Solar Cycle 25 intensifies interferences in GNSS signals and demands new strategies in precision agriculture

Solar Cycle 25, which occurs in cycles of approximately 11 years, has entered its phase of greatest intensity and already presents activity above what was initially predicted. The cycle officially began in December 2019 and, according to data from monitoring centers such as the SWPC (Space Weather Prediction Center) of NOAA, it registers a higher frequency of solar spots and coronal mass ejections. This increase in activity raises the probability of interference in satellite signals used in precision agriculture, directly impacting operations in the field. The disturbances caused by solar activity in GNSS signals, known as ionospheric scintillation, are more intense in regions near the magnetic equator. Due to its geographical location, Brazil is among the most affected areas on the planet. This phenomenon causes distortions in the positioning signals used by agricultural machinery, such as planters, sprayers, and harvesters. The impact has led global technology manufacturers to ...