Study flags steady drop in Kerala’s southwest, northeast monsoon rainfall
GS3Economy · S&T · Environment · Security· Nuclear & new energy technology· Prelims·
Why in news
The Institute for Climate Change Studies (ICCS) reported a steady decline in Kerala's southwest and northeast monsoon rainfall over the last 125 years.
Background
The ICCS study found a 12.5% decrease in southwest monsoon rainfall and a 6.1% decrease in northeast monsoon rainfall compared to long-period averages. Despite 2025 annual rainfall being slightly above average, both monsoon types remained below average with significant district-level deficits.
Facts for Prelims
- FactSouthwest monsoon rainfall in Kerala decreased by 12.5% over 125 years.
- FactNortheast monsoon rainfall in Kerala decreased by 6.1% over 125 years.
- PlaceKerala's primary rainfall sources are the southwest and northeast monsoons.
- BodyInstitute for Climate Change Studies (ICCS) conducted the rainfall trend study.
For Mains
Q. Discuss the implications of erratic monsoon patterns on the agricultural economy and water security of coastal states like Kerala.
Dimensions to cover in your answer
- Hydrological stress: Reduced monsoon reliability affecting groundwater recharge and reservoir levels
- Agricultural vulnerability: Shift in cropping patterns due to erratic precipitation and monsoon deficits
Keywords: Climate variability · Monsoon dynamics · Hydrological stress · Precipitation deficit · Climate resilience
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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.