CivilsIASPrep.comWaves of rain: on Odisha and intense rain events
What does this development mean for UPSC preparation?
Odisha recorded 29% excess monsoon rainfall with repeated intense downpours causing widespread floods and landslides.
UPSC CSE Context
Why in News
Odisha recorded 29% excess monsoon rainfall with repeated intense downpours causing widespread floods and landslides.
Syllabus Connection
Disaster management, climate change, urban governance, and geography of river systems.
Exam Relevance
Useful for questions on extreme weather events, disaster preparedness, and climate adaptation in coastal states.
Core Issue
Odisha faces repeated intense rainfall causing floods and landslides.
Key Development
11 Bay of Bengal systems caused 1,453 mm rainfall, 29% excess, affecting 13.5 lakh people by August 27.
Stakeholders
- Odisha State Government
- India Meteorological Department (IMD)
- Affected communities
- Comptroller and Auditor General (CAG)
- Odisha University of Agriculture and Technology
Static Knowledge
High-Value Background
- Odisha's coast is a depositional plain with low gradient, hindering drainage.
- The state has a zero-casualty disaster management policy.
Exam Linkage
- Relevant for disaster management and climate change adaptation in coastal regions.
Concepts in Context
- El Niño typically suppresses monsoon rainfall, but local weather systems dominated this year.
- Runoff increases when soil is saturated from previous rains.
Institutions and Mechanisms
- IMD provides monsoon forecasts and weather warnings.
- CAG audits disaster management infrastructure and flags deficiencies.
Dynamic Analysis
Disaster Management
- Repeated intense rainfall overwhelms drainage and evacuation systems.
- Zero-casualty policy success depends on infrastructure resilience, not just evacuation.
- Urban waterlogging in Berhampur indicates civic engineering gaps.
- Landslides in highlands add to multi-hazard risk.
Climate Change
- Study shows one-day and five-day rainfall bursts becoming more common.
- Frequency of heavy-rain days is decreasing, concentrating risk.
- Protracted monsoon withdrawal correlates with climate change.
- Need to shift from seasonal anomaly response to repeated downpour preparedness.
Geography
- Coastal depositional plains with low gradient impede drainage.
- Southern highlands face slope failure risks.
- Multiple deltas increase flood vulnerability.
- River systems like Baitarani and Budhabalanga are prone to swelling.
Governance
- CAG 2024 flagged drain design and maintenance deficiencies.
- Evacuation protocols outpace civic engineering.
- Inter-state highways and rail networks disruption shows infrastructure fragility.
- Need for integrated urban and rural disaster planning.
Mains Value Addition
Arguments
- Repeated intense rainfall events require a paradigm shift from response to resilience.
- Urban infrastructure must be upgraded to handle extreme precipitation.
- Zero-casualty policy needs to be complemented by robust civic engineering.
Examples
- Berhampur urban waterlogging illustrates drainage failure.
Data Points
- 5.2 lakh people affected by July 30; 13.5 lakh by August 27.
- 60 locations received over 100 mm rain in 24 hours.
Counterpoints
- Evacuation protocols have been effective in reducing casualties.
- Focus on zero casualties may overshadow infrastructure investment.
Way Forward
- Upgrade drainage systems based on CAG recommendations.
- Integrate climate projections into urban planning and infrastructure design.
- Strengthen early warning systems for localized intense rainfall.
- Promote nature-based solutions like wetland restoration for flood mitigation.
- Enhance coordination between disaster management and civic agencies.