Changes of climate and seasonally frozen ground over the past 30 years in Qinghai-Xizang (Tibetan) Plateau, China
文献类型：期刊论文
| 作者 | Zhao, L; Ping, CL; Yang, DQ; Cheng, GD; Ding, YJ; Liu, SY |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 43期号:1-2页码:19-31 |
| 关键词 | climate changes seasonally frozen ground Qinghai-Tibet plateau hierarchical cluster analysis |
| ISSN号 | 0921-8181 |
| 通讯作者 | Zhao, L(linzhao@ns.lzb.ac.cn) |
| 英文摘要 | Air temperature, ground surface temperature (GST; 0 cm at depth), precipitation and freezing depth data at 50 meteorological stations in the Qinghai-Tibet Plateau (QTP) were analyzed to examine changes of climate and seasonally frozen ground (SFG) in the past 30 years. The latitude, longitude, elevation, mean annual air temperature (MAAT), annual precipitation (AP) and maximum freezing depth at each station were used as the criterions to group the stations by the Hierarchical Cluster Analysis method. Fifty stations were grouped into four clusters, which are distributed in different regions of QTP. The most significant climate warming occurred in northeastern QTP, and the warming trend was greater in the cold season than in the warm season. Annual precipitation (AP) increased in the northwestern, inland and southeastern regions of QTP, but decreased in the northeastern QTP. The most significant changes of seasonally frozen ground (SFG) occurred in regions with thickest SFG, i.e., inland QTP, then northeastern and northwestern QTP. The duration of SFG shortened differently in different regions. Significant changes also occurred in the inland and northeastern regions of QTP. The cold season air temperature is the main factor controlling SFG change. The warming trends of ground surface temperatures are more significant than air temperature, and the warm season warming is greater than cold season warming. Changes of SFG depth, duration and surface temperature are likely to enhance heat exchanges between ground and atmosphere, in favor of stronger plateau monsoons. (C) 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | INDIAN MONSOON ; ACTIVE LAYER ; PRECIPITATION ; ENSO |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000223729100002 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557003 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, L |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Univ Alaska Fairbanks, Palmer Res Ctr, Agr & Forestry Expt Stn, Palmer, AK 99645 USA 3.Univ Alaska Fairbanks, Water & Environm Res Ctr, Fairbanks, AK 99775 USA |
| 推荐引用方式 GB/T 7714 | Zhao, L,Ping, CL,Yang, DQ,et al. Changes of climate and seasonally frozen ground over the past 30 years in Qinghai-Xizang (Tibetan) Plateau, China[J]. GLOBAL AND PLANETARY CHANGE,2004,43(1-2):19-31. |
| APA | Zhao, L,Ping, CL,Yang, DQ,Cheng, GD,Ding, YJ,&Liu, SY.(2004).Changes of climate and seasonally frozen ground over the past 30 years in Qinghai-Xizang (Tibetan) Plateau, China.GLOBAL AND PLANETARY CHANGE,43(1-2),19-31. |
| MLA | Zhao, L,et al."Changes of climate and seasonally frozen ground over the past 30 years in Qinghai-Xizang (Tibetan) Plateau, China".GLOBAL AND PLANETARY CHANGE 43.1-2(2004):19-31. |
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来源：寒区旱区环境与工程研究所
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