diff --git a/HySoP/hysop/operator/energy_enstrophy.py b/HySoP/hysop/operator/energy_enstrophy.py
index aa31a272026955cea2f1f9ddf5c5b9f8d7f7ddd5..044243e989fe02b5072a0efa0fe703d43d2e0190 100644
--- a/HySoP/hysop/operator/energy_enstrophy.py
+++ b/HySoP/hysop/operator/energy_enstrophy.py
@@ -94,24 +94,23 @@ class Energy_enstrophy(Monitoring):
 
         enstrophy = enstrophy / (2.0 * np.pi) ** 3
 
-        print "enstrophy", enstrophy
         # 1st order
 #        effectiveViscosity = - (energy - self.buffer_1) / (dt * enstrophy)
-#        energyDissipation = - (energy -  self.buffer_1) / dt
+#        timeDerivativeEnergy = - (energy -  self.buffer_1) / dt
 
         # 2nd order
         effectiveViscosity = - (3.0 * energy - 4.0 *
                                 self.buffer_1 + 1.0 * self.buffer_2) / \
             (2.0 * dt * enstrophy)
 
-        energyDissipation = - (3.0 * energy - 4.0 * self.buffer_1 + 1.0 *
+        timeDerivativeEnergy = - (3.0 * energy - 4.0 * self.buffer_1 + 1.0 *
                                self.buffer_2) / (2.0 * dt)
 
         ratio = effectiveViscosity / self.viscosity
 
-        energyDissipation2 = self.viscosity * enstrophy
+        nuEnstrophy = self.viscosity * enstrophy
 
-        energyDissipation3 = effectiveViscosity * enstrophy
+        nu_effEnstrophy = effectiveViscosity * enstrophy
 
         self.buffer_2 = self.buffer_1
         self.buffer_1 = energy
@@ -121,9 +120,9 @@ class Energy_enstrophy(Monitoring):
             self.f.write("%s   %s   %s   %s   %s   %s   %s\n" % (t, energy,
                                                                  enstrophy,
                                                                  ratio,
-                                                                 energyDissipation,
-                                                                 energyDissipation2,
-                                                                 energyDissipation3))
+                                                                 timeDerivativeEnergy,
+                                                                 nuEnstrophy,
+                                                                 nu_effEnstrophy))
             self.f.close()
 
     def __str__(self):