NSSC OpenIR
An Evaluation of Fengyun-3C Radio Occultation Atmospheric Profiles Over 2015-2018
Alternative TitleWOS:000550824800001;20202808921488
Wei, Jinde; Li, Ying1; Zhang, Kefei2; Liao, Mi3; Bai, Weihua4; Liu, Congliang4; Liu, Yan5; Wang, Xiaoming6
Source PublicationREMOTE SENSING
2020
Volume12Issue:13Pages:2116
DOI10.3390/rs12132116
Language英语
Keywordfengyun-3C GNSS radio occultation evaluation EARTHS ATMOSPHERE GPS TEMPERATURE REFRACTIVITY PERFORMANCE CHAMP GNOS
AbstractFengyun-3C (FY-3C) is the first Chinese satellite that is capable of using the Radio Occultation (RO) technique to retrieve atmospheric profiles. This research evaluates the quality of FY-3C RO profiles including refractivity, temperature, and specific humidity by comparing with corresponding information from the European Centre for Medium-Range Weather Forecasts (ECMWF) Interim Reanalysis (ERA-Interim) data over the period of 2015-2018. The evaluation is carried out by calculating and analyzing mean systematic differences between FY-3C and ERA-Interim profiles and corresponding standard deviations over a selected spatial and temporal domain. Results show that the FY-3C RO profiles are overall with good agreements with the ERA-Interim data. Global mean refractivity systematic differences are within +/- 0.2% from 5 to 30 km altitude range with relative standard deviations of less than 2%. Global temperature mean systematic differences vary within +/- 0.2 K from a 10- to 20-km altitude range with standard deviations of less than 2 K. Global mean specific humidity differences are found to be within +/- 0.2 g/kg from 2 to 20 km with standard deviations of less than 1 g/kg. FY-3C profiles show visible latitudinal and altitudinal variations, while the seasonal variations are minor. Sampling errors of refractivity and temperature are also found to be larger at higher latitudinal regions due to RO events being less sampled in the polar region.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7658
Collection中国科学院国家空间科学中心
Affiliation1.China Univ Min & Technol CUMT, Sch Environm Sci & Spatial Informat, Xuzhou 221116, Jiangsu, Peoples R China
2.Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol APM, State Key Lab Geodesy & Earths Dynam, Wuhan 430071, Peoples R China
3.RMIT Univ, Satellite Positioning Atmosphere Climate & Enviro, Melbourne, Vic 3041, Australia
4.Chinese Meteorol Adm NSMC CMA, Natl Satellite Meteorol Ctr, Beijing 100081, Peoples R China
5.Chinese Acad Sci NSSC CAS, Natl Space Sci Ctr, Beijing Key Lab Space Environm Explorat, Beijing 100019, Peoples R China
6.Chinese Meteorol Adm NMC CMA, Natl Meteorol Ctr, Beijing 100081, Peoples R China
7.Chinese Acad Sci AIRS CAS, Aerosp Informat Res Inst, 9 Dengzhuang South Rd, Beijing 100094, Peoples R China
Recommended Citation
GB/T 7714
Wei, Jinde,Li, Ying,Zhang, Kefei,et al. An Evaluation of Fengyun-3C Radio Occultation Atmospheric Profiles Over 2015-2018[J]. REMOTE SENSING,2020,12(13):2116.
APA Wei, Jinde.,Li, Ying.,Zhang, Kefei.,Liao, Mi.,Bai, Weihua.,...&Wang, Xiaoming.(2020).An Evaluation of Fengyun-3C Radio Occultation Atmospheric Profiles Over 2015-2018.REMOTE SENSING,12(13),2116.
MLA Wei, Jinde,et al."An Evaluation of Fengyun-3C Radio Occultation Atmospheric Profiles Over 2015-2018".REMOTE SENSING 12.13(2020):2116.
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