Abstract
A computational method for the determination of rainfall distribution for applications in short term rainfall prediction is presented here. The method is strongly influenced by the experience gained from the observation and analysis of data gathered on a heavy rainfall event in 1986 that occurred during the Baiu Season in Japan. The method is based on the concept that rainfall occurs as an interaction between an instability field, appropriately modeled, and a field of water vapor under the influence of topography. The results from this computational method showed good agreement with the temporal variation in the rainband that moved across the observation field in 1986. Towards determination of the parameters in the computational model, another method for the determination of the rainfield is also developed. This second method determines the rainfall distribution from estimation of the conversion rate of water vapor to liquid water through use of data from a three dimensional scanning radar. The results are consistent with those obtained from the first method.
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Nakakita, E., Ikebuchi, S., Shiiba, M. et al. Advanced use into rainfall prediction of three-dimensionally scanning radar. Stochastic Hydrol Hydraul 4, 135–150 (1990). https://doi.org/10.1007/BF01543287
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DOI: https://doi.org/10.1007/BF01543287