Retrospective gradient factors on real dives
Willem Ferguson
willemferguson at zoology.up.ac.za
Mon Dec 12 09:52:00 PST 2016
On 10/12/2016 21:40, Anton Lundin wrote:
> On 10 December, 2016 - Robert Helling wrote:
>
>> Hi,
>>
>>> Am 10.12.2016 um 00:08 schrieb Anton Lundin <glance at acc.umu.se>:
>>>
>>> My quick experiment showed that with 2s sample rate its just to much
>>> noise to actually see anything. 10s sample rate isn't really there
>>> either. I think the value needs some smoothing, like a running average
>>> or something to make sense.
>>>
>>> I'm too tired to hack that up right now, but if you would like to do it,
>>> be my guest.
>> I continued on you experiment. I changed your code to
>>
>>
>>
>> Then I ListPlot these values in mathematica:
>>
>>
>>
>> I think this is quite an interesting plot (x axis is depth, y axis momentary gf) for one of my dives. Put it also shows that this is clearly not linear, not even the last bit, the ascent from say 20m. I would love to see this for some of your dives. Would you mind mailing me some sample xml’s with interesting deco profile?
>>
> The plot for a deco dive looks about the same, with more noise in the
> end part.
>
>
> //Anton
>
Anton and Robert,
Are you by any chance prepared to send me a few dives as Subsurface XML
and which I could use as test cases for calculating retrospective GFs?
Kind regards,
willem
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