Parameters of Land-Surface Processes for Gobi in North-West China

被引：2

作者：

Zhang Qiang

Huang Ronghui

机构：

[1] China Meteorological Administration,Institute of Arid Meteorology

[2] Academy of Sciences,Cold and Arid Regions Environment and Engineering Institute, Chinese

[3] Chinese Academy of Sciences,Institute of Atmospheric Physics

来源：

Boundary-Layer Meteorology | 2004年 / 110卷

关键词：

Arid region; Land surface; North-west China; Soil heat capacity; Surface albedo;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Using data from the intensive observation period (May–June 2000) of the NWC-ALIEX (The Field Experiment on Interaction between Land and Atmosphere in Arid Region of North-west China), the characteristics and mechanisms of some key land-surface process over Gobi in a typical arid region of north-west China are analyzed and several parameters of land-surface processes are calculated. The weighted mean of the surface albedo over a typical arid region of the Dunhuang Gobi is calculated using the relative reflection as a weighting factor, and its value is 0.255 ± 0.021. After removing the influence of precipitation, the mean soil heat capacity over a typical arid region of the Dunhuang Gobi is 1.12 × 106 J m-3 K-1,which is smaller than that observed in the Heihe (China) River basin Field Experiment (HEIFE). The mean soil heat diffusivity and conductivity are about half of those observed in HEIFE.

引用

页码：471 / 478

页数：7