NYNJ_FAC: usSEABED FACies data for the New York-New Jersey Region

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Frequently-anticipated questions:


What does this data set describe?

Title:
NYNJ_FAC: usSEABED FACies data for the New York-New Jersey Region
Abstract:
The facies data layer (FAC) is a point coverage of known sediment samplings, inspections, and probings from the usSEABED data collection and integrated using the software system dbSEABED.

The facies data layer (FAC) represents concatenated information about components (minerals and rock type), genesis (igneous, metamorphic, carbonate, terrigenous), and other appropriate groupings of information about the seafloor. The facies data are parsed from written descriptions from cores, grabs, photographs, and videos, and may apply only to a subsample as denoted by the Top, Bottom, and SamplePhase fields.

Lack of values in a defined facies field does not necessarily imply lack of the components defining that field, but may imply a lack of data for that field.

Supplemental_Information:
This data layer is a subset of the original usSEABED East Coast data release version 1.0, and is geographically clipped to the greater New York-New Jersey geographical region.
  1. How should this data set be cited?

    U.S. Geological Survey, 2006, NYNJ_FAC: usSEABED FACies data for the New York-New Jersey Region: Open-File Report 2006-1046, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Arsenault, M.A., Reid, J.A., Jenkins, C.J., Williams, S.J., Poppe, L.J., and Reid, J.M., 2006, Surficial Sediment Character of the New York-New Jersey Offshore Continental Shelf Region: a GIS Compilation: Open-File Report 2006-1046, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -75.500000
    East_Bounding_Coordinate: -71.000000
    North_Bounding_Coordinate: 41.706940
    South_Bounding_Coordinate: 38.000000

  3. What does it look like?

    <http://pubs.usgs.gov/of/2006/1046/browseimages/nynj_fac.jpg> (JPEG)
    Image map showing extent of data layer coverage

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2006
    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):

      • Entity point (3064)

    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 0.000000. Longitudes are given to the nearest 0.000000. 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?

    NYNJ_FAC
    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.

    LATITUDE
    Latitude coordinate of sample location (Source: source data)

    Range of values
    Units:decimal degrees

    LONGITUDE
    Longitude coordinate of sample location (Source: source data)

    Range of values
    Units:decimal degrees

    WATERDEPTH
    measured water depth for site (usually uncorrected) (Source: source data)

    Range of values
    Units:meters

    SAMPLETOP
    measured subbottom depth information for each point sample

    Range of values
    Units:meters

    SAMPLEBASE
    measured subbottom depth information for each point sample

    Range of values
    Units:meters

    DATASETKEY
    Unique sequential numeric key to SRC file (Source: dbSEABED processing software)

    SITEKEY
    Unique sequential numeric key to SRC file (Source: dbSEABED processing software)

    SAMPLEKEY
    Unique sequential numeric key to SRC file (Source: dbSEABED processing software)

    SAMPLER
    Equipment used to collect samples (Source: Original data source)

    CARBONATE
    Carbonate, including finest to coarsest sampled fractions

    SAMPLEPHAS
    Sample Phase; records whether the results are for the whole, bulk sediment or just to some special part (Source: dbSEABED processing software)

    Output as a word-based description that may involve numerics. This field will need to be selected against when GIS mappings of the bulk sediment characters are being mapped. Only blank entries should be included in such a mapping.

    SITE

    DATATYPE

    TERRIGENOU

    IGNEOUS

    VOLCANIC

    METAMORPHI

    MINERALIZE

    AUTHFEMN

    OOZE

    CARBON

    GEOCHEMSIG

    FORAMS

    OTHERCALCP

    SILCPELAG

    SHELL

    CORAL

    HARDPLANT

    Entity_and_Attribute_Overview:
    Values of -99 for any field are indications that there was no data available.


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?

    Matthew A. Arsenault
    U.S. Geological Survey
    IT Specialist (Data Management)
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2354 (voice)
    (508) 457-2310 (FAX)
    marsenault@usgs.gov


Why was the data set created?

To build a digital mapping of the character of the seabed on regional, national and global scales. These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    U.S. Geological Survey, and Colorado, University of , 2005, ATL_FAC: usSEABED facies data for the entire U.S. Atlantic Coast: Data Series 118, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Reid, J.M., Reid, J.A., Jenkins, C.J., Hastings, M.E., Williams, S.J., and Poppe, L.J., 2005, usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release: Data Series 118, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    Type_of_Source_Media: online
    Source_Scale_Denominator:
    See separate listing contained within the Larger_Work_Citation of the Source_Citation for specific sources and associated metadata
    Source_Contribution:
    point locations, descriptions and analytical data on many different types of sediment and rock materials and benthos for the entire U.S. Atlantic coast

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

    Date: 2006 (process 1 of 1)
    The data contained in this report were clipped from the larger citation using the 'Select' tool in the ArcToolbox, and selected using the following criteria: "LATITUDE" >=38 and "LATITUDE" <=42 and "LONGITUDE" <=-71 and "LONGITUDE" >=-75.5

    Person who carried out this activity:

    Matthew A. Arsenault
    USGS
    IT Specialist (Data Management)
    384 Woods Hole Rd, Woods Hole Science Center
    Woods Hole, MA 02543-1598
    USA

    508-548-8700 x2354 (voice)
    508-457-2310 (FAX)
    marsenault@usgs.gov

    Data sources used in this process:
    • ATL_FAC

    Data sources produced in this process:

    • NYNJ_FAC

  3. What similar or related data should the user be aware of?

    Reid, J.M., Reid, J.A., Jenkins, C.J., Hastings, M.E., Williams, S.J., and Poppe, L.J., 2005, usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release, version 1.0: Data Series 118, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:


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

  1. How well have the observations been checked?

    Accuracy of each attribute is dependent on the accuracy of the lineage data.

  2. How accurate are the geographic locations?

    Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources and may vary widely (e.g., from 0.005km (differential GPS) in more recent surveys to greater than 2 km based on radar, Loran, or dead reckoning in older surveys.) Users of the data should use their own criteria for assessing the accuracy of the locations.

  3. How accurate are the heights or depths?

    Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources. Users of the data should use their own criteria for assessing the accuracy of the locations.

  4. Where are the gaps in the data? What is missing?

    Additional useable data may exist in this area; the authors appreciate any information and leads.

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

    Data in usSEABED are based on the observations and analyses of others, filtered through a unifying and mining software. Each source report varies in type of information/data recorded and format. Only those observations that are recorded can be filtered and mined; only presence (not absence) or information can be noted.


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:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

  1. Who distributes the data set? (Distributor 1 of 1)

    Matthew A. Arsenault
    U.S. Geological Survey
    IT Specialist (Data Management)
    384 Woods Hole Rd.
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2354 (voice)
    (508) 457-2310 (FAX)
    marsenault@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, 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. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    These 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 the 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: 01-Jun-2006
Last Reviewed: 12-May-2005
Metadata author:
Matthew A. Arsenault
U.S. Geological Survey
IT Specialist (Data Management)
384 Woods Hole Rd.
Woods Hole, MA 02543-1598
USA

(508) 548-8700 x2354 (voice)
(508) 457-2310 (FAX)
marsenault@usgs.gov

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


Generated by mp version 2.8.6 on Thu Jun 01 13:49:29 2006