Year 2020, Volume 4 , Issue 1, Pages 1 - 18 2020-06-30

Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China

Polina LEMENKOVA [1]


The study is geographically focused on the Manila Trench, located in the west Pacific Ocean, South China Sea, west Philippines. The research aims at the geological mapping, analysis and visualizing variations in the submarine geomorphology of the Manila Trench. Technically, the work was done using Generic Mapping Tools scripting toolset (GMT). A combination of various GMT modules was applied for geospatial modelling. Methodology includes cartographic data integration and interpretation through approaches of data analysis: topographic plotting, geophysical modelling, geological mapping and statistical analysis. The data included SRTM, ETOPO1, geoid and gravity grids (CryoSat-2, Jason-1). Two sets of the cross-section profiles of the trench were automatically digitized. The profile transects were compared and differences in the geomorphic shape in southern and northern parts revealed. Southern part has steeper slope on the western part. Northern part is steeper on the continental slope part. The submarine terraces are located on the northern segment at depths -2,000 m. The depth and geomorphology of the slope vary for the range -3,500 to -4,500 m: minimals for the northern part with 526 samples (18.2%) for the depths -4,000 to -4,200 m. The histogram for the northern part has bimodal distribution with two peaks. The southern part shows 142 values for the minimals -3,500 to -3400 m. The statistical analyses revealed that northern part of the trench is deeper. The GMT functionality shown in this paper enabled integration and interpretation of the multi-source data: automatically digitized profiles, geological mapping, 2D and 3D bathymetric modelling, statistical analysis, mathematical approximation of the trend modelling. The GMT proved to be capable of visualizing geodata that can significantly improve Earth studies and interpretation of submarine geomorphology of the oceanic trenches through the advanced data analysis.

Mapping, Cartography, GMT, Manila Trench, Pacific Ocean, South China Sea
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Primary Language en
Subjects Engineering
Published Date June 2020
Journal Section Research Article
Authors

Orcid: 0000-0002-5759-1089
Author: Polina LEMENKOVA (Primary Author)
Institution: Ocean University of China
Country: China


Supporting Institution China Scholarship Council (CSC)
Project Number 2016SOA002
Thanks This research was funded by the China Scholarship Council (CSC), State Oceanic Administration (SOA), Marine Scholarship of China, Grant Nr. 2016SOA002, Beijing, People’s Republic of China.
Dates

Application Date : August 9, 2019
Acceptance Date : February 28, 2020
Publication Date : June 30, 2020

Bibtex @research article { asujse604761, journal = {Aksaray University Journal of Science and Engineering}, issn = {}, eissn = {2587-1277}, address = {Aksaray Üniversitesi, Fen Bilimleri Enstitüsü, Merkez Kampüs, 68100 Aksaray}, publisher = {Aksaray University}, year = {2020}, volume = {4}, pages = {1 - 18}, doi = {10.29002/asujse.604761}, title = {Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China}, key = {cite}, author = {Lemenkova, Polina} }
APA Lemenkova, P . (2020). Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China . Aksaray University Journal of Science and Engineering , 4 (1) , 1-18 . DOI: 10.29002/asujse.604761
MLA Lemenkova, P . "Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China" . Aksaray University Journal of Science and Engineering 4 (2020 ): 1-18 <http://asujse.aksaray.edu.tr/en/pub/issue/51080/604761>
Chicago Lemenkova, P . "Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China". Aksaray University Journal of Science and Engineering 4 (2020 ): 1-18
RIS TY - JOUR T1 - Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China AU - Polina Lemenkova Y1 - 2020 PY - 2020 N1 - doi: 10.29002/asujse.604761 DO - 10.29002/asujse.604761 T2 - Aksaray University Journal of Science and Engineering JF - Journal JO - JOR SP - 1 EP - 18 VL - 4 IS - 1 SN - -2587-1277 M3 - doi: 10.29002/asujse.604761 UR - https://doi.org/10.29002/asujse.604761 Y2 - 2020 ER -
EndNote %0 Aksaray University Journal of Science and Engineering Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China %A Polina Lemenkova %T Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China %D 2020 %J Aksaray University Journal of Science and Engineering %P -2587-1277 %V 4 %N 1 %R doi: 10.29002/asujse.604761 %U 10.29002/asujse.604761
ISNAD Lemenkova, Polina . "Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China". Aksaray University Journal of Science and Engineering 4 / 1 (June 2020): 1-18 . https://doi.org/10.29002/asujse.604761
AMA Lemenkova P . Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China. Aksaray J. Sci. Eng.. 2020; 4(1): 1-18.
Vancouver Lemenkova P . Cartographic Interpretation of the Seafloor Geomorphology Using GMT: a Case Study of the Manila Trench, South China. Aksaray University Journal of Science and Engineering. 2020; 4(1): 1-18.