Space Weather and Solar Storm
I have always wondered about weather forecast and space weather having read numerous articles online regarding satellites geostationary orbits, remote sensing and navigation.
Solar Storm |
The telecommunication satellites in space needs to be protected from such storms to increase the longevity of instruments. As an example of what hazard can solar storm cause, it may be recalled that India's "Chandrayan Mission", a spaceship that was sent to monitor details about lunar surface, was affected due to radiations from space storms.
India's ISRO has also an elaborate futuristic plan to launch "Aditya-L1", a spacecraft to study the sun and its solar radiations, similar to NASA and ESA. Another field which is closely related to weather space space science has also attracted me. This is geomagnetic storm. Being an electrical engineer and electromagnetic theory being one of my favorite subject, I got myself involved in acquiring knowledge about Earth's magnetic sphere and its disturbances.
A geomagnetic storm is one of the disturbances within the earth's magnetosphere. Geomagnetic storm is a temporary disturbance caused by solar wind shock that interacts with earth's magnetic field. The magnetosphere gets compressed by increased pressure of the solar wind and thereby transfer the excess energy into the earth's magnetic field. The resultant effect is increase in the plasma movement through magnetosphere and ionosphere.
During such a storm the boundary between magnetosphere and solar wind is pushed out by the excess electric current that is generated. As to why such a phenomena occurs it is hypothesized that the solar coronal mass is ejected at a high speed due to magnetic disturbance in the earth's surface. It has been observed that Geomagnetic storms are dependent on "Sun's spot cycle".
Magnetic Storm |
Solar flares depending upon their intensity can cause radiation poisoning to mammals(including humans) similar to radiation from dangerous nuclear blasts.Astronauts can be potentially in danger from lethal losses of radiation unless they are adequately protected.
Since there are many rapidly advancing space research organizations, all who specialize along these lines stands a good chance of becoming space research scientist.
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