Chennai Current Affairs

Scientists discover reasons behind 2015 Chennai Floods

A study conducted by the University of Hyderabad and the Indian Institute of Technology – Bombay has found out that the extreme El Nino conditions and warming of the Bay of Bengal had resulted in unprecedented heavy rainfall in Chennai for three days between November 30th to December 2nd in 2015.

Salient Findings

El Nino usually causes less than normal rainfall in the case of south-west monsoon. However, it does the reverse in the case of the northeast monsoon. It causes above-normal rainfall during the northeast monsoon. This is due to the difference in seasonal wind patterns between the two monsoons.

The researchers had carried out a simple linear correlation analysis that points out that the sea surface temperature at the Bay of Bengal is positively correlated with northeast monsoon rainfall. It has been found out that the magnitude of correlations of northeast monsoon rainfall with El Nino conditions and the Bay of Bengal warming to be almost same.

Based on several experiments, the scientists have attributed around 21% of the intensity of the extreme Chennai rainfall to the extreme El Nino condition

The consistent warming of the Bay of Bengal off the coast of Tamil Nadu and Andhra Pradesh is also considered as an important factor for the floods by the scientists.

However, scientists are yet to ascertain whether the contribution from the tropical Pacific to extreme rainfall during the northeast monsoon occurs only at the time of extreme El Nino or whether normal El Ninos too are capable of causing them.

El-Nino

El-Nino is a weather phenomenon, during which temperature at sea surface is warmer than normal sea-surface temperatures. El Nino is a warming of the Pacific Ocean between South America and the Date Line, centred directly on the Equator, and typically extending several degrees of latitude to either side of the equator. It accompanies high air surface pressure in the western Pacific. El Niño occurs when tropical Pacific Ocean trade winds die out and ocean temperatures become unusually warm

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Kazakhstan opens consulate in Chennai

Kazakhstan has opened its honorary consulate in Chennai. The consulate will cover the states of Tamil Nadu, Karnataka and Kerala. It will be headed by well-known businessman Suraj Shantakumar. This year marks the 25th anniversary of the establishment of diplomatic relations between India and Kazakhstan.

Kazakhstan has expressed confidence that the establishment of the consulate in Chennai, which is a major industrial centre would promote the potential for economic cooperation in a number of areas like IT industry, engineering, tourism, transport infrastructure, as well as agricultural production.

Background

Among the countries that constituted former USSR, Kazakhstan has emerged as the second largest economic partner for India. Kazakhstan is natural resources, minerals, oil and gas and chemical products. It is the largest exporter of Uranium to India. The prospectus of cooperation looms large in several areas. Recently, there was a meeting between the special working groups on textiles from the two countries in Kazakhstan. The bilateral trade between the two countries was around 618 million USD in 2016. India exports pharmaceuticals, tea, tobacco, and engineering equipment to Kazakhstan and imports oil products, metals and natural minerals from that country.

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