CLASS_2
    Shoreline classification (Source: AMBUR) No data was entered
    CLASS_3
    Shoreline classification (Source: AMBUR) No data was entered
    GROUP
    Shoreline classification (Source: AMBUR) No data was entered
    Entity_and_Attribute_Overview:
    The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the dataset. Some field were not used in the shoreline change analysis (SHORE_LOC, CLASS_1, etc) and remain blank ("no data" values are blank). These attributes were created by AMBUR, but were not required for this shoreline change analysis. However, the fields were not removed so that future analysts may populate this information or replicate these analyses.
    Entity_and_Attribute_Detail_Citation:
    The entity and attribute information was generated by the individual and/or agency identified as the originator of the data-set. Please review the rest of the metadata record for additional details and information. For details on AMBUR fields and analysis requirements, see: Jackson, C.W., Jr., 2010. Basic User Guide for the AMBUR package for R, version 1.0a. http://ambur.r-forge.r-project.org/user/ambur%20basic%20user%20guide%201_0a.pdf

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Kathryn E.L. Smith
    • Joseph F. Terrano
  2. Who also contributed to the data set?
    Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
  3. To whom should users address questions about the data?
    U.S. Geological Survey St Petersburg Coastal and Marine Science Center
    Attn: Kathryn E.L. Smith
    Ecologist
    600 4th Street South
    St. Petersburg, FL

    727-502-8073 (voice)
    727-502-8182 (FAX)
    kelsmith@usgs.gov

Why was the data set created?

The purpose of these data is for the calculation of shoreline change for estuarine and open-ocean shorelines of Barnegat and Great Bay, New Jersey.

How was the data set created?

  1. From what previous works were the data drawn?
    USGS 1839 (source 1 of 10)
    Terrano, J.F. and Smith, K.E.L, 20160718, Historical Shoreline for New Jersey (1839 to 1875): T-sheets and Vector Digital Data: U.S. Geological Survey, St Petersburg, FL.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NOAA 1932 (source 2 of 10)
    National Oceanic and Atmospheric Administration, 20020128, Vectorized Shoreline of New Jersey New York Pennsylvania (Project NJ-1932A) Derived from NOAA NOS Coastal Survey Maps Developed from 1932 Source Data: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, Maryland.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NOAA PH-59 (source 3 of 10)
    National Oceanic and Atmospheric Administration, 20020128, Vectorized Shoreline of New Jersey (Project PH-59) Derived from NOAA NOS Coastal Survey Maps Developed from 1950 Source Data: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, Maryland.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NOAA PH-72 (source 4 of 10)
    National Oceanic and Atmospheric Administration, 20011114, Vectorized Shoreline of New Jersey (Project PH-72) Derived from NOAA NOS Coastal Survey Maps Developed from 1950-1951 Source Data: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, Maryland.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NOAA PH-72a (source 5 of 10)
    National Oceanic and Atmospheric Administration, 20040506, Vectorized Shoreline of New Jersey (Project PH-72a) Derived from NOAA NOS Coastal Survey Maps Developed from 1951 Source Data: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, Maryland.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    USGS 1971 (source 6 of 10)
    Swiderski, D.C., Terrano, J.F., and Smith, K.E.L, 2016, Historical Shoreline for New Jersey (1971 to 1978): Vector Digital Data: U.S. Geological Survey, St Petersburg, Florida.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NJDEP 1986 (source 7 of 10)
    New Jersey Department of Environmental Protection (NJDEP), 1993, NJDEP Shoreline Typing for Coastlines of New Jersey Along Its Atlantic and Inland Bays: NJDEP, Trenton, NJ.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NJDEP 2002 (source 8 of 10)
    New Jersey Department of Environmental Protection (NJDEP), 20090116, NJDEP Coastline of New Jersey, Version 20090116: NJ Department of Environmental Protection (NJDEP), Trenton, NJ.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NJDEP 2007 (source 9 of 10)
    New Jersey Department of Environmental Protection (NJDEP), Office of Information Resources Management (OIRM), Bureau of Geographic Information and Analysis (BGIA), 20150501, Coastline of New Jersey, Edition 20150501 (Land_coastline_2007): NJ Department of Environmental Protection (NJDEP), Trenton, NJ.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
    NJDEP 2012 (source 10 of 10)
    New Jersey Department of Environmental Protection (NJDEP), Office of Information Resources Management (OIRM), Bureau of Geographic Information and Analysis (BGIA), 20150501, Coastline of New Jersey, Edition 20150501 (Land_coastline_2012): NJ Department of Environmental Protection (NJDEP), Trenton, NJ.

    Online Links:

    Type_of_Source_Media: digital data
    Source_Contribution: Historical shoreline data source
  2. How were the data generated, processed, and modified?
    Date: 2014 (process 1 of 2)
    Data sets were obtained from the data source. Data were edited in ArcGIS (version 10.3) so that only the desired shorelines were included in the final data set. For example, historical shorelines derived from T-sheets (See Source Citation: NOAA PH-59, NOAA PH-72, and NOAA PH-72a) included lines for map boundaries and features not designated as shorelines. These features were deleted. Shorelines for the barrier island foreshore (open ocean facing shorelines), barrier island backshore (protected estuarine shorelines) and mainland were separated into different vector data sets. Once shorelines were edited and checked, all dated shorelines were merged into a single data set. Attributes were edited to include information regarding the date and source of the original data. Compiled shorelines were processed using the AMBUR (Analyzing Moving Boundaries Using R) statistical package for R (version 3.3.2) tool to add required missing attributes. Data sources used in this process:
    • USGS 1938, NOAA 1932, NOAA PH-59, NOAA PH-72, NOAA PH-72a, NOAA 1932,NJDEP 1986, NJDEP 2002, NJDEP 2007, NJDEP 2012
    Date: 13-Oct-2020 (process 2 of 2)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    No formal attribute accuracy tests were conducted.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.
  3. How accurate are the heights or depths?
    A formal accuracy assessment of the vertical positional information in the dataset has either not been conducted, or is not applicable.
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented. Some dated shorelines do not have complete coverage over the entire study area (for example, 1839 shorelines were available for the estuarine shorelines of Long Beach Island, but not for the Barnegat Bay mainland region); however, this was acceptable as the analysis method accounts for the available dates only. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    Vector shoreline features and attributes were checked for completeness and accuracy.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey St Petersburg Coastal and Marine Science Center
    Attn: Kathryn E.L. Smith
    Ecologist
    600 4th Street South
    St. Petersburg, FL

    727-502-8073 (voice)
    727-502-8182 (FAX)
    kelsmith@usgs.gov
  2. What's the catalog number I need to order this data set? NJ_SLC_foreshore_v1.1.zip, NJ_SLC_backshore_v1.1.zip, NJ_SLC_mainland_v1.1.zip, NJ_SLC_islands_and_tribs_v1.1.zip
  3. What legal disclaimers am I supposed to read?
    This digital publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2020
Metadata author:
U.S. Geological Survey St Petersburg Coastal and Marine Science Center
Attn: Kathryn E.L. Smith
Ecologist
600 4th Street South
St. Petersburg, FL

727-502-8073 (voice)
727-502-8182 (FAX)
kelsmith@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/NJ_SLC_shorelines_metadata.faq.html>
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