Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095142 |
A generic method to derive coastal bathymetry from satellite photogrammetry for tsunami hazard assessment | |
Yu Zhou; Lejun Lu; Linlin Li; Qiong Zhang; Peizhen Zhang | |
2021-10-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | In this study, we use Pleiades satellite stereo imagery to map shallow-water bathymetry specifically for the purpose of assessing tsunami hazard in coastal regions. In order to calculate the refraction correction factor, we independently measure the refractive indices of seawater mixed with a variety of phytoplankton, which was previously unquantified. We find that the refractive index of seawater increases with cell density of phytoplankton, ranging from 1.3410 to 1.3425. Through rigorous error analysis, we demonstrate that the change in refraction due to heterogeneous distribution of phytoplankton is negligible, suggesting that the technique is applicable to the global ocean. Using the Penghu Islands as a case example, we show that photogrammetric bathymetry is able to reveal tsunami impacts more accurately and reasonably than the commonly-used General Bathymetric Chart of the Oceans (GEBCO) data, highlighting the importance of high-resolution and high-accuracy bathymetry for tsunami hazard assessment. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/340855 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yu Zhou,Lejun Lu,Linlin Li,et al. A generic method to derive coastal bathymetry from satellite photogrammetry for tsunami hazard assessment[J]. Geophysical Research Letters,2021. |
APA | Yu Zhou,Lejun Lu,Linlin Li,Qiong Zhang,&Peizhen Zhang.(2021).A generic method to derive coastal bathymetry from satellite photogrammetry for tsunami hazard assessment.Geophysical Research Letters. |
MLA | Yu Zhou,et al."A generic method to derive coastal bathymetry from satellite photogrammetry for tsunami hazard assessment".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论