Hi friends in this blog we are going to learn about El-Nino and south west monsoon but first get ready for a scientific adventure that’s easy to understand!
Imagine Earth as a giant spinning disco ball, with Apratim and Rupesh dancing their hearts out. But guess what? Two special guests crash the party: El Niño and the southwest monsoon.
El Niño is like a troublemaker who loves causing chaos. Apratim and Rupesh raise their eyebrows, wondering why this troublemaker showed up uninvited. But hey, it’s a party, so they decide to go with the flow!
Now, meet Professor Pseudonimo, the superhero with a knack for playing tricks. Apratim and Rupesh find the professor quite funny, with his wacky sense of humor. The professor can make things seem real when they’re not, like a sneaky illusion.
Professor Pseudonimo approaches Apratim and Rupesh and says, “Hey, wanna join in the fun?” Apratim, always up for an adventure, and Rupesh, who loves a good laugh, eagerly agree. The professor explains that he can make the ocean currents and temperatures act funny, just for the sake of science and amusement.
With a magical wave of his hand, Professor Pseudonimo whispers to the ocean currents, “Let’s switch things up a bit! Hold on tight!” The currents get confused and start flowing in strange directions, like a crazy dance floor. Apratim and Rupesh hold hands, trying not to stumble over the swirling currents.
But wait, there’s more excitement! It’s time to meet Captain Curvy, the cosmic dancer. Captain Curvy can’t resist spinning things around, making everyone feel dizzy with laughter.
Captain Curvy spots Apratim and Rupesh and says, “You two seem like a fun pair! Want to join my whirlwind adventure?” Apratim and Rupesh happily agree, ready for some mind-bending fun.
Captain Curvy takes hold of the monsoon winds and starts twirling them like a circus act. Apratim and Rupesh can’t help but laugh as the winds follow curvy paths, like a thrilling rollercoaster ride. They feel like they’re on an exciting weather adventure with their new cosmic partner.
So there you have it: Apratim, Rupesh, El Niño, Professor Pseudonimo, and Captain Curvy, all having a blast at the spinning disco party on Earth. Remember, science can be as amusing as it is enlightening, especially when you’re dancing through the wonders of El Niño and the southwest monsoon!
Now lets understand the concept behind them . El Niño and the southwest monsoon are both weather phenomena that occur in different parts of the world. While they are not directly related to pseudo forces or the Coriolis force, they are influenced by large-scale atmospheric and oceanic circulation patterns.
watch this video to understand the concept more properly
- El Niño: El Niño is a climate pattern characterized by warmer-than-average sea surface temperatures in the central and eastern equatorial Pacific Ocean. It is associated with changes in atmospheric pressure and wind patterns, which have global implications for weather and climate. During an El Niño event, the typical trade winds weaken, resulting in reduced upwelling of cold, nutrient-rich waters along the coasts of South America. This has far-reaching effects on weather patterns, including increased rainfall in the eastern Pacific and drought conditions in parts of Asia, Africa, and the Americas.
- Southwest Monsoon: The southwest monsoon is a seasonal wind system that affects the Indian subcontinent and Southeast Asia. It brings a significant amount of rainfall to these regions during the summer months. The southwest monsoon is driven by differential heating between the landmass of the Indian subcontinent and the Indian Ocean. As the land heats up more quickly than the ocean, it creates a low-pressure area over the subcontinent. This causes moist air from the Indian Ocean to flow inland, bringing abundant rainfall to the region.
Now, let’s discuss the concepts of pseudo forces and the Coriolis force:
- Pseudo Force: A pseudo force, also known as a fictitious force, is a force that appears to act on a body but is not due to any physical interaction. It arises in a non-inertial reference frame, such as a frame that is accelerating or rotating. Pseudo forces help explain the motion of objects in such frames, but they do not arise in an inertial reference frame (a frame without acceleration or rotation).
- Coriolis Force: The Coriolis force is an apparent force that acts on a moving object in a rotating reference frame, such as the Earth. It is responsible for the deflection of moving objects (e.g., winds, ocean currents) relative to the Earth’s surface. The Coriolis force deflects moving objects to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. It influences the direction of winds and ocean currents on a global scale.
While the Coriolis force is not directly related to El Niño or the southwest monsoon, it does have an impact on the large-scale circulation patterns that influence these phenomena. The Coriolis force plays a crucial role in shaping the general atmospheric and oceanic circulation patterns around the world, including the formation of trade winds and the movement of ocean currents. These circulation patterns, in turn, interact with other factors to influence the occurrence and behavior of El Niño and the southwest monsoon.
Let’s delve deeper into the relationship between the Coriolis force and the atmospheric and oceanic circulation patterns associated with El Niño and the southwest monsoon.
1. Coriolis Force and El Niño:The Coriolis force influences the global-scale circulation patterns of the atmosphere and oceans, which in turn can impact the occurrence and behavior of El Niño events. During normal conditions, the trade winds blow from east to west along the equatorial Pacific, pushing warm surface waters toward the western Pacific. However, during an El Niño event, the trade winds weaken or even reverse, disrupting the usual east-to-west flow.The Coriolis force contributes to the weakening of the trade winds during El Niño. As the sea surface temperatures in the central and eastern equatorial Pacific become warmer, the temperature gradient between the equator and higher latitudes decreases. This reduction in temperature gradient weakens the pressure gradient, which is the driving force behind the trade winds. The Coriolis force, acting perpendicular to the wind direction, helps to further decrease the trade winds’ strength during an El Niño event.
2. Coriolis Force and Southwest Monsoon:The Coriolis force also influences the circulation patterns associated with the southwest monsoon. As the Indian subcontinent heats up during the summer months, it creates a low-pressure area. Air masses from the Indian Ocean flow towards this low-pressure area, forming the southwest monsoon winds. However, as these winds move towards the subcontinent, the Coriolis force acts on them, causing them to deflect to the right in the Northern Hemisphere.The deflection caused by the Coriolis force results in the southwest monsoon winds following a northwesterly trajectory across the Indian Ocean, before curving and reaching the Indian subcontinent as southwesterly winds. The Coriolis force is crucial in determining the direction and pattern of the southwest monsoon winds, as it influences their path and helps bring moisture-laden air towards the Indian subcontinent, resulting in significant rainfall during the monsoon season.In summary, while El Niño and the southwest monsoon are not directly caused by the Coriolis force or pseudo forces, they are influenced by large-scale atmospheric and oceanic circulation patterns, in which the Coriolis force plays a significant role. The Coriolis force helps shape the direction and behavior of winds and ocean currents on a global scale, which in turn affects the occurrence and characteristics of El Niño and the southwest monsoon.