从气溶胶微物理属性分析冬季重庆地区霾的垂直分布特征

doi:10.11870/cjlyzyyhj201704018

长江流域资源与环境 >> 2017, Vol. 26 >> Issue (04): 641-648.doi: 10.11870/cjlyzyyhj201704018

•　自然灾害　• 上一篇

从气溶胶微物理属性分析冬季重庆地区霾的垂直分布特征

刘海晨¹, 丁明月¹, 江文华², 陈勇航¹, 张华³, 杜豪杰¹, 李嘉栋¹, 邱靖涵¹

1. 东华大学环境科学与工程学院, 上海 201620;
2. 重庆气象台, 重庆 401147;
3. 中国气象局国家气候中心, 北京 100081

收稿日期:2016-02-19 修回日期:2016-09-07 出版日期:2017-04-20
通讯作者: 陈勇航 E-mail:yonghangchen@dhu.edu.cn
作者简介:刘海晨(1991~),男,主要研究方向为大气环境.E-mail:liuhaichen117@163.com
基金资助:
国家自然科学基金项目（91644211，41575002，41375021）；重庆市气象局开放式研究基金项目（kfjj-201203）

VERTICAL DISTRIBUTION OF ATMOSPHERIC AEROSOL MICROPHYSICAL PROPERTIES OVER CHONGQING AREA DURING HAZE PERIODS IN WINTER

LIU Hai-chen¹, DING Ming-yue¹, JIANG Wen-hua², CHEN Yong-hang¹, ZHANG Hua³, DU Hao-jie¹, LI Jia-dong¹, QIU Jing-han¹

1. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;
2. Chongqing Meteorological Observatory, Chongqing 401147, China;
3. National Climate Center of China, Meteorological Administration, Beijing 100081, China

Received:2016-02-19 Revised:2016-09-07 Online:2017-04-20
Supported by:
National Natrual Science Foundatoon (91644211, 41575002, 41375021);Open Research Fund of Chongqing Meteorological Bureau)kfjj-201203)

摘要/Abstract

摘要： 采用2007~2011年冬季（12月~次年2月）CALIPSO星载激光雷达L1监测数据，通过分析532 nm总后向散射系数、体积退偏比和色比，对重庆地区冬季霾期间气溶胶光学和微物理特性的垂直分布进行了研究。结果表明：重庆地区冬季霾期间，大气散射能力随高度减弱，在0~1 km高度最强；各高度层气溶胶粒子规则性与粒径大小的分布情况与全年总体分布情况基本相同，但变化趋势单调性更强，0~1 km高度层规则的、大颗粒气溶胶所占比例最大，3~4 km高度不规则的、小颗粒气溶胶所占比例最大；年际变化上，气溶胶散射强度逐年增强，其中2008~2010年变化较小，2011年明显增强；各年均以规则的、小颗粒气溶胶为主，2011年不规则气溶胶所占比例最大，而大颗粒气溶胶所占比例逐年增大。

关键词: CALIPSO, 气溶胶, 霾, 垂直分布

Abstract: Based on the onboard LIDAR data from CALIPSO satellite of National Aeronautics and Space Administration (NASA) from December 2007 to February 2011, the vertical distribution of optical and micro-physical properties of aerosols around Chongqing during the haze periods in winter were revealed by analyzing the parameters of 532 nm total attenuated backscatter coefficient, volume depolarization ratio and total attenuated color ratio. The results showed that, during haze periods in winter, the scattering ability of atmospheric aerosols generally decreased with increasing altitude, being strongest in low troposphere (0-1km). The distribution of regularity and size of particles within the altitude range of 1-4km were the same throughout the year, but the trend monotonous was stronger. The proportion of regular aerosols and coarse particles were the most in low troposphere (0-1km), and the proportion of irregular aerosols and fine particles were the most in middle troposphere (3-4km). Comparing the situation in each year, the scattering intensity had an increasing trend. The scattering intensity from 2008 to 2010 varied within a small range, there was a significant increasing in 2011. Regular aerosols and fine particles were the dominant aerosols from 2007 to 2011, the proportion of irregular aerosols were the most in 2011. In addition, the proportion of coarse particles was increasing year by year.

Key words: CALIPSO, aerosol, haze, vertical distribution

中图分类号:

P401

刘海晨, 丁明月, 江文华, 陈勇航, 张华, 杜豪杰, 李嘉栋, 邱靖涵. 从气溶胶微物理属性分析冬季重庆地区霾的垂直分布特征[J]. 长江流域资源与环境, 2017, 26(04): 641-648.

LIU Hai-chen, DING Ming-yue, JIANG Wen-hua, CHEN Yong-hang, ZHANG Hua, DU Hao-jie, LI Jia-dong, QIU Jing-han. VERTICAL DISTRIBUTION OF ATMOSPHERIC AEROSOL MICROPHYSICAL PROPERTIES OVER CHONGQING AREA DURING HAZE PERIODS IN WINTER[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2017, 26(04): 641-648.

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从气溶胶微物理属性分析冬季重庆地区霾的垂直分布特征

VERTICAL DISTRIBUTION OF ATMOSPHERIC AEROSOL MICROPHYSICAL PROPERTIES OVER CHONGQING AREA DURING HAZE PERIODS IN WINTER

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