气候变化领域集成服务门户(CCPortal): Validation and Calibration of Nadir SWH Products From CFOSAT and HY-2B With Satellites and In Situ Observations

CCPortal

DOI	10.1029/2020JC016689
	Validation and Calibration of Nadir SWH Products From CFOSAT and HY-2B With Satellites and In Situ Observations
	Li X.; Xu Y.; Liu B.; Lin W.; He Y.; Liu J.
发表日期	2021
ISSN	21699275
卷号	126 期号:2
英文摘要	The China France Oceanography Satellite (CFOSAT) and Haiyang-2B (HY-2B) satellites were successively launched in China on the 29th and 25th of October 2018, respectively. HY-2 B carries the second Chinese radar altimeter along with three other microwave sensors, whereas CFOSAT contains the first Surface Waves Investigation and Monitoring (SWIM) instrument and a fan beam rotating scatterometer. As missions for measuring the dynamic marine environment, both satellites can measure the nadir significant wave height (SWH). For data obtained from a newly launched satellite to be utilized with confidence, the quality of SWH from the two satellites requires validation. In this study, the HY-2B altimeter and CFOSAT nadir SWHs have been validated against the National Data Buoy Center (NDBC) buoys and the Jason-3 altimeter SWH data, respectively, which resulted in CFOSAT nadir SWH having the best accuracy and HY-2B having the best precision. The SWHs of the two missions are also calibrated by Jason-3 and NDBC buoys. Following calibration, the root mean square error (RMSE) of CFOSAT and HY-2B are 0.21 and 0.27 m, respectively, when compared to Jason-3, and 0.23 and 0.30 m, respectively, compared to the buoys. Our results show that the two missions can provide good-quality SWH and can be relied upon as a new data resource of global SWH. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Calibration; CFOSAT; HY-2B; SWH; Validation
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186477
作者单位	School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, China; National Satellite Ocean Application Service, Ministry of Natural Resources, Beijing, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China; Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing, China
推荐引用方式 GB/T 7714	Li X.,Xu Y.,Liu B.,et al. Validation and Calibration of Nadir SWH Products From CFOSAT and HY-2B With Satellites and In Situ Observations[J],2021,126(2).
APA	Li X.,Xu Y.,Liu B.,Lin W.,He Y.,&Liu J..(2021).Validation and Calibration of Nadir SWH Products From CFOSAT and HY-2B With Satellites and In Situ Observations.Journal of Geophysical Research: Oceans,126(2).
MLA	Li X.,et al."Validation and Calibration of Nadir SWH Products From CFOSAT and HY-2B With Satellites and In Situ Observations".Journal of Geophysical Research: Oceans 126.2(2021).