Radiative effect of black carbon aerosol on seasonal variation in snow depth in the Northern-Hemisphere

2013 ◽  
Vol 49 (2) ◽  
pp. 201-207 ◽  
Author(s):  
Woo-Seop Lee ◽  
Maeng-Ki Kim
2019 ◽  
Vol 99 ◽  
pp. 04005
Author(s):  
Ina Tegen ◽  
Bernd Heinold

The radiative effect of mineral dust and black carbon aerosol are investigated with aerosolclimate model simulations with fixed sea surface temperatures as boundary condition. The semi-direct effects of the absorbing aerosol are assessed as the residual between the total direct radiative effect and the instantaneous direct radiative effect of the aerosol species. For Central Asia the presence of mineral dust aerosol below a black carbon aerosol layer enhances the positive radiative effect of the black carbon aerosol.


2010 ◽  
Vol 104 (3-4) ◽  
pp. 301-312 ◽  
Author(s):  
Bingliang Zhuang ◽  
Fei Jiang ◽  
Tijian Wang ◽  
Shu Li ◽  
Bin Zhu

2017 ◽  
Vol 197 ◽  
pp. 407-414 ◽  
Author(s):  
Shizuo Fu ◽  
Xin Deng ◽  
Zhe Li ◽  
Huiwen Xue

Atmosphere ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 380 ◽  
Author(s):  
Ina Tegen ◽  
Bernd Heinold

Radiative effects of absorbing black carbon and mineral dust aerosols are estimated from global aerosol climate model simulations with fixed sea surface temperatures as a boundary condition. Semi-direct effects are approximated as the residual between the total direct radiative effect and the instantaneous direct radiative effect of the simulated absorbing aerosol species. No distinction is made for aerosols from natural and anthropogenic sources. Results for global average are highly uncertain due to high model variability, but consistent with previous estimates. The global average results for black carbon aerosol semi-direct effects are small due to cancellation of regionally positive or negative effects, and may be positive or negative overall, depending on the model setup. The presence of mineral dust aerosol above dark surfaces and below a layer containing black carbon aerosol may enhance the reflectivity and act to enhance the positive radiative effect of black carbon aerosol. When mineral dust is absent the semi-direct effect at the top-of-atmosphere of black carbon aerosol from both anthropogenic and natural sources is −0.03 Wm−2, while averaging to +0.09 Wm−2 if dust is included.


2015 ◽  
Vol 42 (12) ◽  
pp. 4964-4972 ◽  
Author(s):  
Mahesh Kovilakam ◽  
Salil Mahajan

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