NDLI: Shortwave radiative forcing of clouds and aerosols over China from 1998 to 2002

Content Provider	IEEE Xplore Digital Library
Author	Ning Lu Ronggao Liu Jiyuan Liu
Copyright Year	2010
Description	Author affiliation: Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China (Ning Lu; Ronggao Liu; Jiyuan Liu)
Abstract	Radiative forcing of clouds and aerosols are of research highlight in climate change science. In this paper, the shortwave radiative forcing of clouds and aerosols were estimated from Geostationary Meteorological Satellite (GMS) 5 data over China from 1998 to 2002, respectively. Such estimation is performed by a newly retrieval strategy based on radiative transfer model, which calculates shortwave cloud radiative forcing as the difference between downward solar radiation under all-sky and clear-sky, and shortwave aerosol direct radiative forcing as the difference between downward solar radiation under cloud-free sky with and without aerosol. Both instantaneous radiative forcing of cloud and aerosol were integrated to their daily mean radiative forcing, and then their annual spatial distribution can be derived. Based on them, this paper demonstrates changing patterns and processes of cloud and aerosol shortwave radiative forcing over China during those 5 years, analyses the role of cloud and aerosol that plays within each duration when downward solar radiation at surface changes. The analysis of overall radiative forcing of clouds and aerosols suggests that aerosol shortwave radiative forcing has increased by 32.8% (7.27W $m^{−2})$ and cloud shortwave radiative forcing has decreased by 7% (4.81W $m^{−2})$ for those 5 years. The impact of variability of aerosol shortwave radiative forcing has exceeded that of cloud shortwave radiative forcing, which led to the overall shortwave radiative forcing increased, thereby further decreased the downward solar radiation over China.
Starting Page	1
Ending Page	4
File Size	4303382
Page Count	4
File Format	PDF
ISBN	9781424473014
e-ISBN	9781424473038
DOI	10.1109/GEOINFORMATICS.2010.5567995
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decision support systems Shortwave radiative forcing Absorption Clouds Atmospheric modeling Aerosol Cloud Aerosols Solar radiation Meteorology
Content Type	Text
Resource Type	Article

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