METHOD AND SYSTEM FOR ANALYZING SPATIAL PROBABILITY BASED ON CORRESPONDENCE RELATIONSHIP BETWEEN PRECIPITATION FORECAST AND TELECONNECTION
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United States of America
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Mar 6, 2025
app pub date -
Jun 15, 2022
filing date -
Jun 15, 2022
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Abstract
The present invention provides a method and system for analyzing a spatial probability based on a correspondence relationship between precipitation forecast and teleconnection. The method includes: acquiring a sample sequence of a precipitation forecast to be analyzed and a sample sequence of corresponding observation precipitation and climate indices; respectively calculating a forecast-observation correlation coefficient (FO-CC) and a climate index-observation precipitation teleconnection correlation coefficient (T-CC) of each grid according to the sample sequences, and categorizing each grid according to significance of the FO-CC and the climate index-observation precipitation T-CC; determining a correspondence relationship between the FO-CC and the T-CC according to a grid categorization result; calculating a spatial weight according to spatial coordinates of the grid for acquiring a spatial weight matrix; and calculating a spatial consistent probability where the FO-CC is significantly positive according to the spatial weight matrix and the correspondence relationship between the FO-CC and the T-CC.
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