Timelines of cosmic ray intensity,Ap, IMF, and sunspot numbers since 1937

Sunspot cycle 23 descent to an unusual minimum and forecasts for cycle 24 activity

(2011) H.S. Ahluwalia et al.   ADVANCES IN SPACE RESEARCH

Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation

(2011) Jasper Kirkby et al.   NATURE

Galactic cosmic ray modulation for sunspot cycle 23

(2010) H.S. Ahluwalia et al.   ADVANCES IN SPACE RESEARCH

Heliospheric magnetic field 1835-2009

(2010) Leif Svalgaard et al.   JOURNAL OF GEOPHYSICAL RESEARCH

Rigidity dependence of 11 year cosmic ray modulation: Implication for theories

(2010) H. S. Ahluwalia et al.   JOURNAL OF GEOPHYSICAL RESEARCH

Two intense Forbush decreases of solar activity cycle 22

(2009) H.S. Ahluwalia et al.   ADVANCES IN SPACE RESEARCH

Long-term (50 years) measurements of cosmic ray fluxes in the atmosphere

(2009) Yu.I. Stozhkov et al.   ADVANCES IN SPACE RESEARCH

Cosmic Ray Induced Ion Production in the Atmosphere

(2008) G. A. Bazilevskaya et al.   SPACE SCIENCE REVIEWS

Mean energy of response to galactic cosmic ray spectrum: IMP 8 and Climax neutron monitor

(2007) H.S. Ahluwalia et al.   ADVANCES IN SPACE RESEARCH