Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3585-1 |
The link between Tibetan Plateau monsoon and Indian summer precipitation: a linear diagnostic perspective | |
Ge, Fei1,2,3,4; Sielmann, Frank5; Zhu, Xiuhua6; Fraedrich, Klaus2; Zhi, Xiefei3,4; Peng, Ting3,4; Wang, Lei1 | |
2017-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany |
英文摘要 | The thermal forcing of the Tibetan Plateau (TP) is analyzed to investigate the formation and variability of Tibetan Plateau Summer Monsoon (TPSM), which affects the climates of the surrounding regions, in particular the Indian summer monsoon precipitation. Dynamic composites and statistical analyses indicate that the Indian summer monsoon precipitation is less/greater than normal during the strong/weak TPSM. Strong (weak) TPSM is associated with an anomalous near surface cyclone (anticyclone) over the western part of the Tibetan Plateau, enhancing (reducing) the westerly flow along its southern flank, suppressing (favoring) the meridional flow of warm and moist air from the Indian ocean and thus cutting (providing) moisture supply for the northern part of India and its monsoonal rainfall. These results are complemented by a dynamic and thermodynamic analysis: (i) A linear thermal vorticity forcing primarily describes the influence of the asymmetric heating of TP generating an anomalous stationary wave flux. Composite analysis of anomalous stationary wave flux activity (after Plumb in J Atmos Sci 42:217-229, 1985) strongly indicate that non-orographic effects (diabatic heating and/or interaction with transient eddies) of the Tibetan Plateau contribute to the generation of an anomalous cyclone (anti-cyclone) over the western TP. (ii) Anomalous TPSM generation shows that strong TPSM years are related to the positive surface sensible heating anomalies over the eastern TP favoring the strong diabatic heating in summer. While negative TPSM years are associated with the atmospheric circulation anomalies during the preceding spring, enhancing northerly dry-cold air intrusions into TP, which may weaken the condensational heat release in the middle and upper troposphere, leading to a weaker than normal summer monsoon over the TP in summer. |
英文关键词 | Tibetan Plateau summer monsoon (TPSM) Tibetan Plateau thermal forcing Asymmetric influence Indian summer monsoon rainfall |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415579000034 |
WOS关键词 | NORTHERN-HEMISPHERE ; ATMOSPHERIC CIRCULATION ; SUBTROPICAL ANTICYCLONE ; GENERAL-CIRCULATION ; RECENT DECADES ; HEAT-SOURCE ; CLIMATE ; RAINFALL ; VARIABILITY ; REANALYSIS |
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/35667 |
专题 | 气候变化 |
作者单位 | 1.Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu, Sichuan, Peoples R China; 2.Max Planck Inst Meteorol, Hamburg, Germany; 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 4.Nanjing Univ Informat Sci & Technol, KLME, Nanjing, Jiangsu, Peoples R China; 5.Hamburg Univ, Meteorol Inst, Hamburg, Germany; 6.Hamburg Univ, Klima Campus, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Ge, Fei,Sielmann, Frank,Zhu, Xiuhua,et al. The link between Tibetan Plateau monsoon and Indian summer precipitation: a linear diagnostic perspective[J]. CLIMATE DYNAMICS,2017,49. |
APA | Ge, Fei.,Sielmann, Frank.,Zhu, Xiuhua.,Fraedrich, Klaus.,Zhi, Xiefei.,...&Wang, Lei.(2017).The link between Tibetan Plateau monsoon and Indian summer precipitation: a linear diagnostic perspective.CLIMATE DYNAMICS,49. |
MLA | Ge, Fei,et al."The link between Tibetan Plateau monsoon and Indian summer precipitation: a linear diagnostic perspective".CLIMATE DYNAMICS 49(2017). |
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