A PRELIMINARY IN SITU CALIBRATION FOR HY-2A SATELLITE ALTIMETER

	A PRELIMINARY IN SITU CALIBRATION FOR HY-2A SATELLITE ALTIMETER
	Liu, Yalong; Xu, Ke; Song, Yang; Zhang, Youguang
	2016
会议名称	36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 10-15, 2016
会议地点	Beijing, PEOPLES R CHINA
关键词	HY-2A altimeter absolute Calibration Sea level
页码	5831-5834
通讯作者	Liu, YL (reprint author), State Ocean Adm, Yantai Marine Environm Monitoring Ctr Stn, Yantai, Peoples R China.
英文摘要	Since the launch, HY-2A has observing global ocean dynamic environment data over the last 5 years including sea surface height (SSH), significant wave height (SWH) and corresponding auxiliary data (wind fields and water vapor). The in-orbit validation and crossover comparison of which suggest that the various technical indicators cater for basic needs in practicality. However, for the most important ocean dynamic environment parameter SSH, the accurate, reliable and standard processing for absolute calibration has not achieved yet, significantly limiting quantitative application of altimetry production. To evaluate the accuracy of HY-2A, we perform absolute calibration at California offshore Harvest Oil Platform. HY-2A interim geophysical dataset records ( IGDR) are used to perform comparison. All corrections are estimated independently avoiding instruments aging. According to results, there are two significant linear trends for HY-2A derived SSHs consisting of -0.001083m/day for cycle 1 similar to 99 and 0.001475m/day afterward. The results indicate that HY-2A observations are low by -40.5 +/- 1.2 cm.
收录类别	CPCI
会议录	2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
语种	英语
ISSN号	2153-6996
ISBN号	978-1-5090-3332-4
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/5768]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Liu, Yalong,Xu, Ke,Song, Yang,et al. A PRELIMINARY IN SITU CALIBRATION FOR HY-2A SATELLITE ALTIMETER[C]. 见:36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Beijing, PEOPLES R CHINA. JUL 10-15, 2016.