Scientists studied Madden-Julian Oscillation (MJO) — a global disturbance in the atmosphere in the tropical latitudes of the Southern Hemisphere. They say that its changes could intensify the “climate swing” — an increase in the frequency of droughts and heavy rains.
Climate swings
Climate change on Earth is not just about increasing heat and warm winters. It would be much more accurate to say that it is causing climate swings. In some areas with a temperate climate, prolonged droughts may occur in summer, followed by heavy rains. Somewhere else, no snow will fall all winter, but then May will be like November.
Sound familiar? Get ready, a group of scientists from Hong Kong led by Prof. Lu Mengqian and Dr. Cheng Tat-Fan conducted a study according to which these phenomena should significantly intensify by 2028. They came to this conclusion based on their study of Madden-Julian Oscillation.
The Madden-Julian Oscillation is a global atmospheric disturbance that spreads across the tropical latitudes of the Southern Hemisphere while winter prevails in the Northern Hemisphere. It lasts from 30 to 90 days and is the main source of temperature and humidity fluctuations in the middle of seasons across the planet.
The weather is changing
Long-term weather forecasts are largely based on the study of phenomena associated with Madden-Julian Oscillations. However, a new study has found that this process is intensifying.
Compared to the period from 1979 to 2014, these oscillations will become 40% more intense in 2028-68. This will lead to weather anomalies becoming more frequent and pronounced. Situations where weeks of heat without a single drop of rain are followed by record rainfall will occur more frequently, even in the Northern Hemisphere.
According to phys.org
