EESA07H3 Lecture : Lecture 3
15 Apr 2011
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Lecture 3: more on oceans: waves, tides, and issues. 41-47 knots, storm: 48-55 knots, violent storm: 56-63 knots, hurricane: 64+ knots. Wave motion: wave motion: as wave approaches the shore, the circular motion of the water particles is interrupted by sea floor. Changing sea level: sea level fluctuates, daily as result of tidal forces, over much longer time scales as result of: changes in volume of water in oceans as continental glaciers wax and wane. Injured over 5 million homeless and without basic needs (water, food, shelter moving approx. Ne at a rate of around 6cm per year at an oblique angle to the java trench: subduction of the indian plate beneath the asian plate generated the earthquake. 70-80% of the world"s fish stocks are fully exploited, over-exploited, depleted or in gradual recovery. 25% of all fish caught is discarded dead or dying www. notesolution. com. Ocean pollution: toxic waste, solid waste dumping, pollutants from marine vehicles, oil spill.
