当前位置: 首页 > 文章 > 腾格里沙漠沙尘暴天气动力要素特征研究 水土保持通报 2010,30 (3) 104-106
Position: Home > Articles > Variations of Dynamical Elements During a Sand-storm Passing the Tengger Desert Region Bulletin of Soil and Water Conservation 2010,30 (3) 104-106

腾格里沙漠沙尘暴天气动力要素特征研究

作  者:
吕萍;董治宝;张正偲;赵爱国
单  位:
中国科学院沙漠与沙漠化重点实验室
关键词:
腾格里沙漠;摩阻速度;粗糙度
摘  要:
利用中国科学院风沙科学观测场的近地层观测资料,分析了腾格里沙漠地区沙尘暴天气过程地面摩阻速度、空气动力学粗糙度以及床面剪切力的变化特征。结果表明,在沙尘暴过境时,地面摩阻速度、空气动力学粗糙度以及床面剪切力并不是保持一成不变,而是随时间不断发生变化,各高度层风速之间相关系数大于0.9,具有很显著的相关性。
译  名:
Variations of Dynamical Elements During a Sand-storm Passing the Tengger Desert Region
作  者:
LU Ping,DONG Zhi-bao,ZHANG Zheng-cai,ZHAO Ai-guo(Key Laboratory of Desert and Desertification,Chinese Academy of Sciences,Lanzhou,Gansu 730000,China)
关键词:
Tengger Desert region;friction velocity;roughness length
摘  要:
Based on the data collected at the Sand Drift Observation Station of Chinese Academy of Sciences,the characteristics of friction velocity,aerodynamic roughness length,and shear stress during a sand-storm passing the Tengger Desert region were analyzed.Results show that the elements vary with time during the passage of the sand storm.The variation of wind speed is highly correlated with the height and the coefficient correlations are all bigger than 0.9.

相似文章

计量
文章访问数: 4
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊