RANCHI: Amid reports of global climate change, the recent showers in Jharkhand could well prove to be the silver lining on the dark clouds.

Meteorologists believe that the two recent spells of rainfall that was preceded by high temperatures could be indicative of the fact that the old climate of Chotanagpur plateau is being restored.

The southern part of erstwhile Bihar, which comprises mainly of the Chhotanagpur plateau, was once known as the summer capital because of the climatic conditions prevailing here.

Every time the temperaturetouched 40 degrees Celsius, it was followed by rainfall, which was largely localized, and that would drag down the mercury considerably.

But things changed during the past few decades with Ranchi recording 42.6 degrees Celsius as the highest temperature in the month of April 1999. Though even during the last year, the maximum temperature rose to 40.2 degrees Celsius on April 9, it was followed by rainfall and immediate cooling.

Mean rainfall figures for the month of April indicate that the state receives around 27.3mm rainfall throughout the month but this year in the first three days of the month it has already received 23mm.

Weather scientist at Birsa Agriculture University A Wadood gave all credit to the large number of water bodies and awareness among people about water harvesting resulting in the change.

“It may appear impractical that few thousand ponds and checkdams and a few hundred water harvesting set-ups would change the weather pattern of a region but we have no other factor available to describe the change that is being observed over the past couple of years,” he said.

The rainfall on Tuesday evening recorded in Ranchi, Jamshedpur and parts of Hazaribag have been attributed to local reasons.

“There has been some marked western disturbance in the northern parts of the country but the rainfall was possible because of high content of moisture, which obviously comes from local water bodies,” Wadod said.

Corroborating to the assumptions, consultant for major and medium work water resource department, NK Roy admitted that there has been a substantial increase in the number of check dams and ponds over the past two years.

“Over 700 check dam projects have been completed in the last financial year taking the total number to around 10,000 whereas even a larger number of old ponds have been rejuvenated,” he said.