藏北高原地区和西北干旱区地表能量季节变化特征对比分析

ANALYSES ON SEASONAL VARIATION CHARACTERISTICS OF SURFACE ENERGY IN THE NORTHERN TIBETAN PLATEAU AND ARID REGION OF NORTHWEST CHINA

基于中日合作研究项目"全球协调加强观测计划之亚澳季风青藏高原试验"(CAMP/Tibet,2001～2005年)和大型野外观测试验国家重点基础研究发展规划项目中的"西北干旱区陆气相互作用试验"(DHEX,2000-2003年) 1a年的观测数据资料分析研究了干旱区地表能量,即净辐射通量、感热通量、潜热通量和土壤热通量。得到一些有关地表能量的新认识,最后还提出并讨论了计算地表能量通量的方法及其优缺点。

It is very important to study the regional heat fluxes and water cycle in the northern Tibetan Plateau and Arid Regions of Northwest China. Using CAMP/Tibet （CEOP （Coordinated Enhanced Observing Period） Asia-Australia Monsoon Project （CAMP） on the Tibetan Plateau （CAMP/Tibet, 2001-2005）） and DHEX （The Dunhuang Experiment, 2000 - 2003） data, the land surface heat fluxes, including net radiation flux（Rn ）, sensible heat fluxes（H）, latent heat fluxes （λE） and soil heat fluxes（G0 ） were analyzed. Some new results were gotten in these areas. Finally, the ways of calculat- ing land surface heat fluxes, and their advantage and disadvantage were discussed.