Lightning response to smoke from Amazonian fires

作者: Orit Altaratz , Ilan Koren , Yoav Yair , Colin Price

DOI: 10.1029/2010GL042679

关键词: Environmental scienceThunderstormConvectionAtmospheric sciencesMeteorologyAerosolLightningSmokeIntensity (heat transfer)AmazonianAtmosphere

摘要: [1] The effect of anthropogenic aerosols on clouds has the potential to be a key component for climate change predictions, yet is one least understood. It possible that high aerosol loading can convection intensity and hence electrical activity thunderstorm clouds. Focusing Amazon dry season, where thousands man-made forest fires inject smoke into atmosphere, we studied effects thunderclouds. We used ground-based World-Wide Lightning Location Network (WWLLN) lightning measurements together with Aqua-MODIS cloud data show evidence transition between two opposing The first microphysical which manifested in an increase convective (and activity), followed by radiative becomes dominant leading decrease intensity.

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