2011-006_995BOTPHOTOS: Location of Sea Floor Photographs Acquired During U.S. Geological Survey (USGS) Cruise 2011-006-FA in Rhode Island Sound (Geographic)

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Frequently-anticipated questions:

What does this data set describe?

Title:
2011-006_995BOTPHOTOS: Location of Sea Floor Photographs Acquired During U.S. Geological Survey (USGS) Cruise 2011-006-FA in Rhode Island Sound (Geographic)
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is producing 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 along this part of Rhode Island Sound, shows the composition and terrain of the seabed, and provides information on sediment transport and benthic habitat. Interpretations were derived from the multibeam echo-sounder data collected in Rhode Island Sound. During June 2011, bottom photographs and surficial sediment data were acquired as part of a ground-truth reconnaissance survey of these areas. For more information on the ground-truth survey see <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-006-FA>.
  1. How should this data set be cited?

    U.S. Geological Survey, 2012, 2011-006_995BOTPHOTOS: Location of Sea Floor Photographs Acquired During U.S. Geological Survey (USGS) Cruise 2011-006-FA in Rhode Island Sound (Geographic): Open-File Report 2012-1004, 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.

    McMullen, K.Y., Poppe, L.J., Ackerman, S.D., Worley, C.R., Nadeau, M.A., and Hoy, M.V. Van , 2012, Sea-floor geology in central Rhode Island Sound south of Sakonnet Point, Rhode Island: Open-File Report 2012-1004, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: DVD-ROM

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -71.256290
    East_Bounding_Coordinate: -71.102051
    North_Bounding_Coordinate: 41.322160
    South_Bounding_Coordinate: 41.265865

  3. What does it look like?

    <http://pubs.usgs.gov/of/2012/1004/data/botphotos/2011-006_995botphotos.gif> (GIF)
    Thumbnail image showing location and extent of bottom photo locations in Rhode Island Sound

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

    Calendar_Date: 15-Jun-2011
    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 (122)

    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?

    2011-006_995botphotos
    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.

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

    Characters and numerics identifying sampling sites

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

    Characters and numerics identifying photos

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

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

    LATITUDE
    Latitude coordinate of photo location, WGS84 (Source: USGS)

    Range of values
    Minimum:41.265865
    Maximum:41.32216
    Units:Decimal degrees
    Resolution:0.000001

    LONGITUDE
    Longitude coordinate of photo location, WGS84 (Source: USGS)

    Range of values
    Minimum:-71.256290
    Maximum:-71.102051
    Units:Decimal degrees
    Resolution:0.000001

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

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

    CRUISEID
    Cruise identifier (Source: USGS)

    ValueDefinition
    2011-006-FAField activity serial number assigned by Woods Hole Science Center data archives

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

    ValueDefinition
    SURVEY H11995 IN RHODE ISLAND SOUNDProject name assigned by Woods Hole Science Center data archives

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

    ValueDefinition
    LPOPPELawrence Poppe

    PHOTO_MR
    Relative disk location of medium-resolution photograph (Source: USGS)

    Location of image file

    Entity_and_Attribute_Overview:
    Data layer attributes include date and position photograph was acquired; station and photograph identifiers. The naming convention for photographs is a 3-number location identification (995, referring to NOAA survey H11995), an underscore, the station number, and a letter of the photograph at that station (multiple photos are often taken at a single location), and the resolution of the photograph (fr for full resolution, mr for medium resolution, and tn for thumbnail). For instance, 995_4amr.jpg is a photograph from H11995, station 4, photo a, medium resolution and is in JPEG format.

    Medium resolution photographs can be hyperlinked in this shapefile. In order to effectively utilize this attribute in ArcGIS, the user must follow a couple of steps. First, the user must open the Layer Properties of the bottom photograph shapefile within ArcMap - select the Display tab - and click on the check box next to "Support Hyperlinks using field:" and the field selected from the dropdown menu needs to be "PHOTO_MR". The hyperlink is set to a document. Additionally, a hyperlink base must be supplied in the ArcMap document (mxd) to complete the full path to the images. This is accomplished from File - Document Properties. On the Summary tab there is a section for "Hyperlink base". The text supplied here needs to be the disk information preceding "data" in the full path to the image. If the data are being read from a DVD, this would be the drive letter such as F:\.

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?

    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2277 (voice)
    (508) 457-2310 (FAX)
    kmcmullen@usgs.gov

Why was the data set created?

The purpose of this dataset is to release the locations and identifiers of 122 bottom photographs collected at 27 stations on topographic data of the seafloor in Rhode Island Sound. The photos were collected with a modified Van Veen grab sampler modified to carry still and video camera systems (small SEABOSS) during USGS survey 2011-006, on June 15, 2011.

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: 2011 (process 1 of 3)
    Navigation and time recorded on videotape and in cruise logs were used to identify and register the still photographs. This information was input into an Excel (.xls) file (2003 version).

    Person who carried out this activity:

    Katherine McMullen
    U.S. Geological Survey
    Field and Labratory Technician
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2277 (voice)
    (508) 457-2310 (FAX)
    kmcmullen@usgs.gov

    Data sources produced in this process:
    • 2011-006_995botphotos.xls

    Date: 2011 (process 2 of 3)
    ArcMap 9.2 was used to create a shapefile from the Excel file using Tools-Add XY Data to import the excel file with Longitude in the x field and Latitude in the y field. This file was changed to a shapefile by right clicking on the name, selecting Data-Export Data, exporting all features using the layer's source data coordinate system.

    Person who carried out this activity:

    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA 02543
    USA

    508-548-8700 x2277 (voice)
    508-457-2310 (FAX)
    kmcmullen@usgs.gov

    Data sources used in this process:
    • 2011-006_995botphotos.xls

    Data sources produced in this process:

    • 2011-006_995botphotos.shp

    Date: 2011 (process 3 of 3)
    ArcGIS 9.2 was used to define the projection of the ESRI shapefile Geographic WGS84.

    Person who carried out this activity:

    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA 02543
    USA

    508-548-8700 x2277 (voice)
    508-457-2310 (FAX)
    kmcmullen@usgs.gov

    Data sources used in this process:
    • 2011-006_995botphotos.shp

    Data sources produced in this process:

    • 2011-006_995botphotos.prj

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

    Blackwood, D., and Parolski, K., 2001, Seabed Observation and Sampling System: Sea Technology v. 42, no. 2, p. 39-43.

    Poppe, L.J., McMullen, K.Y., Ackerman, S.D., Blackwood, D.S., Irwin, B.J., Schaer, J.D., and Forrest, M.R., 2011, Sea-Floor Geology and Character of Eastern Rhode Island Sound West of Gay Head, Massachusetts: Open-File Report 2011-1004, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: DVD-ROM
    McMullen, K.Y., Poppe, L.J., Ackerman, S.D., Blackwood, D.S., Schaer, J.D., Nadeau, M.A., and Wood, D.A., 2011, Surficial geology of the sea floor in central Rhode Island Sound, southeast of Point Judith, Rhode Island: Open-File Report 2011-1005, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine 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?

    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, water depths were generally shallow and scope of the cable minimal. Therefore, SEABOSS offset from the antenna was less than 5 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 in the Rhode Island Sound H11995 study area collected during the R/V RAFAEL cruise 2011-006 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 1)

    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2277 (voice)
    (508) 457-2310 (FAX)
    kmcmullen@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 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, or NOAA, 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.These data are available as an Excel formatted (.xls) file. The user must have a software program capable of reading Excel files. These data are available as a generic ASCII formatted text file. The user must have a software program capable of reading the comma-delimited data file.

Who wrote the metadata?

Dates:
Last modified: 09-Jan-2012
Metadata author:
Katherine McMullen
U.S. Geological Survey
Field and Laboratory Technician
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA

(508) 548-8700 x2277 (voice)
(508) 457-2310 (FAX)
kmcmullen@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 Mon Jan 09 11:03:51 2012