Uncertainty sources for measurable ocean carbonate chemistry variables
Uncertainty sources for measurable ocean carbonate chemistry variables
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可测量海洋碳酸盐化学变量的不确定性来源
DOI：
10.1002/lno.12477
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发表时间：
2023
影响因子：
4.5
通讯作者：
Byrne, Robert H.
中科院分区：
文献类型：
--
作者：
Carter, Brendan R.;Sharp, Jonathan D.;Dickson, Andrew G.;Álvarez, Marta;Fong, Michael B.;García‐Ibáñez, Maribel I.;Woosley, Ryan J.;Takeshita, Yuichiro;Barbero, Leticia;Byrne, Robert H.
海洋碳酸盐系统是监测的关键，因为它在调节地球气候和海洋生态系统方面发挥着重要作用。使用各种测量方法对其进行监测，通常认为，只要测量了至少两个碳酸盐体系变量，就可以计算出海水碳酸盐化学的所有组分。然而，最近的几项研究强调了计算的碳酸盐化学变量和直接测量的碳酸盐化学变量之间的系统差异，这些差异对测量和量化不断变化的海洋碳循环的努力有很大影响。有鉴于此，海洋碳酸盐系统对比论坛(OCSIF)通过海洋碳和生物地球化学计划成立了一个工作组，以协调和建议研究工作，以量化和/或减少可测量的海水碳酸盐系统测量和计算中的不确定和分歧，识别这些不确定因素的未知或被忽视的来源，并为尽管存在这些不确定因素而在社区努力方面取得进展提供建议。本文旨在(1)总结在量化和减少碳酸盐体系不确定度方面的最新进展；(2)倡导进一步减少和更好地量化碳酸盐体系测量不确定性的研究；(3)提供与碳酸盐体系测量不确定度相关的少量新数据、元数据和分析；以及(4)重申和解释几项OCSIF建议背后的理由。我们专注于公海碳酸盐化学，并警告说，我们讨论的考虑在海岸、河口和沉积环境中变得更加复杂。
The ocean carbonate system is critical to monitor because it plays a major role in regulating Earth's climate and marine ecosystems. It is monitored using a variety of measurements, and it is commonly understood that all components of seawater carbonate chemistry can be calculated when at least two carbonate system variables are measured. However, several recent studies have highlighted systematic discrepancies between calculated and directly measured carbonate chemistry variables and these discrepancies have large implications for efforts to measure and quantify the changing ocean carbon cycle. Given this, the Ocean Carbonate System Intercomparison Forum (OCSIF) was formed as a working group through the Ocean Carbon and Biogeochemistry program to coordinate and recommend research to quantify and/or reduce uncertainties and disagreements in measurable seawater carbonate system measurements and calculations, identify unknown or overlooked sources of these uncertainties, and provide recommendations for making progress on community efforts despite these uncertainties. With this paper we aim to (1) summarize recent progress toward quantifying and reducing carbonate system uncertainties; (2) advocate for research to further reduce and better quantify carbonate system measurement uncertainties; (3) present a small amount of new data, metadata, and analysis related to uncertainties in carbonate system measurements; and (4) restate and explain the rationales behind several OCSIF recommendations. We focus on open ocean carbonate chemistry, and caution that the considerations we discuss become further complicated in coastal, estuarine, and sedimentary environments.
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