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| Pendleton, Linwood; Comte, Adrien; Langdon, Chris; Ekstrom, Julia A.; Cooley, Sarah R.; Suatoni, Lisa; Beck, Michael W.; Brander, Luke M.; Burke, Lauretta; Cinner, Josh E.; Doherty, Carolyn; Edwards, Peter E. T.; Gledhill, Dwight; Jiang, Li-qing; Van Hooidonk, Ruben J.; Teh, Louise; Waldbusser, George G.; Ritter, Jessica. |
| Reefs and People at Risk Increasing levels of carbon dioxide in the atmosphere put shallow, warm-water coral reef ecosystems, and the people who depend upon them at risk from two key global environmental stresses: 1) elevated sea surface temperature (that can cause coral bleaching and related mortality), and 2) ocean acidification. These global stressors: cannot be avoided by local management, compound local stressors, and hasten the loss of ecosystem services. Impacts to people will be most grave where a) human dependence on coral reef ecosystems is high, b) sea surface temperature reaches critical levels soonest, and c) ocean acidification levels are most severe. Where these elements align, swift action will be needed to protect people's lives and... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00636/74827/75207.pdf |
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| Jiang, Li-qing; Carter, Brendan R.; Feely, Richard A.; Lauvset, Siv K.; Olsen, Are. |
| The ocean's chemistry is changing due to the uptake of anthropogenic carbon dioxide (CO2). This phenomenon, commonly referred to as "Ocean Acidification", is endangering coral reefs and the broader marine ecosystems. In this study, we combine a recent observational seawater CO2 data product, i.e., the 6th version of the Surface Ocean CO2 Atlas (1991-2018, similar to 23 million observations), with temporal trends at individual locations of the global ocean from a robust Earth System Model to provide a high-resolution regionally varying view of global surface ocean pH and the Revelle Factor. The climatology extends from the pre-Industrial era (1750 C.E.) to the end of this century under historical atmospheric CO2 concentrations (pre-2005) and the... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00676/78798/81040.pdf |
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| Jiang, Li-qing; Feely, Richard A.; Carter, Brendan R.; Greeley, Dana J.; Gledhill, Dwight K.; Arzayus, Krisa M.. |
| Aragonite saturation state (Ωarag) in surface and subsurface waters of the global oceans was calculated from up-to-date (through the year of 2012) ocean station dissolved inorganic carbon (DIC) and total alkalinity (TA) data. Surface Ωarag in the open ocean was always supersaturated (Ω > 1), ranging between 1.1 and 4.2. It was above 2.0 (2.0–4.2) between 40°N and 40°S but decreased toward higher latitude to below 1.5 in polar areas. The influences of water temperature on the TA/DIC ratio, combined with the temperature effects on inorganic carbon equilibrium and apparent solubility product (K′sp), explain the latitudinal differences in surface Ωarag. Vertically, Ωarag was highest in the surface mixed layer. Higher hydrostatic pressure, lower water... |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00293/40401/38958.pdf |
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