海洋预报2025，Vol.42Issue(1)：38-47,10.DOI:10.11737/j.issn.1003-0239.2025.01.005
基于海洋观测与再分析数据的海底地形估算
Inferring the ocean topography based on oceanic observation and reanalysis data
摘要
Abstract
Accurately estimating the global seafloor topography is an important issue and a classic challenge in marine science.To tackle this problem,this study proposes a new approach for estimating the seafloor topography based on fundamental theories of ocean dynamics.Given sea surface height and ocean bottom pressure,the hydrostatic equilibrium relationship is utilized to effectively provide high-precision estimation of the seafloor topography.This paper validates the above approach at individual observation sites using satellite observations of sea surface height and records from bottom pressure recorders,and also in the global ocean using sea surface height and ocean bottom pressure from reanalysis datasets.The results show that the estimated seafloor topography errors are significantly smaller than those from traditional methods such as satellite altimetry and digital elevation models,indicating the high reliability of the proposed approach.关键词
海面高度/海底压强/海底地形/海底深度Key words
sea surface height/ocean bottom pressure/ocean topography/depth分类
海洋学引用本文复制引用
杨诚诚,王传印,王久珂,杨清华..基于海洋观测与再分析数据的海底地形估算[J].海洋预报,2025,42(1):38-47,10.基金项目
南方海洋科学与工程广东省实验室(珠海)资助项目(SML2022SP401、SML2021SP201、SML2023SP217) （珠海）
广东省自然资源厅广东省海洋经济发展(海洋六大产业)专项资金项目(粤自然资合[2022]18号) （海洋六大产业）
中山大学中央高校基本科研业务费专项资金(23xkjc019). （23xkjc019）
