caa a22 4500 445299770 CHVBK 20180317142553.0 cr unu---uuuuu 170323e20100701xx s 000 0 eng 10.1007/s11430-010-3079-z doi (NATIONALLICENCE)springer-10.1007/s11430-010-3079-z Model analysis of aerosol optical depth distributions over East Asia [Elektronische Daten] [Xiao Han, MeiGen Zhang, ZhiWei Han, JinYuan Xin, LiLi Wang, JinHuan Qiu, YanJu Liu] Based on simulated major aerosol concentrations (e.g., sulfate, nitrate, ammonium, organic carbon, black carbon, and sea salt) over East Asia during the year 2005 by using the Multi-scale Air Quality modeling system (RAMS-CMAQ), the aerosol optical depth (AOD) was calculated by the reconstruction mass-extinction method and then analyzed to explore its characteristics in temporal-spatial distributions. For evaluating the model performances, simulated AOD values were compared against observations at stations of the Aerosol Robotic Network (AERONET) and the Chinese Sun Hazemeter Network (CSHNET). The comparison shows that the model can well reproduce observed temporal and spatial features of AOD, especially in natural environment. However, the simulated AOD values are underestimated over urban and suburban regions with dense human activities. Analysis of simulation results indicates that AOD varies significantly in time and space, and generally, AOD values are lower in summer and higher in winter. Excluding the contribution from soil dust aerosols, high AOD values (over 0.8) are found over the Sichuan Basin, South China, and Central China in several months, while low values (less than 0.2) are over northern and western areas of East Asia and southern sea regions. Analysis also shows that aerosols such as sulfate, nitrate, and ammonium are main contributors to AOD in East Asia, and their contributions are over 80% in most high AOD areas, while black carbon aerosols play an important role in northern China where dense human activities exist, especially in the winter time. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 CMAQ nationallicence black carbon aerosol nationallicence sulfate nationallicence AERONET nationallicence AOD nationallicence Han Xiao State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Zhang MeiGen State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Han ZhiWei Key Laboratory of Regional Climate-Environment Research for Temperate East Asia of Chinese Academy of Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Xin JinYuan State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Wang LiLi State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Qiu JinHuan Open Laboratory for Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Liu YanJu Department of Environmental Pollution Analysis and Control, Beijing Center for Physical and Chemical Analysis, 100089, Beijing, China aut Science China Earth Sciences SP Science China Press 53/7(2010-07-01), 1079-1090 1674-7313 53:7<1079 2010 53 11430 https://doi.org/10.1007/s11430-010-3079-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-3079-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Han Xiao State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Zhang MeiGen State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Han ZhiWei Key Laboratory of Regional Climate-Environment Research for Temperate East Asia of Chinese Academy of Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Xin JinYuan State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Wang LiLi State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Qiu JinHuan Open Laboratory for Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Liu YanJu Department of Environmental Pollution Analysis and Control, Beijing Center for Physical and Chemical Analysis, 100089, Beijing, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/7(2010-07-01), 1079-1090 1674-7313 53:7<1079 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer