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We use 130 years data for studying correlative effects due to solar cycle and activity phenomena on the occurrence of rainfall over India. For the period of different solar cycles, we compute the corr...
The Extreme Solar Activity during October–November 2003     Sunspots  rotation  flare  extreme activity       font style='font-size:12px;'> 2010/9/17
The positional measurements of sunspots from the Kodaikanal Observatory and Solar Geophysical data are used to study the association between occurrence of the abnormal activities of big sunspot groups...
Energetic neutral atoms (ENA's) which are produced in the heliospheric interface can be used to remotely investigate this highly interesting, but poorly known region acting as buffer against the inter...
Activity Cycle of Solar Filaments     Sun  activity  filaments  active cycle       font style='font-size:12px;'> 2009/5/12
Long-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle a...
We use 130 years data for studying correlative effects due to solar cycle and activity phenomena on the occurrence of rainfall over India. For the period of different solar cycles, we compute the corr...
The Extreme Solar Activity during October–November 2003     Sunspots  rotation  flare  extreme activity       font style='font-size:12px;'> 2009/5/7
The positional measurements of sunspots from the Kodaikanal Observatory and Solar Geophysical data are used to study the association between occurrence of the abnormal activities of big sunspot groups...
The purpose of this work is to investigate the effect of magnetic activity on ionospheric time delay at low latitude Station Bhopal (geom. lat. 23.2◦N, geom. long. 77.6◦E) using dual fre...
The long-term modulation of cosmic ray intensity (CRI) by different solar activity (SA) parameters and an inverse correlation between individual SA parameter and CRI is well known. Earlier, it has b...
SOLAR ACTIVITY INFLUENCE ON EQUIVALENT WIDTHS OF SOME PHOTOSPHERIC LINES。
observations of the MnI 539.47 nm spectral line in the solar ux made at the Astronomical Observatory in Belgrade between 1994 and 2003 have been reduced and certain line parameters, viz. the equival...
Activity Cycle of Solar Filaments     Sun  activity—filaments—active cycle.         font style='font-size:12px;'> 2010/9/16
Long-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle and ...

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