Countoured Bathymetry for Lake Maurepas, Louisiana

Metadata also available as - [Outline] - [Parseable text]

Frequently-anticipated questions:

What does this data set describe?
    Title: Countoured Bathymetry for Lake Maurepas, Louisiana
    Abstract:
    This is the contoured bathymetry for Lake Maurepas 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 should this data set be cited?

    U.S. Geological Survey, Hayes, Laura, and Reid, Jamey, 2003, Countoured Bathymetry for Lake Maurepas, Louisiana: Digital Data Series.

    Online Links:

    This is part of the following larger work.

    Williams, S.J., Reid, J.M., Cross, V., and Polloni, C., 2003, Coastal Erosion and Wetland Change in Louisiana: Selected USGS Products: Digital Data Series, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -90.593951
    East_Bounding_Coordinate: -90.387551
    North_Bounding_Coordinate: 30.342339
    South_Bounding_Coordinate: 30.171507

  3. What does it look like?

  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 (367)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. 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?

    maurcont

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    MAURCONT_I

    DEPTH_M
    Depth, meters

    DEPTH_FT
    Depth, feet

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  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)

    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)
    Type_of_Source_Media: chart
    Source_Contribution: Sounding values in meters and feet

  2. How were the data generated, processed, and modified?

    (process 1 of 5)
    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
    c/o Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA 02543-1598
    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:

    • maurbath.tab

    (process 2 of 5)
    Maurepas bathymetry was contoured using Vertical Mapper.

    Person who carried out this activity:

    Laura Hayes
    U.S. Geological Survey
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA 02543-1598
    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:
    • maurbath.tab

    Data sources produced in this process:

    • maurcont.tab

    (process 3 of 5)
    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:

    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:
    • maurcont.tab

    Data sources produced in this process:

    • maurcont.mif
    • maurcont.mid

    (process 4 of 5)
    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
    c/o Laura Hayes
    Cartographer
    Woods Hole Field Center
    Woods Hole, MA 02543-1598
    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:
    • maurcont.mif
    • maurcont.mid

    Data sources produced in this process:

    • maurcont.shp
    • maurcont.shx
    • maurcont.dbf

    (process 5 of 5)
    Metadata for this data layer was written.

    Person who carried out this activity:

    Jamey M. Reid
    U.S. Geological Survey
    IT Specialist (Data Management)
    Woods Hole Field Center
    Woods Hole, MA 02543-1598
    USA

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

    Data sources used in this process:
    • maurcont.shp

    Data sources produced in this process:

    • maurcont.txt
    • maurcont.html
    • maurcont_faq.html

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?

  5. How consistent are the relationships among the observations, including topology?

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.

  1. Who distributes the data set?[Distributor contact information not provided.]

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?
Dates:
Last modified: 22-Jul-2003

Metadata author:
U.S. Geological Survey
c/o Jamey M. Reid
IT Specialist (Data Management)
USGS, Woods Hole Field Center
Woods Hole, MA 02543-1598
USA

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

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

Generated by mp version 2.7.3 on Tue Jul 22 15:54:54 2003