Solar-Diurnal Anisotropy of Cosmic Rays Over 71 Years of Observations

Daily vectors of the solar-diurnal anisotropy of cosmic rays are obtained from the Climax neutron monitor (NM CLMX) data for 1953–2006. These results are compared with similar anisotropy vectors obtained from the data of the Moscow station (NM MOSC) for 1966–2006 and the data of the world network of neutron monitors for 1957–2006 processed by the global survey method. It is shown that during quiet periods there is a good agreement between the values of the amplitude and phase of the solar-diurnal anisotropy calculated by different methods. A fairly homogeneous and reliable series of the annual-mean vectors of the solar-diurnal anisotropy of cosmic rays (with a rigidity of 10 GV) during quiet periods is generated.