Spatial modeling of permafrost distribution and properties on the Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Wu, Xiaobo1,2; Nan, Zhuotong3,4; Zhao, Shuping3,4; Zhao, Lin1; Cheng, Guodong1 |
| 刊名 | PERMAFROST AND PERIGLACIAL PROCESSES
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 29期号:2页码:86-99 |
| 关键词 | hydrological and thermal properties land surface model permafrost distribution Qinghai-Tibet Plateau |
| ISSN号 | 1045-6740 |
| DOI | 10.1002/ppp.1971 |
| 通讯作者 | Zhao, Shuping(nanzt@njnu.edu.cn) |
| 英文摘要 | Accurate information on the distribution of permafrost and its thermal and hydrological properties is critical for environmental management and engineering development. This study modeled the current state of permafrost on the Qinghai-Tibet Plateau (QTP), including the spatial distribution of permafrost, active-layer thickness (ALT), mean annual ground temperature (MAGT), depth of zero annual amplitude (DZAA) and ground-ice content using an improved Noah land surface model (LSM). The improved model was examined at a typical permafrost site and then applied to the entire QTP using existing gridded meteorological data and newly developed soil data. The simulated permafrost distribution and properties were validated against existing permafrost maps in three representative survey areas and with measurements from 54 boreholes. The results indicate that the Noah LSM with augmented physics and proper soil data support can model permafrost over the QTP. Permafrost was simulated to underlie an area of 1.113 x 10(6) km(2) in 2010, accounting for 43.8% of the entire area of the QTP. The modeled regional average ALT and MAGT were 3.23m and -1.56 degrees C, respectively. Spatially, MAGT increases and DZAA becomes shallower from north to south. Thermally unstable permafrost (MAGT above -0.5 degrees C) is predominant, accounting for 38.75% of the whole permafrost area on the QTP. Ice-rich permafrost was mainly simulated around lakes across the north-central QTP. |
| 收录类别 | SCI |
| WOS关键词 | ACTIVE LAYER ; GROUND CONDITIONS ; CLIMATE-CHANGE ; THERMAL STATE ; FROZEN SOIL ; CHINA ; AREA ; PARAMETERIZATION ; CONDUCTIVITY ; SIMULATIONS |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000430304700002 |
| 出版者 | WILEY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558149 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Shuping |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing, Jiangsu, Peoples R China 4.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xiaobo,Nan, Zhuotong,Zhao, Shuping,et al. Spatial modeling of permafrost distribution and properties on the Qinghai-Tibet Plateau[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2018,29(2):86-99. |
| APA | Wu, Xiaobo,Nan, Zhuotong,Zhao, Shuping,Zhao, Lin,&Cheng, Guodong.(2018).Spatial modeling of permafrost distribution and properties on the Qinghai-Tibet Plateau.PERMAFROST AND PERIGLACIAL PROCESSES,29(2),86-99. |
| MLA | Wu, Xiaobo,et al."Spatial modeling of permafrost distribution and properties on the Qinghai-Tibet Plateau".PERMAFROST AND PERIGLACIAL PROCESSES 29.2(2018):86-99. |
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来源：寒区旱区环境与工程研究所
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