Triton Sidescan - Manual (Page 10)

Page 7
3. If the file includes both amplitude and depth information, then the bottom track
can be automatically extracted from the bathy nadir depth. Doing this may require
the user to apply a Bottom Track Offset to move the entire bottom track line up or
down by a specified value.
4. Auto Update XTF is the only place in Perspective that the user is able to overwrite
their raw data!. This option exists because bottom tracking a large survey can take
a considerable amount of time and once done it is best to save the new bottom
tracking information back to the raw data files instead of in cache files since cache
files are not always preserved with the raw data files for future work with the data.
5. The "Slant Range Correct" option applies the slant range correction typical for the
waterfall view to the bottom tracking display. Areas with portions of the water
column included in the slant-range corrected image will show up as black areas in the
data. This allows the user to QC the bottom track results, and to identify/repair
problem areas without having to return to the waterfall window to see the results.
An example of this is shown below.