This seasonality is important in regulating rain regime. Almost a quarter of the world—1.76bn souls—lives with the South Asian monsoon. The region is home to 23.7 per cent of the world’s population but only 4.6 per cent of renewable water sources. This has a cascading effect on the secondary economic sectors, the overall economy, food inflation, and therefore the general population's quality and cost of living.

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Usually, winter monsoons usher in dry, cool conditions, replacing the rain and heat of their summer counterparts.



Countries across South Asia are suffering some of their worst monsoon rains in years. It affects the Indian subcontinent, where it is one of the oldest and most anticipated weatherphenomena and an economically important pattern every year from June through September, but it is only partly understood and notoriously difficult to predict.



The monsoon season floods mean a high proportion of the population in South Asia is vulnerable to diseases such as dengue, malaria, leptospirosis and cholera. It is only when the Tibetan Plateau heats up significantly more than the Himalayas that the ITCZ abruptly and swiftly shifts north, leading to the bursting of monsoon rains over the Indian subcontinent. Chat with us in Facebook Messenger. Other Monsoons. mer monsoon in south Asia. Therefore, the agricultural calendar of India is governed by the monsoon. Ultimately, the southern oscillation was found to be simply an atmospheric component of the El Niño/La Niña effect, which happens in the ocean.Although the ENSO effect was statistically effective in explaining several past droughts in India, in recent decades, its relationship with the Indian monsoon seemed to weaken.A positive IOD index often negates the effect of ENSO, resulting in increased monsoon rains in years such as 1983, 1994, and 1997.As with ENSO, the atmospheric component of the IOD was later discovered and the cumulative phenomenon named Since 1950s, the South Asian summer monsoon has been exhibiting large changes, especially in terms of droughts and floods.A recent assessment of the monsoonal changes indicate that the land warming has increased during 2002-2014, possibly reviving the strength of the monsoon circulation and rainfall.Meanwhile, there has been a three-fold rise in widespread extreme rainfall events during the years 1950 to 2015, over the entire central belt of India, leading to a steady rise in the number of flash floods with significant socioeconomic losses.The department has tried to forecast the monsoon for India since 1884,The monsoon turns large parts of India from semi-deserts into green grasslands.
Changes in the characteristics of MLPSs, whether natural or forced, have far-reaching socio-economic impacts. Updated 2:57 AM ET, Thu July 18, 2019 .