Next, we see some sonar images from a wind-swept, shallow flat that was 7-8 feet deep. Waves had been pounding this area for several days, and the water was really stirred up.
The first screen capture shows a split screen view of Down Imaging (on the right) and 2D on the left, with 2D set to Max mode. Note that the turbulence in the water (bubbles and small organic debris) is apparent in Down Imaging, and with Switchfire-2D set to Max, the 2D image is just about completely saturated with sonar returns. Not particularly useful, in my opinion.
However, Clear mode makes short work of this situation. The second image shows same area in a DI/2d sonar split view, with the 2D sonar set to Clear mode. Clear mode does a great job of eliminating the vast majority of the clutter caused by bubbles and suspended organic matter, and gives the user a very usable 2D sonar image (note that DI appears the same in both screen captures: all that stuff is still there in the water column, but Clear mode filters the vast majority of it out).
(EDIT: the third pic shows this same flat earlier in the week, before the wind started to beat it up. Note that the 2D view (Clear mode) is completely clean, the DI view has no suspended matter, while the SI view shows the expansive nature of the flat and the fish that are using it. I count at least three if not 4 fish that are plainly visible in Side Imaging; note the bright white spots and their associated shadows)
