Regional Responses of Lightning Activities to Relative Humidity of the Surface

Abstract

Global flash activity shows great contrast in different regions. Temperature and humidity are the essential meteorological factors that result in this difference. The regional response of lightning activities to the relative humidity (RH) is examined at different longitudes and latitudes using lightning data based on satellite and NCEP metrological observations (from 1995 to 2002). The result indicates that lightning activities respond positively to RH within longitudinal belts where RH is more than 74% and negatively for the region where RH is less than 72%. A similar response is found in latitudinal belts. It can be concluded that higher relative humidity results in more lighting activities at dry regions and less lighting activities at wet regions. The watershed of relative humidity for lightning production is about 72%~74%. Six special regions have been chosen to validate above results and an agreement has been found.

Influence of aerosols on lightning activities in central eastern parts of China

“…This indicates that the effect of surface relative humidity on lightning activity does not change much under relatively clean or polluted conditions. This result is consistent with the study of Xiong et al (2006) which found that lightning activities response to surface relative humidity with a watershed of about 72-74%. The increase of relative humidity will lead to the enhancement of the convection and lightning activity (Shi et al, 2018).…”

“…The east part is located in the plain by the sea, while the west part is mostly in the plateau. However, lightning activity can also be affected by many other meteorological factors like CAPE, temperature, relative humidity (Williams, 1994;Xiong et al, 2006;Bang and Zipser, 2016), and so on. The presence of a large number of cities and intensive human activities in the eastern plain region leads to the emission of a large number of air pollutants, resulting in higher concentrations of particulate matter over the eastern area.…”

“…Lightning is also one of the important sources of nitrogen oxides in the atmosphere, and thus the occurrence of lightning has a significant influence on global atmospheric chemistry (Schumann and Huntrieser, 2007;Murray, 2016;Tost, 2017). Therefore, research on the response of lightning to various meteorological factors and climate change remains an important research topic (Reeve and Toumi, 1999;Xiong et al, 2006;Romps et al, 2014;Kotroni and Lagouvardos, 2016;Dewan et al, 2018;Finney et al, 2018). Therefore, research on the response of lightning to various meteorological factors and climate change remains an important research topic (Reeve and Toumi, 1999;Xiong et al, 2006;Romps et al, 2014;Kotroni and Lagouvardos, 2016;Dewan et al, 2018;Finney et al, 2018).…”

Climate indicators for lightning over sea, sea–land mixed and land‐only surfaces in India

“…This indicates the important role of surface heat flux in converting CAPE into kinetic energy of updraft in the deep convective systems (Yuan and Qie, 2005;Satori et al, 2009). Williams et al (2005) attribute the increase in lightning activity to the height of thundercloud base, while Xiong et al (2006) suggest that the lightning activity inhibits under high humid environment. Carey and Buffalo (2007) relates lightning activity to the dryness in the atmosphere.…”

Development and validation of a reversed-phase column liquid chromatographic method for simultaneous determination of two novel gliptins in their binary mixtures with Metformin

“…Literature survey reveals that some methods have been reported for determination of MET in mixtures including LC/MS/MS [10] and HPLC [11][12][13][14].…”