Studies of Thunderstorm and Severe Storm Frequencies

雷暴和强风暴频率的研究

• 批准号: 8918475
• 负责人: Stanley Changnon
• 金额: $ 9.1万
• 依托单位: Agricultural Education Consulting
• 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: 1990-04-15 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918475&HistoricalAwards=false
• 关键词: Studies; Thunderstorm; Severe; Storm; Frequencies

Lightning detection developed several years ago gradually emerges as a new technology in meteorology. By now, there are approximately six years of lightning data for the eastern U.S., more than two years for the central U.S., and approximately four years for the western U.S. Under this award, Mr. Changnon will combine this archive on lightning and data on crop loss due to hail, provided by the National Crop Insurance Service, to examine the relation between lightning activity and hailstorms. Guided by a normalized criterion used in the crop and property insurance industry, that is, damage of $1 million or more, Mr. Changnon will also examine how the occurrence of severe storms in the U.S. varied in the last forty years with prolonged wet and dry periods on the decadal scale.

几年前开发的闪电探测逐渐成为气象新技术。 到目前为止，美国东部已有大约六年的闪电数据，美国中部有两年多的闪电数据，美国西部大约有四年的闪电数据。根据该奖项，昌农先生将结合这些闪电档案和国家农作物保险局提供的冰雹造成的作物损失数据，研究闪电活动与冰雹之间的关系。 在农作物和财产保险行业使用的标准化标准（即损失达到 100 万美元或以上）的指导下，Changnon 先生还将研究过去 40 年来美国严重风暴的发生情况如何变化，以及十年尺度的长期干湿期。