Facts for Prelims (FFP)
Source: PIB
Context: Scientists from the Indian Institute of Geomagnetism (IIG) have conducted decade-long ionospheric observations at Bharati station in Antarctica, revealing significant seasonal variations in ionospheric density.
- Despite the region experiencing 24 hours of sunlight in summer and complete darkness in winter, day-night ionospheric density variations were observed.
- The researchers found the peak ionospheric density near local noon during the winter months, attributing it to particle precipitation and the transportation of convectional plasma from high latitudes.
- These long-term studies aim to enhance understanding of ionospheric effects on satellite-based navigation and communication systems.
The ionosphere is a layer of the Earth’s atmosphere that is made up of charged atoms, molecules, and electrons. It stretches from 50 kilometers (30 miles) to over 1,000 kilometers (600 miles) above the Earth.
