A Retrospective of Global Navigation Satellite System Ionospheric Irregularities Monitoring Networks in Brazil

The use of Global Navigation Satellite System (GNSS) for air and terrestrial navigation many applications is increasing in the last decades. However, Earth’s ionosphere causes GNSS signal delay due to total electron content (TEC) scintillation phase amplitude. This can give rise deleterious effects positioning. So, it important assess over signal. To achieve this goal, necessary have a large spatial temporal coverage data from different sounders, being receivers great importance their global availability. In work, we present retrospective monitoring networks Brazil characteristics. As RBMC network managed by IBGE provides TEC as rate index (ROTI) well correlated with ionospheric irregularities, also description. These provide regions scarcity monitors. description Ionospheric Scintillation Monitoring Receivers (ISMR) Query Tool, that web software has been supporting research on ISMR data, presented.