Preliminary assessment of the quality of HY-2A satellite sea surface height data

Yang Guang; Song Qingtao; Jiang Xinwei; Wang Zhaohui

doi:10.3969/j.issn.0253-4193.2016.11.008

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Yang Guang, Song Qingtao, Jiang Xinwei, Wang Zhaohui. Preliminary assessment of the quality of HY-2A satellite sea surface height data[J]. Haiyang Xuebao, 2016, 38(11): 90-96. doi: 10.3969/j.issn.0253-4193.2016.11.008

Citation:

Yang Guang, Song Qingtao, Jiang Xinwei, Wang Zhaohui. Preliminary assessment of the quality of HY-2A satellite sea surface height data[J]. Haiyang Xuebao, 2016, 38(11): 90-96. doi: 10.3969/j.issn.0253-4193.2016.11.008

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Preliminary assessment of the quality of HY-2A satellite sea surface height data

doi: 10.3969/j.issn.0253-4193.2016.11.008

National Satellite Ocean Application Service, Beijing 100081, China;Key Laboratory of Ocean Space Remote Sensing and Application, State Oceanic Administration, Beijing 100081, China

Received Date: 2015-05-16
Rev Recd Date: 2015-09-05

Abstract

Abstract

The HY-2A radar altimeter effective measurements of the sea surface height (SSH) were selected using the IGDR editorial criteria. The crossover points of HY-2A satellite SSH data from cycle 18 to 23 and Jason-2 data within 5 days were determined. The erroneous measurement orbits were removed based on crossover statistics of HY-2A and Jason-2. The quality of the HY-2A SSH data is evaluated using statistics of crossover difference analysis. The cross calibration results show that the number of HY-2A data points removed by the editorial criteria is about 12% of the total HY-2A SSH observations. It is found in this study the standard deviation of SSH between HY-2A satellite and Jason-2 is 7.0 cm for the HY-2A cycles used in this study, and the accuracy of SSH measurements of HY-2A meets the requirements of sensor design.
- HY-2A,
- radar altimeter,
- sea surface height,
- HY-2A quality assessment

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References(13)

References

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