Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52695#.VKDGAcCAM4 Author(s)      Balveer S. Rathore * , Dinesh C. Gupta , K. K. Parashar Affiliation(s) School of Study in Physics, Jiwaji University, Gwalior, India . ABSTRACT In the present paper dependence of geomagnetic activity on the solar-wind plasma and interplanetary magnetic field (IMF) parameters has been studied. We have taken interplanetary solar wind data at the instant of Dst minimum. Our study consists of 200 geomagnetic storms weighed by disturbance storm time (Dst) < -50 nT, observed during solar cycle 23. The study suggests that the strength of the geomagnetic storm is strongly dependent on th...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=48780#.VDdNC1fHRK0 Author(s)     Juha Kallunki , Minttu Uunila Affiliation(s) Metsahovi Radio Observatory, Aalto University, Kylmala, Finland . Metsahovi Radio Observatory, Aalto University, Kylmala, Finland . ABSTRACT In this paper we present an overview of solar radio observations at 11.2 GHz on Mets?hovi Radio Observatory (MRO). The data were observed during the solar cycles 23 and 24 (2001-2013) both in solar maxima and minimum. In total, 180 solar radio bursts, with varying intensities and properties, were observed. We compare our data series with other similar data sets. A good correlation can be found between the data series. It is concluded that...