Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery
文献类型：期刊论文
| 作者 | Yan, Shiyong1; Liu, Guang1; Wang, Yunjia1; Ruan, Zhixing1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2015 |
| 卷号 | 7期号:8页码:2382-2393 |
| 通讯作者 | Liu, G (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China. |
| 英文摘要 | We obtained accurate, detailed motion distribution of glaciers in Central Asia by applying digital elevation model (DEM) assisted pixel-tracking method to L-band synthetic aperture radar imagery. The paper firstly introduces and analyzes each component of the offset field briefly, and then describes the method used to efficiently and precisely compensate the topography-related offset caused by the large spatial baseline and rugged terrain with the help of DEM. The results indicate that the rugged topography not only forms the complex shapes of glaciers, but also affects the glacier velocity estimation, especially with large spatial baseline. The maximum velocity, 0.85 m center dot d(-1), was observed in the middle part on the Fedchenko Glacier, which is the world's longest mountain glacier. The motion fluctuation on its main trunk is apparently influenced by mass flowing in from tributaries, as well as angles between tributaries and the main stream. The approach presented in this paper was proved to be highly appropriate for monitoring glacier motion and will provide valuable sensitive indicators of current and future climate change for environmental analysis. |
| 研究领域[WOS] | Remote Sensing |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360818800064 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38401]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Yan, Shiyong 2.Wang, Yunjia] China Univ Min & Technol, Sch Environm Sci & Spatial Informat, Jiangsu Key Lab Resources & Environm Engn, Xuzhou 221116, Peoples R China 3.[Liu, Guang 4.Ruan, Zhixing] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Shiyong,Liu, Guang,Wang, Yunjia,et al. Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery[J]. REMOTE SENSING,2015,7(8):2382-2393. |
| APA | Yan, Shiyong,Liu, Guang,Wang, Yunjia,&Ruan, Zhixing.(2015).Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery.REMOTE SENSING,7(8),2382-2393. |
| MLA | Yan, Shiyong,et al."Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery".REMOTE SENSING 7.8(2015):2382-2393. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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