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学科主题: Oceanography
题名: Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment
作者: Xie, Q ; Huang, K ; Wang, DX ; Yang, L ; Chen, J ; Wu, ZW ; Li, DN ; Liang, ZY
通讯作者: dxwang@scsio.ac.cn
关键词: global positioning system radiosonde ; temperature and relative humidity profile ; systematic bias ; random error ; tropical ocean
刊名: ACTA OCEANOLOGICA SINICA
发表日期: 2014
卷: 33, 期:1, 页:127-134
收录类别: sci
部门归属: [Xie Qiang ; Huang Ke ; Wang Dongxiao ; Yang Lei ; Chen Ju ; Wu Zewen ; Li Daning] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Xie Qiang] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572099, Peoples R China ; [Huang Ke] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Wu Zewen ; Li Daning] Chinese Acad Sci, South China Sea Inst Oceanol, Xisha & Nansha Abyssal Marine Environm Res Stn, Guangzhou 510301, Guangdong, Peoples R China ; [Liang Zhiyan] Guangzhou Meteorol Observ, Guangzhou 510080, Guangdong, Peoples R China
项目归属: LTO
资助者: The National Basic Research Program (973 Program) of China [2011CB403503, 2011CB403504]; National Natural Science Foundation of China [41276024]; Major Program of the National Natural Science Foundation of China [91228202]; National Foundation of the Indian Ocean Opening Voyage Project of China [41149903, 41049908]
摘要: Temperature and relative humidity profiles derived from two China-made global positioning system (GPS) radiosondes (GPS-TK and CF-06-A) during the east tropical Indian Ocean (ETIO) experiment were compared with Vaisala RS92-SGP to assess the performances of China-made radiosondes over the tropical ocean. The results show that there have relative large biases in temperature observations between the GPS-TK and the R592-SGP in the low troposphere, with a warm bias of greater than 2 Kin the day and a cooling bias of 0.6 K at night. The temperature differences of the CF-06-A were small in the troposphere both in daytime and nighttime, and became large peak-to-peak fluctuations in the stratosphere. The intercomparison of the relative humidity showed that the CF-06-A had large random errors due to the limitation of sensors and the lack of correction scheme, and the GPS-TK had large systematic biases in the low troposphere which might be related to the temperature impact. GPS height measurements are clearly suitable for China-made radiosonde systems operation. At night, the CF-06-A and the GPS-TK could provide virtual potential temperature and atmospheric boundary layer height measurements of suitable quality for both weather and climate research. As a result of the intercomparison experiment, major errors in the China-made radiosonde systems were well indentified and subsequently rectified to ensure improving accuracy for historical and future radiosondes.
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WOS记录号: WOS:000330092300016
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10592
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Xie, Q; Huang, K; Wang, DX; Yang, L; Chen, J; Wu, ZW; Li, DN; Liang, ZY.Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment,ACTA OCEANOLOGICA SINICA,2014,33(1):127-134
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