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| lower high tides and higher low tides. Quarter Moon. Difference between high and low tide is little. the moon, sun and earth form a 90 degree angle |
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| Highest of the high tieds and highest of the low tides. Sun, Earth, and Moon are all in a row |
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| the tide changes once a day, having only 2 changes in water level daily (high and low tides) |
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| the tide changes twice a day, having only 4 changes in water level daily (2 high and 2 low tides) |
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| when surface water is blown away and cold nutrient rich water comes up from the bottom, thus supporting the creation of fisheries |
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| measure of dissolved salts in the water. the average salinity of the oceans is 35 ppt (parts per thousand) or 3.5% |
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| makes currents in the Northern Hemisphere rotate clockwise, but currents in the Southern Hemisphere rotate counterclockwise because *the earth rotates east to wast, causing water and particles to deflect (right in the North Hem and left in the South Hem)* |
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| Earth is covered by ____% of water |
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| the Northern Hemisphere is covered by ___% of water |
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| The Southern Hemisphere is covered by ____% of water |
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| massive bodies of water, not separated or surrounded by land |
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| much smaller than Oceans, nearly, or completely surrounded by land |
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| Origins of Earth's Oceans: |
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| Volcanism (erption released large amounds of water vapor and carbon dioxide) and Comets (each contains .5% water) |
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| highest salinity near Subtropical regions (Tropic of Cancer/ Capricorn) and lowest near the poles |
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| rock minerals and volcanic gasses |
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| distance between Crest and Trough |
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| Example of a warm Current: |
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| Example of a Cold Current: |
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| where do warm water currents originate? |
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| where do cold water currents originate? |
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| transitional later of water temps between the warmer surface and the freezing depths |
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| a graph of temp changes with depth |
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| caused by WIND; affect only the top few hundred meters |
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| caused by difference in temp and salinity; move slowly deep in the water |
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| what are the factors affecting movement of water: |
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| coriolis effect, temp, density, and wind |
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| tremendous energy build up in a wave that is bigger than surrounding waves |
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| where is the warmest water? |
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| zone of rapidly changing salinities (lower salinities at the surface) |
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| the colder and deeper, the |
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| water does not move, energy moves |
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| the pull of gravity from the moon and sun (moon has greater pull) |
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