Dust Lofting and Ingestion by Supercell Storms
Dust Lofting and Ingestion by Supercell Storms
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超级单体风暴的扬尘和吸入
DOI：
10.1175/jas-d-11-0222.1
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发表时间：
2012
影响因子：
3.1
通讯作者：
Van den Heever
中科院分区：
文献类型：
--
作者：
Robert;B.;Seigel;Susan;C.;Van den Heever
摘要最近有关气溶胶对云微物理影响的研究表明，需要了解矿物粉尘夹带到潮湿的对流。本研究的目的是研究的途径，其中nonmicrophysical活性矿物粉尘夹带到超级单体风暴内三个常见的尘埃制度。区域大气模拟系统（RAMS）与一个交互式的灰尘模型，允许表面的排放是用来实现这一目标。首先，一个超级细胞内模拟已经尘土飞扬的环境（EXP-BACKGROUND）调查摄入纯粹从背景源。其次，在一个干净的背景环境中模拟超级单体，并通过交互式尘埃模型（EXP-STORM）来研究大气中唯一的尘埃来源是由于风暴本身的制度。最后，通过在超级单体前引入低层辐合边界来模拟超级单体，研究了外流边界对沙尘的吹扫作用。
AbstractRecent research pertaining to aerosol impacts on cloud microphysics has shown a need for understanding mineral dust entrainment into moist convection. The goal of this study is to examine the pathways in which nonmicrophysically active mineral dust is entrained into supercell storms within three commonly observed dust regimes. The Regional Atmospheric Modeling System (RAMS) with an interactive dust model that allows for surface emission was used to achieve this goal.First, a supercell is simulated within an already dusty environment (EXP-BACKGROUND) to investigate ingestion purely from a background source. Second, the supercell is simulated within a clean background environment and lofts its own dust via the interactive dust model (EXP-STORM) to investigate the regime in which the only source of dust in the atmosphere is due to the storm itself. Finally, the supercell is simulated with a low-level convergence boundary introduced ahead of the supercell to investigate dust lofting by outflow boundar...
影响因子：
4.4
作者：
Knippertz, P.;Deutscher, C.;Schuetz, L.
通讯作者：
Schuetz, L.