What are rogue waves?
Context Rogue waves — unusually large waves compared to ones which come before and after — pose a threat to ships, coastal and offshore infrastructure, and human lives. Unfortunately, there…
Emergence of La Niña delayed
Context Multiple global weather models have forecasted a delayed emergence of La Niña the periodic cooling of ocean surface temperature in the equatorial Pacific Ocean. While earlier they expected La…
Hurricane Beryl: What are hurricanes, their types?
Context Following their win in the ICC World T20 Cup, the Indian cricket team has been stranded in Barbados due to Hurricane Beryl. What do we know about Hurricane Beryl?…
Why June 21 referred as Summer Solstice?
Context The longest day of the year, for anyone living north of the Equator, is June 21. The day is referred to as the summer solstice, and it occurs when…
Fujiwhara effect
Context When two hurricanes (or cyclones, depending on where you live), spinning in the same direction, are brought close together, they begin ‘an intense dance around their common center’ –…
How does a cyclone affect the monsoon’s onset?
Context The impact of global warming on the monsoons are manifest in the onset, withdrawal, its seasonal total rainfall, and its extremes. Global warming also affects the cyclones over the Indian Ocean…
Japanese archipelago
Context The Japanese archipelago, one of the world’s prominent island groups that lies just off the coast of Eurasia, now has 14,125 islands, according to the Japanese government. Key Details…
Main Central Thrust, Himalayan Thrust and Frontal Thrust
Main Central Thrust, Himalayan Thrust and Frontal Thrust Context Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause…
What is a bomb cyclone?
Context The storm pummelling large swaths of the United States and Canada is what forecasters call a “bomb cyclone.” What is a “bomb cyclone”? Forecasters have termed the blizzard as different from…
Mauna Loa and Mount Semeru Volcanoes
Context Two major volcanoes Mauna Loa in Hawaii and Mount Semeru in Indonesia — erupted in a span of a week, releasing plumes of gases such as carbon dioxide (CO2)…
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