Diurnal Lightning Variability over the Maritime Continent: Impact of Low-Level Winds, Cloudiness, and the MJO

作者: Katrina S. Virts , John M. Wallace , Michael L. Hutchins , Robert H. Holzworth

DOI: 10.1175/JAS-D-13-021.1

关键词: Wind speedDiurnal cycleMeteorologyThunderstormCloud coverClimatologyEnvironmental sciencePrecipitationLightningDaytimeMadden–Julian oscillation

摘要: AbstractLightning over the Maritime Continent exhibits a pronounced diurnal cycle. Daytime and evening lightning occurs near coastlines mountain slopes, driven by sea valley breezes. Nocturnal morning thunderstorms are touched off where land breezes or converge gravity waves propagating away from regions of vigorous afternoon convection. In this study, modulation cycle precipitation 850-hPa winds, cloudiness, Madden–Julian oscillation (MJO) is investigated using observations World Wide Lightning Location Network (WWLLN) Tropical Rainfall Measuring Mission (TRMM) satellite. The wind speed area-averaged cloudiness shown to be negatively correlated with day-to-day frequency land, thunderstorm occurrence suppressed windward of, enhanced leeward ranges. environmental conditions similarly related in MJO. During break periods, reg...

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