Location of LIS samples with Total Organic Carbon (TOC)

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Frequently anticipated questions:

What does this data set describe?

Title: Location of LIS samples with Total Organic Carbon (TOC)
Abstract:
This GIS layer contains a point overlay showing the location of samples with Total Organic Carbon (TOC). This layer shows the distribution of samples used in the creation of the TOC polygon layer, listoc.
  1. How might this data set be cited?
    Poppe, Lawrence J., 20000625, Location of LIS samples with Total Organic Carbon (TOC): Open-File Report 2000-304, U.S. Geological Survey, Woods Hole Field Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details:
    Lawrence J. Poppe was the editor of the individual dataset. The accompanying chapter in the OFR includes the authors Harley J. Knebel, Zofia J. Mlodzinska, and Barbara A. Seekins.
    This is part of the following larger work.

    Paskevich, Valerie, and Poppe, Larry, 2000, Georeferenced Sea-Floor Mapping and Bottom Photography in Long Island Sound: U. S. Geological Survey Open-File Report OFR 00-304, U. S. Geological Survey, Woods Hole Field Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details:
    Valerie F. Paskevich and Lawrenc J. Poppe are the editors of the publication which contains 12 individual chapters with various authors.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -73.7482
    East_Bounding_Coordinate: -72.1260
    North_Bounding_Coordinate: 41.3439
    South_Bounding_Coordinate: 40.8367
  3. What does it look like?
    http://pubs.usgs.gov/of/of00-304/htmldocs/images/browse/tocpnt1.gif (GIF)
    image showing the extent of the GIS layer and the distribution of Long Island Sound samples with Total Organic Carbon (TOC)
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 01-Jun-1992
    Ending_Date: 31-Mar-1998
    Currentness_Reference:
    Ground Condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: point shapefile
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (515)
    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: 0.99960
      Longitude_of_Central_Meridian: -075.000000
      Latitude_of_Projection_Origin: +00.000000
      False_Easting: 500000
      False_Northing: 0
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 5000
      Ordinates (y-coordinates) are specified to the nearest 5000
      Planar coordinates are specified in Meters
      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS80.
      The semi-major axis of the ellipsoid used is 6378137.00.
      The flattening of the ellipsoid used is 1/298.257222101.
  7. How does the data set describe geographic features?
    tocpnt1.dbf
    Shapefile attribute file (Source: ESRI)
    Id
    Id is an ArcView internal parameter. (Source: User Defined)
    Range of values
    Minimum:0
    Maximum:0
    Entity_and_Attribute_Overview:
    This data layer (total organic carbon sampling stations) shows the locations from which these data are available.
    Entity_and_Attribute_Detail_Citation:
    Distribution of surficial sediment in Long Island Sound and adjacent waters: texture and total organic carbon, by Poppe and others

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Lawrence J. Poppe
  2. Who also contributed to the data set?
    M. Moffett and Sarah Pratt, the analysts who performed the samples preparation.
  3. To whom should users address questions about the data?
    U. S. Geological Survey
    Attn: Larry Poppe
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    lpoppe@usgs.gov

Why was the data set created?

The purpose of this data layer is to disseminate a digital version of the map showing the locations of surficial total organic carbon sampling stations.

How was the data set created?

  1. From what previous works were the data drawn?
    LISsamples (source 1 of 1)
    Poppe(comp.), Larry, Unknown, LIS surficial sediment samples collected from 6/1992 - 3/1998.

    Type_of_Source_Media: surficial samples
    Source_Contribution:
    samples were analyzed in the laboratory to calculate available Total Organic Carbon (TOC)
  2. How were the data generated, processed, and modified?
    Date: Unknown (process 1 of 2)
    Data (consisting of the sample station navigation in decimal degrees) were imported as a text file. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Larry Poppe
    384 Woods Hole road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    lpoppe@usgs.gov
    Data sources used in this process:
    • LISsamples
    Data sources produced in this process:
    • LIS grain-size data
    Date: 26-Jun-2023 (process 2 of 2)
    Edits to the metadata were made to fix any errors that MP v 2.9.50 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. Additional small edits including (but not limited to) such as adding the edition element were perfomed on the metadata. Author names were edited to remove "ed." and "comp". Added links to access the data including the DOI link. Added USGS Thesaurus keywords. Added keywords section with USGS persistent identifier as theme keyword (PID). Fixed the ellipsoid name to agree with the datum. Fixed the denominator of flattening ratio. Updated the distribution liability. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. A generic email in the metadata contact was used, along with adding contact instructions. 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. (20230626) Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Poppe(ed.), L. J., Knebel, H. J., Mlodzinska, Z. J., Hastings, M. E., and Seekins, B., Unknown, The distribution of surficial sediment in Long Island Sound and adjacent waters: texture and total organic carbon: Journal of Coastal Research in press.

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

  1. How well have the observations been checked?
    Navigation for sample stations was done with differential GPS. Accuracy is assumed to be +/-10m.
  2. How accurate are the geographic locations?
    Navigation was by Differential GPS, which is accurate to less than 10 m; typical accuracy for differential GPS navigation.
  3. How accurate are the heights or depths?
    Vertical accuracy is +/-2m. Tidal range in LIS is less than 2 m
  4. Where are the gaps in the data? What is missing?
    none
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on this data set.

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 originator of the dataset in any future products or research derived from these data.
Although this derived data set and its lineage dataset have been used by the USGS, no warranty, expressed 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.
  1. Who distributes the data set? (Distributor 1 of 1)
    U. S. Geological Survey
    Attn: Larry Poppe
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508)548-8700 x2314 (voice)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Long Island Sound: tocpnt1.shp
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
  5. Is there some other way to get the data?
    Not available
  6. What hardware or software do I need in order to use the data set?
    The tocpnt1 layer is available in an ArcView shapefile format. The user must have ESRI's ArcView 3.0 or greater software to read and process the data file. In lieu of Arcview, the user may utilize another GIS application package capable of importing the data.

Who wrote the metadata?

Dates:
Last modified: 26-Jun-2023
Metadata author:
Valerie Paskevich
U. S. Geological Survey
computer specialist
384 Woods Hole Road
Woods Hole, MA
USA

(508) 548-8700 x2281 (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 person is no longer with the USGS.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2000-304/tocpnt1.faq.html>
Generated by mp version 2.9.51 on Mon Jun 26 11:24:41 2023