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JULY <strong>2016</strong><br />
ECONOMY REVIEW<br />
Source: IMD<br />
estimates are for 106% of the long-period average (LPA),<br />
the monsoon is expected to have spread across whole of<br />
India by end of June. Considering that ~50% of the<br />
country’s workforce depends on agriculture for a living<br />
and over half of India’s farmland lacks assured irrigation,<br />
monsoon is of paramount importance. Besides, the food<br />
inflation has failed to be tamed over the last two years<br />
mainly on account of two failed monsoons barring the<br />
issues with hoarders or middlemen. Thus, clearly the<br />
latest set of rainfall figures raises obvious doubts<br />
regarding the authenticity and the effectiveness of the<br />
forecasting methods or set of results drawn by IMD and<br />
as well as Skymet.<br />
There are various analyses available to understand the<br />
success of the IMD’s accuracy in forecasting over the<br />
years. Unfortunately, most of them have come up with<br />
unpleasant results and the accuracy of forecasting have<br />
been kept wanting. In fact, an analysis titled “What to<br />
make of the latest IMD monsoon forecast?” was carried out<br />
by The Hindu based on 10 years of forecast data. The<br />
analysis showed that the IMD’s initial April forecast got the<br />
‘rainfall range’ wrong 70% of the times. This essentially<br />
means that in 7 out of 10 years, the actual rainfall has<br />
been outside ± 5% error margin range. On the other hand,<br />
the revised June-<strong>July</strong> forecast, often regarded as a more<br />
accurate monsoon forecast got the ‘rainfall range’ wrong<br />
60% of the times. Besides, at times when IMD predicts for<br />
‘below normal’ monsoon, it could often turn out to be<br />
‘deficient’ or above normal to devastating floods. IMD<br />
classifies its rainfall forecast into five ‘ranges’ based on the<br />
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