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Deciphering Cyclone Formation Since the '90s: Impact of WACE



  Oct 12, 2023

Changes in Cyclone Formation Since the 1990s:Warm Arctic, Cold Eurasian' (WACE)



What does the study say about cyclone formation?

A: The study suggests that there was a significant change in the potential for cyclones to form over the Arabian Sea in the late 1990s. This change may be linked to global warming and shifts in climate patterns like the 'Warm Arctic, Cold Eurasian' (WACE) pattern.

What is cyclogenesis?

A: Cyclogenesis is the process that leads to the formation of cyclones. It depends on various factors like sea surface temperature, wind changes, and ocean heat content.

What is WACE?

A: WACE stands for 'Warm Arctic, Cold Eurasian' pattern. It involves warm surface temperatures over the Arctic and cold temperatures over Eurasia. This pattern affects upper-level wind circulation that reaches into the Indian Ocean.

What is the difference between a trend, a shift, and decadal variability?

A: A 'trend' implies a continuous change in one direction. A 'shift' is a sudden change from one state to another. 'Decadal variability' refers to changes that occur over tens of years but may return to a prior state.

Why is this study important for India?

A: Understanding whether changes in cyclone formation, monsoon intensity, and extreme weather events are trends or shifts helps in planning resource allocation for climate adaptation.

What challenges do climate scientists face?

A: The challenge is to understand whether these changes are long-term trends or part of natural variability. This is crucial for planning and adapting to future climate risks.

What are the implications for resource planning?

A: Knowing whether these changes are trends or shifts affects how we plan the use of resources like water, crops, and energy. It helps in preparing for future climate risks.

Are these changes fully understood?

A: No, the causes of such changes in cyclone formation and other climate variables are not fully understood. More research is needed to understand natural variability and its interaction with global warming.


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