Valentine, Page C. , Gallea, Leslie B. , Blackwood, Dann S. , and Twomey, Erin R. , 2010, SB_JPEGS (Images): USGS Collection of Sea Bottom Photographs from the Stellwagen Bank National Marine Sanctuary Region: U.S. Geological Survey Data Series 469, Version 1.0, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
Valentine, Page C. , Gallea, Leslie B. , Blackwood, Dann S. , and Twomey, Erin R. , 2010, Seabed Photographs, Sediment Texture Analyses, and Sun-illuminated Sea Floor Topography in the Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts: U.S. Geological Survey Data Series 469, Version 1.0, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
This is a Raster data set. It contains the following raster data types:
Station No.: number assigned to station. In a few instances, when multiple photographic transects were conducted at approximately the same site, the stations were named using a number and in some instances a letter (e.g. 3131a) or a decimal number (3131.1) suffix was appended. During the project, this station numbering scheme was not consistent, so that some station names used one format and some the other. For the purpose of these data, all photographic images were renamed using the number and letter format for the station name where necessary. For example, station 3131.1 is now named 3131a.; Image No.: file name of photo image (example: andr95036_q6_1128a_025.jpg); >andr: vessel name code (Peter W. Anderson); >95036: USGS Woods Hole Coastal and Marine Science Center Field Activity Number; >>95: last two digits of year; >>036: thirty-sixth field activity of the year; >q6: location is Quadrangle 6; >1128a: Station number in Quadrangle 6; >025: Image number on archived CD ROM for the cruise (multiple images at a station are numbered in the sequence they were collected); Water Depth, m: depth of water at station location; Field of View, cm: dimensions of area of seabed in image; Geographic Location: Quadrangle number in Stellwagen Bank National Marine Sanctuary region; Time Zone: GMT, Greenwich Mean Time; Original YYYY:MM:DD HH:MM:SS: Original date and time (GMT) photo collected YEAR:MONTH:DAY HOUR:MINUTES:SECONDS; Julian Date and Time GMT: Julian Day:HH:MM:SS; Latitude N: latitude north (decimal degrees) of photo location; Longitude W: longitude west (decimal degrees) of photo location; Instrument: instrument used to collect photo; Link to Instrument Description: link to description of instrument on web; Organization: organization that collected the photo; WHCMSC Field Activity (cruise) No.: USGS Woods Hole Coastal and Marine Science Center Field Activity (cruise) Number; >example, 95003: 95: last two digits of year and 003: third field activity of the year; Principal Investigator: Page Valentine; Photo Credit: organization to credit when using this image.
(508) 548-8700 x2339 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
The images were acquired to provide information on the geological and biological characteristics of the seabed to be used in groundtruthing multibeam sonar imagery and producing interpretive maps of the regional sea floor. This metadata represents the metadata for all the images although for convenience, the images are distributed based on quadrangle.
Person who carried out this activity:
(508) 548-8700 x2339 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2239 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2341 (voice)
(508) 457-2310 (FAX)
lgallea@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2341 (voice)
(508) 457-2310 (FAX)
lgallea@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2284 (voice)
(508) 457-2310 (FAX)
etwomey@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2339 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
Person who carried out this activity:
(508) 548-8700 x2339 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
Blackwood, D., Parolski, K., and Valentine, P., 2000, Seabed Observation and Sampling System: U.S. Geological Survey Fact Sheet FS-142-00 FS-142-00, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Page C. Valentine, editor, 2005, Sea floor image maps showing topography, sun-illuminated topography, backscatter intensity, ruggedness, slope, and the distribution of boulder ridges and bedrock outcrops in the Stellwagen Bank national marine Sanctuary region off Boston, Massachusetts: Scientific Investigations Map 2840, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
The JPEG photos represent spatial data. These data were navigated with a Differential Global Position System (DGPS); they are accurate to +/- 10 meters horizontally. During deployment, the camera system hangs directly below the side of the ship, and the recorded navigation data closely approximates the position of the camera system near the seabed. The ship is oriented so that wind and waves will not cause it to drift over the conducting cable attached to the SEABOSS.
Depth was acquired using the ship fathometer until 1998. After 1998 depth was acquired using the depth sensor on the SEABOSS. Depths are accurate to +/- 1 meter.
All seabed photographs were taken between 1994 and 2004. A USGS watermark was added to all high resolution JPEG images in 2009.
For some stations, gaps exist in the sequential image numbers that are incorporated into image filenames. Image numbers were assigned during the digitization of the film images and their storage on an archival CD-ROM. The sequence of images from some stations was split among two CD-ROMs. This process created gaps in the image numbering sequence for those stations. For example, station 3948 has images numbered 1-17 and 62-100. The first photograph taken at station 3948 was digitized as image number 62 on a CD-ROM, and subsequent images from the station recorded on that CD-ROM were assigned numbers 63 to 100. The remaining images from station 3948 were recorded onto a new CD-ROM as images numbered 1 to 17. When the last photograph from station 3948 was digitized (CD-ROM image 17), a new station's photographs were loaded onto the CD-ROM beginning with image number 18 and so on. In addition, digitized images of tests on deck or blanks caused by a strobe malfunction have not been included in the photo collection. For all photographs, lowercase file names had to be used in the online seabed photograph collection due to restrictions within the database code. A combination of lowercase and uppercase was used in the file names that are available to download in zipped format from the data catalog page of this report. Each individual photograph in the online database and its respective copy available to download from the data catalog page, share the same seabed image and EXIF comment data.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- To view EXIF comments users need to open downloaded photographs using an image viewer capable of reading the EXIF header.
- 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.
(508) 548-8700 x2239 (voice)
(508) 457-2310 (FAX)
pvalentine@usgs.gov
Downloadable Data
Neither the U.S. Government, the Department of the Interior, nor the USGS, 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 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.
The data is available to download in WinZip format that was created with WinZip Version 9.0 SR-1 (6224). Users may download WinZip at <http://www.winzip.com/index.htm> or use WinRAR or Pkunzip.
(508) 548-8700 x2341 (voice)
(508) 457-2310 (FAX)
lgallea@usgs.gov