摘要
利用2003年中国第二次北极科学考察获得的北冰洋浮冰区近冰层气象要素梯度观测资料,应用空气动力学的廓线法和总体输送法以及不同的普适函数,计算分析了2003年8月23日至9月4日浮冰区近冰层的摩擦速度、感热通量和潜热通量.结果表明:Holtslag普适函数的计算结果明显优于其它普适函数,总体输送法计算的不同层次湍流通量比廓线法更能够满足近冰层的常值通量层的假设,其结果可望为进一步优化北冰洋浮冰区边界层参数化方案和提高计算精度提供重要依据.
Friction velocity, sensible and latent heat fluxes are measured using aerodynamic profile and bulk transfer methods with different universal functions for the surface meteorological data collected in drifting ice area during the Chinese Second Arctic Research Expedition, August 23 to September 4 in 2003. The results show that Holtslag universal function is much better than other universal functions mentioned in this study for calculation of fluxes. The turbulence fluxes at different levels obtained by bulk transfer method satisfy the constant flux hypothesis in surface layer better than that by profile method. Hopefully, it gives important support for further improving boundary layer parameterization at Arctic drifting area.
出处
《冰川冻土》
CSCD
北大核心
2005年第3期368-375,共8页
Journal of Glaciology and Geocryology
基金
国家自然科学基金重点项目(40333032)资助
关键词
北极浮冰
廓线法
总体输送法
普适函数
湍流通量
Arctic drifting ice
profile method
bulk transfer method
universal function
turbulent flux
