Rossby waves are massive, slow-moving ripples in the Jet Stream. They are caused by the Earth’s rotation and the presence of large mountain ranges. These waves are responsible for moving cold Arctic air toward the equator and warm tropical air toward the poles, essentially acting as the planet’s primary heat-exchange system for the mid-latitudes. ANSWER: (B) A giant meander in high-altitude winds
What is the “Rossby Wave” in the context of the atmosphere? (A) A wave in the ocean caused by wind (B) A giant meander in high-altitude winds (C) A sound wave caused by lightning (D) A localized heat wave in the desert
Share
Rossby waves or planetary waves, are the “loops” you see on a weather map in the jet stream. These waves form because the Coriolis effect changes in strength with latitude. When these waves become very large, they create “troughs” (where cold air dips south) and “ridges” (where warm air surges north). If a Rossby wave becomes stuck or “blocked,” it leads to persistent weather patterns, such as a week-long heatwave or a “Polar Vortex” event. Understanding these waves is the most advanced way to predict long-term weather changes for entire continents.
TA Exam is your one-stop solution for SSC CHSL and MTS exam prep. Review, practice and succeed with high-quality questions.
Download the app now!
Android: https://play.google.com/store/apps/details?id=com.ta.exam
iOS: https://apps.apple.com/app/id6759824444