Why in News: As per the World Meteorological Organisation, Heatwaves are more intense and are starting earlier than in the past in India. What is a heat wave? A Heat Wave is a period of abnormally high temperatures, more than …
What are they? Solar storms/wind are magnetic plasma ejected at great speed from the solar surface. They occur during the release of magnetic energy associated with sunspots (‘dark’ regions on the Sun that are cooler than the surrounding photosphere), and …
What is it? Chillai Kalan is a Persian term which means ‘major cold’. It is a traditional 40-day long period of extreme cold in Kashmir starting from 21 December to January 29 every year, followed by Chillai-Khurd and Chillai-Bachha. Chillai …
NEWS With a rise in the frequency of devastating cyclones, India needs to look at long-term mitigation measures. CONTEXT The severe cyclones, Tauktae and Yaas, which battered India earlier this year, made landfall on the country’s western coast, Gujarat, and …
What is a cold wave? Wind chill factor is taken into account while declaring the cold wave situation. Wind chill factor is a measure of the rate of heat loss from skin that is exposed to the air. The wind …
India Meteorological Department (IMD) The India Meteorological Department was established in 1875. It is the National Meteorological Service of the country and the principal government agency in all matters relating to meteorology and allied subjects. It comes under the Ministry …