MONITORING OF GPS PWV ASSOCIATION TO THE SOLAR ENERGETIC EVENTS DURING THE INTENSE SOLAR FLARES OF OCTOBER/NOVEMBER 2003

Wayan SUPARTA

ABSTRACT: This paper monitors the influences of solar energetic events during the intense solar flares of October/November 2003 on precipitable water vapor (PWV) at Scott Base station, Antarctica for the period from 22 October to 7 November 2003. A PWV representing a climate variable to indicate the lower atmosphere has been responsive to the upper atmosphere is derived from the GPS signals and the surface meteorological data. The analysis results showed that the PWV and solar related events (EUV, proton and cosmic ray density) exhibited a strong relationship with regard a lag time of ~48 hours as preference time to observe the effects directly. PWV increased by about 0.15 mm observed during the Superstom, where EUV and solar protons increased ~24% and 16% respectively and the density of cosmic rays is decreased to 20%

Keywords: Monitoring, GPS PWV, Solar energetic events, Antarctica .

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