Lightning Association with Aerosol and Relative Humidity Over Andhra Pradesh and Adjacent Area in Southeast India: A General Prospection

IF 1.9 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

pure and applied geophysics Pub Date : 2024-05-25 DOI:10.1007/s00024-024-03509-w

Deen Mani Lal, Nandivada Umakanth

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Abstract

The association of lightning yield per vertical column aerosol of unit cross section (AOD) with relative humidity and rainfall has been investigated using surface observation as well as satellite data for the south-east Indian peninsula, especially Hyderabad and adjacent areas, from 2019 to 2022. For a healthy finding, the study domain area has been separated into three sub-regions: Region R1 (Lat: 17.7–19.5; Lon: 78.5–84.5); R2 (Lat: 15.1–17.5; Lon: 76–80.1); and R3 (Lat: 12.5–15; Lon: 76–80.1). During the investigation, uneven relationship between aerosol and lightning has been found. The relationship between them increases with decreasing latitude (moving towards the south). It has also been found that the yield of lightning per AOD, cloud per AOD, and rainfall increases when relative humidity increases. However, lightning per rainfall is non-linearly associated with relative humidity. Most of the clouds in region R2 have lightning, with or without rain. A regression equation has been investigated that successfully captures the lightning that occurred in the regions R1 and R2.

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印度东南部安得拉邦及邻近地区闪电与气溶胶和相对湿度的关系：总体展望

利用地表观测数据和卫星数据，研究了 2019 年至 2022 年印度半岛东南部，特别是海得拉巴及邻近地区单位截面垂直气溶胶（AOD）的闪电产量与相对湿度和降雨量的关系。为了得出健康的结论，研究区域被划分为三个子区域：区域 R1（纬度：17.7-19.5；经度：78.5-84.5）；区域 R2（纬度：15.1-17.5；经度：76-80.1）；区域 R3（纬度：12.5-15；经度：76-80.1）。在调查过程中发现，气溶胶与闪电之间的关系并不平衡。它们之间的关系随着纬度的降低（向南移动）而增加。研究还发现，当相对湿度增加时，每 AOD 的雷电量、每 AOD 的云量和降雨量都会增加。不过，每降雨量的闪电与相对湿度呈非线性关系。R2 区域的大部分云都有闪电，无论是否有雨。研究得出的回归方程成功地捕捉到了 R1 和 R2 区域发生的闪电。

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来源期刊

pure and applied geophysics 地学-地球化学与地球物理

CiteScore

4.20

自引率

5.00%

发文量

240

审稿时长

9.8 months

期刊介绍： pure and applied geophysics (pageoph), a continuation of the journal "Geofisica pura e applicata", publishes original scientific contributions in the fields of solid Earth, atmospheric and oceanic sciences. Regular and special issues feature thought-provoking reports on active areas of current research and state-of-the-art surveys. Long running journal, founded in 1939 as Geofisica pura e applicata Publishes peer-reviewed original scientific contributions and state-of-the-art surveys in solid earth and atmospheric sciences Features thought-provoking reports on active areas of current research and is a major source for publications on tsunami research Coverage extends to research topics in oceanic sciences See Instructions for Authors on the right hand side.