While the rendered contour lines are quite good for sea areas already, there are aspects which make them inappropriate for inland waters. Inland waters have much smaller range of depth and usually you have way less water beneath the keel. Inlands water depths of two meters can be considered as safe, while at sea one would not trust anything below at least five meters.
Problem: The sensor vertical offset is not taken under consideration
With an offset of ± 1 meter in the measurement, the data get very inaccurate in respect to the small values inlands
When two ships with different offset are contributing the renderer gets crazy, like [1] where a ship with no offset passed my contributed area of data with 1.2 meter offset
Solution: The sensor vertical offset is registered in the requested ship details. It needs to be taken into the calculation when doing the triangulation.
While the rendered contour lines are quite good for sea areas already, there are aspects which make them inappropriate for inland waters. Inland waters have much smaller range of depth and usually you have way less water beneath the keel. Inlands water depths of two meters can be considered as safe, while at sea one would not trust anything below at least five meters.
Problem: The sensor vertical offset is not taken under consideration
Solution: The sensor vertical offset is registered in the requested ship details. It needs to be taken into the calculation when doing the triangulation.
[1] http://map.openseamap.org/?layers=BFTFFFFFFFF0FFFFFFFFTT&zoom=18&lat=52.48761&lon=13.49194