El Niño Southern Oscillation (ENSO) क्या है?
ऐतिहासिक पृष्ठभूमि
मुख्य प्रावधान
10 points- 1.
El Niño is characterized by warmer-than-average sea surface temperatures in the central and eastern equatorial Pacific, leading to a shift in rainfall patterns.
- 2.
La Niña is characterized by cooler-than-average sea surface temperatures in the same region, often leading to opposite weather impacts.
- 3.
The Southern Oscillation refers to the seesaw in atmospheric pressure between the eastern and western tropical Pacific.
- 4.
During an El Niño event, India typically experiences a weakened monsoon and increased likelihood of droughts, as mentioned in the news.
- 5.
During a La Niña event, India generally receives above-average monsoon rainfall.
- 6.
ENSO events occur irregularly every 2 to 7 years and can last for 9-12 months, sometimes longer.
- 7.
Has significant global teleconnections, influencing weather patterns across continents, including rainfall, temperatures, and cyclone activity.
- 8.
Monitored by various international and national meteorological agencies like IMD for long-range forecasting.
- 9.
The news states this trend is 'exacerbated by a strong El Niño effect', indicating its role in the dry December.
- 10.
Impacts various sectors including agriculture, water resources, and disaster management.
दृश्य सामग्री
El Niño Southern Oscillation (ENSO): Phases & Global Impacts
This mind map explains the El Niño Southern Oscillation (ENSO) phenomenon, differentiating between its warm (El Niño) and cool (La Niña) phases, and detailing its significant global teleconnections, especially its impact on India's monsoon and weather patterns.
El Niño Southern Oscillation (ENSO)
- ●Definition & Mechanism
- ●El Niño (Warm Phase)
- ●La Niña (Cool Phase)
- ●Global Teleconnections & Frequency
- ●Monitoring & Research
हालिया विकास
5 विकासA strong El Niño event was active during 2023-24, influencing global weather patterns.
Improved forecasting models and observational technologies allow for better prediction of ENSO events.
Research into the interaction between ENSO and climate change, and how climate change might alter ENSO characteristics.
Increased focus on understanding Indian Ocean Dipole (IOD) and its interaction with ENSO for Indian monsoon prediction.
Development of early warning systems based on ENSO forecasts to prepare for potential droughts or floods.