Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data

被引：76

作者：

He, Wenying ^{[1
,2
]}

Ho, Shu-peng ^{[2
]}

Chen, Hongbin ^{[1
]}

Zhou, Xinjia ^{[2
]}

Hunt, Doug ^{[2
]}

Kuo, Ying-Hwa ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Atmospher Phys, LAGEO, Beijing 100029, Peoples R China

[2] Univ Corp Atmospher Res, COSMIC, Boulder, CO 80307 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

CLIMATE TRENDS;

D O I：

10.1029/2009GL038712

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Temperature profiles derived from Global Positioning System (GPS) Radio Occultation (RO) data from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission are compared with those from four types of radiosonde systems from 12 to 25 km to assess the performance of these radiosonde systems in the upper troposphere and lower stratosphere. Results show that temperature measurements from the Vaisala-RS92 and Shanghai radiosonde systems agree well with those of COSMIC with a close-to-zero mean difference. Large temperature biases are shown for the MRZ and VIZ-B2 radiosonde systems relative to COSMIC, which are probably caused by diurnal radiative effects. In addition, we show that the temperature measurements from a new Chinese radiosonde system are improved compared to those of an older system through a comparison with COSMIC measurements. Citation: He, W., S.-P. Ho, H. Chen, X. Zhou, D. Hunt, and Y.-H. Kuo (2009), Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data, Geophys. Res. Lett., 36, L17807, doi:10.1029/2009GL038712.

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