| Application of a distributed degree-day model of glaciers in the upper reaches of the Beida River Basin | |
| Wang, S (Wang, Sheng)1; Wang, JF (Wang, Jinfeng)2; Pu, JC (Pu, Jianchen)3; Wang, S | |
| Source Publication | ENVIRONMENTAL EARTH SCIENCES
 |
| 2016 | |
| Volume | 75Issue:6Pages:493 |
| DOI | 10.1007/s12665-015-4973-7 |
| Abstract | Based on in-situ data of Qiyi Glacier from 2010 to 2012, a daily distributed degree-day model on a 90 x 90 m grid was developed to simulate the spatial and temporal variations of the glacier mass balance, ELA, and meltwater run-off depth in the Beida River Basin from 1957 to 2012. In the model, different vertical lapse rates of temperature and precipitation gradients were used in different months and height-belts, and the influence of 'temperature jump' was also considered. The results indicated that the average annual mass balance and meltwater run-off depth of the glaciers in the Beida River Basin were -93.3 mm w.e. and 443 mm, respectively. Assuming a continuous linear trend, the ELA had risen by 505 m over 55 years. The mass balance linearly increased with the altitude in the cold season (Oct.-Apr.) and exponentially in the warm season (May-Sep.). The most possible abrupt change points of the mass balance, ELA, and meltwater run-off depth time series were all in 1992/93, as determined through the M-K test. The mass balance turned increasingly negative since then, but the ELA and meltwater run-off increased rapidly. The climate sensitivity test showed that the air temperature was a dominant factor that affected the mass balance of the continental glaciers on the basin scale, which was different from the response mechanism of maritime glaciers. When the air temperature (+1 degrees C) and precipitation (+10 %) increased simultaneously, the glacier mass loss and meltwater run- off reached 1.66 x 10(8) m(3) and 2.45 x 10(8) m(3), respectively. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000372251000044 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Sea-level Rise Equilibrium-line Altitude Surface-energy-balance Mass-balance Climate-change Ice Caps Sensitivity Switzerland Radiation Darolla |
| Cooperation Status | 国内 |
| Department | 环境 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7746 |
| Collection | 图书馆 |
| Corresponding Author | Wang, S |
| Affiliation | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, S ,Wang, JF ,Pu, JC ,et al. Application of a distributed degree-day model of glaciers in the upper reaches of the Beida River Basin[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(6):493. |
| APA | Wang, S ,Wang, JF ,Pu, JC ,&Wang, S.(2016).Application of a distributed degree-day model of glaciers in the upper reaches of the Beida River Basin.ENVIRONMENTAL EARTH SCIENCES,75(6),493. |
| MLA | Wang, S ,et al."Application of a distributed degree-day model of glaciers in the upper reaches of the Beida River Basin".ENVIRONMENTAL EARTH SCIENCES 75.6(2016):493. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.75(6) 493 2016.pdf（1338KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment