Oxygen Optode Sensors: Principle, Characterization, Calibration, and Application in the Ocean
Oxygen Optode Sensors: Principle, Characterization, Calibration, and Application in the Ocean
复制标题
DOI：
10.3389/fmars.2017.00429
复制
发表时间：
2018-01-24
影响因子：
3.7
通讯作者：
Emerson, Steven R.
中科院分区：
文献类型：
--
作者：
Bittig, Henry C.;Koertzinger, Arne;Emerson, Steven R.
最近，海洋中氧浓度的测量-化学海洋学中最经典的参数之一-正在经历复兴。这并不奇怪，因为氧气在评估海洋碳循环状况和感受生物泵脉搏方面发挥着关键作用。然而，这种复兴在很大程度上是由强大的光学氧传感器的可用性及其煞费苦心的彻底表征所驱动的。对于自主观测，氧光电管是首选的传感器：它们大量用于生物地球化学-Argo浮标，滑翔机和其他自主海洋观测平台。尽管如此，数据质量和准确性往往是次优的，在某种程度上是因为传感器和数据处理并不总是直截了当的和/或传感器的特性没有得到充分考虑。在这里，我们想总结目前的知识，氧光电管，他们的工作原理，以及他们的行为与氧气，温度，静水压力，和响应时间。重点将放在Aanderaa和Sea-Bird制作的最广泛使用和接受的光器件上。我们重新审视的要点和警告，在空气中的现场校准，以及时间响应校正的剖析应用，并提供了一个成功的现场部署的要求。此外，将讨论后校正氧光电二极管数据所需的所有步骤。我们希望这篇总结能够作为一个全面而简洁的参考，帮助人们开始进行氧气观测，确保成功部署传感器和获取最高质量的数据，并促进氧气数据的后处理。最后，我们希望这将导致更多和更高质量的氧气观测，并有助于促进我们对不断变化的海洋中海洋地球化学的理解。
Recently, measurements of oxygen concentration in the ocean -one of the most classical parameters in chemical oceanography-are experiencing a revival. This is not surprising, given the key role of oxygen for assessing the status of the marine carbon cycle and feeling the pulse of the biological pump. The revival, however, has to a large extent been driven by the availability of robust optical oxygen sensors and their painstakingly thorough characterization. For autonomous observations, oxygen optodes are the sensors of choice: They are used abundantly on Biogeochemical-Argo floats, gliders and other autonomous oceanographic observation platforms. Still, data quality and accuracy are often suboptimal, in some part because sensor and data treatment are not always straightforward and/or sensor characteristics are not adequately taken into account. Here, we want to summarize the current knowledge about oxygen optodes, their working principle as well as their behavior with respect to oxygen, temperature, hydrostatic pressure, and response time. The focus will lie on the most widely used and accepted optodes made by Aanderaa and Sea-Bird. We revisit the essentials and caveats of in-situ in air calibration as well as of time response correction for profiling applications, and provide requirements for a successful field deployment. In addition, all required steps to post-correct oxygen optode data will be discussed. We hope this summary will serve as a comprehensive, yet concise reference to help people get started with oxygen observations, ensure successful sensor deployments and acquisition of highest quality data, and facilitate post-treatment of oxygen data. In the end, we hope that this will lead to more and higher-quality oxygen observations and help to advance our understanding of ocean biogeochemistry in a changing ocean.