Knowledge Resource Center for Ecological Environment in Arid Area
Atmospheric physical characteristics of dew formation in semi-arid in loess plateau | |
Wang Sheng1; Zhang Qiang | |
通讯作者 | Wang Sheng |
来源期刊 | ACTA PHYSICA SINICA
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ISSN | 1000-3290 |
出版年 | 2011 |
卷号 | 60期号:5 |
英文摘要 | Based on the data measured in 2009 in the DingXi, a typical semi-arid region in loess plateau, the temporal variation of condensed water and the influence factors are investigated. Meanwhile, the measurements of condensed water, made by weighing approach and eddy-correlation approach separately, are compared in this work. The results show that in the semi-arid regions in Loess Plateau, the daily maximum amount of condensation can reach 0.33 mm, the daily minimum recorded is 0.09 mm, and the average daily amount is 0.23 mm. No obvious correlations is found between the amount of condensation and wind velocity, relative humidity, temperature, or land-air temperature difference. In the process of dew formation, the relative humidity which supplies the water vapor for condensing is an internal factor. The temperature which is motive power for condensing process is a key factor. The wind speed has an important effect and is an uncertain factor, which promotes but also can restrain the dew formation. It is also found that the following conditions favor the condensation process: wind speed of 0.5-2 m/s, relative humidity > 80% and land-air temperature difference < +/- 2 degrees C |
英文关键词 | semi-arid region in losses plateau dew formation atmospheric affect factor the frequency of occurrence |
类型 | Article |
语种 | 中文 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000291239700127 |
WOS关键词 | SURFACE ; CHINA ; DEPOSITION ; CONVECTION ; LAYER ; SOIL |
WOS类目 | Physics, Multidisciplinary |
WOS研究方向 | Physics |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/166756 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China; 2.China Meteorol Adm, Inst Arid Meteorol, Lanzhou 730020, Peoples R China |
推荐引用方式 GB/T 7714 | Wang Sheng,Zhang Qiang. Atmospheric physical characteristics of dew formation in semi-arid in loess plateau[J]. 兰州大学,2011,60(5). |
APA | Wang Sheng,&Zhang Qiang.(2011).Atmospheric physical characteristics of dew formation in semi-arid in loess plateau.ACTA PHYSICA SINICA,60(5). |
MLA | Wang Sheng,et al."Atmospheric physical characteristics of dew formation in semi-arid in loess plateau".ACTA PHYSICA SINICA 60.5(2011). |
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