Message boards : Number crunching : Same parameters different results
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Send message Joined: 5 Aug 04 Posts: 186 Credit: 1,612,182 RAC: 0 |
....<b>> However, it will be important not to omit such parameter combinations from > future experiments using models with dynamic oceans since they would not > exhibit the same problem.</b> > Very interesting, thanks Chris, I was wondering how I was going to be able to read the supplements without subscribing to 'Nature'. The final paragraph that I've highlighted above is good to know - we were saying much the same as that at the CPDN open day, and somewheres in the long 'cold equator' thread on the phpBB too but hadn't really heard any response until now. :-) <a href="http://www.nmvs.dsl.pipex.com/"><img src="http://boinc.mundayweb.com/cpdn/stats.php?userID=6&team=off&trans=off"></a> <a href="http://www.nmvs.dsl.pipex.com/">Distributed Mania</a> |
Send message Joined: 26 Aug 04 Posts: 67 Credit: 10,281,460 RAC: 10,507 |
Hi there For those who were following my experiment running identical model comparisons (WU248363) on 2 different PC's, Amy and Stacey on the php boards, here are the end of Phase 2 results: <a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?field=Temperature&resultid=466808&phase=2#graph">Amy's official 'live' Phase 2 Result</a> Comparative Temperature Trace: <img src="http://cpdn.tuxie.org/Pete_B/Combined_Data/Amy_Stacey_Ph_2_Temp_Trace(m).png"> Amy Temperature Map, Summer 1840: <img src="http://cpdn.tuxie.org/Pete_B/Amy_Data/WU248363/Amy_Summer_1840.png"> Stacey Temperature Map, Summer 1840: <img src="http://cpdn.tuxie.org/Pete_B/Stacey_Data/WU248363/Stacey_Summer_1840.png"> Amy - Stacey Differential temperature Map, Summer 1840: <img src="http://cpdn.tuxie.org/Pete_B/Combined_Data/Amy_Stacey_Summer_1840.png"> For most of Phase 2, Stacey calculated a slightly warmer Global temperature than Amy following a very close Phase 1. The end of Phase 2 differential map shows the regional differences between the two PC's. Both machines are now in Phase 3 but with a sobering result so far, which comes right on the back of today's Nature publication. Stacey is running slightly ahead of Amy, she is now at 75% of the run, i.e. 4 years into Phase 3. In all my CPDN runs so far (5 Classic's & 5 BOINC's), I have never yet seen such a rapid rise in temperature as Stacey is calculating. 4 years into Phase 3, the Global average is already above 16C and is still rising at a rapid rate :-(. Only to wait and see how Amy processes the Phase. Pete |
Send message Joined: 23 Aug 04 Posts: 49 Credit: 183,611 RAC: 0 |
> ....<b>> However, it will be important not to omit such parameter > combinations from > > future experiments using models with dynamic oceans since they would not > > exhibit the same problem.</b> > Very interesting, thanks Chris, I was wondering how I was going to be able to > read the supplements without subscribing to 'Nature'. The final paragraph that > I've highlighted above is good to know - we were saying much the same as that > at the CPDN open day, and somewheres in the long 'cold equator' thread on the > phpBB too but hadn't really heard any response until now. :-) (1) We're intending to put together a "bumper issue" of the cpdn paper (or maybe an extended mix - not sure how we're supposed to phrase these things...) that will include the supplementary info as well as the paper, and maybe Myles's '99 Nature piece when cpdn was just a pipe dream. And it will have a pretty cover (from the Nature mock-up). (2) I thought we'd already said that we wanted to explore the cold equator models in the coupled ensemble? I think we're all quite keen that we crack on with a few papers now - some really basic ones are: (a) the duplicates paper (Sylvia); (b) the quality control paper (Jamie and Stephen at RAL); observational comparisons (Claudio); the cold equator paper (Nick or me, probably) and a sort of ic paper, but that might take a bit of time till we get the big ic ensemble back - Dave S is quite keen on that one, I think. And the non-linearity paper, which a few of us are keen on. And then there is all the other research (Nick's THC stuff, Duncan & Ellie's s-cycle, some ocean spinups...) too. And some of our collaborators have some cool ideas, too. Dave |
Send message Joined: 5 Aug 04 Posts: 186 Credit: 1,612,182 RAC: 0 |
> (1) We're intending to put together a "bumper issue" of the cpdn paper (or > maybe an extended mix - not sure how we're supposed to phrase these things...) > that will include the supplementary info as well as the paper, and maybe > Myles's '99 Nature piece when cpdn was just a pipe dream. And it will have a > pretty cover (from the Nature mock-up). I Look forward to reading it &, very probably, printing it out 'for posterity' too. ;-) > (2) I thought we'd already said that we wanted to explore the cold equator > models in the coupled ensemble? My memory of the open day is getting a little hazy now - I do recall one of my quaeries being answered in that these 'cold equator models' wouldn't be arbitrarily ruled out for the coupled model but the comment in 'Nature' is more explicit than that I think. > I think we're all quite keen that we crack on > with a few papers now Us users out in the community are quite keen on reading more 'results' too methinks - nice to see some properley done analysis of our computer's work. ;-) > - some really basic ones are: (a) the duplicates paper > (Sylvia); (b) the quality control paper (Jamie and Stephen at RAL); > observational comparisons (Claudio); the cold equator paper (Nick or me, > probably) and a sort of ic paper, but that might take a bit of time till we > get the big ic ensemble back - Dave S is quite keen on that one, I think. And > the non-linearity paper, which a few of us are keen on. And then there is all > the other research (Nick's THC stuff, Duncan & Ellie's s-cycle, some ocean > spinups...) too. And some of our collaborators have some cool ideas, too. :-D <a href="http://www.nmvs.dsl.pipex.com/"><img src="http://boinc.mundayweb.com/cpdn/stats.php?userID=6&team=off&trans=off"></a> <a href="http://www.nmvs.dsl.pipex.com/">Distributed Mania</a> |
Send message Joined: 10 Oct 04 Posts: 223 Credit: 4,664 RAC: 0 |
We are also hoping that the Open University will start the course sometime soon so that the less climatologically and statistically literate among us (eg me) can understand both our models and the real world and the forum discussions and the publications with greater ease. Will the OU give discounts off fees for completed models? __________________________________________________ |
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