Monsoon Paradox and Rising Disasters

• Below-normal monsoon forecast masks rising extreme rainfall events, as climate change increases variability, intensifies disasters, and complicates accurate seasonal predictions in India.

Key Drivers: Monsoon Uncertainty and Disaster Surge

• Ocean Drivers: El Niño & Indian Ocean Dipole disrupt monsoon spread, causing deficits and extremes.
• Climate Warming: Extreme rainfall events rose from ~60 to 100 annually, reaching 181 in 2024 due to higher moisture.
• Erratic Patterns: The India Meteorological Department forecast of 92% rainfall still shows uneven distribution and sudden heavy bursts.
• Urban Exposure: Rapid urbanisation increases vulnerability to intense rainfall. E.g., Floods caused ~17,500 deaths (2012–21).
• Forecast Limits: IMD predicts heavy rain alerts, but the exact intensity remains uncertain due to chaotic weather systems.

Monsoon Risks and Rising Impacts

• Disaster Losses: ~17,500 flood deaths (2012–21) with rising economic damages from frequent extreme rainfall events.
• Urban Stress: Recurrent flooding disrupts transport, housing, and city economies due to weak drainage and planning gaps.
• Farm Instability: Erratic rainfall (dry spells + intense bursts) reduces crop yields, threatening farmer incomes and food security.
• Fiscal Pressure: Floods account for 55% of disaster expenditure, increasing the burden on governance and resilience planning.

Rising Challenges in Monsoon Management

• Prediction Gaps: The India Meteorological Department can issue alerts but cannot precisely predict intensity (250 mm vs 500 mm events), limiting preparedness.
• Urban Mismanagement: Cities like Mumbai (2005 floods) and Chennai (2015 floods) faced severe flooding due to encroachment and poor drainage.
• Infrastructure Deficit: Despite over 40 Doppler radars, coverage gaps persist; extreme rainfall events exceeded 181 in 2024, straining monitoring systems.
• Governance Fragmentation: Floods account for 55% of disaster expenditure, yet coordination gaps among the National Disaster Management Authority, states, and urban bodies delay response.

Pathways to Monsoon Resilience

• Forecasting Upgrade: Expand Doppler radar network (~40 to 70 planned by the India Meteorological Department) and use AI models for more accurate short-term extreme rainfall predictions.
• Urban Reforms: Over 7,900 flood-prone urban areas identified; enforce floodplain zoning, restore wetlands, and upgrade drainage infrastructure.
• Nature-Based Solutions: Cities adopting blue-green infrastructure (urban lakes revival in Bengaluru) can reduce flood peaks by 20–30%.
• Disaster Preparedness: Strengthen early warning systems via the National Disaster Management Authority; improve coordination, as floods account for 55% of disaster expenditure.

India’s monsoon demands risk-based management; as said, “Climate defines risk,” resilience through better forecasting, infrastructure, and governance is essential.

Reference: The Indian Express

PMF IAS Pathfinder for Mains – Question 648

Q. Despite relatively stable seasonal monsoon totals, India is witnessing a sharp rise in short-duration extreme rainfall events. Examine the drivers of this emerging pattern and discuss its implications for disaster risk management. (250 Words) (15 Marks)

Approach

• Introduction: Write a brief introduction about the changing patterns of the monsoon.
• Body: Write the drivers of this emerging pattern, its implications for disaster risk management, and the way forward.
• Conclusion: Emphasis on resilient cities and proactive disaster preparedness to reduce climate risks, minimise losses, and ensure sustainable urban development.