摘要
本文利用黑河试验(HEIFE)1990年8月16日—9月15日的观测资料,对沙漠和戈壁的总体输送系数进行了研究。结果表明:沙漠和戈壁的中性总体输送系数分别为2.2×10^(-3)和1.6×10^(-3),对应的粗糙度分别为4.5×10^(-3)和1.7×10^(-3)m。中性总体输送系数随风速无明显变化。 文中还求得总体输送系数与总体理查逊数及粗糙度之间的拟合关系式。并利用黑河试验其它时段的观测资料对它的适用性做了初步检验。
In this paper, the 'HEIFE'data during the period from 16 August to 15 September, 1990 over desert and Gobi are used to investigate bulk transfer coefficients. The results show that the neutral bulk transfer coefficients over desert and Gobi are 2.2×10-3 and 1.6×10-3, respectively. The roughness lengths over desert and Gobi are 4.5-10-3 and 1.7-10-3m, respectively. Variation of the neutral bulk transfer coefficients with wind speed is small.
The empirical relationships among the bulk transfer coefficient, the bulk Richardson number and roughness length are given. The results are checked by the 'HEIFE' data during another period.
出处
《高原气象》
CSCD
北大核心
1992年第4期371-380,共10页
Plateau Meteorology
关键词
沙漠
戈壁
总体输送系数
大气
Bulk transfer coefficient
Neutral bulk transfer coefficient
Bulk Richardson number
Roughness length.
