Further analyses of the climax cloud-seeding experiments
Further analyses of the climax cloud-seeding experiments
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高潮播云实验的进一步分析
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
P. Hobbs
中科院分区：
文献类型：
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作者：
A. Rangno;P. Hobbs
摘要 对 Climax I 和 II 随机播云实验的进一步检查揭示了以下内容。 1) 试验中途选择控制站后，播云对高潮一期降水没有影响。 2) 随机化方案的错误执行导致了误导性的降水气候学以及控制日云顶温度和 500 mb 温度之间的误导性关系。 3) 将高层风和温度分配给实验日的方法强调了云顶远高于 500 mb 的广泛的天气尺度天气系统，而不是所寻求的地形“毯状”云。 4) 粒子轨迹计算表明，从地面释放的碘化银不太可能影响西南流中顶峰的降水，据报道，西南流的播种效应最大。
Abstract A further examination of the Climax I and II randomized cloud-seeding experiments has revealed the following. 1) Cloud seeding had no effect on precipitation in Climax I after the control stations had been chosen halfway through the experiment. 2) Faulty execution of the randomization scheme resulted in a misleading precipitation climatology and a misleading relationship between cloud-top and 500-mb temperatures for the control days. 3) The method of assigning upper-level winds and temperatures to experimental days emphasized widespread, synoptic-scale weather systems with cloud tops far above 500 mb rather than the orographic “blanket” clouds that were sought. 4) Particle trajectory calculations show that it is unlikely that the silver iodide released from the ground could have affected precipitation at Climax in southwest flow, the category for which the greatest seeding effect was reported.