Simulation of Forcing of Sulfate Aerosol on Direct Radiation and Its Climate Effect over Middle and Eastern China

Tian Hua; Ma Jianzho ng; Li Weiliang; Liu Hongli

Vol.16, NO.3, 2005

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2005 > 16(3): 322-333

Tian Hua, Ma Jianzho ng, Li Weiliang, et al. Simulation of forcing of sulfate aerosol on direct radiation and its climate effect over middle and eastern China. J Appl Meteor Sci, 2005, 16(3): 322-333.

Citation:

Tian Hua, Ma Jianzho ng, Li Weiliang, et al. Simulation of forcing of sulfate aerosol on direct radiation and its climate effect over middle and eastern China. J Appl Meteor Sci, 2005, 16(3): 322-333.

Citation:

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Simulation of Forcing of Sulfate Aerosol on Direct Radiation and Its Climate Effect over Middle and Eastern China

Chinese Academy of Meteorological Sciences, Beijing 100081

Received Date: 2003-12-15
Rev Recd Date: 2004-06-17
Publish Date: 2005-06-30

Abstract

Abstract

Investigation is performed of the space/time features of MODIS data retrieved aerosol optical thickness in the east and middle of China in 2001 and MM5 simulation is conducted of the forcing of sulphate aerosol on direct radiation and its climate effect. Evidence shows that optical thickness is greater in the Sichuan Basin, middle-lower reaches of the Yangtze, Huanghe-Huaihe valley, Guangdong and Guangxi and varies on a seasonal basis, with its maximum in spring. The response of surface temperature to forcing exhibits distinct features on a regional and seasonal basis, with marked temperature drop in the south (north) of the target area in winter, spring and autumn (summer); in terms of regional mean, the forcing is –34.53, –22.76, –22.56 and –20 W/m² in spring, winter and autumn, in order under a clear sky for the eastern and middle part and in terms of the drop in surface temperature the study region shows –0.65, –0.37, –0.34 and –0.09oC in winter, autumn, spring and summer, respectively.
- Aerosol;
- MODIS;
- Sulfate;
- Radiat ion forcing;
- Climate effects

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References(24)

Figures and Tables

图 1 2001年MODIS光学厚度转换成模式格点的晴空气溶胶月平均光学厚度图

(a)1月, (b)4月, (c)7月, (d)10月

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图 2 2001年晴空气溶胶辐射强迫的月平均变化 (Case1) (单位:W/m²)

(a)1月, (b)4月, (c)7月, (d)10月

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图 3 地面气温的季节变化 (Case1) (单位:℃)

(a)1月, (b)4月, (c)7月, (d)10月

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图 4 1、4、7、10月4个月平均地面气温变化 (Case1) (单位:℃)

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图 5 Case2与Case1地面气温差分布 (单位:℃)

(a)1月, (b)4月, (c)7月, (d)10月

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表 1 晴空气溶胶辐射强迫和地面气温变化的大小

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