Lecture 3 - 2008


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OCEANOGRAPHY TEST # 3 MULTIPLE CHOICE (FILL IN ONE OR TWO DOTS, AS NEEDED): 1. Seas A.wave speed 2. Semidiurnal B.eddies 3. Period C.roaring wall of water 4. Tidal bore D.surface current loop 5. Capillary Wave E.measure of amount of water transport 6. Knot AB.friction deflects deeper water 7. Polynya AC.wave in a storm area 8. Current Rings AD.two high tides per day 9. Mixed AE.water surface tension is restoring force 10. Ekman Transport BC.tides with large diurnal inequalities 11. Gyre BD.measure of current velocity 12. Sverdrup BE.small, disc-like feature 13. Pancake Ice CD.patch of unfrozen water 14. Swell CE.time required for 2 crests to move by a point 15. Celerity DE.occurs outside the generating area MULTIPLE CHOICE: 16. The nature of coastal currents depends on A.local winds B.river discharge C.topography D.tides E.all of the above 17. In clear ocean waters, ? wavelengths are absorbed first. A.blue B.green C.red 18. Tsunamis are ?-water waves. A.shallow B.intermediate C.deep 19. Polar oceans usually have ? mixing. A.little B.a lot of 20. Coastal Polynyas are also termed ? Polynyas. A.Sensible Heat B.Latent Heat C.Coastal Polynyas may be either "sensible heat" or "latent heat" polynyas
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21. Semidiurnal tides are found primarily along the U.S. ? coast. A.Pacific B.Atlantic C.Gulf of Mexico D.all of the above E.none of the above 22. Pinnacle Bergs are found mostly in the A.Northern Hemisphere B.Southern Hemisphere C.pinnacle bergs are found in both the Northern and Southern Hemispheres 23. The greatest seasonal differences in ocean temperatures are found at the A.poles B.subpolar areas C.mid- latitudes D.subtropics E.tropics 24. Most of the World's productive fisheries are in areas where there is A.downwelling B.upwelling C.both downwelling and upwelling are important to fisheries 25. Sea surface topography is due to A.bathymetric conditions B.gyres C.water density D.all of the above E.none of the above 26. Tide gauges can only be used A.near shore B.in the open sea C.tide gauges can be used anywhere there are tidal changes 27. In the centers of subtropical ocean basins, salinity tends to be ? than that of "normal" seawater. A.lower B.higher 28. Equatorial countercurrents flow from A.east to west B.west to east 29. Tidal time lags are ? for any given area. A.usually constant B.totally unpredictable 30. A standing wave may be created due to influence from a A.tide B.earthquake C.storm D.all of the above E.none of the above 31. ? are based upon the shift in frequency in sound waves. A.Pressure Gradient Methods B.Radar Altimeters C.Doppler Flow Meters D.Drift Devices E.Chemical Tracers 32. Tidal time lags are primarily due to A.continents blocking free movement of water B.friction between ocean waters and the substrate C.tidal time lags are due to all of the above D.tidal time lags are due to none of the above 33. ? breakers form tubes. A.spilling B.plunging C.surging 34. In equatorial regions, sea surface salinities are ? than "normal" seawater.
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  • Fall '10
  • Dr.PhillipMurphy
  • Southern Hemisphere, Physical oceanography, sea ice, Devices E.Chemical Tracers, C.Doppler Flow Meters

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