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Bal, Sourabh
- A Climatological Study Between Solar Activity and Extreme Events Around the Globe
Abstract Views :254 |
PDF Views:3
Authors
Sourabh Bal
1,
M. Bose
1
Affiliations
1 Meteorology Department, Freie University, Berlin, DE
1 Meteorology Department, Freie University, Berlin, DE
Source
Indian Science Cruiser, Vol 24, No 2 (2010), Pagination: 38-47Abstract
Variations of sunspot numbers in connection with extreme events like flood, storm, drought, seismic activity, volcanic activity, extreme temperature and sum of all events, defined as total event is studied. We have used Fourier analysis to investigate whether any periodic relation exists between Sun and extreme events. Correlation analysis is also employed to find if there is any relation between solar activity and extreme events exists. Finally, we present the comparison of extreme events with solar activity around sunspot maximum. Our study reveals that the maximum occurrence of drought is observed in the growth phase of solar activity whereas the maximum occurrence of other events coincide either with the sunspot maximum or in the declining stage of solar activity. Besides this we find that the seismic activity relates well with solar activity and the occurrence of maximum number of earthquakes shifted slightly from the time of Sunspot maximum.Keywords
Earthquake, Extreme Events. Sunspot, Earth.- Solar Activity and Precipitation in India: Possible Connection
Abstract Views :152 |
PDF Views:2
Authors
Sourabh Bal
1,
M. Bose
1
Affiliations
1 Department of Physics, Jadvapur University, Jadavpur, Kolkata, IN
1 Department of Physics, Jadvapur University, Jadavpur, Kolkata, IN
Source
Indian Science Cruiser, Vol 23, No 1 (2009), Pagination: 44-50Abstract
To realize the effect of a continuous and natural energy source into our country's most needed phenomenon for the agricultural purpose have been studied. 100 years' data (1901-2000), were used for studying effects due to solar activity, temperature and cloud cover on the occurrence of precipitation over India. We examine the correlation coefficients for the seasonal months of March-May (MAM), Jvme-August (JJA), Septemeber- November (SON), December-February (DJF) and annual mean data. Our findings shows that solar activity shows positive (low to moderate) correlations to annual, MAM, JJA precipitation and negative correlation during SON, DJF seasonal months. Wavelet analysis is also employed to study the effect of solar activity on precipitation.Keywords
Sun: Activity: India, Precipitation, Earth.- Global Ozone Response to Solar Activity
Abstract Views :150 |
PDF Views:2
Authors
Sourabh Bal
1,
M. Bose
1
Affiliations
1 Department of Physics, Jadavpur University, Kolkata 700032, IN
1 Department of Physics, Jadavpur University, Kolkata 700032, IN