An Experimental Study of the Fluxes in the Tropical Marine Boundary Layer as Part of HARP

大气(边界层)最低1~3公里范围内热量、动量和水汽的重新分配对于理解从局地尺度天气到气候现象的演变和本质具有重要意义。关于对流边界层和伴随的对流云如何在垂直方向重新分配这些量，我们的知识存在空白。对于大气数值模式来说，边界层过程的精确参数化是非常重要的。在1985年的一次实地考察中，首席调查员研究了夏威夷海岸外雨带海洋边界层中积云卷吸/剥离的性质。首席调查员将扩展她以前的工作，将使用结果来测试海洋边界层的现有参数化。此外，她还计划调查最近的研究提出的建议，即海洋边界层的宏观性质在一定程度上是由云凝结核决定的。

The redistribution of heat, momentum and moisture within the lowest one to three kilometers of the atmosphere (boundary layer) is of importance for understanding the evolution and nature of phenomena from local scale weather to climate. There are gaps in our knowledge of exactly how the convective boundary layer and the accompanying convective clouds redistribute these quantities in the vertical. For atmospheric numerical models, it is important that boundary layer processes be accurately parameterized. In an field expedition in 1985, the Principal Investigator studied the nature of entrainment/detrainment in cumulus clouds in the marine boundary layer in rainbands off the coast of Hawaii. The Principal Investigator will extend her previous work will use the results to test existing parameterizations of the marine boundary layer. Further, she also plans to investigate suggestions emanating from recent studies that macroscopic properties of the marine boundary layer are determined in part by cloud condensation nuclei.//