RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2017, Vol. 26 >> Issue (04): 641-648.doi: 10.11870/cjlyzyyhj201704018

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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. 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)

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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

CLC Number: 

  • P401
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