Physical and biological controls on the carbonate chemistry of coral reef waters: effects of metabolism, wave forcing, sea level, and geomorphology.
Physical and biological controls on the carbonate chemistry of coral reef waters: effects of metabolism, wave forcing, sea level, and geomorphology.
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DOI：
10.1371/journal.pone.0053303
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
McCulloch M
中科院分区：
文献类型：
--
作者：
Falter JL;Lowe RJ;Zhang Z;McCulloch M
我们使用环流模型 ROMS（区域海洋建模系统）和波浪变换模型 SWAN（模拟近岸波浪）提出了波浪驱动的珊瑚礁泻湖系统的三维水动力生物地球化学模型。通过模拟来探索整个珊瑚礁系统的水柱碳酸盐化学对底栖珊瑚礁代谢、波浪强迫、海平面和系统地貌变化的敏感性。我们的研究结果表明，珊瑚礁-水碳酸盐化学的变化主要取决于底栖代谢与陆上波浪能通量的平方根的比率以及礁滩的长度和深度；然而，它们对河道几何形状和珊瑚礁系统的总摩擦阻力的依赖性很小。 pCO2、pH 和文石饱和状态 (Ωar) 的日变化主要取决于净产量的变化，并且对净钙化的变化相对不敏感；然而，当 24 小时内平均时，pCO2、pH 和 Ωar 的净变化受净钙化的影响更为强烈。我们还证明，相对简单的一维分析模型可以很好地描述礁石-水碳酸盐化学对底栖代谢、波浪强迫、海平面、礁滩形态和总系统摩擦阻力的功能依赖性。重要的是，我们的结果表明，对于具有狭窄和/或深泻湖的珊瑚礁系统，相对于离岸值的珊瑚礁水 pCO2 的任何长期（数周至数月）净抵消应该是适度的。因此，许多珊瑚礁环境中水柱 pCO2 的长期演变仍然与近海水域的区域尺度海洋学密切相关，因此直接受到人为驱动的 pCO2 快速增加的影响。
We present a three-dimensional hydrodynamic-biogeochemical model of a wave-driven coral-reef lagoon system using the circulation model ROMS (Regional Ocean Modeling System) coupled with the wave transformation model SWAN (Simulating WAves Nearshore). Simulations were used to explore the sensitivity of water column carbonate chemistry across the reef system to variations in benthic reef metabolism, wave forcing, sea level, and system geomorphology. Our results show that changes in reef-water carbonate chemistry depend primarily on the ratio of benthic metabolism to the square root of the onshore wave energy flux as well as on the length and depth of the reef flat; however, they are only weakly dependent on channel geometry and the total frictional resistance of the reef system. Diurnal variations in pCO2, pH, and aragonite saturation state (Ωar) are primarily dependent on changes in net production and are relatively insensitive to changes in net calcification; however, net changes in pCO2, pH, and Ωar are more strongly influenced by net calcification when averaged over 24 hours. We also demonstrate that a relatively simple one-dimensional analytical model can provide a good description of the functional dependence of reef-water carbonate chemistry on benthic metabolism, wave forcing, sea level, reef flat morphology, and total system frictional resistance. Importantly, our results indicate that any long-term (weeks to months) net offsets in reef-water pCO2 relative to offshore values should be modest for reef systems with narrow and/or deep lagoons. Thus, the long-term evolution of water column pCO2 in many reef environments remains intimately connected to the regional-scale oceanography of offshore waters and hence directly influenced by rapid anthropogenically driven increases in pCO2.
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影响因子：
2.6
作者：
DICKSON, AG
通讯作者：
DICKSON, AG
影响因子：
3.5
作者：
Andréfouët, S;Pagès, J;Tartinville, B
通讯作者：
Tartinville, B
影响因子：
5.8
作者：
Dumas, F.;Le Gendre, R.;Andrefouet, S.
通讯作者：
Andrefouet, S.
DOI：
10.1016/0198-0149(87)90021-5
发表时间：
1987-10-01
期刊：
DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS
影响因子：
--
作者：
DICKSON, AG;MILLERO, FJ
通讯作者：
MILLERO, FJ
影响因子：
5.8
作者：
Charpy, Loic;Rodier, Martine;Gaertner-Mazouni, Nabila
通讯作者：
Gaertner-Mazouni, Nabila