Actually, thinking about it futher, G-SPOT is on the money.
I fly the Dash 8, and we have two 'VREF' speeds for a given flap configuration and landing weight - one for icing, one for non-icing conditions. In reality though, the non-icing speed is the actual paper VREF whilst the icing speed is, in reality, an increased VAPP. Where we operate to aerodromes where a increased climb gradient is required in the event of a go-around, we used the icing speed for approach as it'll give us the ability to make the required climb gradient should we need it.