| Liu Zenghong,Xu Jianping,Yu Jiancheng. 2020. Real-time quality control of data from Sea-Wing underwater glider installed with Glider Payload CTD sensor. Acta Oceanologica Sinica, 39(3):130－140 |
| Real-time quality control of data from Sea-Wing underwater glider installed with Glider Payload CTD sensor |
| 装载GPCTD传感器的海翼水下滑翔机观测数据实时质量控制 |
| Received:February 28, 2019 |
| DOI：10.1007/s13131-020-1564-6 |
| Key words:Sea-Wing underwater glider Glider Payload CTD sensor thermal lag correction quality-control tests |
| 中文关键词: 海翼水下滑翔机 滑翔机装载(GP)CTD传感器 热滞后校正 质量控制测试 |
| 基金项目:The National Natural Science Foundation under contract Nos 41621064, 41606003, U1709202 and U1811464; the National Key R&D Program of China under contract No. 2016YFC0301201; the China Association of Marine Affairs ("Study on the feasibility of establishing an international data sharing application platform for smart ocean"). |
| Author Name | Affiliation | E-mail | | Liu Zenghong | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China | liuzenghong@139.com | | Xu Jianping | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China | | | Yu Jiancheng | State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China | |
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| Abstract: |
| Profiles observed by Sea-Wing underwater gliders are widely applied in scientific research. However, the quality control (QC) of these data has received little attention. The mismatch between the temperature probe and conductivity cell response times generates erroneous salinities, especially across a strong thermocline. A sensor drift may occur owing to biofouling and biocide leakage into the conductivity cell when a glider has operated for several months. It is therefore critical to design a mature real-time QC procedure and develop a toolbox for the QC of Sea-Wing glider data. On the basis of temperature and salinity profiles observed by several Sea-Wing gliders each installed with a Sea-Bird Glider Payload CTD sensor, a real-time QC method including a thermal lag correction, Argo-equivalent real-time QC tests, and a simple post-processing procedure is proposed. The method can also be adopted for Petrel gliders. |
| 中文摘要: |
| 海翼水下滑翔机观测的剖面数据已经广泛应用于科学研究，然而有关这些数据的质量控制仍未得到更多关注。由于CTD传感器中温度探头和电导率单元的响应时间不匹配，从而导致盐度误差，特别是在温跃层附近。水下滑翔机在长期工作后，由于生物附着和生物杀伤剂泄露进入电导率单元，通常会引起传感器漂移，因此有必要为海翼水下滑翔机的观测数据设计一套成熟的实时质量控制程序及相应的工具包。本文利用多台海翼水下滑翔机（均装载美国海鸟公司生产的GPCTD传感器）观测获取的温、盐度剖面，提出了一套实时质量控制方法，包括热滞后校正，类似Argo的实时质量控制测试以及简单的后处理程序。该套方法同样适用于海燕水下滑翔机。 |
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