Note4Students
From UPSC perspective, the following things are important :
Prelims level: EMIC Waves
Mains level: Indian Antarctic Program
Central idea
- Scientists working at the Indian Antarctic Station, Maitri, have identified and probed Electromagnetic Ion Cyclotron (EMIC) waves to study their characteristics.
- The study aims to understand the impact of energetic particles in the radiation belts on low orbiting satellites.
About Indian Antarctic Station, Maitri
Description | |
Name | Maitri Antarctic Station (Friendship Research Centre) |
Establishment | 1984 |
Location | Schirmacher Oasis, East Antarctica |
Distance from other stations | 5 km away from Novolazarevskaya Station |
Purpose | Conducting scientific research as part of the Indian Antarctic Programme |
Features | Second permanent research station of India in Antarctica |
Named by | Then-PM Indira Gandhi |
First camp commander | Squadron Leader D.P. Joshi |
First huts | Completed in 1989 by the IV Antarctica Expedition |
What are EMIC Waves?
- Electromagnetic Ion Cyclotron (EMIC) waves are a type of plasma wave that occurs in the Earth’s magnetosphere.
- They are caused by the interaction of energetic particles in the radiation belts with the Earth’s magnetic field.
- These waves have frequencies in the range of a few hundred hertz to a few kilohertz and are known to play an important role in the acceleration and loss of energetic particles in the Earth’s magnetosphere.
- The study of EMIC waves is important for understanding the effects of space weather on satellite communication and navigation systems.
Identification and study of EMIC waves
- A team of scientists from the Indian Institute of Geomagnetism (IIG) analysed data collected between 2011 and 2017 by the Induction Coil Magnetometer.
- The device was installed at the Indian Antarctic station Maitri to bring out several aspects of the ground observation of the EMIC waves.
Significance of the study
- This study is important to improve our understanding of EMIC wave modulation and how they interact with energetic particles that impact satellites and their communication.
- It could help understand the impact of energetic particles in the radiation belts on low orbiting satellites and lead to improved satellite communication systems.
Back2Basics: Indian Antarctic Programme
- It is a scientific program run by the National Centre for Antarctic and Ocean Research under the Ministry of Earth Sciences.
- It was launched in 1981 and since then India has been operating research stations in Antarctica.
- It gained global acceptance with India’s signing of the Antarctic Treaty and subsequent construction of the Dakshin Gangotri Antarctic research base in 1983, superseded by the Maitri base from 1989.
- The program conducts research in areas such as geology, oceanography, atmospheric sciences, and earth sciences.
- India currently operates two permanent research stations in Antarctica – Maitri and Bharati.
- The program also has plans to set up a third research station called ‘Siddhanta’ in the coming years.
- Apart from conducting research, the program also engages in logistics support, environmental monitoring, and outreach activities.
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