A estimation of the maximu stream time step which is more realistic.

GraphHydro.py

@@ -277,7 +277,7 @@ class HydroGraph :
             ncvar.units = "count"
             ncvar[:] = thist[:]
             #
-            maxtstep = weighted_quantile(gvar[~np.isnan(gvar)]*usedtcst, 0.50, sample_weight=garea[~np.isnan(gvar)])
+            maxtstep = weighted_quantile(gvar[~np.isnan(gvar)]*usedtcst, 0.25, sample_weight=garea[~np.isnan(gvar)])
             mtstep = outnf.createVariable("MaxTimeStep"+addname, vtyp, ('dimpara'), fill_value=NCFillValue)
             if addname.lower() == "stream" :
                 mtstep.title = "Maximum time-step for stream reservoir of HTUs"