论文部分内容阅读
用氯化钙溶滴消暖雾已经70年了,后来细盐粒子或盐溶液也被用于催化暖云,希望它们在云中形成雨胚,启动或加速碰并过程以增加降水。20世纪60年代,飞机播撒盐粉、地面烧盐粉成为我国人工影响暖云的主要方法,普遍反映有增雨效果,由于当时条件限制,没有进行严格的科学验证;同时,因为实施中播撒剂量大,对飞机又有腐蚀而被搁置。十多年前南非在人工增雨中开发了产生吸湿性微粒的新型焰弹技术,用于暖性对流云催化,通过随机化试验取得了具有统计显著性的增雨效果,这一结果在墨西哥的试验中得到重复;另一方面,泰国一直使用粗吸湿性粒子催化暖积云,近年来的随机化试验也证明能增加降水,但是降水的增加是4 h后在被催化云的新生云中出现的。这些结果重新激起人们对暖云催化的兴趣,成为当前国际云雾物理和人工影响天气领域的热点问题之一。
It has been 70 years since the fog was dripped with calcium chloride. Later, fine salt particles or salt solutions were also used to catalyze the warm cloud, hoping they formed a rainy cloud in the cloud, initiating or accelerating the collision process to increase precipitation. In the 1960s, airplanes used to spread salt and ground salt became the main method of artificially influencing the warm cloud in our country, which generally reflected the effect of increasing rainfall. Due to the limited conditions at that time, no rigorous scientific verification was carried out. At the same time, Large, on the plane and corrosion has been shelved. More than a decade ago, South Africa developed a new type of flaming bomb technique that produces hygroscopic particles during artificial rainfall, which is used for catalysis by warm convective clouds. The statistically significant precipitation enhancement effect was obtained through randomization tests. This result was reported in Mexico On the other hand, Thailand has been using crude hygroscopic particles to catalyze the warm cumulus cloud. In recent years, randomization tests have also proved to increase precipitation, but the increase in precipitation is 4 h after the cloud of newly formed cloud appeared. These results have rekindled people’s interest in warm cloud catalysis and become one of the hot issues in the current international field of cloud physics and artificial weather.