I seem to be more picky than the rest of the universe.

When I say "water" I mean the stuff that goes "glug glug", "pitter patter", "trickle trickle", and which, in favourable circumstances, you can drink. I have never held that "ice" is usefully described as "water".

You will be familiar with my regular arguments with peoiple who read papers about "water" distribution on Mars and then start frothing about liquid water and life. That is one reason for precision in nomenclature when dealing with the phase diagram of H2O.

Water vapour, ice, and (liquid) water are the three common phases of H2O. (there are also a bunch of variant crystalline ices, amorphous ice, supercooled and superheated water, steam, and supercritical steam).

The "purpose" of Marsis is to find the base of the ice. I don't think it will...