Electrical Conditions in Thunderclouds

雷云中的电力状况

• 批准号: 8919697
• 负责人: William Winn
• 金额: $ 41.01万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-01 至 1993-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8919697&HistoricalAwards=false
• 关键词: Electrical; Conditions; Thunderclouds

Using aircraft and radar observations from current field programs and those in 1984 and 1987, we propose to look for downdrafts that carry charge near cloud boundaries, which is a basic prediction of one hypothesis of electrification. For another hypothesis, which involves ice pellets and ice crystals, we propose to build the facilities required to find out whether or not ice pellets carry sufficient current toward the main region of negative charge to account for the growth of the charge. From telemetered airplane data we will calculate and display during flights the approximate locations of charge along with radar reflectivity in order to guide the airplane to regions where ice particles are postulated to be carrying current toward the main region of negative charge. Our present vertically- scanning 3-cm radar will be modified so that aircraft data can be superimposed upon the radar reflectivity. We also propose to build a charge sensor that is specifically designed to be compatible with existing probes that record the images of particles.//

利用飞机和雷达对海流场的观测 计划和那些在1984年和1987年，我们建议寻找 下沉气流在云边界附近携带电荷，这是一个 一种电气化假说的基本预测。 为 另一种假说，涉及冰球和冰晶， 我们建议建立所需的设施，以查明是否 或没有冰粒携带足够的电流向主 负电荷区域来解释 消费标准. 从遥测的飞机数据，我们将计算， 在飞行过程中显示电荷沿着的大致位置 利用雷达反射率来引导飞机 冰粒被认为携带着电流 负电荷的主要区域。 我们的垂直礼物- 扫描3厘米雷达将被修改，以便飞机数据可以 叠加在雷达反射率上。 我们亦建议 建造一个电荷传感器， 与现有的记录粒子图像的探针兼容。//