Monitoring of continuous GNSS stations at Central Anatolia region

Year 2021, Volume: 2 Issue: 2, 21 - 29, 15.12.2021

Abdulmalek Redhwan , Hediye Erdoğan , Osman Oktar , Cemil Gezgin

https://doi.org/10.48053/turkgeo.996719

Cited By: 1

Abstract

In this study, the linear behaviors in the North, East and Up directions of 30 CORS-TR stations in the Central Anatolian Region were obtained by the trend component analysis which is the time series component. The time series of the stations between 2017-2020 years were calculated in the Eurasia-fixed frame with the GAMIT/GLOBK software. As a result of the analysis, the average horizontal velocity of the stations in the east of the Central Anatolian Region is 17.59 mm/year in the northwest direction, and the average horizontal velocity of the stations in the west is 18.66 mm/year in the southwest direction. This movement shows the movement of the Anatolian plate in the southwest direction in terms of direction and velocity and is in agreement with other research results. In the linear changes in the up coordinates of the stations, the greatest linear change was detected at the KNY1 (-48.22 mm/year) station. It is thought that this change at station KNY1 is due to the decrease in groundwater level in this region (Konya Closed Basin). In addition, in the standard deviation (m0) values of the time series that obtained as a result of the analysis, linear changes were approximately the same for the north and east directions, and about 2-3 times larger for the up values compared to the north or east directions.

Keywords

Trend Component Analysis., Central Anatolia Region, GNSS, ITRF, Time Series Analysis

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