meri saheli magazine subscription

meri saheli magazine subscription

meri saheli magazine subscription  Published this article page no  46 The Indian Meteorological Department (IMD) declared the seasons first heat wave and severe heat wave March 11 and the first depression March 3.Experts say this is early compared to previous years and may be because of an unexpected climatic anomaly which could in turn be linked to global warming. According to experts The reason behind early heat waves early depressions and the weird dust storms is the continued persistence of a northsouth low pressure pattern that forms over India during winters when a La Niña phenomenon is occurring in the equatorial Pacific Ocean.The last time we had a La Niña persisting for three years was during 19982000 and 2000 also had a cyclone in March. Impact of La Niña The sea surface temperatures over the east and central Pacific Ocean become coolerthanaverage during La Niña.This affects the trade winds flowing over the ocean surface through change in wind stress.The trade winds carry this weather disturbance elsewhere and affect large parts of the world.In India the phenomenon is mostly associated with wet and cold winters. Larger concern If the interaction between the La Nina and the warm Arctic is in fact happening then it is an impact of global warming induced by human greenhouse gas emissions.  23 What are the Niño and La Niña? They are two natural climate phenomena occurring across the tropical Pacific Ocean and influence the weather conditions all over the world.While the El Niño period is characterised by warming or increased sea surface temperatures in the central and eastern tropical Pacific Ocean a La Niña event causes the water in the eastern Pacific Ocean to be colder than usual meri saheli magazine subscription buy.

meri saheli magazine subscription