A Time-Series View of Changing Surface Ocean Chemistry Due to Ocean Uptake of Anthropogenic CO2 and Ocean Acidification
A Time-Series View of Changing Surface Ocean Chemistry Due to Ocean Uptake of Anthropogenic CO2 and Ocean Acidification
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DOI：
10.5670/oceanog.2014.16
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发表时间：
2014-03-01
期刊：
影响因子：
2.8
通讯作者：
Magdalena Santana-Casiano, J.
中科院分区：
文献类型：
--
作者：
Bates, Nicholas R.;Astor, Yrene M.;Magdalena Santana-Casiano, J.
持续的观测不仅提供了关于海洋变暖和水循环重组（例如盐度变化）、海洋富营养化和海洋脱氧的急需数据和理解，还提供了关于海洋化学变化的迫切需要的数据和理解。作为全球海洋碳循环变化的一个例子，地表海水 CO2-碳酸盐化学的持续变化由七个独立的 CO2 时间序列记录，这些时间序列提供了 15 至 30 年期间收集的持续海洋观测数据：(1) 冰岛海，(2) 伊尔明格海，(3) 百慕大大西洋时间序列研究 (BATS)，(4) 加那利群岛海洋时间序列欧洲站 (ESTOC)，(5) 有色海洋中的碳保留北大西洋 (CARIACO) 站点、(6) 夏威夷海洋时间序列 (HOT) 和 (7) 太平洋穆尼达站点。这些海洋时间序列站点表现出非常一致的表面海洋化学变化，反映了人为二氧化碳吸收和海洋酸化的影响。本文讨论了由于人为 CO2 的吸收而导致的溶解无机碳 (DIC)、盐度归一化 DIC 和表层海水 pCO(2)（CO2 分压）的长期变化及其对海洋缓冲能力的影响。此外，我们还评估了由于海洋酸化引起的海水化学变化及其对生物碳酸钙矿物 pH 值和饱和状态的影响。
Sustained observations provide critically needed data and understanding not only about ocean warming and water cycle reorganization (e.g., salinity changes), ocean eutrophication, and ocean deoxygenation, but also about changes in ocean chemistry. As an example of changes in the global ocean carbon cycle, consistent changes in surface seawater CO2-carbonate chemistry are documented by seven independent CO2 time series that provide sustained ocean observations collected for periods from 15 to 30 years: (1) Iceland Sea, (2) Irminger Sea, (3) Bermuda Atlantic Time-series Study (BATS), (4) European Station for Time series in the Ocean at the Canary Islands (ESTOC), (5) CArbon Retention In A Colored Ocean sites in the North Atlantic (CARIACO), (6) Hawaii Ocean Time-series (HOT), and (7) Munida in the Pacific Ocean. These ocean time-series sites exhibit very consistent changes in surface ocean chemistry that reflect the impact of uptake of anthropogenic CO2 and ocean acidification. The article discusses the long-term changes in dissolved inorganic carbon (DIC), salinity-normalized DIC, and surface seawater pCO(2) (partial pressure of CO2) due to the uptake of anthropogenic CO2 and its impact on the ocean's buffering capacity. In addition, we evaluate changes in seawater chemistry that are due to ocean acidification and its impact on pH and saturation states for biogenic calcium carbonate minerals.