On 18/01/2011 17:09, [email protected] wrote:
It seems to me that you would need to map a series of depth contours, not
simply mark channels as navigable or not navigable, as different craft will
require different depths of water. Also, this information will need to be
updated frequently, as some shoals can shift position with every storm.
Thanks. I understand what you're suggesting, and I was probably a bit
misleading in my original email. The problem is how to differentiate
between sub-low-water level areas that are 2m deep, and the (often
man-made) channels that are sufficiently deep to allow navigation.
This then becomes a nautical chart, which is outside the scope of a land
map such as OSM. The OpenSeaMap (openseamap.org) project is attempting
this endeavour. Any ideas and help would be welcome.
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