Temps from Suunto Cobra

[Steve Butler]

On 11/24/2014 06:55 AM, Dirk Hohndel wrote:
> 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
>
Surface air or surface water?