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Assessment of Atmospheric Wet Profiles Obtained from COSMIC Radio Occultation Observations over China

文献类型：期刊论文

作者Xu, Guirong1,2; Yue, Xinan3; Zhang, Wengang1; Wan, Xia1
刊名ATMOSPHERE
出版日期2017-11-01
卷号8期号:11
关键词Atmospheric Profile Cosmic Radio Occultation Radiosonde
ISSN号2073-4433
DOI10.3390/atmos8110208
文献子类Article
英文摘要Atmosperic profiles derived from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) measurements make up for the lack of operational radiosonde soundings with a high spatiotemporal distribution, and their performance over China is assessed in this paper. COSMIC-retrieved atmospheric wet profiles from 2014 to 2015 are compared to the contemporaneous radiosonde profiles from 120 stations, and the vertical mean differences are used. The results show that the vertical mean biases of temperature, pressure and vapor pressure are -0.10 K, 0.69 hPa and -0.01 hPa, respectively, and that for refractivity is 0.17 N. Moreover, the temperature differences are positively correlated with station altitude, yet both the pressure and vapor pressure differences are negatively correlated with station latitude, as is the refractivity difference. The large temperature difference arising from the Qinghai-Tibet Plateau (QTP) region may be associated with the complex topography of the area and the limitations in the background model used in the COSMIC profile retrieval. Furthermore, negative refractivity bias between COSMIC and radiosonde data occurs below 5 km and is large in wet southern China, with a value of less than 1%. This result may be related to more humid conditions and super-refraction.
WOS关键词GLOBAL POSITIONING SYSTEM ; XIZANG TIBET PLATEAU ; TEMPERATURE PROFILES ; EARTHS ATMOSPHERE ; LOWER TROPOSPHERE ; REFRACTIVE-INDEX ; SURFACE PRESSURE ; CLIMATE TRENDS ; VALIDATION ; STRATOSPHERE
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000416602500002
出版者MDPI AG
资助机构National Natural Science Foundation of China(41375057 ; National Natural Science Foundation of China(41375057 ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; 41375041 ; 41375041 ; 41620104009 ; 41620104009 ; 91637211) ; 91637211) ; National Natural Science Foundation of China(41375057 ; National Natural Science Foundation of China(41375057 ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; 41375041 ; 41375041 ; 41620104009 ; 41620104009 ; 91637211) ; 91637211) ; National Natural Science Foundation of China(41375057 ; National Natural Science Foundation of China(41375057 ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; 41375041 ; 41375041 ; 41620104009 ; 41620104009 ; 91637211) ; 91637211) ; National Natural Science Foundation of China(41375057 ; National Natural Science Foundation of China(41375057 ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; open project of the Institute of Plateau Meteorology, CMA, Chengdu(LPM2014009) ; 41375041 ; 41375041 ; 41620104009 ; 41620104009 ; 91637211) ; 91637211)
源URL[http://ir.iggcas.ac.cn/handle/132A11/82088]  
专题中国科学院地质与地球物理研究所
通讯作者Xu, Guirong
作者单位1.China Meteorol Adm, Inst Heavy Rain, Hubei Key Lab Heavy Rain Monitoring & Warning Res, Wuhan 430205, Hubei, Peoples R China
2.China Meteorol Adm, Inst Plateau Meteorol, Chengdu 610072, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Guirong,Yue, Xinan,Zhang, Wengang,et al. Assessment of Atmospheric Wet Profiles Obtained from COSMIC Radio Occultation Observations over China[J]. ATMOSPHERE,2017,8(11).
APA Xu, Guirong,Yue, Xinan,Zhang, Wengang,&Wan, Xia.(2017).Assessment of Atmospheric Wet Profiles Obtained from COSMIC Radio Occultation Observations over China.ATMOSPHERE,8(11).
MLA Xu, Guirong,et al."Assessment of Atmospheric Wet Profiles Obtained from COSMIC Radio Occultation Observations over China".ATMOSPHERE 8.11(2017).

入库方式： OAI收割

来源：地质与地球物理研究所

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