GEOG 131 Lecture Notes - Lecture 23: Thermocline, Jet Stream, Antarctic Circumpolar Current
Document Summary
Garbage collected in gyres: great paci c garbage patch. Cold california current: branches into cold canary current from europe to northwest africa and the warm. Warm north atlantic drift brings warm water to europe. Cold antarctic circumpolar (aka west wind drift) What affects sst (sea surface temperatures: latitude, currents, upwelling. Surface water is swept away from the coast due to surface winds. Nutrient rich waters brought to the surface. Paci c decadal oscillation: great shift approximately every decade. Wednesday, october 25, 2017: accompanied by shifts in wind and pressure. Walker cell circulation: warmer pool forms in the western paci c, sinks in eastern paci c. Southern oscillation: change in air pressure patterns. Dependent on sst: 3-7 year cycle. El nino southern oscillation (enso: warm pool in the western paci c, thermocline- boundary between warm surface waters and cold deeper waters, moderate upwelling, warm phase: el nino (-soi, cold phase: la nina (+soi)
