Variation and interplay of the Siberian High and westerlies in central-east Asia during the past 1200 kyr
文献类型：期刊论文
| 作者 | Wang, Fei1,2; Li, Zaijun1,2; Wang, Xin1,2; Li, Baofeng3; Chen, Fahu1,2 |
| 刊名 | AEOLIAN RESEARCH
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 33页码:62-81 |
| ISSN号 | 1875-9637 |
| 关键词 | Badain Jaran Desert Tengger Desert Aeolian deposition Global cooing Tibetan Plateau uplift |
| DOI | 10.1016/j.aeolia.2018.05.003 |
| 通讯作者 | Wang, Fei(wangfei@lzu.edu.cn) |
| 英文摘要 | The Siberian High (SH) and the westerlies interact in the central-east Asia and jointly influence the aeolian variations in the Northern Hemisphere. However, the spatiotemporal variations of the two climatic systems, as well as their interaction, are still unclear. Here, we present a reconstruction of the variation of two systems during the past 1200 kyr based on grain-size analyses of multiple aeolian sequences from central-east Asia along the path of the westerlies and from the area downwind of the SH. The results show that the SH and the resulting winds exhibited a stepwise enhancement at 900,700 and 300 ka, and that the SH expanded significantly towards western China at 300 ka. In addition, the westerlies dominated western China as far east as the Badain Jaran area during 1200-500 kyr with an enhancement at 900 ka, and then gradually weakened following a striking enhancement at 500 ka; subsequently, their influence on aeolian activity in western China progressively decreased and was replaced by an enhanced SH at 300 ka. With the gradual increase of the SH at 700 and 300 ka, its influence reached the altitude of the westerlies and thus significantly affected the westerlies dust size. The mid-Pleistocene uplift of the Tibetan Plateau (1200-600 kyr) intensified the SH and resulted in the blocking of the westerlies, weakening the wind strength and producing dry conditions in western China at 500 ka. Increasing global ice volume is also responsible for the variations and interplay of SH and westerlies, especially at 300 ka. |
| 收录类别 | SCI |
| WOS关键词 | CHINESE LOESS PLATEAU ; GRAIN-SIZE DISTRIBUTION ; BADAIN JARAN DESERT ; MIDDLE PLEISTOCENE TRANSITION ; CENTRAL TENGGER DESERT ; TIBETAN PLATEAU ; NORTHERN CHINA ; TAKLIMAKAN DESERT ; INNER-MONGOLIA ; LATE PLIOCENE |
| WOS研究方向 | Physical Geography |
| WOS类目 | Geography, Physical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000442332800007 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557768 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Fei |
| 作者单位 | 1.Lanzhou Univ, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou, Gansu, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Fei,Li, Zaijun,Wang, Xin,et al. Variation and interplay of the Siberian High and westerlies in central-east Asia during the past 1200 kyr[J]. AEOLIAN RESEARCH,2018,33:62-81. |
| APA | Wang, Fei,Li, Zaijun,Wang, Xin,Li, Baofeng,&Chen, Fahu.(2018).Variation and interplay of the Siberian High and westerlies in central-east Asia during the past 1200 kyr.AEOLIAN RESEARCH,33,62-81. |
| MLA | Wang, Fei,et al."Variation and interplay of the Siberian High and westerlies in central-east Asia during the past 1200 kyr".AEOLIAN RESEARCH 33(2018):62-81. |
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来源：寒区旱区环境与工程研究所
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