U.S. Geological Survey, 2013, 2007-039-FA_hypack - Raw HYPACK navigation logs (text) collected by the U.S. Geological Survey from Middle Ground, MA, 2007: Open-File Report 2013-1020, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.This is part of the following larger work.Online Links:
Pendleton, Elizabeth A., Andrews, Brian D., Danforth, William W., and Foster, David S., 2013, High-Resolution Geophysical Data From Sand Shoals of Vineyard Sound and the Sea Floor Surrounding the Eastern Elizabeth Islands, Massachusetts: Open-File Report 2013-1020, U.S. Geological Survey, Reston, VA.Online Links:
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 Degrees, minutes, and decimal seconds.
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.
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These raw navigation data are included as an archive documenting the survey area surrounding Middle Ground, Massachusetts and the instrumentation used to manage the ship's navigation.
, U.S. Geological Survey.
Person who carried out this activity:
(508)-548-8700 x2259 (voice)
(508)-457-2310 (FAX)
ependleton@usgs.gov
Andrews, B.D., Ackerman, S.D., Baldwin, W.E., Foster, D.S., and Schwab, W.C., 2013, High-Resolution Geophysical Data From the Inner Continental Shelf at Vineyard Sound, Massachusetts: Open-File Report 2012-1006, U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.Online Links:
Ackerman, S.D., Andrews, B.D., Foster, D.S., Baldwin, W.E., and Schwab, W.C., 2013, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts: Open-File Report 2012-1002, U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Pendleton, E.A., Twichell, D.C., Foster, D.S., Worley, C.R., Irwin, B.J., and Danforth, W.W., 2012, High-Resolution Geophysical Data From the Sea Floor Surrounding the Western Elizabeth Islands, Massachusetts: Open-File Report 2011-1184, U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Turecek, A.M., Danforth, W.W., Baldwin, W.E., and Barnhardt, W.A., 2012, High-Resolution Geophysical Data Collected Within Red Brook Harbor, Buzzards Bay, Massachusetts, in 2009: Open-File Report 2010-1091, U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Positions of the ship and water depths (HYPACK line nav.) were determined using a Furuno 1000 (GPS/Plotter and echosounder) antenna mounted above the cabin on the R/V Rafael. These GPS data are assumed to be accurate to within + or - 10 meters.
Real-Time Kinematic (RTK) heights were collected with an Ashtech Z-Extreme receiver, and recorded by HYPACK Survey software to HYPACK raw files. RTK vertical positions were used to post-process tidal corrections for bathymetry data. RTK positional accuracy is sub-meter. EC1 depth values were collected with a Furuno FRS 1000 plotter/radar/sounder, which has an assumed vertical accuracy of 0.5 meters.
These files represent two of the three global positioning systems used on the R/V Rafael during cruise 2007-039-FA. The GPS data recorded to HYPACK include the following receivers: an Ashtech Zxtreme (RTK), and a Furuno 1000 (GPS/plotter and echosounder for boat navigation). An additional antenna and receiver for the Coda Octopus F180 was used for navigation for the Swath interferometric and attitude data, and imported directly into SwathPlus without being logged in HYPACK. The Ashtech Z-extreme (RTK) was used for redundancy and recorded to HYPACK, but was not recorded as x,y navigation for any instrument. RTK vertical positions were used to post-process tidal corrections for bathymetry data.
These are the original raw data files recorded by the HYPACK navigation software. No additional checks or corrections have been made to these files.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Not to be used for navigation. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
(508) 548-8700x2259 (voice)
(508) 457-2310 (FAX)
ependleton@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 U.S. Geological Survey 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.
Data format: | This WinZip (v. 14.5) file contains compressed raw HYPACK navigation as well as associated metadata. in format HYPACK (version 6.2.2.8) Text Size: 2 MB |
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Network links: |
<http://pubs.usgs.gov/of/2013/1020/GIS_catalog/hypack/2007-039_hypack.zip> <http://pubs.usgs.gov/of/2013/1020/html/GIS_catalog.html> |
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These data can be viewed with any text editing software.
(508) 548-8700x2259 (voice)
(508) 457-2310 (FAX)
ependleton@usgs.gov