【摘要】 简要阐述了国家重点基础研究发展规划项目“我国重大气候和天气灾害形成机理和预测理论的研究”支持的“我国西北干旱区陆—气相互作用野外试验(NWC ALIEX)”的科学意义、试验方案和科学目标,总结了该试验在最近几年取得的部分研究进展和研究成果,概括叙述了该项目在地表辐射平衡和热量平衡、总体输送系数、陆面过程参数、湍流通量参数化和地表水分循环以及陆面过程模式的改进和陆面过程的模拟等许多方面的重要发现和一些新的认识。最后,提出并讨论了在干旱区陆面过程方面需要进一步研究和思考的一些重要科学问题。更多还原

【Abstract】 This paper illustrates briefly the scientific meaning, experiment scheme and scientific objectives of NWC-ALIEX (Land-atmosphere Interaction Experiment in Arid Region of Northwest China) that is supported by the National Key Programme for Basic Sciences, the Research on the Formation Mechanism and Prediction Theory of the Heavy Climate Disasters in China. Some of the research advances and achievements in recent years are summed up. Next, it presents us some important discoveries and new ideas of the Program on the surface radiation and the heat balance, the bulk transfer coefficients, the land surface process parameters, the parameterization of turbulent flux, the surface water recycle, the improvement on land surface model and simulating of the land surface process, etc. Finally, it gets down to discuss some problems existing in the experiment and raises several important scientific problems that need further research.更多还原