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.

雷电检测几年前逐渐成为气象学的新技术。 到目前为止，美国东部有大约六年的闪电数据，美国中部已有两年多的时间，在美国西部大约为期四年，Changnon先生将在国家农作物保险服务公司提供的雷电和有关冰雹造成的农作物损失的数据结合起来，以研究闪电活动与冰雹之间的关系。 在作物和财产保险行业中使用的归一化标准的指导下，即100万美元或更多的损害，Changnon先生还将研究美国过去40年中严重暴风雨的发生如何变化，而衰老规模上的潮湿和干燥期延长。