| 广州春季锋面降水的物理化学特征 |
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| 引用本文： | 吴兑,游积平,陈位超,甘春玲,苏力萍,刘林勤.广州春季锋面降水的物理化学特征[J].气象学报,1996,54(2):175-184. |
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| 作者姓名： | 吴兑 游积平 陈位超 甘春玲 苏力萍 刘林勤 |
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| 作者单位： | 广州热带海洋气象研究所，中国环境科学研究院大气物理所 |
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| 摘 要： | 通过对一次典型华南春季锋面层状云降水的物理特征与化学性质的分层密集观测分析，认识到：（１）本次降水雨滴浓度不高，滴径较小，因而雨强较小；（２）雨水ｐＨ值较低，平均为４．７８；离子成分中以ＮＨ，ＳＯ，ＮＯ的含量最高，其次是Ｃｌ－与Ｎａ＋；（３）在贴地层内，雨水在下落过程中离子成分是增加的，ｐＨ值逐渐升高，增加最多的离子成份是ＮＨ；（４）在降水开始后雨水ｐＨ值起伏上升，而后持续下降，雨水中Ｃｌ－与Ｎａ＋关系密切。
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| 关 键 词： | 雨水酸度，雨水化学成分，气溶胶分级水溶性成分，雨滴谱 |
| 收稿时间： | 6/2/1993 12:00:00 AM |
| 修稿时间： | 1995/3/13 0:00:00 |
THE PHYSICAL AND CHEMICAL CHARACTERISTICS OF A SPRING FRONTAL RAINFALL IN GUANGZHOU |
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| Wu Dui,You Jiping,Chen Weichao,Gan Chunlin,Su Liping and Liu Linqin.THE PHYSICAL AND CHEMICAL CHARACTERISTICS OF A SPRING FRONTAL RAINFALL IN GUANGZHOU[J].Acta Meteorologica Sinica,1996,54(2):175-184. |
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| Authors: | Wu Dui You Jiping Chen Weichao Gan Chunlin Su Liping and Liu Linqin |
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| Institution: | Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080;Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080;Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080;Guangzhou Institute of Tropical and Oceanic Meteorology, Guangzhou 510080;Chinese Research Academy of Environmental Sciences, Beijing. 100012;Chinese Research Academy of Environmental Sciences, Beijing. 100012 |
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| Abstract: | Through layer-by-layer observational analysis to a typical case of frontal sheetcloud rainfall,some of its physical and chemical characteristics are obtained,which show that:(1)modest raindrops concentration and small drop diameter account for a light raininess;(2)the pH value(4.78 in average) is low and NH SO and NO are the dominant composition of ions with Cl- and Na+ next to them;(3)with the fall of raindrops at the near-surface layers. ion lvels and PH values increase.(4)the PH value rises in fluctuation at the onset of the rainfall coupled with a consistent desent afterwards.Cl- well relates with Na + |
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| Keywords: | Rainwater acidity Rainwater chemical composition Aerosol Watersoluble ionic compositions |
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