Location of cores collected during cruise R/V ATLANTIC TWIN 84-1 (AT-84-1) (MMS84)

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Frequently anticipated questions:

What does this data set describe?

Title:
Location of cores collected during cruise R/V ATLANTIC TWIN 84-1 (AT-84-1) (MMS84)
Abstract:
This GIS layer contains the station navigation for vibracores collected in Long Island Sound during 1984. These cores were originally collected to study nearshore geologic framework.
Supplemental_Information:
For more information about the field activity associated with this cruise, see https://cmgds.marine.usgs.gov/fan_info.php?fan=1984-016-FA.
  1. How might this data set be cited?
    DiGiacomo-Cohen(comp.), Mary, 2002, Location of cores collected during cruise R/V ATLANTIC TWIN 84-1 (AT-84-1) (MMS84): U.S. Geological Survey Open-File Report 2002-002, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center.

    Online Links:

    This is part of the following larger work.

    Poppe(comp.), Larry, and Paskevich(comp.), Valerie, 2002, Geological Framework data from Long Island Sound, 1981-1990: A Digital Data Release: U.S. Geological Survey Open-File Report 2002-002, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole, MA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -73.155838
    East_Bounding_Coordinate: -72.311668
    North_Bounding_Coordinate: 41.210831
    South_Bounding_Coordinate: 41.015831
  3. What does it look like?
    https://pubs.usgs.gov/of/2002/0002/htmldocs/images/browse/mms84.gif (GIF)
    location of MMS84 cores shown in relationship to Long Island Sound area
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 26-Sep-1984
    Ending_Date: 06-Oct-1984
    Currentness_Reference:
    ground condition
  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):
      • Point (13)
    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 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
  7. How does the data set describe geographic features?
    mms84
    shapefile attribute table (Source: ESRI)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI)
    ValueDefinition
    Pointpoint data
    Coordinates defining the features.
    CRUISEID
    Name given to cruise during which the cores were collected. (Source: assigned)
    ValueDefinition
    AT-84-1identifier assigned to cruise R/V ATLANTIC TWIN 84-1
    DATE
    Date when core was collected. (Source: Original logs generated aboard the Atlantic Twin 84-1 (AT84-1))
    ValueDefinition
    09/26/84Date core was collected recorded as ASCII string.
    09/27/84Date core was collected recorded as ASCII string.
    09/28/84Date core was collected recorded as ASCII string.
    10/05/84Date core was collected recorded as ASCII string.
    10/06/84Date core was collected recorded as ASCII string.
    COREID
    Numbers assigned to cores collected during cruise R/V Atlantic Twin (AT84-1) (Source: Ralph Lewis, CT DEP)
    ValueDefinition
    LISAT1 throught LISAT13ASCII character string (LISAT) followed by assigned sequential numeric integer of core
    LAT
    Latitude in decimal degrees of the navigation point (Source: Compiler)Frequency of measurement: As needed
    Range of values
    Minimum:41.015831
    Maximum:41.201831
    Units:decimal degrees
    Resolution:0.000001
    LON
    Longitude in decimal degrees of the navigation point (Source: Compiler)
    Range of values
    Minimum:-72.311668
    Maximum:-73.155838
    Units:decimal degrees
    Resolution:0.000001
    URL
    Link to the HTML page containing the text description of the associated core. URL path is relative to the ArcView project home. (Source: Processor) Relative path and filename containing the text description of the associated core.
    Entity_and_Attribute_Overview:
    This datalayer (navigation of the 1984 MMS cores from LIS) provides information location of vibracores used to interpret the regional geologic framework.
    Entity_and_Attribute_Detail_Citation:
    Geological Framework data from Long Island Sound, 1981-1990: a digital release

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Mary DiGiacomo-Cohen(comp.)
  2. Who also contributed to the data set?
    Ralph Lewis the original Connecticut project chief; and Mary DiGiacomo-Cohen and Valerie Paskevich for completing the Arc processing and creation of the GIS data layer.
  3. To whom should users address questions about the data?
    U.S. Geological Survey
    Attn: Larry Poppe
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
    Hours_of_Service: 0800-1600

Why was the data set created?

The purpose is to disseminate a digital version of a regional map showing the distribution of vibracores collected in Long Island Sound aboard the Atlantic Twin as part of a cooperative between New England coastal states and the Minerals Management Service. These cores, which were used to verify interpretations of high-resolution seismic-reflection profiles, can be used to provide useful information about the framework geology in this region.

How was the data set created?

  1. From what previous works were the data drawn?
    MMS core location navigation logs (source 1 of 1)
    Thomas(comp.), Hugo, 1985, The geologic framework of southern New England - vibracoring of Long Island Sound: Final Summary Report to the Minerals Management Service Parent Project 14-12-0001-30115, Connecticut DEP, Hartford.

    This is part of the following larger work.

    Lewis, Ralph, and Needell, Sally, 1987, Maps showing the stratigraphic framework and Quaternary geologic history of eastern Long Island Sound: U.S. Geological Survey Miscellaneous Field Study MF-1939-A, U.S. Geological Survey, Woods Hole Field Center.

    Online Links:

    Type_of_Source_Media: Vibracore cruise logs and report, navigated with LORAN-C
    Source_Scale_Denominator: 80,000
    Source_Contribution:
    Vibracores were colected as part of a cooperative program between MMS and New England coastal states. This dataset contains the locations of those cores collected in Long Island Sound.
  2. How were the data generated, processed, and modified?
    Date: 1991 (process 1 of 5)
    Navigation points from the original onboard logs were hand plotted on charts with Loran overlays. These overlays were then registered and digitized (using a Calcomp 9100 table and PC Arc/Info) to create point coverages with CT state plane coordinates. Attributes were added. Person who carried out this activity:
    Connecticut DEP
    Attn: Mary DiGiacomo-Cohen
    Long Island Sound Resource Center
    UCONN Avery Point
    1080 Shennecossett Road
    Groton, CT
    USA

    (860) 405-9015 (voice)
    lisrc@uconnvm.uconn.edu
    Data sources used in this process:
    • MMS core location navigation logs
    Data sources produced in this process:
    • R/V ATLANTIC TWIN Cores navigation coverage
    Date: 2001 (process 2 of 5)
    The navigation coverage was projected to Latitude/Longitude using Arc/Info. Decimal degree coordinates were ungenerated and joined to the attribute table. A shapefile was generated using ArcView. Person who carried out this activity:
    Connecticut DEP
    Attn: Mary DiGiacomo-Cohen
    Long Island Sound Recource Center
    UCONN Avery Point
    1080 Shennecossett Road
    Groton, CT
    USA

    (860)405-9015 (voice)
    lisrc@uconnvm.uconn.edu
    Data sources used in this process:
    • ATCores navigation coverage
    Data sources produced in this process:
    • ATCores navigation coverage
    Date: 03-Apr-2002 (process 3 of 5)
    The AT84-1 shapefile name was changed to be more descriptive within the USGS Open-File Report 02-002. Person who carried out this activity:
    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)
    vpaskevich@usgs.gov
    Data sources used in this process:
    • ATCores navigation coverage
    Data sources produced in this process:
    • mms84.dbf
    • mms84.shp
    • mms84.shx
    • mms84.sbn
    • mms84.sbx
    Date: 04-Apr-2002 (process 4 of 5)
    Added the attribute field URL to include the relative path name from the ArcView project home to the text description of the associated core. Person who carried out this activity:
    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)
    vpaskevich@usgs.gov
    Data sources used in this process:
    • mms84.dbf
    Data sources produced in this process:
    • mms84.dbf
    Date: 19-Aug-2024 (process 5 of 5)
    The metadata was edited to remove errors as well as update some information. Edits include updating the citation section with the DOI link and modifying the title, added the link to the field activity in the supplmental information section, added the USGS Thesaurus and ISO 19115 Topic Category thesaurus, added keywords section with USGS persistent identifier as theme keyword, added link to cross-reference, used a generic email address in metadata, replaced distribution liability with FSP statement. Other blank fields were deleted. The metadata date (20020404), but not the contact (except email and contact instructions) was updated. The metadata available from a harvester may supersede metadata available from the publication. Compare the metadata dates to determine which metadata file is most recent. (20210818). Replaced all links to data using woodshole.er with the appropriate working link. Fixed the browse graphic broken link. (20240819). 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?
    Thomas(comp.), Hugo, 1985, The geologic framework of southern New England: vibracoring of Long Island Sound: Final Summary Report to the Minerals management Service Parent Project 14-12-0001-30115, Connecticut DEP, Hartford, CT.

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

  1. How well have the observations been checked?
    All attribute data were recorded by the chief scientist and entered and checked by the compilers in a consistent manner.
  2. How accurate are the geographic locations?
    Navigation was done by Loran C. Typical Loran accuracy for LIS is about 100 m.
  3. How accurate are the heights or depths?
    Tides are less than 2 m
  4. Where are the gaps in the data? What is missing?
    Complete information is provided for all navigation points in the data set.
  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, Connecticut DEP, and the U.S. Minerals Management Service must be referenced as the originators 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
    Geologist
    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: mms84.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?
    • Availability in digital form:
      Data format: The seven ArcView shapefiles (mms84_1.dbf, mms84_1.shp, mms84_1.shx, mms84_1.sbn, mms84_1.sbx, mms84_1.avl and mms84_1.prj) comprising the navigation point data for the AT-84-1 vibracore cruise in Long Island Sound and an ASCII text version of the metadata file. in format ArcView Shapefile (version 3.2) Size: 1
      Network links: https://doi.org/10.3133/ofr022
      https://pubs.usgs.gov/of/2002/0002/data/cores/mms84/mms84.zip
      Media you can order: DVD (Density 4.7 Gbytes) (format UDF)
      Note: The user must have a system with a DVD drive capable of reading an UDF standard DVD-R disk. To browse the information contained on this disk, the user must also have a current version of WWW browser available. The user must also have the software installed on their computer system capable to unzip the archived file.
    • Cost to order the data: none

  5. Is there some other way to get the data?
    None
  6. What hardware or software do I need in order to use the data set?
    The AT84-1 navigation overlay 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: 19-Aug-2024
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 metadata contact 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/ofr2002-002/mms84_metadata.faq.html>
Generated by mp version 2.9.51 on Mon Sep 16 16:55:19 2024