I very much appreciate the work done by Paul and would like to give a few examples of my personal experience using GE2KAP.
Before sailing in the Tuamotu, I noticed that coral
patches in the atolls' interior
were not specified for some of the atolls in the CM93 set of charts I had, so that I previously made .kap images
of the atolls I planned to visit (sometime using the GE historical images
that can evidence coral
patches better than the last images). Having checked the good correspondence between the patches distributions in both the chart and the GE image (not considering the overall possible shift in the latitude and/or longitude of the charts, in particular for remote
islands), I have been able to enter and cross atolls mainly relying on charts created from GE images using GE2KAP … and a careful eye watching!
I have also been able to plan and make specific trips, with as much safety
as possible, such as visiting the Minerva riff, signed by only one rock emerging at high tide, or the Chesterfields Islands that have a very low relief.
in sandy places away from any coral patches has always been done, in particular in the whole Pacific, relying on GE charts created by GE2KAP inserted in OpenCPN
. Now sailing in the Mediterranean
, I continue using GE images to choose anchorages
and avoid anchoring
in posidonia fields, which are very fragile flowering plants, or on rocks.
Another interest I personally have, as a physical oceanographer but also since I am sailing offshore
always trawling fishing
lines, is about using the sea surface temperature (SST) distribution now available online in near real time. For example, with MyOcean interactive catalogue - MyOcean
or MyOcean Viewer
for the Mediterranean
Sea (then choosing the data set ultra high resolution, zooming on your area of interest, and auto-adjusting the color range), you can open the displayed SST data in GE before building a .kap with GE2KAP, which will allow you to sail looking for fronts where pelagic fishes such as tuna and maï-maï might concentrate!
Note that surface currents can almost easily be inferred from such SST fields (currents are generally parallel to the isotherms, in fact isopycnals, due to the Coriolis effect), and that racers and cruisers as well can take advantage of this information to adjust their route
, be it along the coast or across an ocean.
Enjoy using GE2KAP!
SY "Ailes et Iles", France