A Multiresolution Grid Structure Applied to Seafloor Shape Modeling

This paper proposes a method of creating a multiresolution depth grid containing bathymetric data describing a stretch of sea floor. The included literature review presents current solutions in the area of the creation of digital terrain models (DTMs) focusing on methods employing regular grids, wit...

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Bibliographic Details
Published in:ISPRS international journal of geo-information 2018-03, Vol.7 (3), p.119
Main Authors: Maleika, Wojciech, Koziarski, Michał, Forczmański, Paweł
Format: Article
Language:English
Subjects:
Bathymetric data
data compression
Data reduction
DTM
Geographic information systems
Information systems
Literature reviews
Methods
Model accuracy
Modelling
multiresolution depth grid
Ocean floor
Organizations
sea floor
Solutions
Surveying
Terrain models
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Summary:This paper proposes a method of creating a multiresolution depth grid containing bathymetric data describing a stretch of sea floor. The included literature review presents current solutions in the area of the creation of digital terrain models (DTMs) focusing on methods employing regular grids, with a discussion on the strong and weak points of such an approach. As a basis for the investigations, some important recommendations from the International Hydrographic Organization are provided and are related to the accuracy of created models. The authors propose a novel method of storing DTM data, involving multiresolution depth grids. The paper presents the characteristics of this method, numerical algorithms of a conversion between a regular grid and the multiresolution one, and experiments on typical seafloor surfaces. The results are discussed, focusing on the data reduction rate and the variable resolution of the grid structure. The proposed method can be applied in Geographical Information Systems, especially for the purposes of solving sea survey problems.
ISSN:2220-9964
2220-9964
DOI:10.3390/ijgi7030119