Drought scare in half of India

Lakes dry up, groundwater depletes: Drought scare in half of India

• According to India Meteorological Department’s (IMD) latest data, more than half of India is reeling from drought-like conditions.
• Millions are struggling for drinking water as lakes dried up and groundwater levels depleted amid a sluggish monsoon that has impacted the sowing of key summer crops over the past two weeks.
• The monsoon was 39% deficient till June 22 despite marginal improvement over the last week.
• Most districts in east, central and peninsular India are facing “extremely dry” conditions, as per the Standard Precipitation Index (SPI) that shows the observed rainfall amount compared with the rainfall climatology at a certain place over a long-term reference period. (The index is released by IMD Pune’s Climate Application and User Interface team).
• The index reflects long-term trends and water storage conditions in different parts of the country. Scanty pre-monsoon rains and delayed monsoon onset together created conditions for drought.
• Nearly 51% of the country’s total geographical area has received deficient rainfall so far, delaying planting of crops.
• Reservoirs in Telangana were 36% below normal; Andhra Pradesh at 83%; Karnataka at 23%; Tamil Nadu at 43% and Kerala at 38%. (Normal storage means average storage of the past 10 years).

Details:
• Chennai is one of several cities that is facing intense water shortage across the country.
• Tamil Nadu’s three reservoirs at Poondi, Cholavaram and Chembarambakkam, which supply water to the state’s capital, have depleted dramatically, forcing IT companies to redraw their operational plans and pushing eateries
to stop serving lunch. Several water bodies, including the Chembarambakkam lake and the Puzhal reservoir, have shrunk due to water stress.
• Some river basins are also extremely dry. The Tapi basin, for example, is 81% below the 10-year average storage; Sabarmati at 42%; Krishna at 55%; Cauvery basin at 45% and Ganga basin at 9.25% below the levels.

Criticality of monsoon
• The monsoon is critical for agriculture, which employs nearly half of India’s population, since 60% of the country’s net sown area doesn’t have irrigation. Rural incomes are a key driver of overall demand in the economy.
• Farmers have been able to sow 9.06 million hectares so far, down 12% from last year’s 10.3 million hectares sown in the corresponding period.

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