H12012_SEDDATA.SHP: Surficial Sediment Data Collected Within National Oceanic and Atmospheric Administration Survey H12012 During U.S. Geological Survey Cruises 2010-010-FA and 2010-015-FA Offshore in Northeastern Long Island Sound (Geographic, WGS84)

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

Frequently-anticipated questions:

What does this data set describe?

Title:
H12012_SEDDATA.SHP: Surficial Sediment Data Collected Within National Oceanic and Atmospheric Administration Survey H12012 During U.S. Geological Survey Cruises 2010-010-FA and 2010-015-FA Offshore in Northeastern Long Island Sound (Geographic, WGS84)
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Energy and Environmental Protection (CT DEEP), has produced detailed geologic maps of the coastal sea floor. Bathymetry, originally collected by NOAA for charting purposes, provides a fundamental framework for research and management activities in Long Island Sound, shows the terrain of the seabed, and provides information on sediment transport and benthic habitat. During April 2009 NOAA completed hydrographic survey H12012 offshore in the northeastern Sound, and during April 2010 and May 2010 bottom photographs and surficial sediment data were acquired as part of two ground-truth reconnaissance surveys of this area. Two interpretive data layers were derived from the multibeam echo-sounder and the ground-truth data used to verify them. For more information on the ground-truth surveys see: <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-010-FA> and <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-015-FA>
  1. How should this data set be cited?

    Poppe, Larry, 2013, H12012_SEDDATA.SHP: Surficial Sediment Data Collected Within National Oceanic and Atmospheric Administration Survey H12012 During U.S. Geological Survey Cruises 2010-010-FA and 2010-015-FA Offshore in Northeastern Long Island Sound (Geographic, WGS84): Open-File Report 2013-1060, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., McMullen, K.Y., Ackerman, S.D., and Glomb, K.A., 2013, Sea-floor geology and topography offshore in northeastern Long Island Sound: Open-File Report 2013-1060, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -72.400683
    East_Bounding_Coordinate: -72.165783
    North_Bounding_Coordinate: 41.258067
    South_Bounding_Coordinate: 41.200000

  3. What does it look like?

    <http://pubs.usgs.gov/of/2013/1060/data/sediment/h12012_seddata.gif> (GIF)
    Thumbnail image showing the locations of sediment data and lithologic descriptions collected during USGS cruises 2010-015-FA and 2010-010-FA offshore in northeastern Long Island Sound

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

    Beginning_Date: 17-Apr-2010
    Ending_Date: 26-May-2010
    Currentness_Reference:
    ground condition; there were actually three days of sediment data/lithologic description collection: 20100417, 20100525, and 20100526

  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 (21)

    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 D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

  7. How does the data set describe geographic features?

    h12012_seddata
    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.

    LABNO
    Unique identifier consisting of two characters and three numerics assigned during lab analysis (Source: Scientist)

    Character String of width 5

    STATIONID
    Sample name assigned in the field (Source: Scientist)

    Character String

    PROJECT
    Project name (Source: Scientist)

    SURVEY H12012

    CRUISEID
    Name or number of cruise during which the samples were collected in the format YYY-XXX-FA where YYY is the year, XXX is the cruise number within the year, and FA is the type of activity. (Source: Scientist)

    2010-015-FA or 2010-010-FA

    PRINCIPAL
    Name (initial and last name) of the principal investigator (Source: Scientist)

    LPOPPE

    LATITUDE
    Latitude coordinate of the sample location, WGS84 (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 41.2
    Maximum: 41.258067
    Units: Decimal degrees
    Resolution: 0.000001

    LONGITUDE
    Longitude coordinate of sample location, WGS84 (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: -72.400683
    Maximum: -72.165783
    Units: Decimal degrees
    Resolution: 0.000001

    DEPTH_M
    Water depth or sounding in meters. Handwritten at time station was occupied based on reading from the ship's fathometer corrected for draft, but not tide. A NODATA value of -9999 is used for those locations where depth was not acquired. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 24.6
    Maximum: 58.5
    Units: meters
    Resolution: 0.1

    T_DEPTH
    Top depth of the sample below sediment-water interface. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Value Definition
    0 Depth in sediment in centimeters

    B_DEPTH
    Bottom depth of the sample below the sediment-water interface. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Value Definition
    2 Depth in sediment in centimeters

    DEVICE
    Device used to collect sample (Source: USGS East Coast Sediment Texture Database data dictionary)

    MID-SIZED SEABOSS GRAB or SMALL SEABOSS GRAB

    MONTH
    Calendar month sample was collected (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 4
    Maximum: 5
    Units: months
    Resolution: 1

    DAY
    Day of month sample was collected (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 17
    Maximum: 26
    Units: days
    Resolution: 1

    YEAR
    Year sample was collected (Source: USGS East Coast Sediment Texture Database data dictionary)

    Value Definition
    2010 Year collected

    WEIGHT
    Weight of dry sample in grams. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 39.683
    Maximum: 199.55
    Units: grams
    Resolution: 0.0001

    ZGRAVEL
    Gravel content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.22
    Maximum: 59.42
    Units: percent
    Resolution: 0.01

    ZSAND
    Sand content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 39.63
    Maximum: 99.61
    Units: percent
    Resolution: 0.01

    ZSILT
    Silt content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.15
    Maximum: 5.44
    Units: percent
    Resolution: 0.01

    ZCLAY
    Clay content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.02
    Maximum: 1.68
    Units: percent
    Resolution: 0.01

    SEDCLASS
    Sediment description based on a rigorous definition. Where samples were not taken, the sediment class was estimated from bottom photography. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Value Definition
    SAND Sediment whose main phase is less than 2 mm, but great greater than or equal to 0.062 mm
    GRAVEL Sediment whose main phase is >2 mm. Where samples were not taken, this sediment class was estimated from the bottom photography.
    GRAVELLY SEDIMENT Sediment whose main phase is >2 mm, but with significant other sediment

    MEDIAN
    Middle point in the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: -4.05
    Maximum: 1.37
    Units: phi
    Resolution: 0.01

    MEAN
    Average value in the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: -1.8
    Maximum: 1.29
    Units: phi
    Resolution: 0.01

    STDEV
    Standard deviation of the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.47
    Maximum: 3.11
    Units: phi
    Resolution: 0.01

    SKEWNESS
    Deviation from symmetrical form of the grain-size distribution. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: -0.03
    Maximum: 1.43
    Units: no units
    Resolution: 0.01

    KURTOSIS
    Degree of curvature near the mode of the grain-size distribution. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: -1.28
    Maximum: 35.47
    Units: no units
    Resolution: 0.01

    PHI_11
    Weight percent of the sample in the 11 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0
    Maximum: 0.24
    Units: percent
    Resolution: 0.01

    PHI_10
    Weight percent of the sample in the 10 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.01
    Maximum: 0.55
    Units: percent
    Resolution: 0.01

    PHI_9
    Weight percent of the sample in the 9 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.01
    Maximum: 0.89
    Units: percent
    Resolution: 0.01

    PHI_8
    Weight percent of the sample in the 8 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.02
    Maximum: 1.16
    Units: percent
    Resolution: 0.01

    PHI_7
    Weight percent of the sample in the 7 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.03
    Maximum: 1.46
    Units: percent
    Resolution: 0.01

    PHI_6
    Weight percent of the sample in the 6 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.04
    Maximum: 1.45
    Units: percent
    Resolution: 0.01

    PHI_5
    Weight percent of the sample in the 5 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.06
    Maximum: 1.37
    Units: percent
    Resolution: 0.01

    PHI_4
    Weight percent of the sample in the 4 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.13
    Maximum: 4.44
    Units: percent
    Resolution: 0.01

    PHI_3
    Weight percent of the sample in the 3 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 1.04
    Maximum: 13.21
    Units: percent
    Resolution: 0.01

    PHI_2
    Weight percent of the sample in the 2 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 17.21
    Maximum: 75.4
    Units: percent
    Resolution: 0.01

    PHI_1
    Weight percent of the sample in the 1 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 1.1
    Maximum: 26.51
    Units: percent
    Resolution: 0.01

    PHI_0
    Weight percent of the sample in the 0 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.76
    Maximum: 15.37
    Units: percent
    Resolution: 0.01

    PHIM1
    Weight percent of the sample in the -1 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0.22
    Maximum: 15.14
    Units: percent
    Resolution: 0.01

    PHIM2
    Weight percent of the sample in the -2 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0
    Maximum: 26.24
    Units: percent
    Resolution: 0.01

    PHIM3
    Weight percent of the sample in the -3 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0
    Maximum: 29.07
    Units: percent
    Resolution: 0.01

    PHIM4
    Weight percent of the sample in the -4 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0
    Maximum: 52.39
    Units: percent
    Resolution: 0.01

    PHIM5
    Weight percent of the sample in the -5 phi fraction. A value of -9999 is a NODATA value entered where samples were not physically collected. (Source: USGS East Coast Sediment Texture Database data dictionary)

    Range of values
    Minimum: 0
    Maximum: 0
    Units: percent
    Resolution: 0.01

    Entity_and_Attribute_Overview:
    Textural data and visual descriptions produced from that portion of the samples and photography of USGS cruises 2010-015-FA and 2010-010-FA that fall within the study area are presented in this dataset. Visual descriptions of sediment texture were used in areas where samples could not be collected (e.g., boulder fields). These stations can be differentiated by the presence of the nodata value '-9999' in all of the numeric analytical fields. However, the navigation and station identifiers are known.

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?

    Larry 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 his data set is to release the locations, identifiers, grain-size data and(or) textural descriptions of surficial sediments collected at 21 stations on bathymetric data from offshore in northeastern Long Island Sound in Geographic, WGS84. These data can be used to provide information on surface geology and sedimentary processes.

How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Type_of_Source_Media: computer program

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

    Date: 2010 (process 1 of 3)
    Fifteen samples were collected with a Van Veen grab sampler (Blackwood and Parolski, 2001) equipped with a still and video camera. Visual descriptions were used for stations at 6 additional stations where samples could not be collected, such as where bedrock or boulders were present. Samples were analyzed in the sediment laboratory at the USGS Woods Hole Science Center. Coarse fraction determined by sieve; fine fraction determined by Coulter Counter. See Poppe, Williams, and Paskevich (2005) for analytical specifics.

    Person who carried out this activity:

    Larry 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 produced in this process:
    • h12012_seddata.txt

    Date: 2010 (process 2 of 3)
    An Esri shapefile was created in ArcView 3.3 from an ASCII comma-delimited file created by the laboratory's software. The file was added as an Event theme and subsequently converted to a shapefile. This includes verbal textural descriptions for the 6 stations where samples could not be collected.

    Person who carried out this activity:

    Larry 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:
    • h12012_seddata.txt

    Data sources produced in this process:

    • h12012_seddata.shp

    Date: 2013 (process 3 of 3)
    ArcGIS 9.2, ArcToolbox - Data management Tools - Projections and Transformations - Define Projection Tool was used to define the projection of the Esri shapefile as Geographic, WGS84, which creates the .prj file.

    Person who carried out this activity:

    Larry 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:
    • h12012_seddata.shp

    Data sources produced in this process:

    • h12012_seddata.prj

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

    Poppe, L.J., Williams, S.J., and Paskevich, V.F., 2005, USGS east-coast sediment analysis: procedures, database, and GIS data: Open-File Report 2005-1001, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Poppe, L.J., DiGiacomo-Cohen, M.L., Doran, E.F., Smith, S.M., Stewart, H.F., and Forfinski, N.A., 2007, Geologic interpretation and multibeam bathymetry of the sea floor in the vicinity of the Race, eastern Long Island Sound: Open-File Report 2007-1012, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Poppe, L.J., Denny, J.F., Williams, S.J., Moser, M.S., Forfinski, N.A., Stewart, H.F., and Doran, E.F., 2007, The geology of Six Mile Reef, eastern Long Island Sound: Open-File Report 2007-1191, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Blackwood, D.S., and Parolski, K.F., 2001, Seabed observation and sampling system: Sea Technology v. 42, no. 2, p.39-43.

    McMullen, K.Y., Poppe, L.J., Danforth, W.W., Blackwood, D.S., Schaer, J.D., Ostapenko, A.J., Glomb, K.A., and Doran, E.F., 2010, Surficial geology of the sea floor in Long Island Sound offshore of Plum Island, New York: Open-File Report 2010-1005, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Poppe, L.J., Hastings, M.E., DiGiacomo-Cohen, M.L., Manheim, F.T., and Mlodzinska, Z.J., 1998, Surficial sediment database: Open-File Report 98-502, Chapter 3, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 CD-ROM
    This is part of the following larger work.

    Poppe, L.J., and Polloni, C., 1998, Long Island Sound environmental studies: Open-File Report 98-502, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: CD-ROM.
    McMullen, K.Y., Poppe, L.J., Danforth, W.W., Blackwood, D.S., Schaer, J.D., Guberski, M.R., Wood, D.A., and Doran, E.F., 2011, Surficial geology of the sea floor in Long Island Sound offshore of Orient Point, New York: Open-File Report 2010-1100, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM
    Poppe, L.J., McMullen, K.Y., Ackerman, D.S., Blackwood, D.S., Irwin, B.J., Schaer, J.D., Lewit, P.G., and Doran, E.F., 2010, Sea-floor geology and character offshore of Rocky Point, New York: Open-File Report 2010-1007, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: Also on DVD-ROM
    McMullen, K.Y., Poppe, L.J., Danforth, W.W., Blackwood, D.S., Schaer, J.D., Glomb, K.A., and Doran, E.F., 2012, Sea-floor geology of Long Island Sound north of Duck Pond Point, New York: Open-File Report 2011-1149, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM
    Poppe, L.J., McMullen, K.Y., Ackerman, S.D., Blackwood, D.S., Schaer, J.D., Forrest, M.R., Ostapenko, A.J., and Doran, E.F., 2011, Sea-floor geology and topography offshore in Eastern Long Island Sound: Open-File Report 2010-1150, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM
    Poppe, L.J., McMullen, K.Y., Ackerman, S.D., Guberski, M.R., and Wood, D.A., 2013, Sea-floor character and geology off the entrance to the Connecticut River, northeastern Long Island Sound: Open-File Report 2012-1103, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM

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

  1. How well have the observations been checked?

    All attributes were checked in a consistent manner.

  2. How accurate are the geographic locations?

    Navigation was by differential GPS. Although GPS gave the ship's position rather than that of the SEABOSS, the antenna was located less than 5 m from the block, water depths were generally shallow, and scope of the cable minimal. Therefore, SEABOSS offset from the antenna was less than 10 m.

  3. How accurate are the heights or depths?

    Depths provided are in meters, uncorrected for tides, and based on readings from the ship's fathometer corrected for draft.

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

    All available grain-size data and lithologic descriptions from within the study area acquired during USGS cruises 2010-015-FA and 2010-010-FA are included in this data set. Stations range from 012-1 to 012-25, but there are no stations 012-2, 012-7, 012-9, and 012-12 due to weather.

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

    No additional checks for 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:
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 3)

    Larry 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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), nor the Connecticut Department of Energy and Environmental Protection (CT DEEP) nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS, NOAA, or the CT DEEP in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  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 data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com. The user must have software capable of uncompressing archived zip files, such as WinZip or Pkware. The Excel (2003) and TEXT versions of the data are also available in the WinZip file.

  1. Who distributes the data set? (Distributor 2 of 3)

    Larry 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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), nor the Connecticut Department of Energy and Environmental Protection (CT DEEP) nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS, NOAA, or the CT DEEP in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  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 Microsoft Excel spreadsheet format. The user must have software capable of reading or importing the Excel-formatted data file.

  1. Who distributes the data set? (Distributor 3 of 3)

    Larry 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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), nor the Connecticut Department of Energy and Environmental Protection (CT DEEP) nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS, NOAA, or the CT DEEP in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  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 as a generic ASCII formatted data file. The user must have a software program capable of reading the comma-delimited data file.

Who wrote the metadata?

Dates:
Last modified: 19-Apr-2013
Metadata author:
U.S. Geological Survey
c/o Larry Poppe
Geologist
384 Woods Hole Road
Woods Hole, MA 02543-1598

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)
Metadata extensions used:

Generated by mp version 2.8.25 on Fri Apr 19 08:08:49 2013