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Quality analysis of sea level height data of HY-2C satellite
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Ju Meng1, Fangjie Yu1, 2, *, Zhiyuan Zhuang1, Juanjuan Qi1, Ge Chen1, 2
Haiyang Xuebao | 2022, 44(10) : 173 - 181
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Haiyang Xuebao | 2022, 44(10): 173-181
• Article •
Quality analysis of sea level height data of HY-2C satellite
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Ju Meng1, Fangjie Yu1, 2, *, Zhiyuan Zhuang1, Juanjuan Qi1, Ge Chen1, 2
Affiliations
  • 1. Department of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
  • 2. Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
Published: 2022-10-01 doi: 10.12284/hyxb2022168
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As an important part of monitoring oceanic phenomenon, it is essential to calibrate altimeter sea level height data. In 2020, the Haiyang-2C (HY-2C) satellite was sent to orbit as a follow-up mission of the HY-2B satellite. However, the quality of HY-2C sea level height is not fully known yet. In this paper, the quality and accuracy of HY-2C sensor geophysical data records (SGDR) of the latest version were assessed through the comparison with the HY-2B geophysical data records (GDR) and Jason-3 GDR measured at the same time. According to the results: self-crossover points analysis is carried out by star cross calibration of HY-2C satellite. The quality analysis results of sea level anomaly data of HY-2C SGDR are different. Through the comparison results, the optimal cubic spline interpolation method has the best quality analysis performance, with mean value is 0.03 cm and the standard deviation is 6.17 cm. The mean and standard deviation of sea level anomaly at the dual-crossing calibration of HY-2C and HY-2B satellites are −0.47 cm and 5.32 cm. The mean and standard deviation of sea level anomaly at the intersection of HY-2C and Jason-3 satellites are −0.3 cm and 5.32 cm. These results show that HY-2C has the same precision as HY-2B satellite and Jason-3 satellite. Data quality of HY-2C satellite is enough to meet the requirements of marine scientific research and application.

HY-2C satellite  /  altimeter  /  sea level height  /  crossover analysis
Ju Meng, Fangjie Yu, Zhiyuan Zhuang, Juanjuan Qi, Ge Chen. Quality analysis of sea level height data of HY-2C satellite[J]. Haiyang Xuebao, 2022 , 44 (10) : 173 -181 . DOI: 10.12284/hyxb2022168
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Year 2022 volume 44 Issue 10
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Article Info
doi: 10.12284/hyxb2022168
  • Receive Date：2022-05-04
  • Online Date：2026-02-01
  • Published：2022-10-01
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  • Received：2022-05-04
  • Revised：2022-06-06
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Affiliations
    1. Department of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
    2. Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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