Abstract Daily variations of the Atmospheric Electric Field (AEF) allow to observe separately the atmospheric electricity due to global and local factors. Observations of the AEF are made for three different sites of Pakistan during fair weather conditions. These three sites are Islamabad (ISB), Muzaffarabad (MZF) and Balakot (BKT). Analyses of the diurnal variations of the atmospheric electric field for these sites are discussed in this paper with respect to annual and seasonal behavior. Muzaffarabad and Balakot sites show two daily maxima and Islamabad site shows single maxima, characteristic of local influences, such as the aerosol, sunrise effect and “Austausch effect” or exchange layer effect. Later, these results are compared globally with land based measurements available in the literature and with the Carnegie curve. Local effects found to be dominant among these sites with respect to one another due to geographical location, climate and different meteorological parameters. This is the first different creation of the ISB-MZF-BKT database which will be very effective to improve the information of atmospheric electricity in the complex processes due to weather and climate. This database from Pakistan will be useful for the scientific community for further understating and investigation of the Global Electric Circuit (GEC).

中文翻译：

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巴基斯坦北部局地和全球大气电场对比分析

摘要 大气电场（AEF）的日变化允许分别观察由于全球和局部因素引起的大气电力。在晴朗的天气条件下，对巴基斯坦的三个不同地点进行了 AEF 观测。这三个站点是伊斯兰堡 (ISB)、穆扎法拉巴德 (MZF) 和巴拉科特 (BKT)。本文讨论了这些站点大气电场日变化的年度和季节性变化分析。Muzaffarabad 和 Balakot 站点显示两个每日最大值，而伊斯兰堡站点显示单个最大值，具有当地影响的特征，例如气溶胶、日出效应和“Austausch 效应”或交换层效应。随后，将这些结果与文献中可用的陆基测量结果和卡内基曲线进行全球比较。由于地理位置、气候和不同的气象参数，在这些站点之间发现局部效应占主导地位。这是ISB-MZF-BKT数据库的第一个不同创建，它将非常有效地改善由于天气和气候导致的复杂过程中的大气电力信息。这个来自巴基斯坦的数据库将有助于科学界进一步了解和调查全球电路 (GEC)。