H11346_2MSSS_UTM19.TIF: Enhanced Grayscale TIFF Image of the 2-m Sidescan-Sonar Data From National Oceanic and Atmospheric Administration (NOAA) Survey H11346 of the Sea Floor in the Vicinity of Edgartown Harbor, Massachusetts (UTM Zone 19, NAD83)

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

Frequently-anticipated questions:


What does this data set describe?

Title:
H11346_2MSSS_UTM19.TIF: Enhanced Grayscale TIFF Image of the 2-m Sidescan-Sonar Data From National Oceanic and Atmospheric Administration (NOAA) Survey H11346 of the Sea Floor in the Vicinity of Edgartown Harbor, Massachusetts (UTM Zone 19, NAD83)
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM), is producing detailed geologic maps of the coastal sea floor. Imagery, originally collected by NOAA for charting purposes, provides a fundamental framework for research and management activities along this part of the Massachusetts coastline, shows the composition and terrain of the seabed, and provides information on sediment transport and benthic habitat. Interpretive data layers were derived from the combined single-beam and multibeam echo-sounder data and sidescan-sonar data collected in the vicinity of Edgartown Harbor, Massachusetts. During August 2008 seismic-reflection profiles (Boomer and Chirp) were acquired, and during September 2008 bottom photographs and surficial sediment data were acquired as part of two ground-truth reconnaissance surveys.
  1. How should this data set be cited?

    U.S. Geological Survey, and National Oceanic and Atmospheric Administration, 2009, H11346_2MSSS_UTM19.TIF: Enhanced Grayscale TIFF Image of the 2-m Sidescan-Sonar Data From National Oceanic and Atmospheric Administration (NOAA) Survey H11346 of the Sea Floor in the Vicinity of Edgartown Harbor, Massachusetts (UTM Zone 19, NAD83): Open-File Report 2009-1001, U.S. Geological Survey, Coastal and Marine Geology Program, USGS 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., Foster, D.S., Blackwood, D.S., Williams, S.J., Ackerman, S.D., Moser, M.S., and Glomb, K.A., 2010, Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts: Open-File Report 2009-1001, U.S. Geological Survey, Coastal and Marine Geology Program, USGS 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: -70.557519
    East_Bounding_Coordinate: -70.426804
    North_Bounding_Coordinate: 41.458633
    South_Bounding_Coordinate: 41.370250

  3. What does it look like?

    <https://pubs.usgs.gov/of/2009/1001/data/sidescan/utm/h11346_2msss_utm19.gif> (GIF)
    Thumbnail image showing the sidescan sonar imagery produced from data collected during NOAA survey H11346

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

    Beginning_Date: 14-Aug-2004
    Ending_Date: 27-Sep-2004
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: remote-sensing image

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Raster data set. It contains the following raster data types:

      • Dimensions 4815 x 5381 x 1, type Pixel

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 19
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -69.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000

      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 2.000000
      Ordinates (y-coordinates) are specified to the nearest 2.000000
      Planar coordinates are specified in meters

      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?

    Entity_and_Attribute_Overview:
    A continuous-coverage sidescan-sonar image of NOAA survey H11346 in UTM Zone 19, NAD83. Data values in this grayscale image range from 0-255; a nodata value has not been assigned.


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?

    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


Why was the data set created?

To release a GeoTIFF of the 455-kHz sidescan-sonar data generated during NOAA survey H11346 in the vicinity of Edgartown Harbor, in UTM Zone 19, NAD83.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Type_of_Source_Media: DVD-ROM
    Source_Contribution:
    The original sidescan-sonar data acquired with Klein T-5000 sidescan-sonar systems during NOAA survey H11346 aboard the NOAA ship Thomas Jefferson.

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

    Date: 2004 (process 1 of 4)
    The sidescan-sonar data were acquired with Klein T-5000 sidescan-sonar systems hull mounted to two 29' aluminum launches deployed from the NOAA ship Thomas Jefferson. The systems were set to sweep 100 m to either side of the launch tracks. The sonar systems emitted two (port and starboard) 50°-wide beams tilted down 20° from horizontal, and transmitted at 455 kHz. The data were acquired in XTF (extended Triton data format), recorded digitally through an ISIS data acquisition system, and processed using CARIS SIPS (Sidescan Image Processing) software for quality control, and to produce a composite sidescan-sonar image at 2-m horizontal resolution. As part of this process, the sidescan-sonar data were demultiplexed and filtered to remove speckle noise and correct for slant-range distortions. Image 'shine through', to account for areas of overlap, and auto-contrast adjustment were applied. Contrast enhancement based on the dynamic range of the data was applied to the mosaic and it was then projected into UTM Zone 19 to produce the final enhanced image.

    Person who carried out this activity:

    National Oceanic and Atmospheric Administration
    c/o Marc Moser
    Field Operations Officer
    439 W. York Street
    Norfolk, VA 23510

    757-441-6322 (voice)
    marc.s.moser@noaa.gov

    Data sources produced in this process:
    • h11346_sss_100_2m_utm19nad83.tif

    Date: 2007 (process 2 of 4)
    The image was imported into Adobe Photoshop CS2 in order to apply a linear stretch (i.e., increase the dynamic range of the data), to change image from RGB to grayscale, to invert the grayscale to make strong reflections light tones and weak reflections returns darker tones, and to correct tonal artifacts caused by improper cross-track normalization..

    Person who carried out this activity:

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

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

    Data sources used in this process:
    • h11346_sss_100_2m_utm19nad83.tif

    Data sources produced in this process:

    • h11346_sss_100_2m_utm19nad83.tif

    Date: 2008 (process 3 of 4)
    ArcToolbox define Projection Tool was used to define projection at UTM Zone 19 NAD83 in ArcGIS 9.2.

    Person who carried out this activity:

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

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

    Data sources used in this process:
    • h11346_sss_100_2m_utm19nad83.tif

    Data sources produced in this process:

    • h11346_2msss_utm18.tif

    Date: 2008 (process 4 of 4)
    The world file was renamed to match the name of the GeoTIFF.

    Person who carried out this activity:

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

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

    Data sources used in this process:
    • h11346_sss_100_2m_utm19nad83.tfw

    Data sources produced in this process:

    • h11346_2msss_utm19.tfw

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

    Poppe, L.J., Ackerman, S.D., Foster, D.S., Blackwood, D.S., Butman, B., Moser, M.S., and Stewart, H.F., 2007, Sea-floor character and sedimentary processes of Quicks Hole, Elizabeth Islands, Massachusetts: Open-File Report 2006-1357, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Poppe, L.J., Ackerman, S.D., Foster, D.S., Blackwood, D.S., Williams, S.J., Moser, M.S., Stewart, H.F., and Glomb, K.A., 2007, Sea-floor character and sedimentary processes of Great Round Shoal Channel, offshore Massachusetts: Open-File Report 2007-1138, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Poppe, L.J., McMullen, K.Y., Foster, D.S., Blackwood, D.S., Williams, S.J., Ackerman, S.D., Barnum, S.R., and Brennan, R.T., 2008, Sea-floor character and sedimentary processes in the vicinity of Woods Hole, Massachusetts: Open-File Report 2008-1004, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Christman, Emily B. , 2004, H11346: Descriptive Report H11346, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.

    Online Links:


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

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

    Navigation was by differential GPS

  3. How accurate are the heights or depths?

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

    All collected data were processed and used to produce this dataset.

  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 are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) and National Oceanic and Atmospheric Administration (NOAA) as the originators of this information.

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

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

    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 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?

    This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image. The user must have software capable of uncompressing archived zip files, such as WinZip or Pkware.


Who wrote the metadata?

Dates:
Last modified: 31-Aug-2009
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)

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


Generated by mp version 2.9.6 on Mon Aug 31 10:35:28 2009