fCombined

The fCombined sub-­‐structure contains the phase 2 results from the cBathy algorithm. These are maps of the depth estimates at each analysis location that best fit a weighted combination of all of the frequency-­‐wavenumber information available. This yields a single bathymetry map, along with fit error information.

The fCombined sub-­‐structure has the following fields:

bathy.fCombined =

h: [41x43 double] 
hErr: [41x43 double] 
J: [41x43 double]
fBar: [41x43 double]

h

h is the best estimate of depth

hErr

hErr is the 95% confidence interval on that estimate.

J

J is the Jacobian returned by the nonlinear fitting routine.

fBar

fBar is the average frequency used for each tile, dependent on a weighted average of the four fB values from Phase I.

Note that results from phase 1 and 2 will be tide-­‐corrected (i.e. adjusted to the local vertical datum) if the value of bathy.tide.zt is other than nan. In other words, a time series plot of depth estimates over a tidal cycle should show a constant value.

Final fCombined results for any run can be nicely displayed using the routine plotBathyCollect.