Thai, Chinese scientists launch climate change research

Bangkok – A team of 30 Chinese and Thai scientists have launched a two-year joint research programme to study the impact of climate change on the monsoon variability – the annual rains that are key to regional rice production, media reports said Wednesday.

The joint research programme will investigate variability of the monsoon in the Indian Ocean and China and its likely impact on rice- growing in China, Thailand, Laos, Cambodia and Vietnam, The Nation newspaper reported.

It will also create regional climate modelling and research the carbon cycle in the region.

“This information will show us what we have to do if we encounter big problems that might occur in the future in Thailand and China,” said Amnat Chidthasong, who heads the Thailand Research Fund’s climate change programme.

The joint Sino-Thai monsoon research was the outcome of a meeting titled The First China-Thailand Joint Seminar on Climate Change, held in Bangkok on Monday and Tuesday.

The seminar gathered about 100 scientists and climate experts from China, India and Thailand. (dpa)

Australia’s killer bushfires have their origins in Indian Ocean

Sydney, March 25 (ANI): Climate experts have uncovered a link between the Indian Ocean Dipole (IOD) and the killer bushfires in Australia.

Found by Dr Wenju Cai and Tim Cowan, of CSIRO’s Marine and Atmospheric Research, the link indicates that a weather pattern centred on the Indian Ocean may provide an early warning system for major bushfires in southern Australia.

According to a report by ABC News, 11 of 16 major bushfires in Victoria since 1950 have been preceded by what is known as a positive IOD event.

Cai said that an unprecedented three consecutive positive IOD events preceded February’s devastating Black Saturday bushfires.

The IOD refers to temperature fluctuations in the east and western Indian Ocean.

In its negative phase, the IOD brings cool water to the ocean west of Australia and warm water to the north, leading to winds that bring rain-bearing air over the continent.

In the positive phase, water temperatures are reversed and less rainfall travels to Australia, particularly to Victoria where the negative IOD provides winter and spring rains.

As part of their research, Cai and Cowan recorded changes in the IOD using Argo floats, robotic devices that measure the subsurface ocean temperature.

They found the IOD was in an “unprecedented” positive state for three consecutive years leading up to 2009.

They said that this preconditioned the environment to the extent that it was almost inevitable the bushfires, which claimed more than 200 lives, would occur.

“If you look at the accumulative soil moisture in Victoria, it’s unprecedented, it’s never been so dry,” said Cai.

The researchers also found an IOD link to the Ash Wednesday bushfires of February 1983, with a positive event reducing rainfall during the winter of 1982.

According to Cai and Cowan, climate change projections show the frequency of positive IOD events will increase in the future.

“Almost all climate models say under climate change we are going to have an Indian Ocean warming pattern,” said Cai.

“That means it has to be manifested in either more frequent positive IOD events or higher intensity positive IODs,” he added. (ANI)