URAGAN & TRAGALDABAS: two complementary approaches for the regular survey of cosmic rays

Cosmic Rays are very useful for getting a real time information of many Earth's surrounding phenomena as solar activity, magnetic cloud detection and the high atmosphere dynamics, among others. In order to improve our knowledge in those fields, two singular and very different detectors installed in Europe, URAGAN in Moscow (Russia) and TRAGALDABAS in S. de Compostela (Spain), have decided to joint their efforts. Although they are based on different technologies and have very different performances, both of them offer very good angular resolution for muons of cosmic origin allowing a regular and coordinated survey of the arrival of low energy cosmic rays over a big region of the north hemisphere.