Sensing of the ionosphere dynamics over the Indonesian region using GNSS observations
Bramanto B.a, Rudin O.a, Wijaya D.D.a
a Geodesy Research Group, Institute of Technology Bandung, Indonesia
Abstract
GNSS can accurately observe total electron content (TEC) which is one of the important ionospheric parameters. By continuously observing such parameter, ones could be able to investigate the ionosphere dynamics. This research investigates spatio-temporal variations in Vertical-TEC (VTEC) observed by receivers at two IGS stations: NTUS (103.67990(lon) 1.3458 0(lat) 79.0000(height)) and BAKO (106.85000(lon) -6.49000(lat) 158.1800(height)). Correlation of VTEC with solar activity is also be investigated. VTEC value varies from a minimum of dawn (05:00 LT) to a maximum of evening (15:00 LT). Correlation with the sunspot number showed a positive correlation. The results also indicate that there are several scintillation phenomena. In general, the ionosphere activity is increasing during the period of 2008 – 2012.
Author keywords
GNSS,Ionospheric parameters,Positive correlations,Solar activity,Spatio-temporal variation,Sunspot number,TEC,Total electron content
Indexed keywords
GNSS,Ionosphere,Sunspot number,TEC