Spatiotemporal changes of freezing/thawing indices and their response to recent climate change on the Qinghai-Tibet Plateau from 1980 to 2013
文献类型：期刊论文
| 作者 | Wu, Tonghua; Qin, Yanhui; Wu, Xiaodong; Li, Ren; Zou, Defu; Xie, Changwei |
| 刊名 | THEORETICAL AND APPLIED CLIMATOLOGY
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 132期号:3-4页码:1187-1199 |
| ISSN号 | 0177-798X |
| DOI | 10.1007/s00704-017-2157-y |
| 通讯作者 | Wu, Tonghua(thuawu@lzb.ac.cn) |
| 英文摘要 | The spatial and temporal changes of the ground surface freezing indices (GFIs), ground surface thawing indices (GTIs), air freezing indices (AFIs), and air thawing indices (ATIs) in permafrost and seasonally frozen ground regions of the Qinghai-Tibet Plateau (QTP) were analyzed based on the daily ground surface and air temperatures from 69 meteorological stations using the Mann-Kendall test and Sen's slope estimate. The spatial patterns of the freezing indices (FIs) and thawing indices (TIs) are nearly negatively correlated. On the annual scale, the GFI and GTI are greater than the AFI and ATI in both permafrost and seasonally frozen ground regions. The marked upward and downward trends have been observed for the time series of TI and FI, respectively, since 1998 on the QTP. Moreover, GFI and AFI decrease more significantly in permafrost regions than in seasonally frozen ground regions; the increasing rate of GTI and ATI in the seasonally frozen ground regions is greater than that in the permafrost regions. In permafrost regions, the downward trend of FI is greater than the upward trend of TI. However, the upward trend of TI shows a more drastic change than the FI in the seasonally frozen ground regions. The results indicate that the warming in the permafrost regions is more pronounced in winter than in the other seasons. The summer warming is more pronounced than the other seasons in the seasonally frozen ground regions. The decreasing rate of AFI and GFI increases as the altitude rises, while they decrease with increasing ATI. The average decreasing rate of GFI is greater than that of the AFI in different altitudinal zones. The greatest decrease of FI occurs in permafrost regions in the hinterland of the QTP, which indicates the dominant winter warming in this region. The downward trend of FI and upward trend of TI are responsible for the reported permafrost degradation on the QTP. |
| 收录类别 | SCI |
| WOS关键词 | ACTIVE-LAYER THICKNESS ; SEASONAL SNOW COVER ; KUPARUK RIVER-BASIN ; NORTHEAST CHINA ; WESTERN CHINA ; THAWING INDEX ; PERMAFROST ; VARIABILITY ; ALASKA ; USA |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000430539000039 |
| 出版者 | SPRINGER WIEN |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558154 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu, Tonghua |
| 作者单位 | Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Tonghua,Qin, Yanhui,Wu, Xiaodong,et al. Spatiotemporal changes of freezing/thawing indices and their response to recent climate change on the Qinghai-Tibet Plateau from 1980 to 2013[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2018,132(3-4):1187-1199. |
| APA | Wu, Tonghua,Qin, Yanhui,Wu, Xiaodong,Li, Ren,Zou, Defu,&Xie, Changwei.(2018).Spatiotemporal changes of freezing/thawing indices and their response to recent climate change on the Qinghai-Tibet Plateau from 1980 to 2013.THEORETICAL AND APPLIED CLIMATOLOGY,132(3-4),1187-1199. |
| MLA | Wu, Tonghua,et al."Spatiotemporal changes of freezing/thawing indices and their response to recent climate change on the Qinghai-Tibet Plateau from 1980 to 2013".THEORETICAL AND APPLIED CLIMATOLOGY 132.3-4(2018):1187-1199. |
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来源：寒区旱区环境与工程研究所
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