El Niño likely to bring extreme weather across the world

GS Paper 1  Syllabus: Important Geophysical Phenomena   Source: HT  Context: According to the World Meteorological Organisation (WMO), the world should prepare for the development of El Niño, which is often associated with increased heat, drought or rainfall in different parts of the world.   Background: La Niña has now ended after persisting for three …

El Nino and Monsoon

GS Paper 1  Syllabus: Important Geophysical Phenomena   Source: HT  Context: According to the India Meteorological Department (IMD), there is nearly a 70% probability of an El Nino developing this monsoon. Understanding La Nina and El Nino:   Summary of the 2023 Southwest Monsoon Season Rainfall: According to the IMD, the country as a whole …

El Niño:

GS Paper 1: Topics Covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.   Context: The southwest monsoon is likely to be “normal” in 2022, though rainfall in August, the second rainiest month, will likely be subdued, according to the private weather company Skymet.   Key findings: Rajasthan, Gujarat, Nagaland, Manipur, Mizoram …

Interaction between La Niña and the warm Arctic:

GS Paper 1: Topics Covered: Important Geographical phenomenon.   Context: The Indian Meteorological Department (IMD) declared the season’s first heat wave and severe heat wave March 11 and the first depression March 3. Experts say this is early compared to previous years and may be because of an unexpected climatic anomaly which could, in turn, …

What is La Niña?

GS Paper 1 Topics Covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.   Context: The National Oceanic and Atmospheric Administration (NOAA) recently declared that La Niña has re-developed. Consecutive La Ninas following a transition through ENSO neutral conditions are not uncommon and can be referred to as a “Double-Dip.”   Background: El …

Impact of climate change on El Niño-Southern Oscillation:

GS Paper 1 Topics Covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.   Context: There is a growing body of research suggesting that climate change can cause extreme and more frequent El Niño and La Niña events. A study was conducted recently on this using one of South Korea’s fastest supercomputers,   …