摘要
对青藏高原地区地表能量的研究是一个十分重要的问题.基于中日合作项目“全球协调加强观测计划之亚澳季风青藏高原试验”(CAMP/Tibet)在2001年8月至2002年9月的观测数据资料,分析研究了青藏高原藏北地区地表能量,即净辐射通量、感热通量、潜热通量和土壤热通量等的变化规律,获得了有关藏北高原地表能量的新认识.
It is very important to study the regional heat fluxes in the Tibetan Plateau Area. Using CAMP/Tibet （CEOP, Coordinated Enhanced Observing Period） Asia-Australia Monsoon Project （CAMP） on the Tibetan Plateau （CAMP/Tibet, 2001-2005）） data, land surface heat fluxes are analyzed. Those are the net radiation flux（Rn）, sensible heat fluxes （H）, latent heat fluxes （（E） and soil heat fluxes （G0）. Some new results are gotten in the Northern Tibetan Plateau. 1） In the Tibet plateau, the yearly variations of downward shortwave and long-wave radiation, upward shortwave and long-wave radiation, net radiation fluxes are clearly, its July numerical values are larger than January. Their eigenvalueas are 230, 245,53, 345 and 95W·m^-2; 2） In the Tibetan Plateau, the diurnal variations of net radiation, sensible, latent and soil heat fluxes are clearly. They increase with the increasing of solar altitude angle after the sunrise in the morning, and the maximum appears around the noon then they decrease with the decreasing of solar altitude angle. 3） Latent heat flux is the main point in summer and sensible heat flux is the main point in winter. In June latent heat flux and sensible heat flux is almost equality. At the beginning of July the latent heat flux is the main aspect until September, then sensible heat flux is the main aspect until the coming year if May. 4） The variation of soil heat flux is slow and its value is very small.
出处
《冰川冻土》
CSCD
北大核心
2005年第5期673-679,共7页
Journal of Glaciology and Geocryology
基金
中国科学院大气物理研究所东亚区域气候环境重点实验室2005年开放课题项目
中国科学院知识创新工程方向性项目(KZCX3-SW-329KZCX3-SW-339)资助
关键词
地表能量通量
地面观测
藏北高原
那曲
land surface heat fluxes
field observation
the Northern Tibetan Plateau
Naqu
