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Ocean-atmospheric exchanges rates of CO 2 depend on the concentration of carbon dioxide already present in both the atmosphere and the ocean, temperature, salinity, and wind speed. [38] This exchange rate can be approximated by Henry's law and can be calculated as S = kP, where the solubility (S) of the carbon dioxide gas is proportional to the ...
The marine carbon cycle involves processes that exchange carbon between various pools within the ocean as well as between the atmosphere, Earth interior, and the seafloor. The carbon cycle is a result of many interacting forces across multiple time and space scales that circulates carbon around the planet, ensuring that carbon is available ...
The exchange between the ocean and atmosphere can take centuries, and the weathering of rocks can take millions of years. Carbon in the ocean precipitates to the ocean floor where it can form sedimentary rock and be subducted into the Earth's mantle. Mountain building processes result in the return of this geologic carbon to the Earth's surface.
The Global Ocean Data Analysis Project (GLODAP) is a synthesis project bringing together oceanographic data, featuring two major releases as of 2018. The central goal of GLODAP is to generate a global climatology of the World Ocean's carbon cycle for use in studies of both its natural and anthropogenically forced states.
Export and burial rates of terrestrial organic carbon in the ocean [27] The diagram on the right shows a more complex model with many interacting boxes. Reservoir masses here represents carbon stocks , measured in Pg C. Carbon exchange fluxes, measured in Pg C yr −1 , occur between the atmosphere and its two major sinks, the land and the ocean.
After World War II, advancements in geochemical techniques propelled marine chemistry into a new era. Researchers began using isotopic analysis to study ocean circulation and the carbon cycle. Roger Revelle and Hans Suess pioneered using radiocarbon dating to investigate oceanic carbon reservoirs and their exchange with the atmosphere. [46]
Ultimately, most of the CO 2 emitted by human activities will dissolve in the ocean, [4] however the rate at which the ocean will take it up in the future is less certain. In a study of carbon cycle up to the end of the 21st century, Cox et al. (2000) [ 5 ] predicted that the rate of CO 2 uptake will begin to saturate at a maximum rate at 5 ...
For example, between the 1950s and the 1980s, the temperature of the Antarctic Southern Ocean rose by 0.17 °C (0.31 °F), nearly twice the rate of the global ocean. [15] The warming rate varies with depth. The upper ocean (above 700 m) is warming the fastest. At an ocean depth of a thousand metres the warming occurs at a rate of nearly 0.4 °C ...