Jet Streams & Western Disturbances: Impacts of Climate Change
Jet Streams are fast-flowing, narrow air currents that act as global weather steering mechanisms. The interaction between the Sub-Tropical Westerly Jet (STWJ) and Western Disturbances (WDs) is crucial for North India's winter climate, now exhibiting increasing frequency and erratic behaviour under the influence of climate change.
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Mechanism and Interdependence |
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Phenomenon |
Mechanism and Geographic Path |
Indian Context and Significance |
Climate Change Impact (Erratic Behaviour) |
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Sub-Tropical Westerly Jet (STWJ) |
High-altitude air current that flows west-to-east, splitting near the Himalayas. |
Controls the movement of Western Disturbances; its position dictates the severity of North Indian winter. |
Poleward shift of the STWJ is linked to warmer winters in parts of North .... |
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