The 2019/20 Australian wildfires generated a persistent smoke-charged vortex rising up to 35 km altitude
作者： Sergey Khaykin , Bernard Legras , Silvia Bucci , Pasquale Sellitto , Lars Isaksen
DOI: 10.1038/S43247-020-00022-5
关键词:
摘要: The Australian bushfires around the turn of year 2020 generated an unprecedented perturbation stratospheric composition, dynamical circulation and radiative balance. Here we show from satellite observations that resulting planetary-scale blocking solar radiation by smoke is larger than any previously documented wildfires same order as forcing produced moderate volcanic eruptions. A striking effect heating intense patch was generation a self-maintained anticyclonic vortex measuring 1000 km in diameter featuring its own ozone hole. highly stable persisted stratosphere for over 13 weeks, travelled 66,000 lifted confined bubble moisture to 35 altitude. Its evolution tracked several satellite-based sensors successfully resolved European Centre Medium-Range Weather Forecasts operational system, primarily based on data. Because are expected increase frequency strength changing climate, suggest extraordinary events this type may contribute significantly global composition coming decades.
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