Razor’s edge, Pg8

Key Highlights:

• India's southwest monsoon deficit has increased to 43%, with the U.S. NOAA and India Meteorological Department (IMD) forecasting a moderate-to-strong El Niño this year.
• El Niño conditions suppress vertical air movement needed for raincloud formation and a warming Pacific weakens trade winds bringing moisture to the subcontinent.
• Central India and the Northeast are facing significant rainfall deficits of 63% and 43% respectively, while northwest India has received 5% more rain than normal.
• Reservoir storage is currently at 30.4% of capacity, which is higher than the 25.1% recorded during previous El Niño years.
• The Agriculture Ministry has identified 315 vulnerable districts, prioritizing 111 with less than 25% irrigation coverage, and prepared contingency plans.

Detailed Insights:

• The Madden-Julian Oscillation is currently in an unfavorable phase, and the Indian Ocean Dipole is not providing a buffer against the monsoon deficit.
• Historically, two-thirds of the seasonal rainfall arrives in July and August, offering a potential window for monsoon recovery.
• Extreme heat has already impacted farm labor productivity, and rainfall shortfalls are causing anxiety for plantation crops in the Western Ghats, such as cardamom in Idukki.
• The Kharif sowing window for crops like rice, pulses, and oilseeds, along with fertilizer availability, could be affected by Chinese export curbs and West Asian tensions.
• Retail food inflation, which was 4.2% in April, is likely to be further complicated by deficits in vegetables and pulses, impacting monetary policy.
• India's rural economy, heavily reliant on consistent rainfall, necessitates a shift from rain-centric to water-centric organization, promoting less water-intensive crops and improving resilience.
• The Agriculture Ministry's existing contingency plans include adjustable sowing windows and alternative seed varieties, but their effective implementation at scale is crucial.
• The government should consider establishing a new authority to coordinate inter-State water use and cropping changes based on extended El Niño forecasts, streamlining governance currently fragmented across the Agriculture Ministry, Jal Shakti Ministry, and IMD.

Scientific/Technical Concepts Involved:

• El Niño: A climate pattern characterized by the unusual warming of surface waters in the equatorial Pacific Ocean, impacting global weather.
• Madden-Julian Oscillation (MJO): An eastward-moving pulse of clouds, rainfall, winds, and pressure near the equator that typically recurs every 30 to 60 days, influencing tropical weather.
• Indian Ocean Dipole (IOD): An irregular oscillation of sea surface temperatures in which the western Indian Ocean becomes alternately warmer or colder than the eastern part, affecting rainfall in surrounding regions.
• Kharif Crops: Monsoon crops sown at the beginning of the southwest monsoon (June–July) and harvested in September–October, heavily dependent on rainfall.