Index: /issm/trunk-jpl/src/c/analyses/HydrologyArmapwAnalysis.cpp
===================================================================
--- /issm/trunk-jpl/src/c/analyses/HydrologyArmapwAnalysis.cpp	(revision 27478)
+++ /issm/trunk-jpl/src/c/analyses/HydrologyArmapwAnalysis.cpp	(revision 27479)
@@ -144,4 +144,10 @@
    }
 
+	/*Check if seasonality is imposed*/
+	bool isseasonality = false;
+	for(int i=0;i<numbasins*12;i++){
+		if(monthlyfactors[i]!=1) isseasonality = true;
+	}
+
 	/*Loop over each element to compute Subglacial Water Pressure at vertices*/
    for(Object* &object:femmodel->elements->objects){
@@ -152,5 +158,5 @@
 		element->SubglacialWaterPressure(FrictionWaterPressureEnum);
 		/*Scale with monthly factors*/
-      element->MonthlyFactorBasin(monthlyfactors,HydrologyarmapwEnum);
+		if(isseasonality) element->MonthlyFactorBasin(monthlyfactors,HydrologyarmapwEnum);
    }