Experiments in Fluids

, Volume 21, Issue 1, pp 43–48 | Cite as

An algorithm for calculating water surface elevations from surface gradient image data

  • X. Zhang


2-D water surface gradient data can be measured by a 2-D gradient detector (Zhang and Cox 1991; Zhang et al. 1993). An algorithm for the reconstruction of water surface elevation from measured surface gradient data is described in some detail. The boundary and noise effects are explored.


Water Surface Image Data Surface Elevation Noise Effect Gradient Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Zhang X; Cox CS (1991) A 2D water surface detector for measuring wave number spectrum of very short waves. EOS Trans Am Geophys Union 72: 276Google Scholar
  2. Zhang X; Dabiri D; Gharib M (1993) A novel technique for freesurface elevation mapping. Bull Amer Phys Soc 38: p2287Google Scholar
  3. Zhang X; Cox CS (1994) Measuring the two dimensional structure of a wavy water surface optically: A surface gradient detector. Exp Fluids 17: 225–237Google Scholar
  4. Zhang X; Dabiri D; Gharib M (1996) Optical mapping of fluid density interfaces: concepts and implementations. Rev Sci Instr 67(5) MayGoogle Scholar
  5. Zhang (1995) Capillary-gravity and capillary waves generated in a wind wave tank: Observations and Theories. Fluid Mech 289: 51–82Google Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • X. Zhang
    • 1
  1. 1.Scripps Institution of Oceanography, 0230 University of CaliforniaSan Diego, La JollaUSA

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