Class 3b: Winds (global and local)Atmospheric pressureAtmospheric pressureMeasuring pressureMapping pressureWhat is wind?Local winds: sea and land breezesLand and sea breezesValley and mountain breezesFoehn/chinook windsGlobal circulationCoriolis effectGlobal circulationITCZTradewindsSubtropical highsWesterliesPolar highs and easterliesSeasonal shiftsMonsoonsMonsoonsClass 3b: Winds (global and local)Atmospheric pressureAtmospheric pressure• Warm air rises, cold air sinksMeasuring pressureMapping pressure• Isobars connect points of equal pressureWhat is wind?Local winds: sea and land breezesLand and sea breezesValley and mountain breezesFoehn/chinook windsGlobal circulation• Hadley cellsCoriolis effect• Deflection from Earth’s rotationGlobal circulationITCZ• Convergence of rising airTradewindsSubtropical highsWesterliesPolar highs and easterliesSeasonal shiftsMonsoonsMonsoons• Half the world’s population relies on
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