Sediment thickness in the Bay of Bengal and Andaman Sea compared with topography and geophysical settings by GMT

Ovidius University Annals Series: Civil Engineering, 22, 13-22. DOI: 10.2478/ouacsce-2020-0002

10 Pages Posted: 18 Feb 2021

See all articles by Polina Lemenkova

Polina Lemenkova

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

Date Written: January 12, 2021

Abstract

The study presents an analysis of the sediment thickness compared with bathymetric and geophysical settings in the Bay of Bengal and Andaman Sea, Indian Ocean. It uses a combination of the high-resolution data: topographic GEBCO, satellite and marine gravity anomalies, EGM2008 geoid and GlobSed to visualize the correlation between relief, gravity and trends in continent-ocean sediment transport. The results include thematic maps and 3D model showing increased sediment thickness in the Bengal Fan (8,0 to 8,2 km) in NE direction with maximum in Ganges Fan (16,2 km), and southward decrease in the Andaman Sea from Irrawaddy river mouth (6-7 km) to the Strait of Malacca (1-2 km). All maps and 3D model have been plotted by Generic Mapping Tools (GMT) cartographic scripting toolset version 6.0.0.

Keywords: Andaman Sea, Bay of Bengal, cartography, sediment thickness

JEL Classification: Y92, Q00, Q01, Q24, Q25, Q33, Q34, Q35, C00, C02, C18, C19, C51, C52, C65, C67,

Suggested Citation

Lemenkova, Polina, Sediment thickness in the Bay of Bengal and Andaman Sea compared with topography and geophysical settings by GMT (January 12, 2021). Ovidius University Annals Series: Civil Engineering, 22, 13-22. DOI: 10.2478/ouacsce-2020-0002, Available at SSRN: https://ssrn.com/abstract=3765009

Polina Lemenkova (Contact Author)

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

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