Solar Storms Current Affairs - 2020
The Indian Institute of Geomagnetism researchers have developed a model that will predict electronic density of ionosphere. This is highly important for the communication and navigation on the earth.
The researchers developed an Artificial Neural Networks based Global Ionospheric Model (ANNIM) to predict ionospheric electron density. The model was developed by using data collected for more than 20 years.
Artificial Neural Network
The ANNs mimic the process of human brain. They help in clustering, recognition, generalization, classification and non linear data fitting. It captures morphological features of ionosphere. This is highly helpful to study changes in the ionosphere due to disturbed weather periods that has been on the rise lately. It also helps to learn about geomagnetic storms that occur due to the magnetic clouds that originate from the sun.
The Magnetic storms are rapid change in huge magnetic fields. They can last from hours to days. A magnetic storm on the earth’s magnetosphere is caused by solar winds.
Tags: Communication • ionoshere • Magnetic Field • Magnetosphere • Navigation
On March 30, 2020, NASA announced Sun Radio Interferometer Space Experiment (SUNRISE) mission. The mission is to study about how sun creates Giant Solar Particle Storms.
Studying the solar storms, the mission aims to understand the working of the solar system. The study will also aid future astronauts travelling to Mars and protect them from solar storms.
About the Mission
The mission is to deploy six CubeSats in Geosynchronous-orbit. The mission has come true because of the success of DARPA High-Frequency Research and Mars Cube One (MARCO).
Tasks assigned to SUNRISE
The Cubesats will use radio telescope to capture radio images of low-frequency emission that are emitted from the sun. These will be sent to the earth through Deep Space Network. Also, the Cubesats will create a 3D mapping to learn about location of giant particle that are originated from the sun.
The mission is to study sun’s spectrum. This is important as sun’s spectrum cannot be studied from the earth due to the ionosphere.