| Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data | |
| Liu, L (Liu, Lin)1,2; Jiang, LM (Jiang, Liming)1,2; Sun, YF (Sun, Yafei)1,2; Yi, CL (Yi, Chaolu)3; Wang, HS (Wang, Hansheng)1; Hsu, HT (Hsu, Houtse)1; Jiang, LM | |
| Source Publication | INTERNATIONAL JOURNAL OF REMOTE SENSING
 |
| 2016 | |
| Volume | 37Issue:24Pages:5687-5707 |
| DOI | 10.1080/01431161.2016.1246777 |
| Abstract | This study aims to evaluate the potential of TerraSAR-X (TSX) add-on for Digital Elevation Measurement (TanDEM-X) bi-static synthetic aperture radar (SAR) data sets for the retrieval of glacier digital elevation models (DEMs) and elevation changes over mountain regions. We exploited two pairs of TanDEM-X SAR data sets acquired in 2012 and 2016 over the Puruogangri Ice Field (PIF), which is the largest modern glacier on the Tibetan Plateau (TP). Two fine-detail and high-precision DEMs for 2012 and 2016 over the PIF were generated by differential interferometric processing, and were validated against height measurements from global positioning system (GPS) and Ice, Cloud, and land Elevation Satellite (ICESat) altimetry, yielding a vertical accuracy of 1.91 +/- 0.76 m and 1.69 +/- 0.83 m, respectively. The elevation changes were derived by differencing the bi-temporal TanDEM-X DEMs and revealed predominant glacier surface thinning on the PIF. An annual surface thinning rate of -0.317 +/- 0.027 m year(-1) was estimated in the period 2012-2016, which is much larger than the estimate of -0.049 +/- 0.200 m year(-1) for the period 2000-2012 reported in previous studies. This accelerating trend of glacier surface thinning might be attributable to the continued increase in summer temperature since the 1980s and decrease in annual precipitation between two periods of investigation. This study demonstrates that comparison of the bi-temporal TanDEM-X DEMs is an efficient method for accurate and detailed retrieval of the latest surface elevation changes of mountain glaciers. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000388599500001 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Himalayan Glaciers Mass-loss Radar Interferometry Sar Interferometry Climate-change Calibration Scenarios Balances Models Nepal |
| Cooperation Status | 国际 |
| Department | 环境 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7787 |
| Collection | 图书馆 |
| Corresponding Author | Jiang, LM |
| Affiliation | 1.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, L ,Jiang, LM ,Sun, YF ,et al. Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2016,37(24):5687-5707. |
| APA | Liu, L .,Jiang, LM .,Sun, YF .,Yi, CL .,Wang, HS .,...&Jiang, LM.(2016).Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data.INTERNATIONAL JOURNAL OF REMOTE SENSING,37(24),5687-5707. |
| MLA | Liu, L ,et al."Glacier elevation changes (2012-2016) of the Puruogangri Ice Field on the Tibetan Plateau derived from bi-temporal TanDEM-X InSAR data".INTERNATIONAL JOURNAL OF REMOTE SENSING 37.24(2016):5687-5707. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.37(24) 5687-5707 2（4476KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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