The exposure of the Great Barrier Reef to ocean acidification
作者： Mathieu Mongin , Mark E. Baird , Bronte Tilbrook , Richard J. Matear , Andrew Lenton
DOI: 10.1038/NCOMMS10732
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摘要: The Great Barrier Reef (GBR) is founded on reef-building corals. Corals build their exoskeleton with aragonite, but ocean acidification lowering the aragonite saturation state of seawater (Ωa). downscaling projections from global to GBR scales requires set regional drivers controlling Ωa be resolved. Here we use a coupled circulation–biogeochemical model and observations estimate experienced by 3,581 reefs GBR, apportion contributions hydrological cycle, hydrodynamics metabolism variability. We find more detail, greater range (1.43), than previously compiled coarse maps region (0.4), or in (1.0). Most variability due processes upstream reef question. As result, future decline likely steeper currently projected IPCC assessment report. oceans become acidic, corals are threatened, generating need understand driving forces chemical Reef. Here, authors show spatial reported, created interaction circulation.
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