National Water Grid

Context: The Inter-Linking of Rivers programme aims to connect various surplus rivers with deficient rivers. The idea is to divert excess water from surplus regions to deficient regions to help improve irrigation, increase water for drinking and industrial use, and mitigate drought and floods to an extent. India also has Read More …

Ensemble Prediction Systems

Context: IMD has launched systems for probabilistic weather forecasting known as Ensemble Prediction Systems (EPS). About the System: The India Met Department (IMD) has launched two “very high resolution” Ensemble Prediction Systems. These are to generate ten-day probabilistic weather forecasts. The new systems in place can provide rainfall forecasts with probabilities Read More …

The lowdown on falling water reserves

Context: India’s groundwater resources have been over exploited, as experts have been warning for some time now.  A Sample Assessment: According to a sample assessment in 2011, groundwater in 19 of India’s 71 districts — about 26% — were critical or exploited, meaning that nearly as much or more water Read More …

‘Beast from The East’ – the science behind Europe’s Siberian chill

Context: The so-called “Beast from the East” has arrived in the UK, bringing unusually cold weather – about 7°C colder than the historical average for this time of year. Wind chill is making temperatures feel particularly arctic. Coriolis effect: The movement of air across the globe, and the weather it brings with Read More …

Solar storms and L1 point

Context: A group of researchers from Physical Research Laboratory (PRL), Ahmedabad, have, for the first time, figured out the conditions under which certain types of solar storms can flow towards the earth and affect its atmosphere. This is important because such storms contain charged particles travelling at very high speeds Read More …