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RE: [ai-geostats] interpolating along lines and .... THANK YOU!

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  • R├╝haak, Wolfram
    Hi Monica, ... What about a spline interpolation? Look for instance at http://www.csit.fsu.edu/~burkardt/cpp_src/spline/spline.html There is also a matlab
    Message 1 of 2 , Jan 5, 2006
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      Hi Monica,

      > -----Original Message-----
      > From: Monica Palaseanu-Lovejoy [mailto:mpal_lovejoy@...]
      > Hi list,
      > [...]
      > I have a network of canals and few water stations along them.
      > Knowing that
      > the flow gradient along canals is very small and water levels
      > are varying
      > very smoothly, how can I interpolate along canals at set
      > distances, for
      > example? I guess i need a very simple algorithm like at mid
      > distance in
      > between 2 stations i will have the average values of those 2
      > stations, and
      > so on. I wonder if you know about any software to do this
      > automatically.
      >
      > Thank you for your assistance once more,
      >
      > Monica
      > [...]

      What about a spline interpolation?

      Look for instance at http://www.csit.fsu.edu/~burkardt/cpp_src/spline/spline.html

      There is also a matlab version.

      However, splines are sometimes hard to use for extrapolation purposes.

      A simple inverse distance weighting method could also be used.

      I think the most difficult part is the fusion and segregation within a network of canals?

      Isn't there specialised software available (do you know http://www.dhisoftware.com).

      HTH, cheers Wolfram
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