Indian South west monsoon and Global warming

South west monsoon is considered India’s lifeline. This brings rains across the country during the summer. But the geologist says, India may lose this lifeline in the span of 150 years. Researchers related to the events, have predicted this phenomenon is due to the fall out of the global warming. It has become responsible in increasing the rate of temperature rise over Arabian Sea.

In a very shocking revelation, the new study by Indian Institute of Tropical Meteorology warns that there is every likelihood of reducing the temperature difference between land and sea, commonly known as Temperature Gradient, accountable for attracting rain causing winds from Arabian Sea towards Indian mainland.

Global warming is the increase in the average temperature of the Earth’s near-surface air and oceans since the mide-20th century and its projected continuation. Global surface temperature increased 0.74 or 0.18C during the previous century.

The usually talked about measures of global warming happens to be the trend in globally averaged temperature closer to Earth’s surface. Expressed as linear trend, this temperature rose by 0.74C or 0.18C over the period 1006-2005. The rate of warming over the last 50 years of that period was almost double. The urban heat island effect is estimated to account for about 0.002C of warming per decade since 1900.

As per NASA’s Goddard Institute for Space Studies, 2005 it was the warmest year since reliable, widespread instrumental measurements became available in the late 1800s exceeding the previous record set in 1998 by a few hundredths of a degree.

The study says, if the gradient turns out to be zero, the monsoon winds will be replaced by easterly winds thus disturbing the flow of South-west monsoon. The Indian Meteorology Department demonstrated a 23 per cent reduced rain during the present season is a great point of alarming .At a time when the entire world is discussing about the climate and global warming, India has to prepare a well placed mechanism to meet any forthcoming eventuality. And this can be an indication of this phenomenon.

More than anything else, global warming is responsible for the rise in the average temperature across the globe. This is considered behind the rise in temperature over the Arabian Sea, and confirms the study.