Examining the Influence of Recording System on the Pure Temperature Error in XBT Data
文献类型：期刊论文
| 作者 | Tan, Zhetao1,2; Reseghetti, Franco8; Abraham, John7; Cowley, Rebecca3; Chen, Keyi4; Zhu, Jiang2; Zhang, Bin5,6; Cheng, Lijing1,2,5 |
| 刊名 | JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 38期号:4页码:759-776 |
| 关键词 | Temperature In situ oceanic observations Instrumentation senors Bias Uncertainty Energy budget balance Data quality control Climate change |
| ISSN号 | 0739-0572 |
| DOI | 10.1175/JTECH-D-20-0136.1 |
| 通讯作者 | Reseghetti, Franco(franco.reseghetti@enea.it) ; Cheng, Lijing(chenglj@mail.iap.ac.cn) |
| 英文摘要 | Expendable bathythermographs (XBTs) have been widely deployed for ocean monitoring since the late 1960s. Improving the quality of XBT data is a vital task in climatology. Many factors (e.g., temperature, probe type, and manufacturing time) have been identified as major influences of XBT systematic bias. In addition, the recording system (RS) has long been suspected as another factor. However, this factor has not been taken into account in any global XBT correction schemes, partly because its impact is poorly understood. Here, based on analysis of an XBT-CTD side-by-side dataset and a global collocated reference dataset, the influence of RSs on the pure temperature error (PTE) is examined. Results show a clear time dependency of PTE on the RS, with maximum values occurring in the 1970s. In addition, the method used to convert thermistor resistance into temperature in the RS (using a resistance-temperature equation) has changed over time. These changes, together with the decadal changes in RSs, might contribute a small error (10% on average) to the RS dependency. Here, an improvement of global XBT bias correction that accounts for the RS dependency is proposed. However, more than 70% of historical global XBT data are missing RS-type information. We investigate several assumptions about the temporal distribution of RS types, and all scenarios lead to at least a similar to 50% reduction in the time variation of PTE compared with the uncorrected data. Therefore, the RS dependency should be taken into account in updated XBT correction schemes, which would have further implications for climatology studies. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42040402] ; Key Deployment Project of Centre for Ocean Mega-Research of Science, CAS[COMS2019Q01] ; National Natural Science Foundation of China[42076202] ; Earth Systems and Climate Change Hub of the Australian Government's National Environmental Science Program |
| WOS研究方向 | Engineering ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000644157500005 |
| 出版者 | AMER METEOROLOGICAL SOC |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/170940]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Reseghetti, Franco; Cheng, Lijing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Int Ctr Climate & Environm Sci, Inst Atmospher Phys, Beijing, Peoples R China 3.CSIRO, Oceans & Atmosphere, Hobart, Tas, Australia 4.Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 7.Univ St Thomas, Sch Engn, St Paul, MN USA 8.ENEA, Res Ctr Santa Teresa, Lerici, Italy |
| 推荐引用方式 GB/T 7714 | Tan, Zhetao,Reseghetti, Franco,Abraham, John,et al. Examining the Influence of Recording System on the Pure Temperature Error in XBT Data[J]. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,2021,38(4):759-776. |
| APA | Tan, Zhetao.,Reseghetti, Franco.,Abraham, John.,Cowley, Rebecca.,Chen, Keyi.,...&Cheng, Lijing.(2021).Examining the Influence of Recording System on the Pure Temperature Error in XBT Data.JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,38(4),759-776. |
| MLA | Tan, Zhetao,et al."Examining the Influence of Recording System on the Pure Temperature Error in XBT Data".JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY 38.4(2021):759-776. |
入库方式： OAI收割
来源：海洋研究所
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