Using Noble Gases to Assess the Ocean's Carbon Pumps
| Autor: | Steven Emerson, Roberta C. Hamme, David P. Nicholson, William J. Jenkins |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Solubility pump Carbon dioxide in Earth's atmosphere Argon 010504 meteorology & atmospheric sciences Arctic Regions Oceans and Seas 010604 marine biology & hydrobiology Krypton Biological pump chemistry.chemical_element Carbon Dioxide Oceanography Atmospheric sciences Noble Gases 01 natural sciences Neon chemistry Environmental science Seawater Oceanic carbon cycle Carbon 0105 earth and related environmental sciences |
| Zdroj: | Annual Review of Marine Science. 11:75-103 |
| ISSN: | 1941-0611 1941-1405 |
| Popis: | Natural mechanisms in the ocean, both physical and biological, concentrate carbon in the deep ocean, resulting in lower atmospheric carbon dioxide. The signals of these carbon pumps overlap to create the observed carbon distribution in the ocean, making the individual impact of each pump difficult to disentangle. Noble gases have the potential to directly quantify the physical carbon solubility pump and to indirectly improve estimates of the biological organic carbon pump. Noble gases are biologically inert, can be precisely measured, and span a range of physical properties. We present dissolved neon, argon, and krypton data spanning the Atlantic, Southern, Pacific, and Arctic Oceans. Comparisons between deep-ocean observations and models of varying complexity enable the rates of processes that control the carbon solubility pump to be quantified and thus provide an important metric for ocean model skill. Noble gases also provide a powerful means of assessing air–sea gas exchange parameterizations. |
| Databáze: | OpenAIRE |
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