Numerical simulation of the flow velocity and change in the future of the SG4
文献类型：期刊论文
| 作者 | Wu Zhen1; Liu Shiyin2; Zhang Huiwen3,4 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 9期号:4页码:12 |
| 关键词 | SG4 Ice dynamic Velocity Glacier changes |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-015-2284-7 |
| 通讯作者 | Wu Zhen(wuzhen@lzb.ac.cn) |
| 英文摘要 | Based on glacier dynamic theory, a two-dimensional velocity field model is developed to apply for the Qilian Shuiguan River glacier no. 4 (SG4). Our analysis shows that the glacier bedrock slope and shape affect the ice flow velocity together. The hydrological parameter k was adjusted in the model to fit the measured average flow velocities in summer and winter. The simulated results show that parameter k has a considerable impact on the glacier surface velocity, indicating that the water pressure under the glacier's base is a major factor leading to basal sliding and ice velocity. The simulation shows that the glacier thickness, bedrock slope, bedrock shape, and basal slide jointly effect the glacier movement. The annual average mass balance was used to forecast the changes over the next 50 years based on the continuity equation. The results forecast the shrinkage of nearly 400 m in the terminus and glacier area over the next 50 years; the longitudinal section will diminish by nearly 29.2 %, and the average thickness will decrease by 47 %. If the effective glacier hydrology and geothermal temperature changes are taken into account, the actual retreat will be more substantial than that shown in our model. |
| 收录类别 | SCI |
| WOS关键词 | ICE-SHEET MODELS ; SURFACE VELOCITY ; CLIMATE-CHANGE ; GLACIER DYNAMICS ; QILIAN MOUNTAINS ; TIBETAN PLATEAU ; DRAINAGE SYSTEM ; CRATER GLACIER ; HIGHER-ORDER ; BASAL |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000374256200026 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557297 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu Zhen |
| 作者单位 | 1.China Earthquake Adm, Lanzhou Inst Seismol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 3.Gansu Desert Control Res Inst, State Key Lab Breeding Base Desertificat & Aeolia, Lanzhou 730070, Peoples R China 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Heihe Key Lab Ecohydrol & Integrated River, Key Lab Ecohydrol Inland River Basins, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu Zhen,Liu Shiyin,Zhang Huiwen. Numerical simulation of the flow velocity and change in the future of the SG4[J]. ARABIAN JOURNAL OF GEOSCIENCES,2016,9(4):12. |
| APA | Wu Zhen,Liu Shiyin,&Zhang Huiwen.(2016).Numerical simulation of the flow velocity and change in the future of the SG4.ARABIAN JOURNAL OF GEOSCIENCES,9(4),12. |
| MLA | Wu Zhen,et al."Numerical simulation of the flow velocity and change in the future of the SG4".ARABIAN JOURNAL OF GEOSCIENCES 9.4(2016):12. |
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来源：寒区旱区环境与工程研究所
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