Yes, the algorithm can evaluate if the boat is sailing in a “crossed sea” and, if so, degrade the polar by a certain coefficient.
To consider that the sea is crossed, we need the following conditions:
- the significant height of the total sea is greater than a certain threshold
- the angle between the direction of the swell and the wind waves between 45° and 135°.
You can also use the following method:
Load a wave grib file (ww3 model) and study the waves forecast. If the waves are too strong, you can either:
- limit the maximum wind speed
- create restricted areas
- add a waypoint to your route
- use pivot points to avoid these areas