B. Hariharan

Transient weakening of geomagnetic shield probed by GRAPES-3 experiment

The large area (560 m

Diffusion of cosmic rays in heliosphere, observations from GRAPES-3

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Extending the range of particle densities observed by GRAPES-3

) GRAPES-3 tracking muon telescope in Ooty, India recorded a 2 hour (h) muon burst on 22 June 2015 starting at 19:00 UT in the midst of a continuing Forbush decrease. The burst occurred following the arrival of a coronal mass ejection containing a 40 nT south-ward interplanetary magnetic field (IMF) that had triggered a G4 class geomagnetic storm. During the 2 hour, the muon telescope recorded an excess of

Long-term correction of GRAPES-3 muon telescope efficiency

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Measuring the hourly gain of the scintillator detectors from EAS data

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Precision measurement of arrival times in an EAS by GRAPES-3 experiment

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Transient Weakening of Earth’s Magnetic Shield Probed by a Cosmic Ray Burst

muons with a significance of 54

Fast Fourier transform to measure pressure coefficient of muons in the GRAPES-3 experiment

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Solar diurnal anisotropy measured using muons in GRAPES-3 experiment in 2006

. Simultaneous occurrence of the burst was observed in 9 directions covering 2.3 sr field of view suggesting its origin close to Earth.Trajectory computation of cosmic ray primary protons followed by atmospheric simulation by superimposing the 2 hour IMF variation on geomagnetic field (GMF) could reproduce the observed profiles with a high degree of correlation (0.89

Dependence of the muon intensity on the atmospheric temperature measured by the GRAPES-3 experiment

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