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| 温盐深测量仪(CTD)资料质量对比分析 |
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任 强,于 非,魏传杰,范聪慧,司广成
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中国科学院海洋研究所,中国科学院海洋研究所,中国科学院海洋研究所,中国科学院海洋研究所,中国科学院海洋研究所
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| 摘要: |
| 温盐深测量仪(CTD)是目前国际上应用最为广泛的物理海洋调查仪器设备之一。2014年中国科学院海洋研究所在黄海布放的潜标上搭载了三种不同型号的CTD(37Coastal、CTD48和304Plus),本文对这三种CTD所获取的数据资料分别进行了对比分析。三者数据两两对比结果显示,37Coastal与CTD48压力以及温度数据最为接近,盐度数据则为37Coastal与304Plus相差最小。三种设备的压力、温度以及电导率数据稳定性对比结果如下, 37Coastal压力数据稳定性表现最好；其温度数据稳定性三者表现一致；而盐度数据稳定性则是37Coastal和CTD48一致。 |
| 关键词: CTD 传感器 质量 |
| DOI：10.12036/hykxjk20160719003 |
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| 基金项目:中国科学院战略性先导科技专项(XDA11020301);国家自然科学基金委青年基金(41206020)国家自然科学基金委员会(41306021);国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目(项目批准号：U1406401)； |
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| Comparison and analysis on Conductivity-temperature-depth system (CTD) data quality |
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Ren Qiang,Yu Fei,Wei Chuang-Jie,Fang Cong-Hui and Si Guang-Cheng
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Institute Of Oceanology,Chinese Academy Of Science,Institute Of Oceanology,Chinese Academy Of Science,Institute Of Oceanology,Chinese Academy Of Science,Institute Of Oceanology,Chinese Academy Of Science,Institute Of Oceanology,Chinese Academy Of Science
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| Abstract: |
| Conductivity-temperature-depth system (CTD) is one of the world’s most widely used instruments in physical oceanography. In this paper, oceanographic data acquired by three different types of CTD (37Coastal, 304Plus, and CTD48) were compared and analyzed. These CTDs were carried in the subsurface buoy placed in the Yellow Sea by Institute of Oceanology, Chinese Academy of Sciences in 2014. Results showed that the minimum pressure and temperature difference were both between 37Coastal and CTD48, while the highest correlation coefficient in salinity was between 37Coastal and 304Plus. The stability of the pressure, temperature and conductivity data acquired by those tree CTDs showed that pressure data of 37Coastal were the best of all. Three CTDs had similar stability on temperature data while the salinity data of 37Coastal were consistent with that of CTD48. |
| Key words: Conductivity-temperature-depth sensor quality |
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