Knowra East Asian monsoon East Asian monsoon The seasonal reversal of winds and rainfall across East Asia, shaped by interactions among the continent, the Pacific Ocean, and surrounding atmospheric systems.
East Asian summer monsoon : The warm-season circulation bringing moist air and concentrated rainfall to East Asia. It is the rainy phase, driven by northward-moving rainbands and moist maritime flow.
Hadley circulation : A tropical-to-subtropical atmospheric circulation with rising air near the equator and sinking air in the subtropics. Its seasonal shifts help shape subtropical pressure belts bordering East Asia.
Baiu : The early-summer rainy season in Japan, associated with a persistent frontal rainband. It is the Japanese expression of the broader early-summer monsoon rain belt.
East Asian summer monsoon variability : Year-to-year and longer-term changes in the strength, timing, and location of East Asian summer monsoon rainfall. Its variations help explain alternating flood and drought conditions across the region.
Monsoon onset : The seasonal transition when monsoon winds and rainfall become established in a region. Its timing varies, and defining onset consistently remains difficult across East Asia.
East Asian winter monsoon : The cold-season circulation carrying northerly winds from continental Asia toward East Asia and the western Pacific. It is the opposite seasonal phase, with cold, dry continental outflow.
Intertropical Convergence Zone : A near-equatorial zone where trade winds converge, air rises, and frequent thunderstorms develop. Its seasonal migration is part of the wider movement of tropical rain belts.
Changma : The early-summer rainy season in Korea, marked by a quasi-stationary frontal zone. It shows how the monsoon front brings prolonged rainfall to the Korean Peninsula.
Rice cultivation in East Asia : The cultivation of rice across East Asian climates, using varied combinations of rainfall, irrigation, and seasonal labor. Monsoon timing and water supply shape growing seasons and irrigation needs.
Monsoon prediction : The forecasting of monsoon circulation and rainfall on seasonal or shorter timescales. Prediction must resolve coupled ocean, atmosphere, and land influences on East Asian rain.
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