Improvement of Sea Surface Height Measurements of HY-2A Satellite Altimeter Using Jason-2

doi:10.1080/01490419.2018.1529643

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋物理与遥感研究室

	Improvement of Sea Surface Height Measurements of HY-2A Satellite Altimeter Using Jason-2
	Cui, Wei 1,2; Wang, Wei 1; Jie, Zhang 2; Yang, Jungang 2; Jia, Yongjun 3
刊名	MARINE GEODESY
	2018-11-02
卷号	41 期号:6 页码:632-648
关键词	crossover analysis HY-2A satellite altimeter measurement accuracy sea surface height the orbit error correction
ISSN号	0149-0419
DOI	10.1080/01490419.2018.1529643
英文摘要	HY-2A, which was launched on 16 August 2011, is the Chinese first microwave ocean dynamics environment satellite. Analyses of HY-2A daily sea-level anomaly data and HY-2A-Jason-2 (H-J) dual crossover sea-level anomaly differences show that HY-2A has measurement differences that mainly refer to an orbit error. H-J crossover differences and HY-2A-HY-2A (H-H) crossover differences give an estimate of the HY-2A orbit error. Smoothing cubic-spline functions are then used to obtain a continuous estimation of the HY-2A orbit error over time. On the basis of the simultaneous global minimization of H-J dual crossover differences and H-H crossover differences, the HY-2A observation error is efficiently reduced and height measurement data that are more precise are obtained. Specifically, the range bias/trend of the HY-2A altimeter is removed effectively and the root mean square of H-J crossover sea-level anomaly differences decrease from above 60 cm to 5.64 cm, and the standard deviation of H-J crossover differences decreases from 6.68 to 5.64 cm. Furthermore, the rms and standard deviations of H-H crossover differences both decrease from 7.46 to 6.55 cm. The results show that HY-2A after correction has a measurement accuracy and precision that are comparable to those of Jason-2.
资助项目	National Programme on Global Change and Air-Sea Interaction[GASI-02-PAC-YGST2-04] ; National Programme on Global Change and Air-Sea Interaction[GASI-02-SCS-YGST2-04] ; National Programme on Global Change and Air-Sea Interaction[GASI-02-IND-YGST2-04]
WOS研究方向	Geochemistry & Geophysics ; Oceanography ; Remote Sensing
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000456827900005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/10933]
专题	业务部门_海洋物理与遥感研究室
通讯作者	Yang, Jungang
作者单位	1.Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Phys Oceanog Lab, Qingdao, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao, Peoples R China 3.State Ocean Adm, Natl Satellite Ocean Applicat Serv, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Cui, Wei,Wang, Wei,Jie, Zhang,et al. Improvement of Sea Surface Height Measurements of HY-2A Satellite Altimeter Using Jason-2[J]. MARINE GEODESY,2018,41(6):632-648.
APA	Cui, Wei,Wang, Wei,Jie, Zhang,Yang, Jungang,&Jia, Yongjun.(2018).Improvement of Sea Surface Height Measurements of HY-2A Satellite Altimeter Using Jason-2.MARINE GEODESY,41(6),632-648.
MLA	Cui, Wei,et al."Improvement of Sea Surface Height Measurements of HY-2A Satellite Altimeter Using Jason-2".MARINE GEODESY 41.6(2018):632-648.