Evaluation and improvement of coastal GNSS reflectometry sea level variations from existing GNSS stations in Taiwan
文献类型：期刊论文
| 作者 | Lee, Chi-Ming1; Kuo, Chung-Yen1; Sun, Jian2; Tseng, Tzu-Pang3,4; Chen, Kwo-Hwa5; Lan, Wen-Hau1; Shum, C. K.2,6; Ali, Twig7; Ching, Kuo-En1; Chu, Philip8 |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 63期号:3页码:1280-1288 |
| 关键词 | Global navigation satellite systems (GNSS) Signal-to-noise ratio (SNR) Lomb-Scargle periodogram (LSP) Tidal harmonic analysis |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2018.10.039 |
| 英文摘要 | Global sea level rise due to an increasingly warmer climate has begun to induce hazards, adversely affecting the lives and properties of people residing in low-lying coastal regions and islands. Therefore, it is important to monitor and understand variations in coastal sea level covering offshore regions. Signal-to-noise ratio (SNR) data of Global Navigation Satellite System (GNSS) have been successfully used to robustly derive sea level heights (SLHs). In Taiwan, there are a number of continuously operating GNSS stations, not originally installed for sea level monitoring. They were established in harbors or near coastal regions for monitoring land motion. This study utilizes existing SNR data from three GNSS stations (Kaohsiung, Suao, and TaiCOAST) in Taiwan to compute SLHs with two methods, namely, Lomb-Scargle Periodogram (LSP)-only, and LSP aided with tidal harmonic analysis developed in this study. The results of both methods are compared with co-located or nearby tide gauge records. Due to the poor quality of SNR data, the worst accuracy of SLHs derived from traditional LSP-only method exceeds 1 m at the TaiCOAST station. With our procedure, the standard deviations (STDs) of difference between GNSS-derived SLHs and tide gauge records in Kaohsiung and Suao stations decreased to 10 cm and the results show excellent agreement with tide gauge derived relative sea level records, with STD of differences of 7 cm and correlation coefficient of 0.96. In addition, the absolute GNSS-R sea level trend in Kaohsiung during 2006-2011 agrees well with that derived from satellite altimetry. We conclude that the coastal GNSS stations in Taiwan have the potential of monitoring absolute coastal sea level change accurately when our proposed methodology is used. (C) 2018 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 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 106-2119-M-006-018] ; NASA's GNSS Remote Sensing Program[NNX15AU99G] ; NOAA's Cooperative Institute for Great Lakes Research/University of Michigan[3004491689] |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000457951400014 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/6642]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Kuo, Chung-Yen |
| 作者单位 | 1.Natl Cheng Kung Univ, Dept Geomat, 1 Univ Rd, Tainan 701, Taiwan 2.Ohio State Univ, Sch Earth Sci, Div Geodet Sci, Columbus, OH 43210 USA 3.Cooperat Res Ctr Spatial Informat, Level 5,204 Lygon St, Carlton, Vic 3053, Australia 4.Geosci Australia, Cnr Jerrabomberra Ave & Hindmarsh Dr, Symonston, ACT 2609, Australia 5.Natl Taipei Univ, Dept Real Estate & Built Environm, Taipei, Taiwan 6.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan, Hubei, Peoples R China 7.Amer Univ Sharjah, Geospatial Anal Ctr, Sharjah, U Arab Emirates 8.NOAA, Great Lakes Environm Res Lab, 2205 Commonwealth Blvd, Ann Arbor, MI 48105 USA |
| 推荐引用方式 GB/T 7714 | Lee, Chi-Ming,Kuo, Chung-Yen,Sun, Jian,et al. Evaluation and improvement of coastal GNSS reflectometry sea level variations from existing GNSS stations in Taiwan[J]. ADVANCES IN SPACE RESEARCH,2019,63(3):1280-1288. |
| APA | Lee, Chi-Ming.,Kuo, Chung-Yen.,Sun, Jian.,Tseng, Tzu-Pang.,Chen, Kwo-Hwa.,...&Jia, Yuanyuan.(2019).Evaluation and improvement of coastal GNSS reflectometry sea level variations from existing GNSS stations in Taiwan.ADVANCES IN SPACE RESEARCH,63(3),1280-1288. |
| MLA | Lee, Chi-Ming,et al."Evaluation and improvement of coastal GNSS reflectometry sea level variations from existing GNSS stations in Taiwan".ADVANCES IN SPACE RESEARCH 63.3(2019):1280-1288. |
入库方式： OAI收割
来源：武汉植物园
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