Improved GR4J model

The parameters introduction for the GR4J model has been slightly modified. Until version, the so-called transformed values had to be entered in RS MINERVE. As from version, released today as Beta version (available here), the real values will have to be entered.

The initial choice of using transformed values was based on users recommendations. However, using real values has the considerable advantage of having a physical meaning, for example for the store capacities in meter defined by the parameters X1 and X3. It also allows quick comparison between the parameters and the state variables.

When opening a .rsm model created with previous versions of RS MINERVE, a conversion into the new GR4J model version is proposed to automatically convert the values. Thereby, users will be able to continue working with their already existing models (Warning : once converted, no way back !).