Netarts Bay is a shallow, temperate, tidal lagoon located on the northern coast of Oregon and the site of the Whiskey Creek Shellfish Hatchery (WCSH). Data collected with an autonomous continuous flow-through system installed at WCSH capable of high-resolution (1 Hz) partial pressure of aqueous CO2 (pCO2) and hourly total dissolved inorganic carbon (TCO2) measurements, with combined measurement uncertainties of < 2.0% and 0.5%, respectively, is analyzed over the 2014–2019 interval. Summer upwelling, wintertime downwelling, and in situ bay biogeochemistry represent significant modes of the observed variability in carbonate system dynamics. Summer upwelling is associated with large amplitude diel pCO2 variability, elevated TCO2 and alkalinity, but weak variability in salinity. Wintertime downwelling is associated with bay freshening by both local and remote sources, a strong tidal signature in salinity, TCO2, and alkalinity, with diel pCO2 variability much less amplified when compared to summer. Further, analysis of alkalinity-salinity relationships suggests multiple water masses inhabiting the bay during 1 year: mixing of end-members associated with direct precipitation, coastal rivers, southward displacement of the Columbia River plume, California Current surface and deep upwelled waters. The importance of in-bay processes such as net community metabolism during intervals of high productivity are apparent. These direct measurements of pCO2 and TCO2 have been useful to local hatchery owners who have monitored intake waters following historic seed-production failures related to high-CO2 conditions exacerbated by ocean acidification.

中文翻译：

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Netarts Bay 高分辨率碳酸盐岩系统动力学，或从 2014 年到 2019 年

Netarts Bay 是一个浅水温带潮汐泻湖，位于俄勒冈州北部海岸，是威士忌溪贝类孵化场 (WCSH) 的所在地。使用安装在 WCSH 的自主连续流通系统收集的数据能够高分辨率 (1 Hz) 分压水性 CO2 (pCO2) 和每小时总溶解无机碳 (TCO2) 测量，组合测量不确定度 < 2.0% 和在 2014-2019 年期间分别分析了 0.5%。夏季上升流、冬季下降流和原位海湾生物地球化学代表了观察到的碳酸盐系统动力学变化的重要模式。夏季上升流与大振幅 diel pCO2 变异性、TCO2 和碱度升高有关，但盐度变异性较弱。冬季下降流与本地和远程来源的海湾清新有关，这是盐度、TCO2 和碱度的强烈潮汐特征，与夏季相比，diel pCO2 变异性的放大要小得多。此外，对碱度-盐度关系的分析表明，在 1 年内居住在该海湾的多个水团：与直接降水、沿海河流、哥伦比亚河羽流向南移动、加利福尼亚洋流表面和深上升流水相关的终端成员的混合。在高生产力间隔期间，诸如净群落代谢之类的海湾内过程的重要性是显而易见的。