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Validation of Preliminary Results of Thermal Tropopause Derived from FY-3C GNOS Data
Liu, Ziyan1,2,3,4,5; Sun, Yueqiang1,2,3,4; Bai, Weihua1,2,3,4; Xia, Junming1,2,3,4,5; Tan, Guangyuan1,2,3,4,5; Cheng, Cheng6; Du, Qifei1,2,3,4; Wang, Xianyi1,2,3,4; Zhao, Danyang1,2,3,4,5; Tian, Yusen1,2,3,4,5; Meng, Xiangguang1,2,3,4; Liu, Congliang1,2,3,4; Cai, Yuerong1,2,3,4; Wang, Dongwei1,2,3,4
Source PublicationREMOTE SENSING
KeywordFY-3C GNOS radio occultation tropopause parameters validation
AbstractThe state-of-art global navigation satellite system (GNSS) occultation sounder (GNOS) onboard the FengYun 3 series C satellite (FY-3C) has been in operation for more than five years. The accumulation of FY-3C GNOS atmospheric data makes it ready to be used in atmosphere and climate research fields. This work first introduces FY-3C GNOS into tropopause research and gives the error evaluation results of long-term FY-3C atmosphere profiles. We compare FY-3C results with Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) and radiosonde results and also present the FY-3C global seasonal tropopause patterns. The mean temperature deviation between FY-3C GNOS temperature profiles and COSMIC temperature profiles from January 2014 to December 2017 is globally less than 0.2 K, and the bias of tropopause height (TPH) and tropopause temperature (TPT) annual cycle derived from both collocated pairs are about 80-100 m and 1-2 K, respectively. Also, the correlation coefficients between FY-3C GNOS tropopause parameters and each radiosonde counterpart are generally larger than 0.9 and the corresponding regression coefficients are close to 1. Multiple climate phenomena shown in seasonal patterns coincide with results of other relevant studies. Our results demonstrate the long-term stability of FY-3C GNOS atmosphere profiles and utility of FY-3C GNOS data in the climate research field.
Indexed BySCI ; EI
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Document Type期刊论文
Affiliation1.National Space Science Center, Chinese Academy of Sciences (NSSC/CAS), Beijing; 100190, China;
2.Beijing Key Laboratory of Space Environment Exploration, Beijing; 100190, China;
3.Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing; 100190, China;
4.University of Graz, Graz; 8010, Austria;
5.University of Chinese Academy of Sciences, Beijing; 100049, China;
6.State Intellectual Property Office of the P.R.C, Beijing; 100088, China
Recommended Citation
GB/T 7714
Liu, Ziyan,Sun, Yueqiang,Bai, Weihua,et al. Validation of Preliminary Results of Thermal Tropopause Derived from FY-3C GNOS Data[J]. REMOTE SENSING,2019,11(9):1139.
APA Liu, Ziyan.,Sun, Yueqiang.,Bai, Weihua.,Xia, Junming.,Tan, Guangyuan.,...&Wang, Dongwei.(2019).Validation of Preliminary Results of Thermal Tropopause Derived from FY-3C GNOS Data.REMOTE SENSING,11(9),1139.
MLA Liu, Ziyan,et al."Validation of Preliminary Results of Thermal Tropopause Derived from FY-3C GNOS Data".REMOTE SENSING 11.9(2019):1139.
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