Index: ../trunk-jpl/src/c/classes/Elements/Tria.cpp
===================================================================
--- ../trunk-jpl/src/c/classes/Elements/Tria.cpp	(revision 18966)
+++ ../trunk-jpl/src/c/classes/Elements/Tria.cpp	(revision 18967)
@@ -11,6 +11,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <math.h>
 #include "../classes.h"
 #include "../../shared/shared.h"
 #ifdef _HAVE_GIA_
@@ -311,6 +312,7 @@
 		if(calvingrate[iv]<0){
 			calvingrate[iv]=0;
 		}
+		calvingrate[iv]=pow(calvingrate[iv],0.3);
 		calvingratex[iv]=calvingrate[iv]*vx/(sqrt(vel)+1.e-14);
 		calvingratey[iv]=calvingrate[iv]*vy/(sqrt(vel)+1.e-14);
 	}
