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Net cloud radiative forcing at the top of the atmosphere in the Asian monsoon region

Rajeevan, M and Srinivasan, J (2000) Net cloud radiative forcing at the top of the atmosphere in the Asian monsoon region. Journal of Climate, 13 (3). pp. 650-657.

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Abstract

Based on the data from Earth Radiation Budget Experiment (ERBE), many investigators have concluded that the net cloud radiative forcing at the top of the atmosphere is small in the deep convective region of the Tropics. This conclusion has been shown to be invalid for the Asian monsoon region during the period June-September. The ERBE data have been used to show that in the Asian monsoon region the net cloud radiative forcing at the top of the atmosphere is negative and its magnitude exceeds 30 W m-2 in 25 of the grids in this region. The large negative net cloud radiative forcing in the Asian monsoon region during June-September has been shown to be on account of the presence of large amount of high clouds and the large optical depth of these clouds. This combination of high cloud amount and high optical depth occurs in the Asian monsoon region only. In the other deep convective regions of the Tropics, high clouds with large optical depths are present, but they do not cover a large area. Based on the data from Earth Radiation Budget Experiment (ERBE), many investigators have concluded that the net cloud radiative forcing at the top of the atmosphere is small in the deep convective region of the Tropics. This conclusion has been shown to be invalid for the Asian monsoon region during the period June-September. The ERBE data have been used to show that in the Asian monsoon region the net cloud radiative forcing at the top of the atmosphere is negative and its magnitude exceeds 30 W m-2 in 25 of the grids in this region. The large negative net cloud radiative forcing in the Asian monsoon region during June-September has been shown to be on account of the presence of large amount of high clouds and the large optical depth of these clouds. This combination of high cloud amount and high optical depth occurs in the Asian monsoon region only. In the other deep convective regions of the Tropics, high clouds with large optical depths are present, but they do not cover a large area.

Item Type: Article
Additional Information: Copyright of this article belongs to American Meteorological Society.
Uncontrolled Keywords: Atmospheric composition; Atmospheric structure; Climate change; Solar radiation; Storms, Asian monsoon region; Cloud radiative forcing; Earth Radiation Budget Experiment, Clouds, cloud radiative forcing; convective system; monsoon; top of atmosphere
Subjects: Meteorology and Climatology
Depositing User: Administrator ePrints@MoES
Date Deposited: 11 Jun 2016 04:50
Last Modified: 11 Jun 2016 04:50
URI: http://moeseprints.incois.gov.in/id/eprint/4060

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