海面状态参数化对海上大气边界层数值模拟的影响研究

摘要

As the surface of marine atmospheric boundary layer is complicated and changeable. the sea state parameterization plays a very crucial role in the numerical simulation of marine atmospheric boundary layer. In this paper, sensitivity test was carried on by using a high-resolution model of the marine atmospheric boundary layer, and the impact of numerical simulation of marine atmospheric boundary layer with several different sea surface parameterizations has been discussed. The results showed that: under the middle and low wind speed condition, the major differences appeared in the interface between atmospheric boundary layer and free atmosphere; it should use the parameters of the sea state parameterization to improve the simulation of the atmospheric boundary layer.%由于海上大气边界层的下垫面是复杂多变的海面,因此海面状态的参数化对海上大气边界层数值模拟起到十分关键的作用.采用高分辨率的大气边界层模式进行敏感性试验研究,讨论了不同海面参数化方案对海上大气边界层数值模拟产生的影响.结果表明:几种海面粗糙度参数化方案在中低风速下模拟垂直结构主要的差异出现在边界层和自由大气分界面上;考虑到波浪的等海面状况的影响.应使用包含海面状况的参数化方案来模拟海上大气边界层.