青藏高原地表能量通量的估计

doi:10.11867/j.issn.1001-8166.2006.12.1268

地球科学进展 ›› 2006, Vol. 21 ›› Issue (12): 1268 -1272. doi: 10.11867/j.issn.1001-8166.2006.12.1268

所属专题：青藏高原研究——青藏科考虚拟专刊；

青藏高原地表能量通量的估计

季劲钧 ^1,2,黄玫 ²

1.中国科学院大气物理研究所，北京 100029；2.中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室，北京 100101

收稿日期:2006-10-11 修回日期:2006-11-02 出版日期:2006-12-15
通讯作者: 季劲钧 E-mail:jijj@mail.iap.ac.cn
基金资助:
国家重点基础研究发展计划项目“中国陆地生态系统碳循环及其驱动机制研究”（编号：2002CB412500）；国家自然科学基金重大项目“区域生态系统过程功能和结构对全球变化响应和适应的集成分析”（编号：30590384）资助.

The Estimation of the Surface Energy Fluxes over Tibetan Plateau

Ji Jinjun ^1,2,Huang Mei ²

1. Institute of Atmospheric Physics, CAS, Beijing 100029, China; 2.The Synthesis Research Center, Chinese Ecosystem Research Network, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received:2006-10-11 Revised:2006-11-02 Online:2006-12-15 Published:2006-12-15

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利用1981—2000年逐日气候、植被和土壤基础资料作为输入，以大气—植被相互作用模式（AVIM2）计算了青藏高原0.1°分辨率的年平均地表能量通量的空间分布和季节变化特征。结果显示，年平均地表净辐射通量由高原西南部的100 W/m²减少到东部的70 W/m²左右。高原东南部的林区潜热通量强而感热通量弱，从高原东南向西、向北潜热通量逐渐减少，而感热通量逐渐增大。夏季这种趋势更加显著。冬季除东南部外，高原上广大地区地表能量通量都较低。

关键词: 青藏高原, 能量通量, AVIM2

The daily climate data for 1981-2000, and the vegetation type data as well as the soil texture data were used as the inputs of Atmosphere-Vegetation Interaction Model (AVIM2) to simulate the spatial and seasonal surface energy fluxes of Tibetan Plateau with the resolution of 0.1°×0.1° grids. The results indicate that the annual mean surface net radiation flux decreases from 100 W/m² over southwestern to 70 W/m²of eastern plateau. The simulated latent heat flux in the forests of southeastern plateau is strong, whereas the sensible heat flux in that area is weak. From southeastern plateau to west and to north, the estimated latent heat flux decreases gradually while the sensible heat increased gradually. This tendency is more significant in summer. In winter, except for the southeastern area, the simulated surface energy fluxes over the broad area of plateau are low.

Key words: Tibetan plateau, Energy flux, AVIM2

中图分类号:

S161.2+1

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