| 摘要 |
PROBLEM TO BE SOLVED: To provide a marine environment measuring interval determination method and a device useful for improvement of forecast accuracy, and capable of collecting efficiently observation data used for data assimilation processing. SOLUTION: A physical correlation coefficient on the marine environment which is a forecast object is calculated based on a numerical marine model, and a Gaussian correlation coefficient distribution is assumed by utilizing the calculated value, to thereby calculate a physical correlation distance. On the other hand, a Rossby radius of deformation which is a range on which a disturbance generated in the marine exerts an influence is calculated based on characteristics such as the depth of a sea area which is a measuring object, a Coriolis parameter, a gravitational acceleration. The prediction result of physical quantities by the numerical marine model or the calculation result of the Rossby radius of deformation is used as the measuring interval. Otherwise, the size relation between the correlation distance and the Rossby radius of deformation is compared, and the smaller one is selected therefor. COPYRIGHT: (C)2004,JPO
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