Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
Online ISSN : 2185-467X
ISSN-L : 2185-467X
Annual Journal of Hydraulic Engineering, JSCE, Vol.61
STUDY OF THE MITIGATION EFFECT AND ACCELERATION RISK ON PRECIPITATION OF TORRENTIAL RAINS BY CLOUD SEEDING WITH THE FORCED-COOLING TECHNIQUE
Shuichiro YAGIYoshiharu SUZUKIKazuhiro YOKOYAMA
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2017 Volume 73 Issue 4 Pages I_259-I_264

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Abstract
 This study conducted experimental simulations of cloud seeding on torrential rains with the forced-cooling technique in order to examine the mitigation effect and acceleration risk on precipitation. Some severe rainfall events including linear convective systems were simulated using a mesoscale meteorological model. Results of this study clarified that relatively small-scale cloud seeding as the discrete or dynamic seeding can produce some mitigation effects on precipitation. The mitigation and acceleration ratios calculated in all nine events and in four linear convective systems showed that precipitation from the latter events can be more readily decreased with the lower acceleration risk than other events by cloud seeding in the early stage of cloud development.
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© 2017 Japan Society of Civil Engineers
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