Spring thunderstorms over Bangalore

Aiya, S. V. Chandrashekhar; Sonde, B.S.

doi:10.1109/proc.1963.2618

Cited by 11 publications

(1 citation statement)

References 15 publications

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“…Considerable work has been carried out over the tropical and extratropical regions on thunderstorm related parameter, namely, lightning by examining the flash data collected through different techniques during the last 2 decades [ Thotappallippi et al , 1992; Price and Rind ,1994a, 1994b; Mackerras and Darveniza , 1994; Orville , 1994; Orville et al , 1997; Hodnaish et al , 1997; Yair et al , 1998; Pinto et al , 1999; Boccippio et al , 2000a, 2000b, 2000c; Nesbitt et al , 2000; Williams et al , 2000; Petersen and Rutledge , 2001; Toracinta et al , 2002]. However, the studies over the Indian region are sparse, except those reported by Aiya and Sonde [1963], Aiya [1965, 1981], Manohar et al [1999], and, recently, Kandalgaonkar et al [2003]. From the studies referenced above and others, it is seen that the latitudinal distribution of thunderstorm activity over the Indian region is different from the rest of the tropics.…”

Section: Introductionmentioning

confidence: 99%

Spatio‐temporal variability of lightning activity over the Indian region

Kandalgaonkar¹

2005

J. Geophys. Res.

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[1] Spatio-temporal variability of lightning activity over the Indian land mass region (8°N-33°N, 73°E-86°E) has been studied using monthly satellite based lightning flash grid (5°Â 5°) data for 5-year (1998-2002) period. These data have been examined for depicting the annual, seasonal, and spatial distribution of the lightning activity. The study revealed the nonlinear relationship between lightning flash density and latitude on the annual timescale, and it is linked with the convective activity, large-scale circulations, land mass gradient, and orography of the region under study. On the seasonal timescale, the nonlinear positive relationships were observed in the premonsoon and monsoon seasons whereas a bimodal variation is observed in the post-monsoon season. The comparison of flash density with maximum surface air temperature shows the existence of nonlinear relationship between the two parameters. The approximate range of increase of flash density per 1°C rise in temperature is 20 to 44%. The lightning flash density shows a pronounced semiannual oscillation over the latitude belts 8°N-28°N.

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Section: Introductionmentioning

confidence: 99%

Spatio‐temporal variability of lightning activity over the Indian region

Kandalgaonkar¹

2005

J. Geophys. Res.

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Seasonal variation of lightning activity over the Indian subcontinent

Ranalkar

Chaudhari

2009

Meteorol Atmos Phys

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Electric fields produced by Florida thunderstorms

Livingston¹,

Krider²

1978

J. Geophys. Res.

106

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Electric fields produced by air mass thunderstorms have been recorded at 25 field mill sites at the NASA Kennedy Space Center (KSC) during the summers of 1975 and 1976. Time‐ and area‐averaged fields produced by individual storms are typically −0.8 to −2.1 kV m−1 during periods of intense lightning activity and usually 2–4 times larger (−2.3 to −4.3 kV m−1) in the final, less active storm periods. The total number of lightning discharges generated by individual storms ranged from 8 to 1987. The average flashing rate per storm was 0.3–9.3 discharges per minute. Large storms tend to evolve through an initial, an active, and a final phase of electrical activity. The average point discharge computed during the active period is 3–4 times less than that computed during the final phase. In 1975, about 71% of all lightning discharges occurred during active storm periods, which in turn represented only about 27% of the total storm durations. In general, the structures of the electrostatic fields produced by lightning discharges in Florida were found to be similar to those in other geographical locations. During active storm periods, 42–52% of all lightning discharges were to ground, and during a final storm period only about 20% were to ground. The fraction of discharges to ground which contained continuing currents ranged from 29 to 46%; the mean duration of 239 ground flashes was about 420 ms. The average density of lightning flashes to ground during 1974 and 1975 at KSC was about 6 km−2 month−1 during the months of June and July.

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Spring thunderstorms over Bangalore

Cited by 11 publications

References 15 publications

Spatio‐temporal variability of lightning activity over the Indian region

Spatio‐temporal variability of lightning activity over the Indian region

Seasonal variation of lightning activity over the Indian subcontinent

Electric fields produced by Florida thunderstorms

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