کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5428870 | 1508693 | 2013 | 13 صفحه PDF | دانلود رایگان |

A heavy dust storm that occurred in Northwestern China during April 24-30 2010 was studied using observational data along with the Fu-Liou radiative transfer model. The dust storm was originated from Mongolia and affected more than 10 provinces of China. Our results showed that dust aerosols have a significant impact on the radiative energy budget. At Minqin (102.959°E, 38.607°N) and Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL, 104.13°E, 35.95°N) sites, the net radiative forcing (RF) ranged from 5.93 to 35.7 W mâ2 at the top of the atmosphere (TOA), â6.3 to â30.94 W mâ2 at surface, and 16.77 to 56.32 W mâ2 in the atmosphere. The maximum net radiative heating rate reached 5.89 K at 1.5 km on 24 April at the Minqin station and 4.46 K at 2.2 km on 29 April at the SACOL station. Our results also indicated that the radiative effect of dust aerosols is affected by aerosol optical depth (AOD), single-scattering albedo (SSA) and surface albedo. Modifications of the radiative energy budget by dust aerosols may have important implications for atmospheric circulation and regional climate.
⺠Dust aerosols' optical properties and radiative effects were investigated. ⺠We have surface observations on Minqin and SACOL where heavy dust storm occurred. ⺠Accurate input parameters for model were acquired from ground-based measurements. ⺠Aerosol's optical properties may have changed when transported.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 122, June 2013, Pages 114-126