6533b825fe1ef96bd1281cff

RESEARCH PRODUCT

Non-tidal loading of the Baltic Sea in Latvian GNSS time series

Diana Haritonova

subject

Series (stratigraphy)010504 meteorology & atmospheric sciencesLatvian010502 geochemistry & geophysics01 natural scienceslanguage.human_languageOceanographyBaltic seaGNSS applicationsModeling and SimulationEarth and Planetary Sciences (miscellaneous)languageEngineering (miscellaneous)Geology0105 earth and related environmental sciences

description

Abstract The objective of this study is to investigate the effect of the Baltic Sea non-tidal loading in the territory of Latvia using observations of the GNSS continuously operating reference stations (CORS) of LatPos, EUPOS®-Riga, EPN and EstPos networks. The GNSS station daily coordinate time series obtained in a double-difference (DD) mode were used. For representation of the sea level dynamics, the Latvian tide gauge records were used. Performed correlation analysis is based on yearly data sets of these observations for the period from 2012 up to 2020. The approach discloses how the non-tidal loading can induce variations in the time series of the regional GNSS station network. This paper increases understanding of the Earth’s surface displacements occurring due to the non-tidal loading effect in Latvia, and is intended to raise the importance and necessity of improved Latvian GNSS time series by removing loading effects.

https://doi.org/10.1515/jag-2021-0024