几款全球海底地形模型比较分析

近几十年,随着卫星测高技术和相关数据精密处理技术发展,依托卫星测高技术业已成为快速获取全球海底地形数据的可靠手段,国内外相关组织机构已发布了一系列全球海底地形模型。整理评述了多款全球海底地形的基本情况,以及相互间的内在联系,包括DBDB系列模型、ETOPO系列模型、Sandwell系列模型、GEBCO系列模型、SRTM+系列模型、EARTH地形球谐系数模型、BAT_VGG模型、BAT_WHU2020模型、STO_IEU2020模型等。通过对全球海底地形模型的认识和梳理,以期为下一步全球海底地形模型高效、低成本构建提供方法参考。

Comparing and analyzing several global seafloor topography models

With the development of satellite altimetry technology and data processing technology,satellite altimetry technology has become a reliable means to quickly obtain global seafloor topography in recent decades.Relevant organizations at home and abroad have released a series of global seafloor topography models.We reviewed the basic situation of several global seafloor topography models and their internal relations,including DBDB models,ETOPO models,Sandwell models,GEBCO models,SRTM+ models,EARTH models and BAT_VGG model,BAT_WHU2020 model,STO_IEU2020 model,etc.Through the understanding of the global seafloor topography models,it is expected to provide a method reference for the efficient and low-cost construction of the global seafloor topography model model in the next step.