Statistical Analysis of the Mariana Trench Geomorphology Using R Programming Language

Geodesy and Cartography 45(2):57-84,2019, DOI: 10.3846/gac.2019.3785

28 Pages Posted: 12 Sep 2019

See all articles by Polina Lemenkova

Polina Lemenkova

Schmidt Institute of Physics of the Earth, Russian Academy of Sciences

Date Written: September 3, 2019

Abstract

This paper introduces an application of R programming language for geostatistical data processing with a case study of the Mariana Trench, Pacific Ocean. The formation of the Mariana Trench, the deepest among all hadal oceanic depth trenches, is caused by complex and diverse geomorphic factors affecting its development. Mariana Trench crosses four tectonic plates: Mariana, Caroline, Pacific and Philippine. The impact of the geographic location and geological factors on its geomorphology has been studied by methods of statistical analysis and data visualization using R libraries. The methodology includes following steps. Firstly, vector thematic data were processed in QGIS: tectonics, bathymetry, geomorphology and geology. Secondly, 25 cross-section profiles were drawn across the trench. The length of each profile is 1000-km. The attribute information has been derived from each profile and stored in a table containing coordinates, depths and thematic information. Finally, this table was processed by methods of the statistical analysis on R. The programming codes and graphical results are presented. The results include geospatial comparative analysis and estimated effects of the data distribution by tectonic plates: slope angle, igneous volcanic areas and depths. The innovativeness of this paper consists in a cross-disciplinary approach combining GIS, statistical analysis and R programming.

Keywords: R Programming Language, Statistical Analysis, Marine Geology, Mariana Trench, Geospatial Analysis

JEL Classification: Q50, Q51, Q54, Q57, Y92, Y1, Y10, C00, C02, C18, C21, C23, C55, C60, C61, C63, C83, C90

Suggested Citation

Lemenkova, Polina, Statistical Analysis of the Mariana Trench Geomorphology Using R Programming Language (September 3, 2019). Geodesy and Cartography 45(2):57-84,2019, DOI: 10.3846/gac.2019.3785, Available at SSRN: https://ssrn.com/abstract=3447481

Polina Lemenkova (Contact Author)

Schmidt Institute of Physics of the Earth, Russian Academy of Sciences ( email )

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