| 摘要 |
A linear regression equation,η1=α(ε×h)+β, is obtained based on a depth h to a water zone of a predetermined water temperature, respective densitiesρ1 andρ2 of upper and lower layers above and below the water zone, and an absolute dynamic topographyη1 obtained based on data measured by satellite (ε=(ρ2−ρ1)/ρ2). Further, h′(depth of the water zone of the predetermined water temperature at each of a large number of spots) is determined according to this equation,η2=α(ε′×h′)+β, based onε′for each of the large number of spots calculated based on historical data, an absolute dynamic topographyη2 at each of the large number of spots based on data measured by satellite, and the valuesαandβ.
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