Micrometeorological fluxes under the influence of regional and local advection: a revisit
文献类型：SCI/SSCI论文
| 作者 | Yu Q. |
| 发表日期 | 2004 |
| 关键词 | advection inversion evapotranspiration Bowen ratio convective boundary-layer energy balance method latent-heat flux bowen-ratio eddy-correlation sensible heat exchange coefficients downwind evolution turbulent exchange surface-layer |
| 英文摘要 | This paper presents a new analysis of inequality of eddy diffusivities for sensible heat (K-H) and water vapor (K-W). It is shown that the same set of equations, established on the principle of dual-source diffusion, can be applied to both local and regional advection. Various advection scenarios are discussed using a formula that relates K-H/K-W to the Bowen ratio of the advective source and the observed gradient Bowen ratio (beta(g))near the ground surface. A similar analysis can also be performed for eddy diffusivities for trace gases. The ratio K-H/K-W, observed at a well-watered wheat field in the North China Plains, was mostly greater than unity when beta(g) was negative and smaller than unity when beta(g) was positive. The pattern was consistent with the theoretical analysis of the ratio under the influence of regional advection. Some degree of local advection was also suggested by the data. Despite inequality of the eddy diffusivities, there was little systematic bias between the evapotranspiration rates measured with a Bowen ratio/energy balance and an eddy covariance system. (C) 2003 Elsevier B.V. All rights reserved. |
| 出处 | Agricultural and Forest Meteorology |
| 卷 | 122 |
| 期 | 1-2 |
| 页 | 111-124 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0168-1923 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23696]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yu Q.. Micrometeorological fluxes under the influence of regional and local advection: a revisit. 2004. |
入库方式： OAI收割
来源：地理科学与资源研究所
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