IMPACT OF SAHARA DUST AEROSOLS ON REGIONAL CLIMATE OVER THE IBERIAN PENINSULA WITH RegCM4

被引：0
作者：
San Jose, Roberto [1 ]
Perez, Juan L. [1 ]
Gonzalez, Rosa M. [2 ]
Orte, Jesus [2 ]
机构：
[1] Tech Univ Madrid, Sch Comp Sci, Environm Software & Modelling Grp, Madrid 28660, Spain
[2] Fac Phys, Dept Meteorol & Geophys, Madrid 28040, Spain
来源：
FRESENIUS ENVIRONMENTAL BULLETIN | 2014年 / 23卷 / 11期
关键词：
RegCM4; climate; dust; dynamical downscaling; MESOSCALE CONVECTIVE SYSTEM; WEST-AFRICA; MINERAL DUST; SIMULATION; PRECIPITATION; MODEL; TEMPERATURE; VARIABILITY; SENSITIVITY; PARTICLES;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The objective of our study is to investigate the impact of dust aerosols and future changes on regional climate over the Iberian Peninsula, where dust events frequently occur because Sahara desert is very close. The climatic effects of dust aerosols are investigated using the last version of the Regional Climate Model system RegCM4 with a spatial resolution of 20 Km and 18 sigma vertical levels. In relation to the first simulation, initial and lateral boundary conditions are created using reanalysis data. In the second experiment, there is two simulations for the 2050 year with boundary conditions from the CCM3 global model, one containing concentration of dust aerosols and the other omitting dust. The effects of Sahara dust events on ground temperatures and precipitations are presented in this work. The results indicated that dust aerosols generally produced negative radiative forcing at the top of the atmosphere over most areas.
引用
收藏
页码：2762 / 2770
页数：9
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