Index: /issm/trunk-jpl/src/m/classes/mask.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/mask.py	(revision 15402)
+++ /issm/trunk-jpl/src/m/classes/mask.py	(revision 15403)
@@ -56,3 +56,7 @@
 		WriteData(fid,'object',self,'fieldname','vertexongroundedice','format','DoubleMat','mattype',1)
 		WriteData(fid,'object',self,'fieldname','vertexonwater','format','DoubleMat','mattype',1)
+		icelevelset=numpy.ones(md.mesh.numberofvertices,int)
+		pos=md.diagnostic.icefront[:,0:-1]
+		icelevelset[pos[:]]=0;
+		WriteData(fid,'data',icelevelset,'format','DoubleMat','mattype',1,'enum',IcelevelsetEnum())
 	# }}}