| 陆面上总体输送系数的特征 |
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| 引用本文： | 苗曼倩,钱峻屏.陆面上总体输送系数的特征[J].气象学报,1996,54(1):95-101. |
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| 作者姓名： | 苗曼倩 钱峻屏 |
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| 作者单位： | 南京大学大气科学系，中山大学 |
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| 摘 要： | 利用气象铁塔的风、温梯度资料，对陆面上近地层湍流拖曳系数ＣＤ和总体输送系数ＣＨ（或ＣＥ）的大小和日变化规律进行研究。发现陆面上较粗糙的地表，ＣＤ和ＣＨ可以比海面上大一个量级左右。而且存在着明显的日变化。它们对地表面动力粗糙度变化的反应较敏感。本工作为气候及大气环流模式研究中陆面参数化过程提供了重要依据。
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| 关 键 词： | 总体输送系数，梯度输送理论，地气相互作用 |
| 收稿时间： | 1993/11/4 0:00:00 |
| 修稿时间： | 1/2/1994 12:00:00 AM |
CHARACTERISTICS OF BULK DRAGE COEFFICIENT AND TRANSPORT COEFFICIENT OVER THE LAND |
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| Miao Manqian and Qian Junping.CHARACTERISTICS OF BULK DRAGE COEFFICIENT AND TRANSPORT COEFFICIENT OVER THE LAND[J].Acta Meteorologica Sinica,1996,54(1):95-101. |
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| Authors: | Miao Manqian and Qian Junping |
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| Institution: | Department of Atmospheric Sciences, Nanjing University, Nanjing, 210008;Department of Atmospheric Sciences, Nanjing University, Nanjing, 210008 |
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| Abstract: | The magnitude and diurnal variation of the turbulent drag coefficient CD and bulk transport coefficient of heat (or moisture) flux, CH (or CE). have been studied by using the wind speed and temperature gradient data of meteorological towers. It's shown that the CD, CH(or CE.) can be about one order in greater over rough land surface than over sea surface. There are obvious diurnal changes of these coefficients. Their responses to the changes of dynamic roughness are sensitive. |
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| Keywords: | Bulk transport coefficient Gradient transport theory Air-land interaction |
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