Method of calculation parameters at least one vessel and deduction METHOD each derived vector at any point on the said vessel trajectore

The invention relates to a parameter calculation method of at least one vessel. It comprises the following steps: a) obtaining parameters of said vessel (1), the position, heading, ground speed, course over ground from data available in the data or real-time basis; b) obtaining, by means external to said vessel (1), at least one parameter selected from the wind and current proximate to said vessel (1) from data available in the data or real-time basis; c) defining the vector is derived from or selected parameters from the wind and current; d) defining the bottom from the vector or parameters selected from among the position, ground speed and course over ground; e) calculating the intensity and direction of the vessel surface vector (1).