Wednesday, 23 August 2017

Cloud seeding begins


The cloud seeding experiment taken up at cost of 35 crore, called Project Varshadhari, began on Monday. This cloud seeding operation, a first in Magadi and Ramanagaram, aims to condense small water particles by clouds (size less than 10 microns) to droplets of 50 microns, which can constitute rains.

The flight for cloud seeding - BQ-100 Beechcraft - was scheduled to take off from Jakkur Airport at 2.45 p.m. The flight is expected to a one-hour sortie and will spray Silver Iodide, Sodium Chloride and Potassium Chloride to condense the water particles. A committee, comprising meteorologists, experts in cloud physics and hydrologists, will monitor the process.

It was in 2003 that Project Varuna, a cloud seeding project, was launched by the then Minister for Water Resources H.K. Patil

Cloud seeding (also known as weather modification technique) is an artificial way to induce moisture in the clouds so as to cause a rainfall. In this process, either silver iodide, potassium iodide or dry ice (solid carbon dioxide) are spread onto the clouds causing rainfall. These iodide particles rise into the clouds, cause moisture to freeze. These particles act as a base for water vapours to settle on that later crystallises and falls as rain or snow

This method can be used to bring significant amount of rainfall over a specified area especially in location where rain is badly needed.

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