Article Type:
Research Article

A Note on Alternatively Direct Measurement of the Transfer Resistance over Vegetation

Zhilin Zhu Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

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Xiaomin Sun Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

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Renhua Zhang Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

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Hongbo Su Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

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Xinzai Tang Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

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Xuhui Lee School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut

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Print Publication:
01 Nov 2002
DOI:
https://doi.org/10.1175/1520-0426(2002)019<1886:ANOADM>2.0.CO;2
Page(s):
1886–1890
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Abstract

The boundary layer transfer resistance is an important parameter in micrometeorology. The most common approach to determining it uses a wind function that is extremely sensitive to the specified roughness length and can suffer large uncertainties, especially for partially vegetated surfaces. In order to avoid using some sensitive parameters not easily determined, a simple apparatus was designed for direct measurement of the resistance. This note reports the preliminary results of a test using the apparatus in a sparse wheat field.

Corresponding author address: Dr. Xuhui Lee, School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511. Email: xuhui.lee@yale.edu

Abstract

The boundary layer transfer resistance is an important parameter in micrometeorology. The most common approach to determining it uses a wind function that is extremely sensitive to the specified roughness length and can suffer large uncertainties, especially for partially vegetated surfaces. In order to avoid using some sensitive parameters not easily determined, a simple apparatus was designed for direct measurement of the resistance. This note reports the preliminary results of a test using the apparatus in a sparse wheat field.

Corresponding author address: Dr. Xuhui Lee, School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511. Email: xuhui.lee@yale.edu

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