Warm Season Lightning Distributions over the Florida Peninsula as Related to Synoptic Patterns
Warm Season Lightning Distributions over the Florida Peninsula as Related to Synoptic Patterns
复制标题
佛罗里达半岛暖季闪电分布与天气模式的关系
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
R. Holle
中科院分区：
文献类型：
--
作者：
Todd P. Lericos;H. Fuelberg;A. Watson;R. Holle
摘要：在 1989 年至 1998 年温暖季节期间，对来自国家闪电探测网络的云对地闪电数据进行了检查。闪电数据根据副热带高压脊的位置（即佛罗里达州北部、佛罗里达州南部和佛罗里达州境内）以及其他常见流类型进行分层。每天都会根据研究区域内三个站点的无线电探空仪得出的低空风进行流态分析。针对每个流态在每小时、每天（24 小时）和夜间时段生成闪电密度图。 24 小时期间的结果表明，佛罗里达州海岸线的复杂性产生了四个闪电密度相对较大的区域：坦帕、迈尔斯堡、西棕榈滩和卡纳维拉尔角附近。研究发现，夜间闪电主要发生在近海——与墨西哥湾流、海岸线方向、盛行气流和陆风有关。副热带高压脊相对于佛罗里达半岛的位置是...
Abstract Cloud-to-ground lightning data from the National Lightning Detection Network are examined over the Florida peninsula during the warm seasons of 1989 through 1998. The lightning data are stratified according to the location of the subtropical ridge (i.e., north of Florida, south of Florida, and within Florida) as well as other common flow types. Each day is placed into a flow regime based on radiosonde-derived low-level winds at three stations within the study area. Maps of lightning flash density are generated for each flow regime over hourly, daily (24 h), and nocturnal periods. Results for the 24-h period indicate that complexities in the Florida coastline produce four areas of relatively large flash densities: near Tampa, Fort Myers, West Palm Beach, and Cape Canaveral. Nocturnal lightning is found to occur mostly offshore—related to the Gulf Stream, coastline orientations, the prevailing flow, and land breezes. The location of the subtropical ridge with respect to the Florida peninsula is fou...