Quantifying the Effect of the Upper Atmospheric Electric Potential on Lower Atmospheric Temperature and Pressure

量化高层大气电势对低层大气温度和压力的影响

• 批准号: NE/I024852/1
• 负责人: Gareth Chisham
• 金额: $ 47.26万
• 依托单位: British Antarctic Survey
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FI024852%2F1
• 关键词: Quantifying; Effect; Upper; Atmospheric; Electric

Weather and climate prediction are inevitably limited by incomplete knowledge of the Earth system and its external influences. One under-explored and consequently controversial area of research is the meteorological influence of the Sun through processes other than direct radiation, such as variations in the Earth-ionosphere electric potential in the global electric circuit driven by solar wind-magnetosphere-ionosphere interactions. Previous work has suggested that a relationship exists (often termed the Mansurov effect) but previous correlations have been indirect and the effects most likely underestimated. BAS has considerable expertise in the measurement and understanding of the ionospheric electric potential pattern using the Super Dual Auroral Radar Network (SuperDARN). We propose to use 15 years of SuperDARN electric potential measurements from both the northern and southern hemispheres to conduct the most comprehensive analysis to date of the relationship between the ionospheric electric potential and atmospheric temperature and pressure. If this analysis confirms a significant relationship then its consequences for weather and climate will be assessed by studying the climatologies for different ionospheric potential states and evaluating the possible effects on atmospheric modes like the North Atlantic Oscillation.

天气和气候预测不可避免地受到对地球系统及其外部影响的不完整了解的限制。一个探索不足因而引起争议的研究领域是太阳通过直接辐射以外的过程对气象的影响，例如太阳风-磁层-电离层相互作用驱动的全球电路中地球-电离层电势的变化。以前的研究表明存在一种关系（通常称为Mansurov效应），但以前的相关性是间接的，而且这种影响很可能被低估。在利用超级双极光雷达网测量和了解电离层电势模式方面，BAS拥有相当丰富的专门知识。我们建议利用15年来对北方和南半球的SuperDARN电势测量，对电离层电势与大气温度和压力之间的关系进行迄今为止最全面的分析。如果这一分析证实存在重要关系，则将通过研究不同电离层电位状态的气候学并评价对北大西洋涛动等大气模式的可能影响，评估其对天气和气候的影响。

项目成果

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

太阳风-大气电-云微物理与天气和气候的联系

• DOI: 10.1016/j.jastp.2015.10.019
• 发表时间: 2016-11
• 期刊: Journal of Atmospheric and Solar-Terrestrial Physics
• 影响因子: 1.9
• 作者: MaiMai Lam;brian tinsley
• 通讯作者: brian tinsley

The interplanetary magnetic field influences mid-latitude surface atmospheric pressure

• DOI: 10.1088/1748-9326/8/4/045001
• 发表时间: 2013-04
• 期刊: Environmental Research Letters
• 影响因子: 6.7
• 作者: M. Lam;G. Chisham;M. Freeman

Regional, seasonal, and inter-annual variations of Antarctic and sub-Antarctic temperature anomalies related to the Mansurov effect

• DOI: 10.1088/2515-7620/ab4a84
• 发表时间: 2019-10
• 期刊: Environmental Research Communications
• 影响因子: 2.9
• 作者: M. Freeman;M. Lam

IMF-driven change to the Antarctic tropospheric temperature due to the global atmospheric electric circuit

• DOI: 10.1016/j.jastp.2017.08.027
• 发表时间: 2017-08
• 期刊: Journal of Atmospheric and Solar-Terrestrial Physics
• 影响因子: 1.9
• 作者: M. Lam;M. Freeman;G. Chisham