Ocean Acidification

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12 Terms

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Ocean Acidification

decreasing pH of ocean waters due to absorption of excess atmospheric CO2

<p>decreasing pH of ocean waters due to absorption of excess atmospheric CO2</p>
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pH Scale

the concentration of Hydrogen ions. 7 on the scale is neutral. Acids are below 7. Bases are above 7.

<p>the concentration of Hydrogen ions. 7 on the scale is neutral. Acids are below 7. Bases are above 7.</p>
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Base

A solution with very few H+

>7 on pH Scale; strong bases have a pH of 12, 13, 14.

FYI: the ocean is slightly basic.

<p>A solution with very few H+</p><p>&gt;7 on pH Scale; strong bases have a pH of 12, 13, 14.</p><p>FYI: the ocean is slightly basic.</p>
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Acid

The concentration of [H+] or Hydrogen Ions

<7 on pH Scale; strong acids have a pH of 1 or 2.

FYI: carbonic acid has a pH of 4.

<p>The concentration of [H+] or Hydrogen Ions</p><p>&lt;7 on pH Scale; strong acids have a pH of 1 or 2.</p><p>FYI: carbonic acid has a pH of 4.</p>
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Neutral pH

pH is equal to 7

contains equal numbers of hydrogen and hydroxide ions

[H+] = [-OH]

Example: WATER

<p>pH is equal to 7</p><p>contains equal numbers of hydrogen and hydroxide ions</p><p>[H+] = [-OH]</p><p>Example: WATER</p>
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Carbonic Acid

CO2 + H2O --> H2CO3

The acid formed from carbon dioxide in water.

<p>CO2 + H2O --&gt; H2CO3</p><p>The acid formed from carbon dioxide in water.</p>
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Calcium Carbonate

CaCO3

The white material in shells and limestone.

<p>CaCO3</p><p>The white material in shells and limestone.</p>
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The carbonate pump

The cycling of calcium carbonate formed into shells by certain organisms such as plankton and mollusks

<p>The cycling of calcium carbonate formed into shells by certain organisms such as plankton and mollusks</p>
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Upwelling

The movement of deep, cold, and nutrient-rich water to the surface

<p>The movement of deep, cold, and nutrient-rich water to the surface</p>
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marine snow

detritus originating in the photic zone that sinks to the abyss, serving as the primary source of energy for deep- sea organisms

<p>detritus originating in the photic zone that sinks to the abyss, serving as the primary source of energy for deep- sea organisms</p>
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Ocean buffering system

Calcium Carbonate in the ocean prevents the ocean from experiencing large pH changes

<p>Calcium Carbonate in the ocean prevents the ocean from experiencing large pH changes</p>
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biological pump

transport of organic carbon and nutrients from the surface ocean to the deep ocean which are then upwelled to the surface

<p>transport of organic carbon and nutrients from the surface ocean to the deep ocean which are then upwelled to the surface</p>

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