High quality oxygen measurements from profiling floats:: A promising new technique
High quality oxygen measurements from profiling floats:: A promising new technique
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DOI：
10.1175/jtech1701.1
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发表时间：
2005-03-01
影响因子：
2.2
通讯作者：
Send, U
中科院分区：
文献类型：
--
作者：
Körtzinger, A;Schimanski, J;Send, U
两个最先进的剖面浮标配备了新型的基于光学电极的海洋学氧气传感器。2003年9月7日，这两个浮标同时被投放在拉布拉多海中部环流中。它们在800分巴的深度漂移，并对水柱上部2000米的温度、盐度和氧气进行每周一次的剖面测量。展示了运行前6个月的初步结果。数据与投放地点的一次小型水文氧气调查进行了比较。还进一步从精度、准确度和漂移等方面对测量质量进行了检验。所获得的前28个剖面质量很高，未显示出可检测到的传感器漂移。描述了一种长期漂移控制方法，并对操作规程提出了一些建议。
Two state-of-the-art profiling floats were equipped with novel optode-based oceanographic oxygen sensors, Both floats were simultaneously deployed in the central Labrador Sea gyre on 7 September 2003. They drift at a depth of 800 db and perform weekly profiles of temperature, salinity, and oxygen in the upper 2000 m of the water column. The initial results from the first 6 months of operation are presented. Data are compared with a small hydrographic oxygen survey of the deployment site. They are further examined for measurement quality, in including precision, accuracy, and drift aspects. The first 28 profiles obtained are of high quality and show no detectable sensor drift. A method of long-term drift control is described and a few suggestions for the operation protocol are provided.