Seasonal deformation features on qinghai-tibet railway observed using time-series insar technique with high-resolution terrasar-x images
文献类型：期刊论文
| 作者 | Wang, Chao1; Zhang, Zhengjia1,2; Zhang, Hong1; Wu, Qingbai3; Zhang, Bo1; Tang, Yixian1 |
| 刊名 | Remote sensing letters
 |
| 出版日期 | 2017 |
| 卷号 | 8期号:1页码:1-10 |
| ISSN号 | 2150-704X |
| DOI | 10.1080/2150704x.2016.1225170 |
| 通讯作者 | Zhang, hong(zhanghong@radi.ac.cn) |
| 英文摘要 | Climate change and human activity are changing the dynamics of the qinghai-tibet plateau (qtp) environmental balance, which impacts the safety and stability of its infrastructure. theqinghai-tibet railway (qtr) is the longest structure in the qtp, and some sections of the qtr's embankment have been damaged due to freezing and thawing of permafrost. in this article, a modified sar interferometry (insar) method for deformation monitoring is proposed and implemented. in this method, a seasonal deformation model based on the simplified stefan equation has been adopted to measure the seasonal displacement. in particular, a linked coherence model is used to improve the effect of temporal correlation by defining a coherence parameter in the neighbouring pixel network. it was found that most of the study area had seasonal displacements of up to 20 mm. the deformation cross-section profile of the railway shows asymmetry between the two sides of the railway subgrade shoulders which may be related to sunny-shady slope effect. it was found that variable deformation along the qtr ranges from 0 to 30 mm, probably due to underlying permafrost conditions. displacements of the experimental railway subgrade segment with varying types of coolingmeasurements are different, which shows their cooling efficiency variance. |
| WOS关键词 | ACTIVE-LAYER THICKNESS ; PERMANENT SCATTERERS ; PERMAFROST ENVIRONMENTS ; SURFACE DEFORMATION ; SAR INTERFEROMETRY ; THERMAL STATE ; PLATEAU ; CHINA ; RADARSAT-2 ; CANADA |
| WOS研究方向 | Remote Sensing ; Imaging Science & Photographic Technology |
| WOS类目 | Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000386045800001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374987 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chao,Zhang, Zhengjia,Zhang, Hong,et al. Seasonal deformation features on qinghai-tibet railway observed using time-series insar technique with high-resolution terrasar-x images[J]. Remote sensing letters,2017,8(1):1-10. |
| APA | Wang, Chao,Zhang, Zhengjia,Zhang, Hong,Wu, Qingbai,Zhang, Bo,&Tang, Yixian.(2017).Seasonal deformation features on qinghai-tibet railway observed using time-series insar technique with high-resolution terrasar-x images.Remote sensing letters,8(1),1-10. |
| MLA | Wang, Chao,et al."Seasonal deformation features on qinghai-tibet railway observed using time-series insar technique with high-resolution terrasar-x images".Remote sensing letters 8.1(2017):1-10. |
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来源：中国科学院大学
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