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中文摘要: 作者分析了1987年8—9月在广州观测的硫酸盐巨粒子资料。主要结果是:(1)干直径大于2μm的硫酸盐巨粒子平均浓度1.2个·L-1,平均含盐量3.0μg·m-3,其中干直径大于4μm的特大粒子平均为0.6个·L-1,均低于南海西沙永兴岛的结果。(2)浓度谱是典型的准单调下降型幕函数递减谱,其谱型参数与永兴岛的结果甚为接近;质量谱在单对数坐标中为较为平直的分布,表明各谱段粒子对含盐量均有贡献。(3)微量化学法的观测对象仅局限于干直径大于2μm的结晶态盐粒子,而不能识别亚微米粒子,也不能识到沉积在非水溶性气溶
中文关键词: 硫酸盐，巨粒子，谱分布
Abstract:The data of giant particles of sulfate observed in Guangzhou during August and September 1987 are analyzed. The main results are:1) The average concentration of sulfate ion nuclei and the average salt content with which dried diameters are larger than 2μm are 1.2 per litre in number and 3. 0μg·m-3 respectively, and the special giant nuclei with which dried diameters are larger than 4μm is 0. 6 per litre in number. They are all much lower than the values observed in Yongxing(Xisha islands) in South China Sea.2) The spectrum type of concentration shows a quasiunimodal and exponential lapse rate,in Which the spectrum parameters are very close to that of the Yongxing island. The spectrum of mass shows a gentle distribution in single-logarithm-coordinate. Therefore all the results show that all size particles have contributed to salt content.
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基金项目:国家气象局气象科学基金云物理项目资助
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引用文本：
吴兑,甘春铃,何应昌,1995.广州夏季硫酸盐巨粒子的分布特征[J].气象,21(3):44-46.
,1995.The Distribution Feature of Giant Particles of Sulfate in Guangzhou during Summer[J].Meteor Mon,21(3):44-46.
吴兑,甘春铃,何应昌,1995.广州夏季硫酸盐巨粒子的分布特征[J].气象,21(3):44-46.
,1995.The Distribution Feature of Giant Particles of Sulfate in Guangzhou during Summer[J].Meteor Mon,21(3):44-46.