Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment
	Xie, Q ; Huang, K ; Wang, DX ; Yang, L ; Chen, J ; Wu, ZW ; Li, DN ; Liang, ZY
刊名	ACTA OCEANOLOGICA SINICA
	2014
卷号	33 期号:1 页码:127-134
关键词	global positioning system radiosonde temperature and relative humidity profile systematic bias random error tropical ocean
ISSN号	0253-505X
通讯作者	dxwang@scsio.ac.cn
中文摘要	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.
学科主题	Oceanography
收录类别	SCI
资助信息	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]
原文出处	SPRINGER
WOS记录号	WOS:000330092300016
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10592]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Xie, Q,Huang, K,Wang, DX,et al. Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment[J]. ACTA OCEANOLOGICA SINICA,2014,33(1):127-134.
APA	Xie, Q.,Huang, K.,Wang, DX.,Yang, L.,Chen, J.,...&Liang, ZY.(2014).Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment.ACTA OCEANOLOGICA SINICA,33(1),127-134.
MLA	Xie, Q,et al."Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment".ACTA OCEANOLOGICA SINICA 33.1(2014):127-134.