WARD01: Sediment Data from off New Hampshire

Metadata also available as: OUTLINE - TEXT

Frequently-anticipated questions:

What does this data set describe?
    Title: WARD01: Sediment Data from off New Hampshire
    Abstract:
    The sediment data contained in this set were produced as part of the site description and monitoring phases of an aquaculture demonstration project. The site is located off the coast of New Hampshire in the Gulf of Maine.

  1. How should this data set be cited?

    Poppe, Lawrence J. , 2003, WARD01: Sediment Data from off New Hampshire: U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelley, J.T., Belknap, D.F., Ward, L.G., FitzGerald, D.M., and Larsen, P.F., 2003, Surficial Sediment Data from the Gulf of Maine, Georges Bank, and vicinity: a GIS Compilation: Open-File Report 03-001, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details:
    Data are released via CD-ROM media. This digital publication may also be available via the web at pubs.usgs.gov

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -70.701000
    East_Bounding_Coordinate: -70.536483
    North_Bounding_Coordinate: 43.076667
    South_Bounding_Coordinate: 42.918333

  3. What does it look like?

    ward01 (GIF)
    Image map showing extent and distribution of data layer coverage.

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

    Beginning_Date: 21-Oct-1997
    Ending_Date: 19-Jul-2002
    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):

      • Entity point (199)

    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 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?

    ward01.dbf
    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.

    PROJECTID
    Name used to designate this data set (Source: Compiler)

    ValueDefinition
    WARDETAL01 

    DATE
    Date sample was collected (Source: Scientist)

    Day/month/year when samples were collected

    STATION
    Name used to designate sampling locations (Source: Scientist)

    Station Names

    DEVICE
    Devie used to collect samples (Source: Scientist)

    Equipment used to collect samples

    T_DEPTH
    Top depth of sampling interval in cores (Source: Scientist)

    Range of values
    Minimum:2
    Maximum:92
    Units:centimeters
    Resolution:1

    B_DEPTH
    Bottom depth of sampling interval in cores (Source: Scientist)

    Range of values
    Minimum:4
    Maximum:94
    Units:centimeters
    Resolution:1

    DEPTH_M
    Water depth (Source: Scientist)

    Range of values
    Minimum:17
    Maximum:74
    Units:meters
    Resolution:0.1

    LATITUDE
    Latitude coordinate of sample location (Source: Scientist)

    Range of values
    Minimum:42.918333
    Maximum:43.076667
    Units:decimal degrees
    Resolution:0.000001

    LONGITUDE
    Longitude coordinate of sample location (Source: Scientist)

    Range of values
    Minimum:-70.701000
    Maximum:-70.536483
    Units:decimal degrees
    Resolution:0.000001

    FOLK_GSM
    Textural classification based on a gravel, sand, mud triangular diagram of Folk (1974) (Source: Scientist)

    Verbal sediment classification

    FOLK_SZC
    Textural classification based on a sand, silt, clay triangular diagram of Folk (1974) (Source: Scientist)

    Verbal sediment classification

    SHEPARD_SZ
    Textural classification based on a sand, silt, clay triangular diagram devised by Shepard (1954) (Source: Scientist)

    Verbal sediment classification

    SEDCLASS
    Textural classification based on a sand, silt, clay triangular diagram devised by Shepard (1954) and modified by Schlee (1973) (Source: Compiler)

    Verbal sediment classification

    GRAVEL
    Percentage of gravel in sample (Source: Scientist)

    Range of values
    Minimum:0
    Maximum:98
    Units:percent
    Resolution:1

    SAND
    Percentage of sand in sample (Source: Scientist)

    Range of values
    Minimum:1
    Maximum:93
    Units:percent
    Resolution:1

    MUD
    Silt plus clay in sample (Source: Scientist)

    Range of values
    Minimum:1
    Maximum:86
    Units:percent
    Resolution:1

    SILT
    Percentage of silt in sample (Source: Scientist)

    Range of values
    Minimum:2
    Maximum:60
    Units:percent
    Resolution:1

    CLAY
    Percentage of clay in sample (Source: Scientist)

    Range of values
    Minimum:1
    Maximum:30
    Units:percent
    Resolution:1

    MEAN
    Mean of the size distribution (Source: Scientist)

    Range of values
    Minimum:-4.03
    Maximum:6.77
    Units:phi
    Resolution:0.01

    STDEV
    Standard deviation of the size distribution (Source: Scientist)

    Range of values
    Minimum:0.56
    Maximum:4.28
    Units:phi
    Resolution:0.01

    SKEWNESS
    Skewness of the size distribution (Source: Scientist)

    Range of values
    Minimum:-2.29
    Maximum:0.89
    Resolution:0.01

    KURTOSIS
    Krtosis of the size distribution (Source: Scientist)

    Range of values
    Minimum:0.64
    Maximum:8.81
    Resolution:0.01

    LOI
    Percent weight loss on ignition (Source: Scientist)

    Range of values
    Minimum:0.7
    Maximum:5.3
    Units:percent
    Resolution:0.1

    COMMENTS
    Comments on sampling (Source: Scientist)

    Character string of width 54.

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?

    Please review the cross reference information for the original data set credit to Ward and others (2001), and Larry Poppe for creating this ArcView shapefile.

  3. To whom should users address questions about the data?

    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

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

Why was the data set created?
The purpose of this data layer is to make available a subset of a data set produced by Larry Ward and others at the University of New Hampshire. This data layer contains information for those samples with raw grain size data which are located on the inner continental shelf from off New Hampshire, Gulf of Maine.

How was the data set created?
  1. From what previous works were the data drawn?

    (source 1 of 1)
    Ward, L.G., Grizzle, R.E., Bub, F.L., Langan, R., Schnaittacher, G., and Dijkstra, J.A., 2001, University of New Hampshire Open Ocean Aquaculture Demonstration Project: Site Description and Environmental Monitoring, Report on Activities from Fall 1997 to Winter 2000: NOAA/UNH Cooperative Institute for New England Mariculture and Fisheries (CINEMAR) Report UNH CMB/JEL Report Series, Number 55, University of New Hampshire, Durham, NH.

    Type_of_Source_Media: Excel File

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

    Date: 15-Jan-2003 (process 1 of 1)
    Textural and lithologic data from off New Hampshire were reorganized in Excel and exported to an ASCII file. Stations and sediment data were imported from the ASCII text file to an ArcView table. The table was later converted to an event theme and saved as the final shapefile.

    Person who carried out this activity:

    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

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

    Data sources used in this process:
    • ward01.txt

    Data sources produced in this process:

    • ward01.shp
    • ward01.dbf
    • ward01.shx

How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?

    All attribute were checked by the compilers in a consistent manner.

  2. How accurate are the geographic locations?

    Navigation was done with differential GPS (+/- 10 m)

  3. How accurate are the heights or depths?

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

    Sample locations, grain-size data, textural classifications, and sample identifiers are provided for 199 records

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

    No additional checks for topological consistency were performed on this 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: None

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

    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

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

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

    Regional Mapping of Surficial Sediments: Gulf of Maine and Georges Bank, Aggregates and Habitats Projects, ward01.shp

  3. What legal disclaimers am I supposed to read?

    Although this data set has been used by the U.S. Geological Survey, 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.

  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 is available in ArcView shapefile format. The user must have 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 data.

Who wrote the metadata?
Dates:
Last modified: 16-Feb-2003

Metadata author:
Lawrence J. Poppe
U.S. Geological Survey
Geologist
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA

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

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Generated by mp version 2.7.3 on Sun Feb 16 11:18:41 2003

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