What is routing charts?

Answer 1

A routeing (pilot) chart is one of the most valuable tools available to the sailor. Each chart documents prevailing weather patterns-- wind, currents, wave heights, visibility, surface pressure, sea surface temperature, and ice caps--for 5o sections of the North Atlantic, South Atlantic, North Pacific, South Pacific, or Indian Oceans for a given month of the year. In essence, a pilot chart contains graphic representations of averages obtained from data gathered over man years in meteorology and oceanography to aid the navigator in selecting the quickest and safest routes.