Turbulent characteristics and bulk transfer coefficients over the desert in the HEIFE area

1996 ◽  
Vol 77 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Ichiro Tamagawa
Keyword(s):  
Transfer Coefficients ◽  
Turbulent Characteristics ◽  
Bulk Transfer Coefficients

scholarly journals Characteristics of Land–Atmosphere Interaction Parameters over the Tibetan Plateau

2011 ◽  
Vol 12 (4) ◽  
pp. 702-708 ◽  
Author(s):  
Shuzhou Wang ◽  
Yaoming Ma
Keyword(s):  
Heat Transfer ◽  
Tibetan Plateau ◽  
Transfer Coefficient ◽  
Momentum Transfer ◽  
Roughness Length ◽  
The Tibetan Plateau ◽  
Transfer Coefficients ◽  
Bulk Transfer Coefficients ◽  
Resistance To Heat ◽  
Excess Resistance

Abstract In this study, eddy covariance flux data collected from three research stations on the Tibetan Plateau—Qomolangma for Atmospheric and Environmental Observation and Research, Nam Co for Multisphere Observation and Research, and Southeast Tibet Station for Alpine Environment Observation and Research, Chinese Academy of Sciences—are used to analyze the variation of momentum transfer coefficient (CD), heat transfer coefficient (CH), aerodynamic roughness length (z0m), thermal roughness length (z0h), and excess resistance to heat transfer (kB−1, where k is von Kármán’s constant and B−1 is a non-dimensional bulk parameter). The following results are found. The monthly average surface roughness, bulk transfer coefficient, and excess resistance to heat transfer at all three stations are obtained. The values of average heat bulk transfer coefficients are larger than those of average momentum bulk transfer coefficients at all three stations. The parameter kB−1 exhibits clear diurnal variations with lower values in the night and higher values in the daytime, especially in the afternoon. Negative values of kB−1 are often observed in the night for relatively smooth surfaces on the Tibetan Plateau, indicating that heat transfer efficiency may exceed that of momentum transfer.

scholarly journals Bulk transfer coefficients of momentum and sensible heat over semiarid grassland surface and their parameterization scheme

2013 ◽  
Vol 62 (9) ◽  
pp. 099202
Author(s):  
Yue Ping ◽  
Zhang Qiang ◽  
Li Yao-Hui ◽  
Wang Run-Yuan ◽  
Wang Sheng ◽  
...  
Keyword(s):  
Parameterization Scheme ◽  
Sensible Heat ◽  
Transfer Coefficients ◽  
Semiarid Grassland ◽  
Bulk Transfer Coefficients
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