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Export water table time series data from periodic Richards equation solution

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Hi,

is there an (easy) way to export a time series of the water table elevation (p=0 contour) from a time-dependent (periodic) Richards equation model?

I have a 2D vertical rectangular grid with a periodic boundary condition at one end which drives a pressure wave through the porous media domain and I would like to analyse the characteristics of the water table fluctuations as a function of x and t. At present, I am using mphinterp via the Matlab interface to access the spatio-temporal grid of the pressure distribution from the solution and then interpolating using Matlab to find the watertable, wt(x,t). This is a bit cumbersome and I am wondering if it can be generated as part of the Comsol result processing? It seems I can only export the p=0 contour for a single time step (?)

Any ideas would be appreciated.

Cheers,
Nick

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