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9 gru 2019 · The ocean’s chemistry is changing due to the uptake of anthropogenic carbon dioxide (CO 2). This phenomenon, commonly referred to as “Ocean Acidification”, is endangering coral reefs and the...
9 cze 2020 · Alkalinity, the excess of proton acceptors over donors, plays a major role in ocean chemistry, in buffering and in calcium carbonate precipitation and dissolution. Understanding alkalinity dynamics is pivotal to quantify ocean carbon dioxide uptake during times of global change.
13 wrz 2019 · Water bodies with moderate to high alkalinity are well-buffered against wide daily swings in pH resulting from net removal of carbon dioxide by photosynthesis during daytime and return of carbon dioxide to the water by respiratory process at night when there is no photosynthesis.
10 cze 2024 · In deeper water, CO 2 concentration increases as respiration exceeds photosynthesis, and decomposition of organic matter adds additional CO 2 to the water. As with oxygen, there is often more CO 2 at depth because cold bottom water holds more dissolved gases, and high pressures increase solubility.
In deeper water, CO 2 concentration increases as respiration exceeds photosynthesis, and decomposition of organic matter adds additional CO 2 to the water. As with oxygen, there is often more CO 2 at depth because cold bottom water holds more dissolved gases, and high pressures increase solubility.
1 maj 2023 · The results indicated that increasing pressure increases the solubility of CO 2 in aqueous solutions, resulting in lower pH values. In contrast, increasing salinity and temperature lowers the solubility and, as a result, increases the system's pH.
This is due to the natural capacity of seawater to buffer against changes in pH, which can be represented simply by: CO 2 (aq) + CO 32- + H 2 O → 2HCO 3- (4) where CO 2 is...
