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题名: A PRELIMINARY IN SITU CALIBRATION FOR HY-2A SATELLITE ALTIMETER
作者: Liu, Yalong; Xu, Ke; Song, Yang; Zhang, Youguang
作者部门: 微波遥感部
通讯作者: Liu, YL (reprint author), State Ocean Adm, Yantai Marine Environm Monitoring Ctr Stn, Yantai, Peoples R China.
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
会议录: 2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
出版日期: 2016
收录类别: CPCI
页码: 5831-5834
ISSN号: 2153-6996
ISBN号: 978-1-5090-3332-4
关键词: HY-2A altimeter ; absolute Calibration ; Sea level
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.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.nssc.ac.cn/handle/122/5768
Appears in Collections:微波遥感部_会议论文

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