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Particle Flux Parameterizations: Quantitative and Mechanistic Similarities and Differences
Copyright policy )The depth-attenuation of sinking particulate organic carbon (POC) is of particular importance for the ocean's role in the global carbon cycle. Numerous idealized flux-versus-depth relationships are available to parameterize this process in Earth System Models. Here we show that these relationships are statistically indistinguishable from available POC flux profile data. Despite their quantitative similarity, we also show these relationships have very different implications for the flux leaving the upper ocean, as well as for the mechanisms governing POC flux. We discuss how this tension might be addressed both observationally and in modeling studies.
Library of Congress Subject Headings: lcsh:Science lcsh:Q lcsh:General. Including nature conservation, geographical distribution lcsh:QH1-199.5
Microsoft Academic Graph classification: Earth system science Flux Particulate organic carbon Particulate organic matter Carbon cycle Particle flux Atmospheric sciences Environmental science
carbon export, martin curve, carbon cycle, remineralization depth, particulate organic matter, Ocean Engineering, Water Science and Technology, Aquatic Science, Global and Planetary Change, Oceanography
carbon export, martin curve, carbon cycle, remineralization depth, particulate organic matter, Ocean Engineering, Water Science and Technology, Aquatic Science, Global and Planetary Change, Oceanography
Library of Congress Subject Headings: lcsh:Science lcsh:Q lcsh:General. Including nature conservation, geographical distribution lcsh:QH1-199.5
Microsoft Academic Graph classification: Earth system science Flux Particulate organic carbon Particulate organic matter Carbon cycle Particle flux Atmospheric sciences Environmental science
- University of California, Santa Barbara United States
- Woods Hole Oceanographic Institution United States
- Massachusetts Institute of Technology United States
- Natural Environment Research Council United Kingdom
- University of California, Santa Barbara United States
- Woods Hole Oceanographic Institution United States
- Massachusetts Institute of Technology United States
- Natural Environment Research Council United Kingdom
The depth-attenuation of sinking particulate organic carbon (POC) is of particular importance for the ocean's role in the global carbon cycle. Numerous idealized flux-versus-depth relationships are available to parameterize this process in Earth System Models. Here we show that these relationships are statistically indistinguishable from available POC flux profile data. Despite their quantitative similarity, we also show these relationships have very different implications for the flux leaving the upper ocean, as well as for the mechanisms governing POC flux. We discuss how this tension might be addressed both observationally and in modeling studies.