Glaciation and Ice Multiplication of Convective Clouds and Their Dependence on Aerosol Investigated by Satellites

  • ZHU Yannian ,
  • YU Xing ,
  • XU Xiaohong ,
  • LIU Guihua ,
  • DAI Jin
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  • Meteorological Institute of Shaanxi Province, Xi'an 710014, China

Received date: 2014-01-14

  Online published: 2015-12-28

Abstract

The ice phase of convective clouds is complicated and affects the precipitation and cloud radiative properties. The ice forming nuclei (IFN) activity of aerosols glaciate the clouds are still unclear. The CALIOP and MODIS satellite data during 2008 to 2011, were used to investigate the cloud Tg and re distribution over the China and surrounding areas. The results shows as follows: (1) Satellite observations show that desert dust and heavy air pollution over study area have similar ability to glaciate convective clouds, when re-5<12 μm Tg increase with increasing AOT. (2) When re-5≥12 μm, aerosol suppress ice multiplication and decrease Tg. (3) Ice multiplication is the main mechanism for pristine maritime deep convective clouds, while it works only 20 percent for continental convective clouds.

Cite this article

ZHU Yannian , YU Xing , XU Xiaohong , LIU Guihua , DAI Jin . Glaciation and Ice Multiplication of Convective Clouds and Their Dependence on Aerosol Investigated by Satellites[J]. Plateau Meteorology, 2015 , 34(6) : 1758 -1764 . DOI: 10.7522/j.issn.1000-0534.2014.00083

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