Temps from Suunto Cobra

[Dirk Hohndel]

On Sat, Nov 22, 2014 at 08:19:00PM -0800, Steve Butler wrote:
> Subsurface (or maybe libdiv) takes the "first temp" and calls it the Air
> temp.  DM3 calls it "Start of Dive".  Looking at the values for that day I'm
> surmising the temp is of the DC as it cools down in the water.  Air temp
> that day was in low 80s.  DM3 recorded 63 for the start, 54 for max depth
> and 55 for end of dive.  Looking at the profile from DM3 looks like 63 is
> from the first 10 second recording. Nothing in the DM3 profile until max
> depth.  54 temp repeated for every entry at max depth.   Then nothing until
> the last entry at depth (7 feet) which showed 55.

Yes, that's how many Suunto dive computers operate.

This is indeed Subsurface mis-labeling the temperatures we're getting from
libdivecomputer. But the thing is, for many other dive computers this
works just as we use it... the first temperature were closely matches the
surface temperature...

/D