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首页> 外文期刊>Journal of atmospheric and oceanic technology >Sensor Corrections for Sea-Bird SBE-41CP and SBE-41 CTDs
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Sensor Corrections for Sea-Bird SBE-41CP and SBE-41 CTDs

机译：海鸟SBE-41CP和SBE-41 CTD的传感器校正

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摘要

Sensor response corrections for two models of Sea-Bird Electronics, Inc., conductivity—temperature-depth (CTD) instruments (the SBE-41CP and SBE-41) designed for low-energy profiling applications were estimated and applied to oceanographic data. Three SBE-41CP CTDs mounted on prototype ice-tethefed profilers deployed in the Arctic Ocean sampled diffusive thermohaline staircases and telemetered data to shore at their full 1-Hz resolution. Estimations of and corrections for finite thermistor time response, time shifts between when a parcel of water was sampled by the thermistor and when it was sampled by the conductivity cell, and the errors in salinity induced by the thermal inertia of the conductivity cell are developed with these data. In addition, thousands of profiles from Argo profiling floats equipped with SBE-41 CTDs were screened to select examples where thermally well-mixed surface layers overlaid strong thermoclines for which standard processing often yields spuriously fresh salinity estimates. Hundreds of profiles so identified are used to estimate and correct for the conductivity cell thermal mass error in SBE-41 CTDs.
机译：评估了Sea-Bird Electronics，Inc.两种型号的传感器响应校正，它们是专为低能分析应用而设计的电导率-温度深度（CTD）仪器（SBE-41CP和SBE-41），并已应用于海洋学数据。三个SBE-41CP CTD安装在北冰洋部署的原型冰冷剖面仪上，对扩散的热盐阶梯进行采样，并遥测数据以其完整的1 Hz分辨率支撑。估算和修正了有限的热敏电阻时间响应，热敏电阻采样水和电导池采样水之间的时间偏移以及电导池热惯性引起的盐度误差。这些数据。此外，从装备有SBE-41 CTD的Argo轮廓浮标中筛选出数千个轮廓，以选择示例，其中热充分混合的表面层覆盖强温线，而标准处理通常会产生虚假的新鲜盐度估算值。如此识别出的数百个分布图用于估计和校正SBE-41 CTD中的电导池热质量误差。

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