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塔克拉玛干沙漠腹地大气气溶胶散射特征研究
Authors
刘明哲
王敏仲
+3 more
陆辉
高卫东
魏文寿
Publication date
20 October 2010
Publisher
Abstract
利用沙漠腹地塔中气象站积分浊度计的2004年观测资料,结合同期PM10质量浓度、能见度和常规气象资料,分析了塔克拉玛干沙漠腹地气溶胶散射系数的变化特征,以及气溶胶散射系数与PM10质量浓度、能见度的关系。研究表明,2004年塔中气溶胶散射系数、PM10质量浓度、能见度日平均值分别为124.74±187.30 Mm-1,538.9±841.7μg.m-3,12 748±7 274 m。塔中气溶胶散射系数小时平均值出现频率最高的区间主要在100 Mm-1以下,中午气溶胶散射系数小,早晚气溶胶散射系数大;冬春两季的凌晨空气中含有较多的粒子,气溶胶散射系数较大;气溶胶散射系数小时平均值与PM10质量浓度变化规律基本一致,2004年1—6月的气溶胶质量散射系数平均值为0.37 m2.g-1;散射系数与能见度日平均值非线性相关较好,两者呈负幂函数关系
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016