Analyse the atmospheric triggers responsible for the recent surge in lightning events in Eastern India. How do regional physiographic features influence lightning distribution across the Indo-Gangetic plains? Examine the implications of these patterns for rural population vulnerability.

Topic: Salient features of world’s physical geography

Q2. Analyse the atmospheric triggers responsible for the recent surge in lightning events in Eastern India. How do regional physiographic features influence lightning distribution across the Indo-Gangetic plains? Examine the implications of these patterns for rural population vulnerability. (15 M)

Difficulty Level: Difficult

Reference: DTE

Why the question
More than 140 deaths in first 17 days of April; Bihar records nine-year high as humid Bay winds and poor preparedness blamed

Key Demand of the question
It demands an analysis of the meteorological reasons behind lightning surges, a geographical explanation of how terrain influences lightning patterns, and an assessment of how these affect vulnerable rural populations.

Structure of the Answer:

Introduction
Highlight the rising trend of lightning-related deaths and connect it with convective weather systems and vulnerability in the Indo-Gangetic belt.

Body

• Atmospheric triggers: Discuss easterlies, western disturbances, jet streams, and pre-monsoon heating.
• Physiographic influence: Explain role of Shivalik foothills, flat plains, vegetation cover, and soil conductivity.
• Rural vulnerability: Cover behavioural risks, infrastructural gaps, lack of early warning access, and exposure due to livelihoods.

Conclusion
Suggest the inclusion of lightning as a notified disaster and call for grassroots-level integration of forecasting and response.