On the Performance of Sentinel-3 Altimetry Over New Reservoirs: Approaches to Determine Onboard A Priori Elevation
文献类型：期刊论文
| 作者 | Zhang, Xingxing1,3,4; Jiang, Liguang1; Kittel, Cecile M. M.1; Yao, Zhijun3 ; Nielsen, Karina2; Liu, Zhaofei3; Wang, Rui3; Liu, Jun1; Andersen, Ole B.2; Bauer-Gottwein, Peter1
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| 刊名 | GEOPHYSICAL RESEARCH LETTERS
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| 出版日期 | 2020-09-16 |
| 卷号 | 47期号:17页码:11 |
| 关键词 | radar altimetry water surface elevation reservoir open-loop tracking inland water data acquisition |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2020GL088770 |
| 通讯作者 | Jiang, Liguang(ljia@env.dtu.dk) |
| 英文摘要 | Satellite radar altimetry has become an important data source supplementing in situ water level. For practical reasons, a radar altimeter can only record reflected echoes within its range window. Therefore, water surface elevation must fall within the range window. To this end, the Sentinel-3 radar altimetry mission is configured with a new tracking function (i.e., open loop) to position its range window based on an onboard a priori elevation of ground targets. We found that Sentinel-3 is unable to observe recently built reservoirs due to the incorrect onboard elevations. To overcome this issue, four approaches are proposed to improve the a priori elevation for inland water bodies, particularly reservoirs. These approaches can significantly increase data availability of Sentinel-3 over reservoirs and can be used to prepare the onboard elevations of reservoirs and lakes for future missions such as Sentinel-6, Sentinel-3C/-3D, and the Surface Water and Ocean Topography (SWOT) mission. |
| WOS关键词 | WATER-SURFACE ELEVATION ; HYDROLOGICAL MODEL ; LEVEL VARIATIONS ; RIVER ; LAKE ; VALIDATION ; STORAGE ; VOLUME ; DAM |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20060202] ; Innovation Fund Denmark (Innovationsfonden)[8087-00002B] ; Danida Fellowship Centre[18-M01-DTU] ; Chinese Scholarship Council |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000572406100010 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Innovation Fund Denmark (Innovationsfonden) ; Danida Fellowship Centre ; Chinese Scholarship Council |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156949]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Jiang, Liguang |
| 作者单位 | 1.Tech Univ Denmark, Dept Environm Engn, Lyngby, Denmark 2.Tech Univ Denmark, Natl Space Inst, DTU Space, Lyngby, Denmark 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Resources Use & Environm Remediat, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xingxing,Jiang, Liguang,Kittel, Cecile M. M.,et al. On the Performance of Sentinel-3 Altimetry Over New Reservoirs: Approaches to Determine Onboard A Priori Elevation[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(17):11. |
| APA | Zhang, Xingxing.,Jiang, Liguang.,Kittel, Cecile M. M..,Yao, Zhijun.,Nielsen, Karina.,...&Bauer-Gottwein, Peter.(2020).On the Performance of Sentinel-3 Altimetry Over New Reservoirs: Approaches to Determine Onboard A Priori Elevation.GEOPHYSICAL RESEARCH LETTERS,47(17),11. |
| MLA | Zhang, Xingxing,et al."On the Performance of Sentinel-3 Altimetry Over New Reservoirs: Approaches to Determine Onboard A Priori Elevation".GEOPHYSICAL RESEARCH LETTERS 47.17(2020):11. |
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来源：地理科学与资源研究所
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