ConstArrows scale with the speed of the current from min speed to max speed. These values can be changed using the cogs variables seacurrents.lowestSpeed and seacurrents.highestSpeed.
No speed dependent arrow scaling. All arrows will have the same size, controlled by SeaCurrentsComponent.scale.
Arrows scale with the speed of the current within each band. See IHO S111 standard for band information
Different modes for scaling surface current arrows based on the speed of the current. The default range of the scaling factor controlled by this mode is 0.2->1.0, but these values can be changed using the cogs variables seacurrents.minScale and seacurrents.maxScale