论文标题
在REGCM4中构建单列模型及其用于评估PBL方案的初步应用
Construction of a Single-Column Model in RegCM4 and its Preliminary Application for Evaluating PBL Schemes in Simulating the Dry Convection Boundary Layer
论文作者
论文摘要
在区域气候模型RegCM4中构建了单列模型（SCM）。 The evolution of a dry convection boundary layer (DCBL) is used to evaluate this SCM and compare four planetary boundary layer (PBL) schemes, the Holtslag-Boville scheme (HB), Yonsei University scheme (YSU), and two University of Washington schemes (UW01, Grenier-Bretherton-McCaa scheme and UW09, Bretherton-Park scheme), using the SCM approach. DCBL的大型模拟（LES）作为基准进行，以检查PBL参数化方案如何重现LES结果，并比较几个诊断输出以评估方案。通常，对于DCBL案例，YSU方案最适合重现LES结果，其中包括混合良好的特征和垂直明智的热通量。 UW09具有第二好的性能，UW01具有第三好的性能，而HB方案的性能最差。结果表明SCM是正确构建的。尽管需要更多的案例和进一步的测试，但这些模拟显示了使用此SCM框架来研究REGCM4中的物理过程的令人鼓舞的结果。
A single-column model (SCM) is constructed in the regional climate model RegCM4. The evolution of a dry convection boundary layer (DCBL) is used to evaluate this SCM and compare four planetary boundary layer (PBL) schemes, the Holtslag-Boville scheme (HB), Yonsei University scheme (YSU), and two University of Washington schemes (UW01, Grenier-Bretherton-McCaa scheme and UW09, Bretherton-Park scheme), using the SCM approach. A large-eddy simulation (LES) of the DCBL is performed as a benchmark to examine how well a PBL parameterization scheme reproduces the LES results, and several diagnostic outputs are compared to evaluate the schemes. In general, with the DCBL case, the YSU scheme performs best for reproducing the LES results, which include well-mixed features and vertical sensible heat fluxes; UW09 has the second best performance, UW01 has the third best performance, and the HB scheme has the worst performance. The results show that the SCM is proper constructed. Although more cases and further testing are required, these simulations show encouraging results towards the use of this SCM framework for studying the physical processes in RegCM4.
