WANG Tianyu, PAN Delu, HE Xianqiang, WANG Difeng. Wind vector retrieval algorithm from spaceborne lidar data[J]. Acta Oceanologica Sinica, 2014, 33(3): 129-135. doi: 10.1007/s13131-014-0448-z
Citation: WANG Tianyu, PAN Delu, HE Xianqiang, WANG Difeng. Wind vector retrieval algorithm from spaceborne lidar data[J]. Acta Oceanologica Sinica, 2014, 33(3): 129-135. doi: 10.1007/s13131-014-0448-z

Wind vector retrieval algorithm from spaceborne lidar data

doi: 10.1007/s13131-014-0448-z
  • Received Date: 2013-10-11
  • Rev Recd Date: 2014-02-10
  • The principal purpose of this paper is to extract entire sea surface wind's information from spaceborne lidar, and particularly to utilize a appropriate algorithm for removing the interference information due to whitecaps and subsurface water. Wind speeds are obtained through empirical relationship with sea surface mean square slopes. Wind directions are derived from relationship between wind speeds and wind directions implied in CMOD5n geophysical models function (GMF). Whitecaps backscattering signals were distinguished with the help of lidar depolarization ratio measurements and rectified by whitecaps coverage equation. Subsurface water backscattering signals were corrected by means of inverse distance weighted (IDW) from neighborhood non-singular data with optimal subsurface water backscattering calibration parameters. To verify the algorithm reliably, it selected NDBC's TAO buoy-laying area as survey region in camparison with buoys' wind field data and METOP satellite ASCAT of 25 km single orbit wind field data after temporal-spatial matching. Validation results showed that the retrieval algorithm works well in terms of root mean square error (RMSE) less than 2m/s and wind direction's RMSE less than 21 degree.
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  • Barrick D E. 1968. Rough surface scattering based on the specula point theory. IEEE Antennas & Propag, 16 (4): 449-454
    Bufton J K, Hoge F E, Swfit R N. 1983. Airborne measurements of laser backscatter from the ocean surface. Appl Opt, 22(17): 2603-2618
    Cox C, Munk W. 1954. Measurement of the roughness of the sea surface from photographs of the sun's glitter. J Opt Spc Am, 14 (11): 838-850
    Callaghan A H, White M. 2009. Automated processing of sea surface images for the determination of whitecap coverage. Atoms Oceanic Technology, 26: 383-394
    David M. Winker et al. 2006. CALIOP algorithm theoretical basis document. http://www-calipso.larc.nasa.gov/resources/pdfs/PC-SCI-202.Part1_v2-Overview.pdf [2006-09-09/2013-06-14]
    Fung A, Khim Lee. 1982. A semi-empirical seam spectrum model for scattering coefficient estimation. IEEE Oceanic Engineering Society, 7 (4): 166-176
    Hersbach H, Stoffelen A, Haan S de. 2007. An improved C-band scatterometer ocean geophysical model function: CMOD5. Geophys Res, 112: C03006
    Hu Y, Stamnes K, Vaughan M, et al. 2008. Sea surface wind speed estimation from space-based lidar measurements. Atoms Chem Phys, 8: 3593-3601
    Jia Jia. 2011. Sea surface wind speed inversion based on CALIPSO aerosol production [dissertation]. Qingdao: Ocean university of China, 40
    Kodis R. 1996. A note on the theory of scattering from an irregular surface. IEEE Trans. Antennas & Propag, 14 (1): 77-82
    Lancaster R S, Spinhirne J D, Palm S P. 2005. Laser pulse reflectance of the ocean surface from the GLAS satellite lidar. Geophs Res Lett, 32(22): L22S10
    Li Yanchu, Sun Ying, Lin Mingsen et al. 1999. Resolving directional ambiguities for scatterometer derived winds by a circular median filter algorithm. Journal Of Oceanography In Taiwan Strait, 1 (18): 43-45
    Menzies R T, Tratt D M, Hunt W H. 1998. Lidar in-space technology experiment measurements of sea surface directional reflectance and the link to surface wind speed. Appl Opt, 37 (24): 5550-5559
    Peter Koepke. 1984. Effective reflectance of oceanic whitecaps. Appl Opt, 23 (11): 1816-1824
    Wu Dong, Zhang Xiaoxue, Yan Fengqi, et al. 2012. Sea surface wind speed detection by using the data of CALIPSO lidar. Acta Optica Sinica (in Chinese), 32 (8): 1-6
    Wu J. 1972. Sea-surface slope and equilibrium wind wave spectra. Phys Fluids, 15: 741-747
    Zhang Xiaoxue. 2012. Research of the accuracy improvement of sea surface wind speed estimation from space-based lidar measurements [dissertation]. Qingdao: Ocean university of China, 35
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