中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地球环境研究所
  3. 中国科学院地球环境研究所
  4. 古环境研究室
Effects of dust-in-snow forcing over the Tibetan Plateau on the East Asian dust cycle during the Last Glacial Maximum

文献类型：期刊论文

作者Shen, Jiaojiao2,3,4; Xie, Xiaoning2,5; Cheng, Xugeng1; Liu, Xiaodong2,3
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2020-03-15
卷号542页码:13
ISSN号0031-0182
关键词Dust flux Sensible heat Anticyclone Positive feedback Westerlies Climatic warming
DOI10.1016/j.palaeo.2019.109442
通讯作者Xie, Xiaoning(xnxie@ieecas.cn)
英文摘要The improved Community Atmosphere Model version 4 with a Bulk Aerosol Model parameterizations of the dust size distribution (CAM4-BAM) was used to investigate the dust-in-snow radiative forcing (SRF) over the Tibetan Plateau (TP) and its feedbacks on the regional climate and the dust cycle in spring, the season with the strongest dust activity, over East Asia during the Last Glacial Maximum (LGM). Simulated results show that the dust in snow can cause a large positive SRF and significant warming at the TP surface, reaching more than 45 W m(-2) and 3-5 degrees C warming in western TP during the LGM. The SRF increases the East Asian dust emissions, dry deposition and wet deposition by 71.6 Tg (8.1%), 34.5 Tg (7.0%) and 7.9 Tg (16.0%), respectively, in spring during LGM. Further analysis reveals that, the SRF warms the TP surface and enhances the thermal effect of the TP in spring by increasing the surface shortwave radiative forcing, sensible and latent heat fluxes. A mid-upper level anticyclonic circulation anomaly is generated, thus increases the regional westerly wind over the East Asian dust source region, and in turn enhances the dust emission and dust transport over East Asia. In general, SRF over the TP creates a positive feedback loop of enhancing the East Asian dust cycle during LGM.
WOS关键词TRANS-PACIFIC TRANSPORT ; MINERAL DUST ; RADIATIVE FEEDBACKS ; CLIMATE ; AEROSOLS ; SIMULATION ; COVER ; SIZE ; AGE
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070103] ; National Key Research and Development Program of China[2016YFA0601904] ; National Natural Science Foundation of China[41991254] ; National Natural Science Foundation of China[41690115] ; CAS Light of West China Program
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000517852600011
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS Light of West China Program
源URL[http://ir.ieecas.cn/handle/361006/12764]  
专题地球环境研究所_古环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Xie, Xiaoning
作者单位1.Nanjing Univ Sci Informat & Technol, China Meteorol Adm, Key Lab Aerosol Cloud Precipitat, Nanjing 210044, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Shaanxi Prov Meteorol Bur, Xian 710014, Peoples R China
5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Jiaojiao,Xie, Xiaoning,Cheng, Xugeng,et al. Effects of dust-in-snow forcing over the Tibetan Plateau on the East Asian dust cycle during the Last Glacial Maximum[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,542:13.
APA Shen, Jiaojiao,Xie, Xiaoning,Cheng, Xugeng,&Liu, Xiaodong.(2020).Effects of dust-in-snow forcing over the Tibetan Plateau on the East Asian dust cycle during the Last Glacial Maximum.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,542,13.
MLA Shen, Jiaojiao,et al."Effects of dust-in-snow forcing over the Tibetan Plateau on the East Asian dust cycle during the Last Glacial Maximum".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 542(2020):13.

入库方式： OAI收割

来源：地球环境研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。