ISRO Detects Strong El Niño Looming, Threatening Global Weather and India’s Monsoon
GS3Economy · S&T · Environment · Security· Space technology (ISRO, missions)· Prelims + Mains·
Remote sensing and climate monitoring: a key GS3 topic for disaster management and science & technology.
Why in news
ISRO's EOS-06/Oceansat-3 satellite detected declining marine productivity and wind reversals in the equatorial Pacific, indicating a developing El Niño.
Background
ISRO's EOS-06/Oceansat-3 satellite orbits at 741 km above Earth. The World Meteorological Organization (WMO) forecasts an 80% probability for El Niño conditions between June and August 2026.
Facts for Prelims
- S&TEOS-06/Oceansat-3: ISRO satellite used to monitor marine productivity and wind patterns.
- FactEOS-06/Oceansat-3 orbital altitude: 741 km above Earth.
- FactWMO forecast: 80% probability of El Niño conditions by June–August 2026.
- PlaceEquatorial Pacific: Region where wind reversals and reduced chlorophyll-a levels indicate El Niño.
Prelims practice question
What is the orbital altitude of the ISRO EOS-06/Oceansat-3 satellite used to monitor marine productivity?
- (a)741 km
- (b)850 km
- (c)1200 km
- (d)500 km
Show answer
Answer: (a) 741 km — The note specifies that the EOS-06/Oceansat-3 satellite orbits at 741 km above Earth.
For Mains
Q. Discuss how satellite-based remote sensing enhances India's ability to mitigate the socio-economic impacts of extreme climatic phenomena like El Niño.
Dimensions to cover in your answer
- Data integration: Combining ISRO's marine productivity data with WMO forecasts for early warning
- Agricultural vulnerability: Impact of erratic monsoon patterns on food security and rural livelihoods
- Technological sovereignty: Reducing reliance on foreign meteorological data for climate modeling
Keywords: Remote Sensing · Climate Resilience · Monsoon Dynamics · Marine Productivity · Early Warning Systems
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