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USGS CMG T-1-98-PS Bathymetry

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Arc Files:
Best file with nav in ArcInfo E00 format t-1-98-ps.zip
0.9 Mb
Digital Data:
Raw depth (bathymetry) data t-1-98-ps.300_053 5.0 Mb Provisional best file
Raw depth (bathymetry) data t-1-98-ps.300 2.9 Mb
Metadata:
Notes
 T198PS   Explanation on the two sets of latitude and longitudes in the .300_053 file - 
 
 On Jun 25, 2012, at 10:01 AM, Fisher, Michael A. wrote:
 
 Back in 1998 I arrived on the Thompson to begin field operations in Puget Sound and I was 
 informed that the ship had just been in dry dock. One of the tasks they achieved was to 
 install a new bathy transducer. Unfortunately, no one had remembered to accurately measure 
 where the transducer was along the ship's bottom so that the locations of bathy readings 
 could be corrected for the 'ducer's offset from the ship's GPS antenna. The ship, I was 
 told, might not be in dry dock again for a year or longer. So, I had the crew make two 
 lat/long files for the bathy: one is the location of the ship's antenna, the other shows 
 the location of the center of the MCS airgun array. To use the bathy data you would start 
 with the first set of locations, but these locations are in error by the offset. Maybe 
 this is negligible. Undoubtedly, in the time since the '98 survey the transducer-antenna 
 offset was measured and can be obtained by calling the folks who manage the Thompson at 
 the University of Washington. My focus was on the MCS and wide-angle seismic data, so I 
 never got around to attending to this task.
      
Check the analog holdings.

  
Type Webpage KMZ Arc         Metadata        
Bathymetry data bath    
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Seismic data seis    
Times   053.times    
T198PS map of where bathymetry equipment operated

Google earth captured images
 
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URL: http://walrus.wr.usgs.gov/infobankt/t198ps/html/t-1-98-ps.bath.html
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Page Last Modified: Tue Oct 29 15:58:16 PDT 2013  (chd)