Open AccessSome statistics of Ionospheric total electron content variations at mid-latitude zones of Mongolia
Author(s) -
Baatarkhuu Dagva,
Sharav Amarjargal,
Lkhagvajav Chultemiin
Publication year - 2021
Publication title -
šinžlèh uhaany akademijn mèdèè/proceedings of the mongolian academy of sciences
Language(s) - English
Resource type - Journals
eISSN - 2312-2994
pISSN - 2310-4716
DOI - 10.5564/pmas.v61i02.1737
Subject(s) - tec , total electron content , geomagnetic storm , earth's magnetic field , space weather , ionosphere , anomaly (physics) , solar cycle 24 , environmental science , gnss applications , atmospheric sciences , geodesy , latitude , solar cycle , geology , satellite , meteorology , geography , physics , geophysics , solar wind , astronomy , condensed matter physics , quantum mechanics , magnetic field
This work is focused on the correlation of ionosphere total electron content (TEC) with solar and geomagnetic activities of the space weather at mid-latitude zone. In our analysis, we investigate the TEC time series obtained from dual-frequency GNSS (Global Navigation Satellite System) observations at three continuous GPS/GNSS stations HOVD (48.00N, 91.66E), CHOB (48.08N, 114.53E) and DALN (43.56N, 104.42) for 2013. The statistical analyses are performed on 15 minute averaged yearly TEC values, which reveal the semi-annual anomaly and high correlation with the activities of the Sun and the rotation of the Earth. Phase overlapping seasonal variations of TEC and Sunspot, and Solar flux (10.7) indices, and Earth rotations (LOD) and Atmospheric angular moment (AAM) are observed in our data analyses. Sudden ionospheric storm changes in TEC with geomagnetic storm induced by the extreme solar flare and 2013 events were investigated. The result shows that GPS derived TEC behaves as an indicator of these events showing sudden increase in TEC during the event.