This function starts a browser-based graphic user interface to explore the
parameter space of seismic models that predict the spectra of turbulent
water flow and bedload flux. Empirical spectra can be added if they are
present in the current environment as eseis objects. Note that those
spectra should be made from deconvolved input data in order to have the
same units as the model spectra (dB). ATTENTION, due to an unresolved
issue, there must be at least one eseis object present in the working
environment.