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RAFA04011_BOTPHOTOS.SHP: Location of Sea-Floor Photographs acquired during USGS cruise 04011 (RAFA04011) from off Eastern Cape Cod, Massachusetts

Metadata also available as: OUTLINE | TEXT

Frequently-anticipated questions:

What does this data set describe?

Title:
RAFA04011_BOTPHOTOS.SHP: Location of Sea-Floor Photographs acquired during USGS cruise 04011 (RAFA04011) from off Eastern Cape Cod, Massachusetts
Abstract:
This data set includes the locations and identifiers of 240 bottom photographs collected at 89 stations on topographic and backscatter data of the sea floor offshore east of Cape Cod, Massachusetts. The photos were collected with a modified Van Veen grab modified to carry still and video camera systems (small SEABOSS) during USGS survey 04011, conducted May 25- June 4, 2004.
  1. How should this data set be cited?

    Poppe, L.J., 2006, RAFA04011_BOTPHOTOS.SHP: Location of Sea-Floor Photographs acquired during USGS cruise 04011 (RAFA04011) from off Eastern Cape Cod, Massachusetts: Open-File Report 2005-1048, 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.

    Poppe, L.J., Paskevich, V.F., Butman, B., Ackerman, S.D., Danforth, W.W., Foster, D.S., and Blackwood, D.S., 2005, Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts: Open-File Report 2005-1048, 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: -70.126380
    East_Bounding_Coordinate: -69.848550
    North_Bounding_Coordinate: 42.089030
    South_Bounding_Coordinate: 41.623450

  3. What does it look like?

    <http://pubs.usgs.gov/of/2005/1048/data/botphotos/rafa04011_botphotos-thumb.gif> (GIF)
    Thumbnail image showing location and extent of bottom photo locations off of Eastern Cape Cod, MA
    <http://pubs.usgs.gov/of/2005/1048/data/botphotos/rafa04011_botphotos-thumb.gif> (GIF)
    Image map showing location and extent of bottom photo locations off of Eastern Cape Cod, MA

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

    Beginning_Date: 25-May-2004
    Ending_Date: 04-Jun-2004
    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 (240)

    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 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    rafa04011_botphotos
    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.

    PHOTO
    Sequential identifier assigned to each photograph (Source: USGS)

    Characters and numerics identifying photos

    STATION
    Sequential identifier assigned to each sample site (Source: USGS)

    Characters and numerics identifying sampling sites

    DATE
    Month, day, and year when the photograph was taken (Source: USGS)

    Character String: Months, days, and year as mm/dd/yyyy

    TIME__GMT_
    Time in Greenwich Meridian Time when the photograph was taken (Source: USGS)

    Character String containing times with an A (for am) or P (for pm)

    TIME__UTC_
    Time in military time when the photograph was taken (Source: USGS)

    Character String containing hours and minutes separated by a colon (hh:mm)

    LATITUDE
    Latitude coordinate of photographic station (Source: USGS)

    Range of values
    Minimum:41.62345
    Maximum:42.08903
    Units:Decimal degrees
    Resolution:0.00001

    LONGITUDE
    Longitude coordinate of photographic station (Source: USGS)

    Range of values
    Minimum:-70.12638
    Maximum:-69.84855
    Units:Decimal degrees
    Resolution:0.00001

    DEVICE
    Equipment used to collect the photograph (Source: USGS)

    ValueDefinition
    SMALL SEABOSSUSGS Small Seabed Observation and Sampling System (SEABOSS)

    CRUISEID
    Cruise identifier (Source: USGS)

    ValueDefinition
    RAFA04011Field activity serial number assigned by Woods Hole Science Center data archives

    PROJECTID
    Name of project for which the photographs were taken. (Source: USGS)

    ValueDefinition
    CAPE COD MULITBEAMProject name assigned by Woods Hole Science Center data archives

    PRINCIPAL
    Name of Chief scientist during the cruise (Source: USGS)

    ValueDefinition
    LPOPPELarry Poppe

    IMAGE
    Relative path to bottom photograph browse image. (Source: USGS)

    Character string

    URL
    Relative path to HTML document containing thumbnail images of bottom photographs for a given station. (Source: USGS)

    Character string

    Entity_and_Attribute_Overview:
    Data layer attributes include date, time and position photograph was acquired; station and photograph identifiers; relative path to individual browse versions of the bottom photograph and path to HTML document containing thumbnail versions of the available station photographs.

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?

    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?

This data set was produced to ground-truth (verify) topography and backscatter intensity of the sea floor offshore of Cape Cod, Massachusetts. The acoustic data were collected with a multibeam sea floor mapping system during USGS survey 98015, conducted November 9 - 25, 1998.

How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)

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

    Date: Jul-2004 (process 1 of 2)
    Navigation and time recorded on videotape were used to identify and register the still photographs. These data and identifiers were manually entered into spreadsheet software. Shapefiles were created in ArcView from the ASCII comma-delimited files exported from the spreadsheet application.

    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:
    • rafa04011_botphotos.xls

    Data sources produced in this process:

    • rafa04011_botphotos.shp
    • rafa04011_botphotos.dbf
    • rafa04011_botphotos.shx

    Date: 03-Feb-2006 (process 2 of 2)
    Two fields, IMAGE and URL, were added to the dataset. The IMAGE field contains the relative path to the browse version of the individual bottom photograph. The URL field contains the relative path to the HTML document containing the thumbnail images of the bottom photograph for a given station.

    Person who carried out this activity:

    Valerie Paskevich
    U.S. Geological Survey
    GIS Coordinator
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2281 (voice)
    (508) 457-2310 (FAX)
    vpaskevich@usgs.gov

    Data sources used in this process:
    • rafa04011_botphotos.dbf
    • rafa04011_botphotos.shp
    • rafa04011_botphotos.shx

    Data sources produced in this process:

    • rafa04011_botphotos.dbf
    • rafa04011_botphotos.shp
    • rafa04011_botphotos.shx

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

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; positional accuracy to less than 10 m.

  3. How accurate are the heights or depths?

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

    Locations of all still photographs of the sea floor collected during the R/V RAFAEL cruise 04011 were included in this data set.

  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:
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)

    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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although all data 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.

    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.

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

    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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although all data 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.

    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?

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

    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?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although all data 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.

    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?

Who wrote the metadata?

Dates:
Last modified: 20-Mar-2006
Metadata author:
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

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

Generated by mp version 2.8.18 on Wed Mar 22 17:09:18 2006