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Title: Prediction of monthly-seasonal precipitation using coupled SVD patterns between soil moisture and subsequent precipitation

Author: Liu, Yongqiang;

Date: 2003

Source: Geophysical Research Letters 30(15): 1-4

Publication Series: Miscellaneous Publication

Description: It was suggested in a recent statistical correlation analysis that predictability of monthly-seasonal precipitation could be improved by using coupled singular value decomposition (SVD) pattems between soil moisture and precipitation instead of their values at individual locations. This study provides predictive evidence for this suggestion by comparing skills of two staf stical prediction models based on the coupled SVD pattems and local relationships. The data used for model development and validation are obtained from a simulatton over East Asia with a regional climate model. The results show a much improved skill with the prediction model using the coupled SVD patterns. The seasonal prediction skill is higher than the monthly one. The most remarkable contribution of soil moisture to the prediction skill is found in warm seasons, opposite to that of sea surface temperature.

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Liu, Yongqiang 2003. Prediction of monthly-seasonal precipitation using coupled SVD patterns between soil moisture and subsequent precipitation. Geophysical Research Letters 30(15): 1-4


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