YE Xiaomin, LIN Mingsen, XU Ying. Validation of Chinese HY-2 satellite radar altimeter significant wave height[J]. Acta Oceanologica Sinica, 2015, 34(5): 60-67. doi: 10.1007/s13131-015-0667-y
Citation: YE Xiaomin, LIN Mingsen, XU Ying. Validation of Chinese HY-2 satellite radar altimeter significant wave height[J]. Acta Oceanologica Sinica, 2015, 34(5): 60-67. doi: 10.1007/s13131-015-0667-y

Validation of Chinese HY-2 satellite radar altimeter significant wave height

doi: 10.1007/s13131-015-0667-y
  • Received Date: 2014-11-27
  • Rev Recd Date: 2015-01-29
  • Chinese Haiyang-2(HY-2) satellite is the first Chinese marine dynamic environment satellite. The dual-frequency (Ku and C band) radar altimeter onboard HY-2 has been working effective to provide operational significant wave height (SWH) for more than three years (October 1, 2011 to present).We validated along-track Ku-band SWH data of HY-2 satellite against National Data Buoy Center (NDBC) in-situ measurements over a time period of three years from October 1, 2011 to September 30, 2014, the root mean square error (RMSE) and mean bias of HY-2 SWH is 0.38 m and (-0.13±0.35) m, respectively. We also did cross validation against Jason-2 altimeter SWH data,the RMSE and the mean bias is 0.36m and (-0.22±0.28) m, respectively. In order to compare the statistical results between HY-2 and Jason-2 satellite SWH data, we validated the Jason-2 satellite radar altimeter along-track Ku-band SWH data against NDBC measurements using the same method. The results demonstrate the validation method in this study is scientific and the RMSE and mean bias of Jason-2 SWH data is 0.26 m and (0.00±0.26) m, respectively. We also validated both HY-2 and Jason-2 SWH data every month, the mean bias of Jason-2 SWH data almost equaled to zero all the time, while the mean bias of HY-2 SWH data was no less than -0.31m before April 2013 and dropped to zero after that time. These results indicate that the statistical results for HY-2 altimeter SWH are reliable and HY-2 altimeter along-track SWH data were steady and of high quality in the last three years. The results also indicate that HY-2 SWH data have greatly been improved and have the same accuracy with Jason-2 SWH data after April, 2013. SWH data provided by HY-2 satellite radar altimeter are useful and acceptable for ocean operational applications.
  • loading
  • Abdalla S, Janssen P, Bidlot J. 2008. Jason-2 wind and wave products: monitoring, validation and assimilation. OSTST Meeting, Nice, 9-12
    Chen Ge. 1999. Onretrieving sea surface wind speed from satellite al-timeters: model functions and an application case. Journal of Remote Sensing (in Chinese), 3(4): 305-311
    Chen Ge, Fang Chaoyang, Xu Ping. 1999. Using a dual-frequency ad-justment approach to improve the accuracy of altimeter re-trieved sea surface wind speed. Journal of Image and Graphics (in Chinese), 4(11): 970-975
    Chen Qinglian, Tang Junwu, Wang Xiangnan. 1998. Review on the calibration and validation for ocean color sensing. Ocean Tech-nology (in Chinese), 17(3): 13-26
    Chen Chuntao, Zhu Jianhua, Lin Mingsen, et al. 2013. The validation of the significant wave height product of HY-2 altimeter-primary results. Acta Oceanologica Sinica, 32(11): 82-86
    Cheng Yongcun, Xu Qing, Liu Yuguang, et al. 2008. Verification and comparison of wind speed and signifficant wave height from TOPEX/Poseidon and Jason-1. Journal of Geodesy and Geody-namics (in Chinese), 28(6): 117-122
    Cotton P D, Carter D J T. 1994. Cross calibration of TOPEX, ERS-I, and Geosat wave heights. Journal of Geophysical Research, 99(C12): 25025-25033
    Dumont J, Rosmorduc V, Picot N, et al. 2008. OSTM/Jason-2 Products Handbook. 1 rev 2. CNES: SALP-MU-M-OP-15815-CN; EU-METSAT: EUM/OPS-JAS/MAN/08/0041; JPL: OSTM-29-1237; NOAA/NESDIS: Polar Series/OSTMJ400
    DurrantT H, Greenslade J M, Simmonds I. 2009. Validation of Jason-1 and Envisatremotely sensed wave heights. Journal of Atmo-spheric and Oceanic Technology, 26(1): 123-134
    Jiang Xingwei, Lin Mingsen, Liu Jianqiang, et al. 2012. The HY-2 satel-lite and its preliminary assessment. International Journal of Di-gital Earth, 5(3): 266-281
    Korobkin M, D'Sa E. 2008. Significant wave height in the Gulf of Mex-ico: validation of jason-1 measurement against buoy data. In: 12th Conference on Integrated Observing and Assimilation Sys-tems for the Atmosphere, Oceans, and Land Surface ( IOAS-AOLS). New Orleans, USA: American Meteorological Society
    Queffeulou P. 2003. Long-term quality status of wave height and wind speed measurements from satellite altimeters. In: Proceedings of the 13th International Offshore and Polar Engineering Con-ference. Hawaii, USA: the International Society of Offshore and Polar Engineers
    Wang Jichao, Zhang Jie, Yang Jungang. 2013. The validation of HY-2 altimeter measurements of a significant wave height based on buoy data. Acta Oceanologica Sinica, 32(11): 87-90
    Xu Guangjun, Yang Jingsong, Xu Yuan, et al. 2013. The data fusion of the significant wave height measured with “HY-2” satellite alti-meter. Haiyang Xuebao (in Chinese), 35(4): 208-213
    Xu Guangjun, Yang Jinsong, Xu Yuan, et al. 2014. Validation and cal-ibration of significant wave height from HY-2 satellite altimeter. Journal of Remote Sensing, 18(1): 206-214
    Ye Xiaomin, Lin Mingsen, Song Qingjun. 2014. Research on valida-tion methods of satellite radar altimeter retrieved sea surface wind speed and significant wave height using in-situ data. Re-mote Sensing Technology and Application (in Chinese), 29(1): 26-32
    Zhang Renhua, Tian Jing, Li Zhaoliang, et al. 2010. Principles and methods for the validation of quantitative remote sensing products. Science China Earth Sciences, 53(5): 741-751
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1567) PDF downloads(1378) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return