【摘要】 在现有的区域气候模式的基础上构建了用于研究地气耦合模拟的区域柱状模式,其中包括了详细的物理过程,可以作为研究半干旱区地气相互作用过程的工具。通过区域柱状模式与不同陆面模式的耦合,检验了不同陆面模式在非耦合和耦合两种情况下对半干旱区的模拟性能。结果表明,陆面模式在耦合后对感热的模拟偏差放大,而潜热的模拟效果得到了改进,不同的陆面模式对区域柱状模式的模拟性能影响较大,耦合了CoLM后的区域柱状模式对地表气象要素的模拟得到了较大的改进。更多还原

【Abstract】 On the basis of Regional Integrated Environment Model System(RIEMS), a regional column model was developed. It includes detailed physical processes, and can be used as a tool to study land-atmosphere interactions in semi-arid areas. The land surface models BATS and CoLM were evaluated in offline mode and coupled mode by coupling with the regional column model. The results showed that the bias of simulated sensible heat flux was magnified and that of latent heat flux was reduced. The performance of regional column model differed largely when coupling with different LSMs(Land Surface Models). Its performance was improved when coupling with CoLM.更多还原