SGER: A Study of Coupling between the Ionosphere and Troposphere via Hurricanes and Tropical Storms

SGER：通过飓风和热带风暴研究电离层和对流层之间的耦合

• 批准号: 0451265
• 负责人: Rebecca Bishop
• 金额: --
• 依托单位: Aerospace Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0451265&HistoricalAwards=false
• 关键词: SGER; Study; Coupling; between; Ionosphere

The possible connection between mesoscale tropospheric storms and ionospheric spread-F events is investigated using fifty years of ionosonde data, and using extensive incoherent scatter radar and microbarograph data. The project aims to determine by correlative testing whether there is a statistically significant association between periods of Spread-F observation and concurrent, identifiable mesoscale disturbances in the tropical troposphere. The electric field strength and direction as well as ion drift velocities will be determined for associated events when possible, and an attempt will be made to ascertain the relationship between the location and time of storms and the associated onset of the F-region ionospheric regularities. This study attempts to conclusively identify or exclude gravity waves generated by storms as a likely source of the density fluctuations, or Kelvin-Helmholtz instabilities, thought to be the precursor to F-region instabilities that generate GPS scintillation events.

使用五十年的Ionosonde数据研究了对流层风暴与电离层扩散F事件之间可能的联系，并使用广泛的不连贯的散射雷达和微射线仪数据进行了研究。 该项目旨在通过相关测试来确定在热带对流层中扩散-F观测周期与并发，可识别的中尺度干扰之间是否存在统计学意义的关联。 在可能的情况下，将确定相关事件的电场强度和方向以及离子漂移速度，并尝试确定暴风雨的位置和时间之间的关系以及F区域离子层规律性的相关发作。 这项研究试图最终识别或排除暴风雨产生的重力波作为密度波动的可能来源或开尔文 - 赫尔姆霍尔茨的不稳定性，这被认为是产生GPS闪烁事件的F-Region不稳定性的前体。