Assessment of Cryosat-2 and SARAL/AltiKa altimetry for measuring inland water and coastal sea level variations: A case study on Tibetan Plateau lake and Taiwan Coast
文献类型：期刊论文
| 作者 | Kao, Huan-Chin3; Kuo, Chung-Yen3; Tseng, Kuo-Hsin4; Shum, C. K.1,5; Tseng, Tzu-Pang2; Jia, Yuan-Yuan5; Yang, Ting-Yi5; Ali, Tang A.6; Yi, Yuchan5; Hussain, Dostdar3 |
| 刊名 | MARINE GEODESY
 |
| 出版日期 | 2019-07-04 |
| 卷号 | 42期号:4页码:327-343 |
| 关键词 | Satellite altimetry SARAL AltiKa CryoSat-2 inland water |
| ISSN号 | 0149-0419 |
| DOI | 10.1080/01490419.2019.1623352 |
| 英文摘要 | Satellite altimetry has been proven as an effective technology to accurately measure water level, ice elevation, and flat land surface changes since the 1990s. To overcome limitations of pulse-limited altimetry, new altimetric missions such as Cryosat-2 and Satellite with ARgos and AltiKa (SARAL/AltiKa), have been designed to have higher along-track spatial resolution to measure more accurately inland water levels for small water bodies, and coastal sea level changes. In this study, we evaluate the performance of Cryosat-2 low-resolution (LRM) and SARin modes and SARAL/AltiKa Ka-band data on two connected lakes in central Tibetan Plateau, and in the coastal region of Taiwan. Results are compared with in situ tide gauge data in Taiwan and altimetric lake level time series from the CNES Hydroweb database. Our results show that water level change trends observed by Cryosat-2 20-Hz retracked observations, the SARAL/AltiKa 40-Hz Ice-1 retracked data, and the Hydroweb measurements are consistent with the estimated water level trend of similar to 0.30m/y, during 2011-2017, and 2013-2015, for the Tibetan Migriggyangzham Co and Dorsoidong Co, respectively. For the coastal region, the performance of SARAL/AltiKa is better than that of Cryosat-2 LRM data in Taiwan. This finding demonstrates the superiority of the Ka-band over Ku-band radar altimetry. |
| 资助项目 | Ministry of Science and Technology of Taiwan[MOST 104-2221-E-006-048-MY3] ; Ministry of Science and Technology of Taiwan[MOST 107-2221-E-006-124-MY3] |
| WOS研究方向 | Geochemistry & Geophysics ; Oceanography ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000476839400001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/7895]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Kuo, Chung-Yen |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan, Hubei, Peoples R China 2.Geosci Australia, Symonston, ACT, Australia 3.Natl Cheng Kung Univ, Dept Geomat, 1 Univ Rd, Tainan 70101, Taiwan 4.Natl Cent Univ, Ctr Space & Remote Sensing Res, Taoyuan, Taiwan 5.Ohio State Univ, Div Geodet Sci, Sch Earth Sci, Columbus, OH 43210 USA 6.Amer Univ Sharjah, Dept Civil Engn, Sharjah, U Arab Emirates |
| 推荐引用方式 GB/T 7714 | Kao, Huan-Chin,Kuo, Chung-Yen,Tseng, Kuo-Hsin,et al. Assessment of Cryosat-2 and SARAL/AltiKa altimetry for measuring inland water and coastal sea level variations: A case study on Tibetan Plateau lake and Taiwan Coast[J]. MARINE GEODESY,2019,42(4):327-343. |
| APA | Kao, Huan-Chin.,Kuo, Chung-Yen.,Tseng, Kuo-Hsin.,Shum, C. K..,Tseng, Tzu-Pang.,...&Hussain, Dostdar.(2019).Assessment of Cryosat-2 and SARAL/AltiKa altimetry for measuring inland water and coastal sea level variations: A case study on Tibetan Plateau lake and Taiwan Coast.MARINE GEODESY,42(4),327-343. |
| MLA | Kao, Huan-Chin,et al."Assessment of Cryosat-2 and SARAL/AltiKa altimetry for measuring inland water and coastal sea level variations: A case study on Tibetan Plateau lake and Taiwan Coast".MARINE GEODESY 42.4(2019):327-343. |
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来源：武汉植物园
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