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author:

Zhou, Shuai (Zhou, Shuai.) [1] | Liu, Xin (Liu, Xin.) [2] | Sun, Yu (Sun, Yu.) [3] (Scholars:孙玉) | Chang, Xiaotao (Chang, Xiaotao.) [4] | Jia, Yongjun (Jia, Yongjun.) [5] | Guo, Jinyun (Guo, Jinyun.) [6] | Sun, Heping (Sun, Heping.) [7]

Indexed by:

EI Scopus SCIE

Abstract:

We propose a method for enhancing the accuracy of bathymetry models based on a multilayer perceptron (MLP) neural network that integrates the differences in multisource marine geodetic data (MMGD) (longitude, latitude, reference bathymetry, slope, the meridional and prime components of vertical deflection, gravity anomaly, vertical gravity gradient, and mean dynamic topography). First, we use the MMGD differences between the shipborne sounding control points within 8 ' x 8 ' grid points and shipborne sounding control points as input data, as well as the differences between the topo_24.1 model and the measured bathymetric values at the control points as output data to train the MLP model. Second, we feed the input data from the central point of a 1 ' x 1 ' grid into the MLP model to obtain predictions, and then use the topo_24.1 model to recover the predicted bathymetry at the prediction point. We focus on the Caribbean Sea, and construct a Caribbean Bathymetric Chart of the Oceans (CBCO1) model using MLP neural network. The reliability of MMGD, a CBCO2 model using MMGD, and the reliability and effectiveness of the overall method are demonstrated through comparisons with the CBCO2, GEBCO_2022, topo_24.1, DTU18 models at the checkpoints.

Keyword:

Caribbean Sea Multilayer perceptron neural network multisource marine geodetic data seafloor topography

Community:

  • [ 1 ] [Zhou, Shuai]Shandong Univ Sci & Technol, Coll Geodesy & Geomat, Qingdao 266590, Peoples R China
  • [ 2 ] [Liu, Xin]Shandong Univ Sci & Technol, Coll Geodesy & Geomat, Qingdao 266590, Peoples R China
  • [ 3 ] [Guo, Jinyun]Shandong Univ Sci & Technol, Coll Geodesy & Geomat, Qingdao 266590, Peoples R China
  • [ 4 ] [Sun, Yu]Fuzhou Univ, Key Lab Spatial Data Min & Informat Sharing, Minist Educ, Fuzhou, Peoples R China
  • [ 5 ] [Chang, Xiaotao]Minist Nat Resources, Land Satellite Remote Sensing Applicat Ctr, Beijing, Peoples R China
  • [ 6 ] [Jia, Yongjun]Minist Nat Resources, Natl Satellite Ocean Applicat Serv, Beijing, Peoples R China
  • [ 7 ] [Sun, Heping]Chinese Acad Sci, State Key Lab Geodesy & Earths Dynam Innovat Acad, Wuhan, Peoples R China

Reprint 's Address:

  • [Liu, Xin]Shandong Univ Sci & Technol, Coll Geodesy & Geomat, Qingdao 266590, Peoples R China;;

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Source :

INTERNATIONAL JOURNAL OF DIGITAL EARTH

ISSN: 1753-8947

Year: 2024

Issue: 1

Volume: 17

3 . 7 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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