Contoured Bathymetry for Lake Pontchartrain, Louisiana (PONTCONT)

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Frequently anticipated questions:

What does this data set describe?

Title:
Contoured Bathymetry for Lake Pontchartrain, Louisiana (PONTCONT)
Abstract:
This is the contoured bathymetry for Lake Pontchartrain created for USGS Professional Paper 1634 by Laura Hayes using Vertical Mapper.
Supplemental_Information:
This data layer was obtained from USGS Professional Paper 1634 (2002) with no associated metadata. Metadata has been created for use of the data layer in this publication.
  1. How might this data set be cited?
    U.S. Geological Survey, Hayes, Laura, and Reid, Jamey, 2002, Contoured Bathymetry for Lake Pontchartrain, Louisiana (PONTCONT): Digital Data Series 79, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Williams, S.J., Reid, J.M., Cross, V., and Polloni, C., 2002, Coastal Erosion and Wetland Change in Louisiana: Selected USGS Products: Digital Data Series 79, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -90.430200
    East_Bounding_Coordinate: -89.734154
    North_Bounding_Coordinate: 30.387504
    South_Bounding_Coordinate: 30.020650
  3. What does it look like?
    http://pubs.usgs.gov/dds/dds79/HTMLDOCS/Browsefiles/browsegraphics/pontcont.jpg (JPEG)
    Contoured Bathymetry for Lake Pontchartrain
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2002
    Currentness_Reference:
    publication date
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  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. It contains the following vector data types (SDTS terminology):
      • String (626)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
  7. How does the data set describe geographic features?
    pontcont
    Shapefile Attribute Table (Source: ESRI)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    PONTCONT_I
    Information unavailable from original metadata. (Source: Information unavailable from original metadata.) Information unavailable from original metadata.
    DEPTH_M
    Depth, meters (Source: Information unavailable from original metadata.) Information unavailable from original metadata.
    DEPTH_FT
    Depth, feet (Source: Information unavailable from original metadata.) Information unavailable from original metadata.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
    • Laura Hayes
    • Jamey Reid
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Jamey M. Reid
    U.S. Geological Survey
    IT Specialist (Data Management)
    384 Woods Hole Road
    Woods Hole, MA
    USA

    508-548-8700 x2204 (voice)
    508-457-2310 (FAX)
    jreid@usgs.gov

Why was the data set created?

This data set was created in order to serve as part of the background map layers for data visualization in the sediment database section of USGS Professional Paper 1634.

How was the data set created?

  1. From what previous works were the data drawn?
    NOAA Navigation Chart 11369 (source 1 of 1)
    NOAA, Unknown, NOAA Navigation Chart 11369.

    Type_of_Source_Media: chart
    Source_Contribution: Sounding values in meters and feet
  2. How were the data generated, processed, and modified?
    Date: Unknown (process 1 of 8)
    Lake Maurepas bathymetry (soundings in meters and feet) was digitized using NOAA navigation chart 11369. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    508-457-2310 (FAX)
    lhayes@usgs.gov
    Contact_Instructions:
    This work was completed while at the USGS, Woods Hole Field Center. Laura is now at USGS, Water Resources Division in Pembroke, New Hampshire.
    Data sources used in this process:
    • NOAA navigation chart 11369
    Data sources produced in this process:
    • pontbath.tab
    Date: Unknown (process 2 of 8)
    Maurepas bathymetry was contoured using Vertical Mapper. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    508-457-2310 (FAX)
    lhayes@usgs.gov
    Contact_Instructions:
    This work was completed while at the USGS, Woods Hole Field Center. Laura is now at USGS, Water Resources Division in Pembroke, New Hampshire.
    Data sources used in this process:
    • pontbath.tab
    Data sources produced in this process:
    • pontcont.tab
    Date: Unknown (process 3 of 8)
    This file was generated as a .tab file in MapInfo and then exported to MapInfo Interchange Format (.mif and .mid). Person who carried out this activity:
    U.S. Geological Survey
    Attn: Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    508-457-2310 (FAX)
    lhayes@usgs.gov
    Contact_Instructions:
    This work was completed while at the USGS, Woods Hole Field Center. Laura is now at USGS, Water Resources Division in Pembroke, New Hampshire.
    Data sources used in this process:
    • pontcont.tab
    Data sources produced in this process:
    • pontcont.mif
    • pontcont.mid
    Date: Unknown (process 4 of 8)
    The MapInfo Interchange Format (.mif and .mid) file was converted to an ArcView shapefile (.shp). Person who carried out this activity:
    U.S. Geological Survey
    Attn: Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA
    USA

    508-548-8700 (voice)
    508-457-2310 (FAX)
    lhayes@usgs.gov
    Contact_Instructions:
    This work was completed while at the USGS, Woods Hole Field Center. Laura is now at USGS, Water Resources Division in Pembroke, New Hampshire.
    Data sources used in this process:
    • pontcont.mif
    • pontcont.mid
    Data sources produced in this process:
    • pontcont.shp
    • pontcont.shx
    • pontcont.dbf
    Date: 09-Nov-2016 (process 5 of 8)
    Edits to the metadata were made to fix any errors that MP v 2.9.34 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added the online link to the data in the distribution section. Added an online link to the cross-reference. The source information was incomplete and had to be modified to meet the standard. Minor fixes to the attribute format for some attributes were needed. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. 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
    Date: 20-Jul-2018 (process 6 of 8)
    USGS Thesaurus keywords added to the keyword section. 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
    Date: 15-Nov-2019 (process 7 of 8)
    Crossref DOI link was added as the first link in the metadata. 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
    Date: 08-Sep-2020 (process 8 of 8)
    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?
    Frank Manheim, editor, and Laura Hayes, editor, 2002, Lake Pontchartrain Basin: Bottom Sediments and Related Environmental Resources: USGS Professional Paper 1634, U.S. Geological Survey, Reston, VA.

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

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Information unavailable from original metadata.
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on the data

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 must be referenced as the orignators of the dataset in any future products derived from these data. Bathymetry is not to be used for navigation purposes.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey
    Attn: Jamey M. Reid
    IT Specialist (Data Management)
    Woods Hole Science Center
    Woods Hole, MA
    USA

    508-548-8700 x2204 (voice)
    508-457-2310 (FAX)
    jreid@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, express or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.

Who wrote the metadata?

Dates:
Last modified: 07-Jul-2022
Metadata author:
U.S. Geological Survey
Attn: Jamey M. Reid
IT Specialist (Data Management)
Woods Hole Science Center
Woods Hole, MA
USA

508-548-8700 x2204 (voice)
508-457-2310 (FAX)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/data_series/DDS-79/pontcont.shp.faq.html>
Generated by mp version 2.9.51 on Thu Jul 14 11:37:39 2022