The instruction on the channel depth practice in Finland published by the Finnish Transport Agency includes draught concepts associated with channels, the principles for interpreting these concepts, estimating the required gross underkeel clearance and for indicating channel depths in nautical charts.

The channel depth practice in Finland - principles and implementation

The squat calculation programme is an instrument for calculation of squat as a function of its speed in any cross section of the channel. The programme is mainly applicable to open water.

Instructions for use of the squat calculation programme

Squat calculation (xls)