Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095029 |
Intra-annual ground surface deformation detected by site observation, simulation and InSAR monitoring in permafrost site of Xidatan, Qinghai-Tibet Plateau | |
Shibo Liu; Lin Zhao; Lingxiao Wang; Huayun Zhou; Defu Zou; Zhe Sun; Changwei Xie1, Yongping Qiao1 | |
2022-01-28 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | The permafrost degradation can cause long-term ground surface subsidence, and the surface undergoes frost heave and thaw settlement due to the ice-water phase change in the active layer. The multi-year surveys by leveling observations and Interferometric Synthetic Aperture Radar (InSAR) monitoring are helpful to understand the characteristics of seasonal deformation and to model the permafrost terrain surface deformation. In this paper, we studied the characteristics of seasonal deformation over permafrost terrain in Xidatan, obtained by leveling measurements from 2010 to 2018, Sentinel-1 data from 2014 to 2020, and hydrothermal- data-based simulation. The results consistently showed a four-stage pattern of seasonal deformation characteristics: summer thaw subsiding, warm-season stable-standing, winter freeze heaving and stable-standing. The leveling measurements proved that spatial heterogeneity also exists on a small spatial scale (400 m2). The deformation amplitude obtained by leveling data is the largest, and the InSAR data is the smallest. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346058 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Shibo Liu,Lin Zhao,Lingxiao Wang,et al. Intra-annual ground surface deformation detected by site observation, simulation and InSAR monitoring in permafrost site of Xidatan, Qinghai-Tibet Plateau[J]. Geophysical Research Letters,2022. |
APA | Shibo Liu.,Lin Zhao.,Lingxiao Wang.,Huayun Zhou.,Defu Zou.,...&Changwei Xie1, Yongping Qiao1.(2022).Intra-annual ground surface deformation detected by site observation, simulation and InSAR monitoring in permafrost site of Xidatan, Qinghai-Tibet Plateau.Geophysical Research Letters. |
MLA | Shibo Liu,et al."Intra-annual ground surface deformation detected by site observation, simulation and InSAR monitoring in permafrost site of Xidatan, Qinghai-Tibet Plateau".Geophysical Research Letters (2022). |
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