Based on the analysis of known methods technical solutions, a two-stage method calibration receiving active phased array antenna (AFAR) long-range detection radar station (RLS) is proposed. The peculiarity this algorithm, which does not require physical modification and use expensive measuring equipment, makes it possible to determine difference in characteristics AR channels compensate for dif...

Earthquake swarms occur sporadically at divergent plate boundaries but their recurrence over multiple decades and relation to magmatic spreading activity remain poorly understood. Here we study more than 100 earthquake a 60-year period in the southern Red Sea, Afar, Gulf of Aden region. We first compiled an earthquake-swarm catalogue by integrating reexamined global local catalogues from 1960 2...