Electric Hurricanes
Writing by mustafa on Sunday, 15 of June , 2008 at 10:03 am
>лаптопraman amplifiericanes are Earth’s most deadly storms, causing tremendous devastation around the globe every year. While forecasters are quite successful in predicting the trajectories of hurricanes days in advance, hurricane intensification or weakening is less accurately predicted. In this paper we present evidence that the maximum sustained winds (and minimum pressures) in hurricanes are preceded by increases in lightning activity approximately one day before the peak winds. This is the first study to track lightning activity in 56 hurricanes around the globe, during their entire lifetimes. All these hurricanes showed highly significant positive correlations between lightning activity and maximum sustained winds, with a mean correlation coefficient of 0.82. We suggest that increases in lightning activity in hurricanes is related to enhanced convection that influences the rate of moistening of the lower troposphere, which in turn influences the intensification of hurricanes. Since lightning activity can now be monitored continuously in hurricanes at any location around the globe, lightning data may contribute to better hurricane forecasts in the future.
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