Abstract
Satellite altimeter needs to be calibrated to evaluate the accuracy of sea surface height data. The dedicated altimeter calibration field needs to establish a special calibration strategy and needs to evaluate its calibration ability. This paper describes absolute calibration of HY-2B altimeter SSH using the GPS calibration method at the newly Wanshan calibration site, located in the Wanshan Islands, China. There are two HY-2B altimeter passes across the Wanshan calibration site. Pass No. 362 is descending and the ground track passes the east of Dan’gan Island. Pass No. 375 is ascending and crosses the Zhiwan Island. The GPS data processing strategy of Wanshan calibration site was established and the accuracy of GPS calibration method of Wanshan calibration site was evaluated. Meanwhile, the processing strategies of the HY-2B altimeter for the Wanshan calibration site were established, and a dedicated geoid model data were used to benefit the calibration accuracy. The time-averaged HY-2B altimeter bias was approximately 2.12 cm with a standard deviation of 2.08 cm. The performance of the HY-2B correction microwave radiometer was also evaluated in terms of the wet troposphere path delay and showed a mean difference −0.2 cm with a 1.4 cm standard deviation with respect to the in situ GPS radiosonde.
Similar content being viewed by others
References
Bonnefond P, Exertier P, Laurain O, et al. 2003a. Absolute calibration of Jason-1 and TOPEX/Poseidon altimeters in Corsica. Marine Geodesy, 26(3–4): 261–284
Bonnefond P, Exertier P, Laurain O, et al. 2003b. Leveling the Sea surface using a GPS-catamaran. Marine Geodesy, 26(3–4): 319–334
Bonnefond P, Exertier P, Laurain O, et al. 2010. Absolute calibration of Jason-1 and Jason-2 altimeters in Corsica during the formation flight phase. Marine Geodesy, 33(S1): 80–90
Bonnefond P, Exertier P, Laurain O, et al. 2015. SARAL/AltiKa absolute calibration from the multi-mission Corsica facilities. Marine Geodesy, 38(S1): 171–192
Bonnefond P, Exertier P, Laurain O, et al. 2017. Corsica: a multi-mission absolute calibration site. In: Proceedings of 2017 OSTST Meeting. La Miami, USA: OSTST
Bonnefond P, Exertier P, Laurain O, et al. 2018. Calibrating the SAR SSH of Sentinel-3A and CryoSat-2 over the Corsica Facilities. Remote Sensing, 10(1): 92
Brown S. 2010. A novel near-land radiometer wet path-delay retrieval algorithm: application to the Jason-2/OSTM advanced microwave radiometer. IEEE Transactions on Geoscience and Remote Sensing, 48(4): 1986–1992, doi: https://doi.org/10.1109/TGRS.2009.2037220
Brown S, Ruf C, Keihm S, et al. 2004. Jason microwave radiometer performance and on-orbit calibration. Marine Geodesy, 27(1–2): 199–220
Cancet M, Bijac S, Chimot J, et al. 2013. Regional in situ validation of satellite altimeters: calibration and cross-calibration results at the Corsican sites. Advances in Space Research, 51(8): 1400–1417, doi: https://doi.org/10.1016/j.asr.2012.06.017
Chen Chuntao. 2010. Using muti-sensor satellite data to study the variability of Kuroshio (in Chinese) [dissertation]. Qingdao: Ocean University of China
Chen Chuntao, Zhai Wanlin, Yan Longhao, et al. 2014. Assessment of the GPS buoy accuracy for altimeter sea surface height calibration. In: Proceedings of 2014 IEEE Geoscience and Remote Sensing Symposium. Quebec: IEEE, 3101–3104
Chen Chuntao, Zhu Jianhua, Zhai Wanlin, et al. 2019. Absolute calibration of HY-2A and Jason-2 Altimeters for sea surface height using GPS buoy in Qinglan, China. Journal of Oceanology and Limnology, 37(5): 1533–1541, doi: https://doi.org/10.1007/s00343-019-8216-8
CLS. 2013. Jason-2 validation and cross calibration activities (Annual report 2012). http://www.aviso.altimetry.fr/fileadmin/documents/calval/validation_report/J2/annual_report_j2_2012.pdf [2013-03-26]
Estey L, Wier S. 2013. Teqc tutorial basics of teqc use and teqc products. Boulder: UNAVCO
Frappart F, Roussel N, Biancale R, et al. 2015. The 2013 Ibiza calibration campaign of Jason-2 and SARAL altimeters. Marine Geodesy, 38(S1): 219–232, doi: https://doi.org/10.1080/01490419.2015.1008711
Fu L L, Cazenave A. 2001. Satellite Altimetry and Earth Sciences: A Handbook of Techniques and Applications. San Diego: Academic Press, 407–435
Haines B J, Desai S D, Born G H. 2010. The harvest experiment: calibration of the climate data record from TOPEX/Poseidon, Jason-1 and the ocean surface topography mission. Marine Geodesy, 33(S1): 91–113
Haines B, Desai S, Dodge A, et al. 2019. The harvest experiment: new results from the platform and moored GPS buoys. In: Proceedings of 2019 Ocean Surface Topography Science Team Meeting. Chicago, USA: OSTST. https://meetings.aviso.altimetry.fr/fileadmin/user_upload/2019/CVL_02_calval_harv_haines.pdf
Haines B, Desai S, Shah R, et al. 2016. The Harvest experiment: connecting Jason-3 to the long-term sea level record. In: Proceedings of Ocean Surface Topography Science Team Meeting 2016. La Rochelle, France. https://meetings.aviso.altimetry.fr/filead-min/user_upload/tx_ausyclsseminar/files/CVL_02_Haines_harvest_14h15.pdf
Herring T A. 2002. TRACK GPS Kinematic Positioning Program, Version 1.07. Massachusetts: Massachusetts Institute of Technology
Herring T A, King R W, Folyd M A, et al. 2018a. GPS Analysis at MIT Release 10.7. Cambridge: Massachusetts Institute of Technology
Herring T A, King R W, Floyd M A, et al. 2018b. Introduction to GAM-IT/GLOBK Release 10.7. Cambridge: Massachusetts Institute of Technology
Keihm S J, Janssen M A, Ruf C S. 1995. TOPEX/Poseidon microwave radiometer (TMR). III. Wet troposphere range correction algorithm and pre-launch error budget. IEEE Transactions on Geoscience and Remote Sensing, 33(1): 147–161, doi: https://doi.org/10.1109/36.368213
King R W, Bock Y. 2005. Documentation for the GAMIT GPS analysis software, release 10. Cambridge: Massachusetts Institute of Technology
Lin Mingsen, He Xianqiang, Jia Yongjun, et al. 2019. Advances in marine satellite remote sensing technology in China. Haiyang Xuebao, 41(10): 99–112, doi: https://doi.org/10.3969/j.issn.0253-4193.2019.10.006
Ma Yue, Xu Nan, Liu Zhen, et al. 2020. Satellite-derived bathymetry using the ICESat-2 lidar and Sentinel-2 imagery datasets. Remote Sensing of Environment, 250: 112047, doi: https://doi.org/10.1016/j.rse.2020.112047
Mertikas S P, Donlon C, Féménias P, et al. 2018. Fifteen years of Cal/Val Service to reference altimetry missions: calibration of satellite altimetry at the permanent facilities in Gavdos and Crete, Greece. Remote Sensing, 10(10): 1557, doi: https://doi.org/10.3390/rs10101557
Mertikas S P, Donlon C, Mavrocordatos I N, et al. 2016. Gavdos/West Crete Cal-val site: Over a decade calibrations for altimetry. In: Proceedings of 2016 Ocean Surface Topography Science Team Meeting. La Rochelle, France: Centre national d’études spatiales
Mertikas S P, Ioannides R T, Tziavos I N, et al. 2010. Statistical models and latest results in the determination of the absolute bias for the radar altimeters of Jason satellites using the Gavdos facility. Marine Geodesy, 33(S1): 114–149
Watson C, Coleman R, White N, et al. 2003. Absolute calibration of TOPEX/Poseidon and Jason-1 using GPS buoys in Bass Strait, Australia. Marine Geodesy, 26(3–4): 285–304
Watson C, Legresy B, Beardsley J, et al. 2019. Absolute altimeter bias results from Bass Strait, Australia. In: Proceedings of 2019 OSTST Meeting. Chicago, USA: OSTST
Watson C, Legresy B, King M, et al. 2016. Altimeter absolute bias estimates from Bass Strait, Australia. In: Proceedings of 2016 Ocean Surface Topography Science Team Meeting. La Rochelle, France: Centre national d’études spatiales
Watson C, White N, Church J, et al. 2011. Absolute calibration in Bass Strait, Australia: TOPEX, Jason-1 and OSTM/Jason-2. Marine Geodesy, 34(3–4): 242–260
Zhai Wanlin, Zhu Jianhua, Ma Chaofei, et al. 2020. Measurement of the sea surface using a GPS towing-body in Wanshan area. Acta Oceanologica Sinica, 39(5): 123–132, doi: https://doi.org/10.1007/s13131-020-1599-8
Zheng Gang, Yang Jingsong, Ren Lin. 2014. Retrieval models of water vapor and wet tropospheric path delay for the HY-2A calibration microwave radiometer. Journal of Atmospheric and Oceanic Technology, 31(7): 1516–1528, doi: https://doi.org/10.1175/JTECH-D-14-00005.1
Acknowledgements
We thank Youguang Zhang, Zhenzhan Wang, Bonnefond P, Xiyu Xu, Hua Shen, Zengrui Rong, Yanlong Liu, Xiaoxu Zhang and Qian Zhang for useful discussions. We also thank the NSOAS of MNR for providing HY-2B RA IGDR data. We thank Michael Luetchford, BTech, from Liwen Bianji, Edanz Group China (www.liwenbianji.cn/ac), for editing the English text of a draft of this manuscript.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item
The National Key R&D Program of China under contract Nos 2018YFB0504900 and 2018YFB0504904; the National Natural Science Foundation of China under contract Nos 41406204 and 41501417; the Operational Support Service System for Natural Resources Satellite Remote Sensing under contract No. 180019.
Rights and permissions
About this article
Cite this article
Chen, C., Zhu, J., Ma, C. et al. Preliminary calibration results of the HY-2B altimeter’s SSH at China’s Wanshan calibration site. Acta Oceanol. Sin. 40, 129–140 (2021). https://doi.org/10.1007/s13131-021-1745-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13131-021-1745-y