Impact of anthropogenic aerosols from global, East Asian, and non-East Asian sources on East Asian summer monsoon system
Impact of anthropogenic aerosols from global, East Asian, and non-East Asian sources on East Asian summer monsoon system
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全球、东亚和非东亚来源的人为气溶胶对东亚夏季风系统的影响
DOI：
10.1016/j.atmosres.2016.08.023
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发表时间：
2017
影响因子：
5.5
通讯作者：
Zhang Hua
中科院分区：
文献类型：
--
作者：
Wang Qiuyan;Wang Zhili;Zhang Hua
使用气溶胶-气候在线模型 BCC_AGCM2.0.1_CUACE/Aero 研究了全球、东亚和非东亚来源的人为气溶胶对东亚夏季风 (EASM) 系统的总影响。结果表明，由于 2000 年全球气溶胶排放量相对 1850 年有所增加，东亚季风区 (EAMR) 大气层顶部 (TOA) 和地表的夏季平均全天短波通量分别减少了 4.8 和 5.0 W m−2。辐射的变化及其引起的热量和水输送以及云分数的变化共同导致了夏季 EAMR 的地表变冷。全球人为气溶胶的增加分别导致 EAMR 夏季平均地表温度降低 2.1 K，夏季平均地表压力升高 0.4 hPa。结果表明，陆地表面温度和压力的变化明显大于海洋，从而降低了陆海表面温度和压力的对比度。导致夏季我国东部、南部及周边海域北风、东北风异常明显，东亚夏季风减弱。 EAMR 夏季平均降水量减少了 12%。非东亚气溶胶排放变化对局地气温、气压变化起着更重要的诱发作用，从而显着加剧了东亚夏季风环流因局地气溶胶变化而减弱的情况。两者造成的环流减弱程度相当，甚至个别地区非局地气溶胶的影响也更大。局地和非局地气溶胶的变化对海洋降水减少的贡献相当，而对中国东部的影响则相反。我们的结果强调了东亚以外的气溶胶变化在人为气溶胶变化对 EASM 影响中的重要性。
The impact of the total effects due to anthropogenic aerosols from global, East Asian, and non-East Asian sources on East Asian summer monsoon (EASM) system is studied using an aerosol-climate online model BCC_AGCM2.0.1_CUACE/Aero. The results show that the summer mean net all-sky shortwave fluxes averaged over East Asian monsoon region (EAMR) at the top of the atmosphere (TOA) and surface reduce by 4.8 and 5.0 W m− 2, respectively, due to the increases of global aerosol emissions in 2000 relative to 1850. Changes in radiations and their resulting changes in heat and water transport and cloud fraction contribute together to the surface cooling over EAMR in summer. The increases in global anthropogenic aerosols lead to a decrease of 2.1 K in summer mean surface temperature and an increase of 0.4 hPa in summer mean surface pressure averaged over EAMR, respectively. It is shown that the changes in surface temperature and pressure are significantly larger over land than ocean, thus decreasing the contrast of land-sea surface temperature and pressure. This results in the marked anomalies of north and northeast winds over eastern and southern China and the surrounding oceans in summer, thereby weakening the EASM. The summer mean precipitation averaged over the EAMR reduces by 12%. The changes in non-East Asian aerosol emissions play a more important role in inducing the changes of local temperature and pressure, and thus significantly exacerbate the weakness of the EASM circulation due to local aerosol changes. The weakening of circulation due to both is comparable, and even the effect of non-local aerosols is larger in individual regions. The changes of local and non-local aerosols contribute comparably to the reductions in precipitation over oceans, whereas cause opposite changes over eastern China. Our results highlight the importance of aerosol changes outside East Asia in the impact of the changes of anthropogenic aerosols on EASM.
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影响因子：
4.9
作者：
H. Morrison;A. Gettelman
通讯作者：
H. Morrison;A. Gettelman
DOI：
10.3402/tellusb.v64i0.18965
发表时间：
2012-01
期刊：
Tellus B: Chemical and Physical Meteorology
影响因子：
--
作者：
Chunhong Zhou;S. Gong;Xiaoye Zhang;Hongli Liu;M. Xue;G. Cao;X. An;H. Che;Yangmei Zhang
通讯作者：
Chunhong Zhou;S. Gong;Xiaoye Zhang;Hongli Liu;M. Xue;G. Cao;X. An;H. Che;Yangmei Zhang
云和气溶胶
DOI：
10.1017/9781107447738.012
发表时间：
2020
期刊：
Clouds and Climate
影响因子：
--
作者：
P. Bernath;U. Schumann
通讯作者：
U. Schumann
影响因子：
5.2
作者：
Bollasina, Massimo A.;Ming, Yi;Naik, Vaishali
通讯作者：
Naik, Vaishali
影响因子：
2.3
作者：
Han Zhi-wei;Xiong Zhe;Li Jia-wei
通讯作者：
Han Zhi-wei;Xiong Zhe;Li Jia-wei