Analysis of recent Antarctic plate kinematics based on GNSS data

The research aims to study recent Antarctic plate kinematics based on Global Navigation Satellite System (GNSS) data. The research covers 60 continuous GNSS stations located on the Antarctic plate during 1994–2021. We determine the components of horizontal displacement vectors of these GNSS stations...

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Bibliographic Details
Published in:Geodesy and Geodynamics
Main Authors: Ihor Savchyn, Ivan Brusak, Korneliy Tretyak
Format: Article in Journal/Newspaper
Language:English
Published: KeAi Communications Co., Ltd. 2023
Subjects:
Continuous GNSS station
Horizontal velocity
Strain rates
Rotation pole
The Antarctic plate
Geodesy
QB275-343
Geophysics. Cosmic physics
QC801-809
Antarctic
The Antarctic
East Antarctica
West Antarctica
Transantarctic Mountains
Antarc*
Antarctica
Online Access:https://doi.org/10.1016/j.geog.2022.08.004
https://doaj.org/article/a6c9a30d9aa1439ab32f0d4dfaa480ee
Description
Summary:The research aims to study recent Antarctic plate kinematics based on Global Navigation Satellite System (GNSS) data. The research covers 60 continuous GNSS stations located on the Antarctic plate during 1994–2021. We determine the components of horizontal displacement vectors of these GNSS stations and construct the schematic map of their distribution. The results indicate that the direction of velocity vectors of horizontal displacements has a rotational nature in clockwise order. The analysis of deformation processes shows that a gradual decrease in the horizontal strain rates, maximum shear strain and area strain is taking place from west to east, in the direction of West Antarctica – the Transantarctic Mountains – East Antarctica. The absolute rotation pole of the Antarctic plate in the ITRF2014/IGS14 reference frame has been determined, and the obtained values are in good agreement with recent plate models.

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