Simulation of decadal alpine permafrost distributions in the Qilian Mountains over past 50 years by using Logistic Regression Model
文献类型：SCI/SSCI论文
| 作者 | Chen J. |
| 发表日期 | 2012 |
| 关键词 | Alpine permafrost simulation Logistic regression model Qilian Mountains Topographic factors Meteorological factors bts measurements southern norway energy-balance tibet plateau china qinghai switzerland degradation canada alps |
| 英文摘要 | Based on a bench-mark distribution map of alpine permafrost, topographic factors and meteorological factors in every decade, the decadal distributions of alpine permafrost from 1960 to 2009 in the Qilian Mountains were simulated by using Logistic Regression Model (LM), and the overall accuracy of the simulation results was estimated to above 80%. Moreover, the changing conditions of alpine permafrost in the Qilian Mountains during each adjoining two decades, as well as over the past 50 years, had also been analyzed. The research results show: (1) LM simulation in this research not only decreases the dependency on the field survey data, but achieves dynamic simulation of alpine permafrost distribution; (2) the simulated areas of alpine permafrost in 1960s, 1970s, 1980s, 1990s and 2000s are 10.7 x 10(4) km(2), 9.8 x 10(4) km(2), 10.0 x 10(4) km(2), 8.5 x 10(4) km(2) and 8.7 x 10(4) km(2) respectively. Hence, the distribution of alpine permafrost presents an overall degraded tendency with two slight fluctuations. (C) 2011 Elsevier B.V. All rights reserved. |
| 出处 | Cold Regions Science and Technology |
| 卷 | 73 |
| 页 | 32-40 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0165-232X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/26681]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Chen J.. Simulation of decadal alpine permafrost distributions in the Qilian Mountains over past 50 years by using Logistic Regression Model. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。