There are a couple of problems with the p2g default units for ice products. AWIPS is expecting something else...
For IceSrfTemp the default is data:units = "Kelvin(K)" and it should be "kelvin"
For IceThickness the default is data:units = "meter" and it should be "meters".
Is there a way to alter the units in a lookup file? I have a couple scripts that I've been using to make the change.