by Laurent Roblou — last modified Apr 23, 2012 01:55 PM

Observations influence in the model error subspace can be decreased using decorrelation functions. The data assimilation code provide users with a large range of isotropic functions for this purpose.


The following lines describes the shape functions collection.



  • linear function:



  • step function: R-STEP



  • spherical function:



  • sinusoidal function:


  • exponential function class


  • Gaussian functions class:

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