Relationship between aerosol and lightning over Indo-Gangetic Plain (IGP), India

Lal, D.; Ghude, Sachin D.; Mahakur, M.; Waghmare, R.T.; Tiwari, Suresh; Srivastava, Manoj; Meena, G. S.; Chate, D. M.

doi:10.1007/s00382-017-3851-2

Cited by 25 publications

(22 citation statements)

References 108 publications

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“…Yuan et al (2011) examined lightning data from the lightning-imaging sensor (LIS) on board the Tropical Rainfall Measuring Mission (TRMM) satellite and MODIS AOD (aerosol optical depth). Similarly, recent results presented by Wang et al (2018) and Lal et al (2018) indicated that the lightning density increases significantly with AOD under relatively low aerosol concentration conditions, while lightning activity is inhibited when the aerosol concentration is relatively high. The pioneering work by Tan et al (2016) revealed that aerosol radiative effects may be one of the main reasons for the decrease of the lightning flash density in a long period by analyzing lightning data, AOD, surface temperature and convective available potential energy (CAPE) during summer.…”

Section: Introductionsupporting

confidence: 67%

“…The latent heat flux is thus reduced, the atmosphere becomes more stable and the occurrence of thunderstorms is suppressed (Kaufman et al, 2002;Koren et al, 2004Koren et al, , 2008Li et al, 2017a). Similarly, recent results presented by Wang et al (2018) and Lal et al (2018) indicated that the lightning density increases significantly with AOD under relatively low aerosol concentration conditions, while lightning activity is inhibited when the aerosol concentration is relatively high.…”

Section: Introductionmentioning

confidence: 73%

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

Shi

Wang

Tan

et al. 2020

Atmospheric Science Letters

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Time series data of lightning flash rates, aerosol optical depth (AOD), surface relative humidity, potential temperature, and convective available potential energy (CAPE) for 14 consecutive summers (2001-2014) over central eastern parts of China (32.5 -40 N, 100 -120 E) have been analyzed to investigate the impact of aerosol on the lightning flash rate. The Pearson correlation and the partial correlation are used to study the linear correlations between the lightning flash rate and AOD, potential temperature, surface relative humidity, and CAPE. The results show that the lightning flash rate is positively correlated (r = .64) with AOD under relatively clean conditions (AOD < 1.0), which may result from aerosol microphysical effect. In the situation of high aerosol concentration (AOD > 1.0), the correlation between AOD and lightning flash rate is not obvious (r = −.06), which may be due to the radiation effect of aerosol and the decrease of the number of large ice particles caused by excessive aerosol concentration. CAPE and surface relative humidity are both positively correlated with the lightning flash rates under relatively clean (AOD < 1.0) and relatively polluted (AOD > 1.0) conditions. Potential temperature is moderate positively correlated with the lightning flash rate under relatively clean conditions (r = .51, AOD < 1.0) but shows no significant linear relationship under relatively polluted conditions (r = .07, AOD > 1.0). K E Y W O R D Saerosol, cloud microphysics, correlation coefficient, lightning activity

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Section: Introductionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 73%

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

Shi

Wang

Tan

et al. 2020

Atmospheric Science Letters

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“…The land of India is characterized by great diversity in its physical features, with a total area of 3,287,263 square kilometer, and is located in southeast Asia (Gadgil and Guha 1993). India is configured with a series of mountain ranges in the north and northeast, great Indian Desert in the northwest, Indo-Gangetic plain in center, dissected plateaus in the south and vast ocean in the southeast-southwest direction (Lal et al 2018;Valdiya 2016). Based on the variations in its physiographic structure and relief, India is called a 'subcontinent'.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal dynamics of temperature and precipitation with reference to COVID-19 pandemic lockdown: perspective from Indian subcontinent

Sengupta

Mohinuddin

Arif

2021

Environ Dev Sustain

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This study exclusively focuses on spatial and temporal change of temperature and precipitation before and after COVID-19 lockdown and also examines the extent of their variation and the spatial relationship between them. Our main objective is to analyze the spatiotemporal changes of two climatic variables in Indian subcontinent for the period of 2015-2020. Monthly precipitation and temperature data are collected from NOAA and NASA for January to May month across the four zones (northeast, northwest, central, and peninsular zone) of India. To conduct a zone-wise statistical analysis, we have adopted statistical process control (SPC) methods like exponentially weighted moving average (EWMA) control charts, individual charts (I-Chart) to detect the shift in temperature and precipitation over the study period and Pearson correlation coefficient applied to measure the spatial association between the two variables. The findings revealed that temperature parameter has experienced a lot of positive and negative trends in the span of 6 years and detected a weak to moderate negative correlation in many parts of the country in April 2020 after 2016. This study also identified a weak negative correlation mainly in NE zone in 2020 after 2017. This research provides vital scientific contribution to the effects of monthly temperature and precipitation before and after COVID-19 pandemic lockdown.

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“…Lightning and aerosol loading are also affected by the local meteorological conditions [31]. It is very challenging to disentangle the impacts of thermodynamics and aerosols on cloud properties and lightning production [32].…”

Section: Introductionmentioning

confidence: 99%

Cloud-to-Ground Lightning Response to Aerosol over Air-Polluted Urban Areas in China

et al. 2021

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The effect of aerosols on lightning has been noted in many studies, but much less is known about the long-term impacts in air-polluted urban areas of China. In this paper, 9-year data sets of cloud-to-ground (CG) lightning, aerosol optical depth (AOD), convective available potential energy (CAPE), and surface relative humidity (SRH) from ground-based observation and model reanalysis are analyzed over three air-polluted urban areas of China. Decreasing trends are found in the interannual variations of CG lightning density (unit: flashes km-2day-1) and total AOD over the three study regions during the study period. An apparent enhancement in CG lightning density is found under conditions with high AOD on the seasonal cycles over the three study regions. The joint effects of total AOD and thermodynamic factors (CAPE and SRH) on CG lightning density and the percentage of positive CG flashes (+ CG flashes/total CG flashes×100; PPCG; unit: %) are further analyzed. Results show that CG lighting density is higher under conditions with high total AOD, while PPCG is lower under conditions with low total AOD. CG lightning density is more sensitive to CAPE under conditions with high total AOD.

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Relationship between aerosol and lightning over Indo-Gangetic Plain (IGP), India

Cited by 25 publications

References 108 publications

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

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

Spatiotemporal dynamics of temperature and precipitation with reference to COVID-19 pandemic lockdown: perspective from Indian subcontinent

Cloud-to-Ground Lightning Response to Aerosol over Air-Polluted Urban Areas in China

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