Method and computing device for generating a spatial and temporal map of estimated vessels traffic in an area

The invention relates to a computing device or a method of generating a spatial and temporal map (50) of an estimated vessels traffic in an area (51), said method comprising the following steps: Acquisition (110) of a plurality of satellite radar images of the area (51), said plurality of satellite radar images having been generated over a period of at least twelve months at a median frequency lower than ten images per week; Analysis (120) of the plurality of satellite radar images to generate data on vessels forming an historical vessel traffic; Correction (130) of the generated data based on the plurality of satellite radar images frequency; and Generation (180), from the corrected data, of at least one spatial and temporal distribution map of vessels forming the estimated vessel traffic in the area, said spatial and temporal distribution map comprising vessel density values by time period.