Aerosol effects on the enhancement of cloud-to-ground lightning over major urban areas of South Korea

Kar, Sanjib; Liou, Yuei-An; Ha, Kyung‐Ja

doi:10.1016/j.atmosres.2008.09.004

Cited by 93 publications

(71 citation statements)

References 30 publications

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“…On the other hand, Naccarato et al (2003) reported a positive correlation between PM 10 concentration and CG lightning over southern Brazil. Similar reports are also found in the literature indicating a possible relationship between CG lightning and both PM 10 and SO 2 concentration (Kar et al, 2009). Atmospheric pollutants play a crucial role in the various development stages and formation of local weather system.…”

Section: Introductionsupporting

confidence: 78%

“…Near-surface SPM and PM 10 contribute significantly to increase AOD and hence serve as CCN and influence lightning activity. These results strongly support that pollution plays a key role in lightning enhancement (Steiger and Orville, 2003;Naccarato et al, 2003;Soriano and Pablo, 2002;Kar et al, 2009). Additional investigation suggests that the NO x concentration on days with lightning activity is more than 2-fold compared to the nonlightning days while the O 3 concentration is increased 1-fold during premonsoon lightning activity.…”

Section: Discussionsupporting

confidence: 63%

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Analysis of cloud-to-ground lightning and its relation with surface pollutants over Taipei, Taiwan

Kar

Liou

2014

Ann. Geophys.

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Abstract. Premonsoon (March-April) cloud-to-ground (CG) lightning activity over Taipei, Taiwan, is analyzed in relation to surface pollutants like particulate matter (PM 10 ), sulfur dioxide (SO 2 ), nitrogen oxides (NO x ) and ozone (O 3 ) concentration for a period of 6 years (2005)(2006)(2007)(2008)(2009)(2010). Other surface parameters like aerosol optical depth and cloud top temperature are also investigated taking data from Moderate Resolution Imaging Spectroradiometer satellite products. Results reveal that SO 2 is more strongly associated with CG lightning activity compared to PM 10 concentration. Other surface pollutants like NO x and O 3 also show strong linear association with CG lightning flashes. Additional investigations have also been performed to extreme lightning events, particularly to a few long-lasting lightning episodes considering the concentrations of NO x and O 3 found on days with no lightning activity as representative of the background concentration levels of the said two parameters. Results indicate that the NO x concentration on days with lightning activity is more than 2-fold compared to the non-lightning days while the O 3 concentration is increased by 1.5-fold. Such increase in NO x and O 3 concentration on days with lightning strongly supports the transport phenomena of NO x and O 3 from the upper or middle troposphere to the lower troposphere by downdraft of the thunderstorm during its dissipation stage. Overall, studies suggest that enhanced surface pollution in a near-storm environment is strongly related to the increased lightning activity, which in turn increases the surface NO x level and surface O 3 concentration over the area under study.

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Section: Introductionsupporting

confidence: 78%

Section: Discussionsupporting

confidence: 63%

Analysis of cloud-to-ground lightning and its relation with surface pollutants over Taipei, Taiwan

Kar

Liou

2014

Ann. Geophys.

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“…Figure 6 presents the correlation between the AOD and lightning flash density for JJAS. The results show that the lightning flash density was positively correlated with the AOD (R = 0.84 for June, R = 0.91 for July, R = 0.94 for August and R = 0.9 for September), which is in accordance with some earlier studies [12][13][14][15][16][17][18][19][20][21][22][23][24]. The dependence of the electrical activity and AOD displays a positive correlation, which suggests that the enhanced aerosol loading is one of the important reasons for the increase in lightning activity.…”

Section: Relationship Between Lightning Flash Density and Aodsupporting

confidence: 80%

Total Lightning Flash Activity Response to Aerosol over China Area

et al. 2017

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Twelve years of measurements of aerosol optical depth (AOD), cloud fraction, cloud top height, ice cloud optical thickness and lightning flash density from 2001 to 2012 have been analyzed to investigate the effect of aerosols on electrical activity over an area of China. The results show that increasing aerosol loading inspires the convective intensity, and then increases the lightning flash density. The spatial distribution of the correlation between aerosol loading and electrical activity shows a remarkable regional difference over China. The high-correlation regions embody the positive aerosol microphysical effect on the intensity of the electrical activity, while the large-scale processes may play the main role in convection development and producing lightning in low-correlation regions.

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“…Third, increases in positive-polarity CGs have been attributed to elevated equivalent potential temperatures (Williams and Satori 2004;Williams et al 2005) and to the thunderstorm's ingestion of smoke from fires (Lyons et al 1998;Murray et al 2000). Moreover, it has long been known that aerosols play an important role in climate because they affect the radiative balance of the Earth-atmosphere system (Mitchell 1971), and at the same time increased aerosol loading has been linked to enhancements of CG lightning activity (Kar et al 2009;Yuan et al 2011).…”

Section: Physical Linkages and Impactsmentioning

confidence: 99%

Variability of CONUS Lightning in 2003–12 and Associated Impacts

Koshak

Cummins

Buechler

et al. 2015

Journal of Applied Meteorology and Climatology

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Changes in lightning characteristics over the conterminous United States (CONUS) are examined to support the National Climate Assessment (NCA) program. Details of the variability of cloud-to-ground (CG) lightning characteristics over the decade 2003-12 are provided using data from the National Lightning Detection Network (NLDN). Changes in total (CG 1 cloud flash) lightning across part of the CONUS during the decade are provided using satellite Lightning Imaging Sensor (LIS) data. The variations in NLDN-derived CG lightning are compared with available statistics on lightning-caused impacts to various U.S. economic sectors. Overall, a downward trend in total CG lightning count is found for the decadal period; the 5-yr mean NLDN CG count decreased by 12.8% from 25 204 345.8 (2003-07) to 21 986 578.8 (2008-12). There is a slow upward trend in the fraction and number of positive-polarity CG lightning, however. Associated lightning-caused fatalities and injuries, and the number of lightning-caused wildland fires and burn acreage also trended downward, but crop and personal-property damage costs increased. The 5-yr mean LIS total lightning changed little over the decadal period. Whereas the CONUSaveraged dry-bulb temperature trended upward during the analysis period, the CONUS-averaged wet-bulb temperature (a variable that is better correlated with lightning activity) trended downward. A simple linear model shows that climate-induced changes in CG lightning frequency would likely have a substantial and direct impact on humankind (e.g., a long-term upward trend of 18C in wet-bulb temperature corresponds to approximately 14 fatalities and over $367 million in personal-property damage resulting from lightning).

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Aerosol effects on the enhancement of cloud-to-ground lightning over major urban areas of South Korea

Cited by 93 publications

References 30 publications

Analysis of cloud-to-ground lightning and its relation with surface pollutants over Taipei, Taiwan

Analysis of cloud-to-ground lightning and its relation with surface pollutants over Taipei, Taiwan

Total Lightning Flash Activity Response to Aerosol over China Area

Variability of CONUS Lightning in 2003–12 and Associated Impacts

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