干旱区生态环境知识资源中心(Arid): 金塔绿洲农田下垫面温湿度的非相似性分析

Arid

	金塔绿洲农田下垫面温湿度的非相似性分析
其他题名	Dissimilarity Analysis between Scalars over Farmland Surface in Jinta Oasis
	张珊; 张宇; 王少影; 尚伦宇; 苏有琦
来源期刊	高原气象
ISSN	1000-0534
出版年	2016
卷号	35 期号:3 页码:633-642
中文摘要	利用2005年金塔绿洲的湍流资料分析了金塔绿洲农田下垫面上温度和湿度的非相似性。结果表明,低层风速较小和高层风速介于2 ~ 4 m · s~(-1)时,温度和湿度标量的相似性较大,且温湿度的相似性随稳定度向近中性条件偏移而减小;R_(Tq)(n)和lambda_n分别在频率域10~(-2)
英文摘要	Monin-Obukhov(M-O)similarity theory is an important theoretical basis of the study of the atmospheric surface layer turbulence. Since the surface is always heterogeneous at different scales and in different degrees, temperature(T)is not similar to humidity(q). In order to investigate the dissimilarity of temperature and humidity at different scales and to further understand the turbulent transport process above Jinta Oasis farmland, the data for three heights(3. 33,8. 41,16. 60 m)in sunny day from theThe Oasis System Energy and Water Cycle Field Experimentover Jinta Oasis farmland was used, which was conducted from 23 May to 18 June in 2005. Firstly, the correlation coefficient of temperature and humidity for every 30-min runs was calculated. Secondly, the frequency distributions of \|r_(Tq)\| in different wind directions and different wind velocity,and the probability distributions of stability with different correlation coefficients for three heights in daytime were analyzed. Thirdly, the spectrum of the correlation coefficient and relative transfer efficiency with Fourier transform under six kinds of correlation coefficient cases(r_(Tq) >0. 6,0. 3< r_(Tq) <0. 6,0< r_(Tq) <0. 3,<-0. 6,-0. 6< r_(Tq) <-0. 3,-0. 3< r_(Tq) <0)and three kinds of stability conditions (unstable zeta<-0. 05,near-neutral -0. 050. 05) were analyzed in the frequency domain. The results show that the scalar similarity is larger with the lower wind speed at the low level and with the wind speed is between 2 ~ -4 m·s~(-1) at the top level. With the stability closing to near-neutral conditions, the scalar similarity is decreasing. R_(Tq)(n)and lambda_n is approximately to a constant in the frequency domain 10~(-2)
中文关键词	金塔绿洲 ; 标量相似性 ; 相关系数 ; 相对输送效率
英文关键词	Jinta Oasis Scalar similarity Scalar correlation coefficient Relative transfer efficiency
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5752498
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234409
作者单位	中国科学院寒区旱区环境与工程研究所, 中国科学院寒旱区陆面过程与气候变化重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	张珊,张宇,王少影,等. 金塔绿洲农田下垫面温湿度的非相似性分析[J]. 中国科学院西北生态环境资源研究院,2016,35(3):633-642.
APA	张珊,张宇,王少影,尚伦宇,&苏有琦.(2016).金塔绿洲农田下垫面温湿度的非相似性分析.高原气象,35(3),633-642.
MLA	张珊,et al."金塔绿洲农田下垫面温湿度的非相似性分析".高原气象 35.3(2016):633-642.