Temperature-dependent adjustments of the permafrost thermal profiles on the Qinghai-Tibet Plateau, China (SCI)
文献类型：期刊论文
| 作者 | Xie C. W.; Gough W. A.; Zhao L.; Wu T. H.; Liu W. H. |
| 刊名 | Arctic Antarctic and Alpine Research
 |
| 出版日期 | 2015 |
| 卷号 | 47期号:4页码:719-728 |
| 英文摘要 | Using continuous data obtained from 17 monitoring sites, the permafrost temperature profiles and the depths of zero annual amplitude (DZAA) on the Qinghai-Tibet Plateau are examined. Permafrost thermal trumpet curves are generally narrow and the DZAAs are generally shallow in warm permafrost regions, especially at sites where the permafrost temperature is close to 0 degrees C. The observed DZAAs in warm permafrost regions are indeed generally less than 7.0 m and for three sites less than 4.0 m. In low-temperature permafrost areas, the situation is reversed: the thermal trumpet curves are generally wide and the DZAAs are generally deep. Theoretical and numerical analyses clearly show there is a causal relationship between permafrost warming and the decrease of the DZAA. Latent heat effects are buffering the increase of permafrost temperature and result in narrow thermal trumpet curves and shallow DZAAs. Based on observations and numerical analyses, this research suggests that most of the permafrost on the Qinghai-Tibet Plateau is undergoing internal thaw and the latent heat effects have important implications on the permafrost thermal regime. The temperature-dependent adjustments in permafrost will promote both the downward and upward degradation of permafrost as a result of climate warming. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.casnw.net/handle/362004/27634]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xie C. W.,Gough W. A.,Zhao L.,et al. Temperature-dependent adjustments of the permafrost thermal profiles on the Qinghai-Tibet Plateau, China (SCI)[J]. Arctic Antarctic and Alpine Research,2015,47(4):719-728. |
| APA | Xie C. W.,Gough W. A.,Zhao L.,Wu T. H.,&Liu W. H..(2015).Temperature-dependent adjustments of the permafrost thermal profiles on the Qinghai-Tibet Plateau, China (SCI).Arctic Antarctic and Alpine Research,47(4),719-728. |
| MLA | Xie C. W.,et al."Temperature-dependent adjustments of the permafrost thermal profiles on the Qinghai-Tibet Plateau, China (SCI)".Arctic Antarctic and Alpine Research 47.4(2015):719-728. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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