Dynamics and chemistry of marine stratocumulus - DYCOMS II
Dynamics and chemistry of marine stratocumulus - DYCOMS II
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DOI：
10.1175/bams-84-5-579
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发表时间：
2003-05
影响因子：
8
通讯作者：
B. Stevens;D. Lenschow;G. Vali;H. Gerber;A. Bandy;B. Blomquist;J. Brenguier;C. Bretherton;F. B
中科院分区：
文献类型：
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作者：
B. Stevens;D. Lenschow;G. Vali;H. Gerber;A. Bandy;B. Blomquist;J. Brenguier;C. Bretherton;F. B
介绍了第二次海洋层积云动力学和化学（DYCOMS-II）野外研究。实地项目包括在加州圣地亚哥西南偏西的海洋层积云中进行的9次飞行。该计划的目的是更好地了解海洋层积云的物理和动力学。为此，采用了特殊的飞行策略，主要包括夜间飞行，以优化云顶夹带速度的估计，边界层内的大尺度发散，云中的毛毛雨过程，云的微观结构，和气溶胶-云的相互作用。DYCOMS-II期间的云条件非常好，几乎每次飞行都有均匀的多云云覆盖在混合良好的边界层上。虽然手稿的重点是DYCOMS-II的目标和方法，但也提出了一些初步的发现-最重要的是云层似乎比以前的理论工作更少夹带和毛毛雨。
The second Dynamics and Chemistry of Marine Stratocumulus (DYCOMS-II) field study is described. The field program consisted of nine flights in marine stratocumulus west-southwest of San Diego, California. The objective of the program was to better understand the physics a n d dynamics of marine stratocumulus. Toward this end special flight strategies, including predominantly nocturnal flights, were employed to optimize estimates of entrainment velocities at cloud-top, large-scale divergence within the boundary layer, drizzle processes in the cloud, cloud microstructure, and aerosol–cloud interactions. Cloud conditions during DYCOMS-II were excellent with almost every flight having uniformly overcast clouds topping a well-mixed boundary layer. Although the emphasis of the manuscript is on the goals and methodologies of DYCOMS-II, some preliminary findings are also presented—the most significant being that the cloud layers appear to entrain less and drizzle more than previous theoretical work led investigat...