Triton Bathymetry - Manual (Page 18)

Page 14
A few things to note:
 Gridding Methods: There are two different gridding methods available, our
standard DTM gridding algorithm and the CUBE (Combined Uncertainty and
Bathymetric Estimator) statistical algorithm developed by Dr Brian Calder at the
Center for Coastal and Ocean Mapping, University of New Hampshire.
 Bathy QC Layers: These extra layers load in the same file tree node as the grid file
and allow the user to quickly identify areas that need further validation (see section
8.3 for additional information regarding Bathy QC layers).
 Minimum Number of Sounding: The number entered here sets the minimum number
of soundings a grid cell must have in order to calculate the standard deviation and
determine IHO compliance. The more soundings that fall within a grid cell reporting
the same value, the more confidence there is in that value. As a general rule, the
standard deviation calculation requires at least 5 values (soundings per grid cell) for
there to be any confidence in the results. Therefore Perspective limits the
minimum number of soundings to use for calculating standard deviation to 5. Often
hydrographic surveys require at least 10 soundings per cell to be accepted.
5.1.2 Select Input Lines
This page allows the user to select which lines to include in the processing as shown below: