oceans - What causes the mixing layer? currents,...

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What causes the mixing layer? currents, upwellings, etc What latitudes have a thermocline and why? lower latitudes (towards the equator) What latitudes do not have a thermocline and why? polar latitudes What characteristics of the deep water do not change over long periods”? why do the water masses maintain distinct layers? What is the temperature (in deg C) of most deep ocean waters? 4 What type of water is brought to the surface in upwelling zones? How does this benefit organisms? Cold water, they have high nutrient levels What happens to surface seawater temperatures in the easter pacific during el nino events? How does it impact upwelling and why? It gets hotter, this sets up a thermocline which leads to a picnocline. This makes upwelling difficult and significantly reduces upwelling MO7 What substance is measured in ocean waters to indicate primary productivity? Why? Where does it occur in life forms? Chlorophyll. It occurs in any organisms that photosynthesize. Dinoflagellates are what type of plankton? phytoplankton Copepods are what type of plankton? zooplankton
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oceans - What causes the mixing layer? currents,...

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