Indian scientists gear up for a new round of experiments in Antarctica
INDIA has launched a series of new
studies of lake sediments in Antarctica
to understand the climatic conditions
across many centuries in the icy continent. Announcing this at Mormugao
port in Goa, the latest Indian scientific
team to return from an Antarctica expedition said that it has also taken up the
task of establishing a seismic station for
recording earthquake signals in that
part of the globe. The team also brought
back some 250 tonnes of waste cleared
from old Indian food dumps.
Laser heterodyne experiments - to study the upper atmosphere - are meant to study the ozone content. Team leader Arun Chaturvedi, a geologist, said that experiments in this field are "very sophisticated" and liquid nitrogen needed for this is, for the first time, being produced in Antarctica itself. "Considering the climatic conditions, it was a big achievement on this expedition, Chaturvedi added. Using the experiment, scientists from the Indian Meteorological Department studied the growth of the ozone hole over Antarctica. "We can confirm that more damage has been done to the ozone hole," said Chaturvedi.
Every five centimetre of ice on Antarctica covers an average of one year's record, say scientists, 'They hint that the oil resources of the area might be a major attraction for countries across the globe, though all forms of mining have been banned for the next five decades. "After that, we don't know what will happen," they say.
"The Antarctic is one of the best places to study what's happening to our planet - in terms of the ozone hole, cosmic rays, the undisturbed paleoclimate, monitoring earthquake signals. It is one of the drives that controls our monsoons as well," said Erlich De Sa, director National Institute of Oceanography.
We are a voice to you; you have been a support to us. Together we build journalism that is independent, credible and fearless. You can further help us by making a donation. This will mean a lot for our ability to bring you news, perspectives and analysis from the ground so that we can make change together.
Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.