027 - Important Geophysical Phenomena

While discussing the temperature distribution of ocean water, highlight the factors responsible for it.

The specific heat capacity of water is higher than that of land. Combined with the convection in large ocean masses, it results in slower heating and cooling of ocean water than surrounding land. Temperature distribution: Latitude wise – waters near the tropics are the warmest, with decreasing temperatures at poles and equator both. Vertical distribution ..

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What is Atlantic Meridional Overturning Circulation (AMOC)? Discuss the reasons for recent decline in the AMOC and its associated impact.

Atlantic Meridional Overturning Circulation is a phenomenon of large ocean current circulation in the Atlantic Ocean, that redistributes heat, salinity, etc., between parts of the ocean, as below. Warm north Atlantic current takes warm waters towards coast of Norway, heating surrounding coasts. A branch of this warm current, flows along coast of western Europe. Cold ..

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What are Walker circulations and how does it influence the Indian monsoons?

Walker circulation or east-west circulation or southern oscillation is a system developed especially in the South Pacific Ocean, resulting in East-West pressure differences creating currents. When the pressure is suddenly increased in the West Pacific Ocean, water from the west Pacific ocean moves along the wind to East Pacific. This is called the low phase ..

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Global Climate Risk Index 2020 Published

The Global Climate Index 2020 has been released by the international environmental thinktank ‘Germanwatch’. This is an annually published risk index that analyses the extent of loss suffered by countries due to weather-related events like storms, floods, heatwaves, etc. Germanwatch is based out of Bonn and Berlin in Germany and is an independent organization that ..

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What is the Heat Wave? Explain the after effects of Heat wave on living beings and also on the economy.

A heatwave is a period of excessively hot weather accompanied by high conditions of humidity. It is usually measured relative to the normal conditions of the weather of the area especially the normal temperatures of the season. The term is often applied in relation to the extraordinary spells of heat which may lead to crop ..

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What could be the possible reasons of the slower-than-expected progress of the western branch of the Southwest monsoon in 2019?

After the delay in the arrival, monsoon is progressing northwards. But it is still bringing less than expected rainfall. There has been a deficient by 36% compared to what is normal until this stage. It is unlikely to be made up in any substantial manner in the remaining days of the month Factors responsible for deficiency ..

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