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Thread 'Advanced visualisation now available for BOINC/cp.net'

Thread 'Advanced visualisation now available for BOINC/cp.net'

Message boards : Number crunching : Advanced visualisation now available for BOINC/cp.net
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Message 11705 - Posted: 8 Apr 2005, 8:41:47 UTC
Last modified: 8 Apr 2005, 8:42:14 UTC

You can now download the advanced visualisation package to look at the climate of the worlds you have modelled using BOINC.
http://www.climateprediction.net/AdvancedVisualisation/advancedvisualisation_intro.php

What do you think?

The package is now much more adaptable, thanks to Colin's hard work, so it'll be possible to role out versions to go with new experiments much more easily.

Sylvia
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Message 11725 - Posted: 9 Apr 2005, 18:23:52 UTC

Thanks, this is an interesting package to play around with.

I do have a few of observations after installing it
and playing with it for a while.

Installation:
It failed to auto locate the running CP/BOINC app. [Windows XP, SP2]

The default suggested manual installation directory of;

C:\Program Files\BOINC\projects\www.climateprediction.net

looks correct but does not match the default installed location,
the correct directory was;

C:\Program Files\BOINC\projects\climateprediction.net

If the program is installed with the incorrect directory it is possible to
navigate to the correct directory to view completed projects but the currently
running project will not be located and an error dialog box will be displayed frequently. Uninstalling and reinstalling with the correct location will fix this.

Running:

Using the output data function to produce a csv file for global average temperature and snowfall produced a file with 0.0000 output for all snowfall data as the actual values of ~2.5e-006 are all truncated. This looks like a bug.

I am rather curious about the observation that Global Average Air Pressure drops as the tempareature rises in phase 3 of the experiment. This looks like a problem with the model as I would expect this to be constant or to rise slightly as the water vapour pressure rises with temparature and the carrying capacity of the air also rises. A local drop is not suprising but I have always imagined that this is always matched by an increase at other locations and hence gives no net change. The total mass of air is not decreased, after all, and it must still be supported!
[ Experiment 04yg_100031424 Pressure Min value= 1010.61 Max value= 1010.94 ]

This looks to be a very interesting and educational tool!

Martin.
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ProfileAndrew Hingston
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Message 11726 - Posted: 9 Apr 2005, 19:52:13 UTC - in response to Message 11725.  
Last modified: 13 Apr 2005, 16:20:09 UTC

>
> Using the output data function to produce a csv file for global average
> temperature and snowfall produced a file with 0.0000 output for all snowfall
> data as the actual values of ~2.5e-006 are all truncated. This looks like a
> bug.
>

You might like to see <a href="http://www.climateprediction.net/board/viewtopic.php?t=2863">this thread</a>. Global average for snowfall may not be good measure because so much of the earth gets little or none. It does seem to be working for specific locations, though it might be useful for somebody to check the data for plausibility. As Honza remarks, you may have to choose your own scale to get a usable graph.

EDIT bug fixed in v2.1 - see Colin Bolton's post in the above thread.

&gt;
&gt; This looks to be a very interesting and educational tool!
&gt;

Yes. It has been frustrating to be without it for the past few months. You might also like to have a look at Martin Sykes' CPView as well, discussed <a href="http://www.climateprediction.net/board/viewtopic.php?t=2127">here</a> though he hasn't had the opportunity to modify it to show real time output from the BOINC model. It is fine for use with archived output from BOINC as well as classic runs.
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Message boards : Number crunching : Advanced visualisation now available for BOINC/cp.net

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