GEO E111 Lecture Notes - Lecture 21: Subtropical Ridge, Calm Air, Prokaryotic Small Ribosomal Subunit
Document Summary
Found between 23 n and 23 n. A zone of low pressure and doldrums (light and intermediate winds). Zone where s. e and n. e trade winds converge. Migrates to the n and with the apparent movement of the overhead sun. Zone of divergence of t. winds and westeries. Zone of convergence of westeries and polar easteries. Zone of descending calm air of low temperature. These are the major winds blowing over the earth frequently and consistently and which influence the world weather: trade winds. Blow from sub-tropical high pressure zone and blow to the equatorial low pressure belt: westeries. Originate from sub-tropical high pressure zone and blow to the temperate low pressure belt: the polar easteries. Originate from polar high pressure zone and blow to temperate low pressure zone. Seasonal winds which reverse in the direction of flow. They blow towards the land during summer (onshore) and from the land during winter (off shore).
