Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029013 |
Intraseasonal Variation of the Black Carbon Aerosol Concentration and Its Impact on Atmospheric Circulation Over the Southeastern Tibetan Plateau | |
Yang, Jing1,2,3; Wang, Wei-Chyung3; Chen, Guoxing3; Bao, Qing4; Qi, Xin1,2; Zhou, Siyuan1,2 | |
2018-10-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:19页码:10881-10894 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The black carbon (BC) concentration over the southeastern Tibetan Plateau is modulated by atmospheric intraseasonal variations and in turn affects atmospheric circulation through both direct radiative atmospheric warming and surface cooling. Based on an intraseasonal dry-wet phase transition over the southeastern Tibetan Plateau, we investigated the short-term radiative-dynamic coupling of the atmosphere with changes in the concentration of BC using both observations and numerical sensitivity experiments. The observed local concentrations of BC increased by >50% as a result of the enhanced convergence and upward migration associated with the development of an intraseasonal anomalous lower-level cyclone. Calculations using an offline radiation transfer model showed that this increase in BC concentration led to similar to 4 W/m(2) of atmospheric radiative warming and similar to 2 W/m(2) of surface radiative cooling. Consequently, an anomalous lower-level cyclone with an average wind speed of 0.5 m/s (similar to 10% of the natural change from a dry to a wet phase) developed in a linear baroclinic model and an aerosol-aware WRF model, which was mainly a result of the atmospheric warming while the surface cooling played only a minor role. Although the change in precipitation was small, cloud fraction was significantly increased due to the enhanced upward motion in the atmosphere. This warrants further studies of cloud adjustments to the BC concentration on both cloud fraction and microphysics aspects. The present study illustrates that consideration of aerosol-circulation coupling is imperative to advance the subseasonal prediction of atmospheric circulation. Plain Language Summary The present study illustrates that consideration of aerosol-circulation coupling is imperative to advance the subseasonal prediction of atmospheric circulation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448374800006 |
WOS关键词 | STRATOCUMULUS-RADIATION INTERACTIONS ; CIRRUS CLOUDS ; ASIAN MONSOON ; LAND-SURFACE ; SUMMER ; PRECIPITATION ; MODEL ; OSCILLATION ; TRANSPORT ; RAINFALL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32747 |
专题 | 气候变化 |
作者单位 | 1.Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, State Key Lab Earth Surface Proc & Resource Ecol, Minist Civil Affairs,Fac Geog Sci, Beijing, Peoples R China; 2.Beijing Normal Univ, Fac Geog Sci, Minist Educ, Beijing, Peoples R China; 3.SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA; 4.Chinese Acad Sci, IAP, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Jing,Wang, Wei-Chyung,Chen, Guoxing,et al. Intraseasonal Variation of the Black Carbon Aerosol Concentration and Its Impact on Atmospheric Circulation Over the Southeastern Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(19):10881-10894. |
APA | Yang, Jing,Wang, Wei-Chyung,Chen, Guoxing,Bao, Qing,Qi, Xin,&Zhou, Siyuan.(2018).Intraseasonal Variation of the Black Carbon Aerosol Concentration and Its Impact on Atmospheric Circulation Over the Southeastern Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(19),10881-10894. |
MLA | Yang, Jing,et al."Intraseasonal Variation of the Black Carbon Aerosol Concentration and Its Impact on Atmospheric Circulation Over the Southeastern Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.19(2018):10881-10894. |
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