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ENSO is briefly mentioned in the GMD paper, but Thomas Toniazzo at NCAS-Climate, Reading has done a proper job of analysing the oscillations in the tropical Pacific in FAMOUS. You'll notice I didn't say ENSO that time. It's complex - I'll put it up here once I've got it formatted.
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ENSO is briefly mentioned in the GMD paper, but Thomas Toniazzo at NCAS-Climate, Reading has done a proper job of analysing the variability in the tropical Pacific in FAMOUS. You'll notice I didn't say ENSO that time. It's [[XdbubENSO|complex]].
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!!!Climate sensitivity
Global average CO2 sensitivity has already been found to be similar to that of [=HadCM3=], but I've done a brief look at the [[CO2Forcing|spatial patterns of climate change under C02 forcing in FAMOUS]], compared to those in [=HadCM3=].
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Since the publication of the control climate for these version of FAMOUS in [[http://www.geosci-model-dev.net/1/53/2008/gmd-1-53-2008.html|GMD]] a few extra bits of analysis have been done by [[CurrentWorkRobin|me]] and others. As I do/find out about useful things in the FAMOUS climate, I'll put them here.
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Since the publication of the control climate for these versions of FAMOUS in [[http://www.geosci-model-dev.net/1/53/2008/gmd-1-53-2008.html|GMD]] a few extra bits of analysis have been done by [[CurrentWorkRobin|me]] and others. As I do/find out about useful things in the FAMOUS climate, I'll put them here.
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||QUEST ||as xdbua (pgi) || -0.08||
||HECToR ||(pathscale, no [=HadoCC=]) || +0.02||
||HECToR ||(pathscale, with HadOCC, older run) || +0.03||
||HECToR ||(pgi, with HadOCC, older run) || +0.02||
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||QUEST ||as xdbua (pgi) || -0.08 ||
||HECToR ||(pathscale, no [=HadoCC=]) || +0.02 ||
||HECToR ||(pathscale, with HadOCC, older run) || +0.03 ||
||HECToR ||(pgi, with HadOCC, older run) || +0.02 ||
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||'''platform'''||'''notes'''|| '''TOA imbalance (W/m^2)'''||
||QUEST || as xdbua (pgi) || -0.08||
||HECToR || (pathscale, no [=HadoCC=])|| +0.02||
||HECToR ||(pathscale, with HadOCC, older run)|| +0.03||
||HECToR ||(pgi, with HadOCC, older run)|| +0.02||
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|| '''platform''' || '''notes''' || '''TOA imbalance (W/m^2)''' ||
||QUEST ||as xdbua (pgi) || -0.08||
||HECToR ||(pathscale, no [=HadoCC=]) || +0.02||
||HECToR ||(pathscale, with HadOCC, older run) || +0.03||
||HECToR ||(pgi, with HadOCC, older run) || +0.02||
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||'''platform'''||'''notes'''|| '''TOA imbalance (W/m^2)'''||
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The GMD paper quotes a TOA imbalance of 0.08W/m^2 into the atmosphere for xdbua, after about 4000 years of spinup. This was run on the QUEST cluster at Bristol. Salvatore Pascale at Reading found that his modified version of FAMOUS on [=HECToR=] was drifting more than this, so we looked into things a little. Even without Salvatore's mods, Jonathan found his "standard" [=HECToR=] job has a different imbalance to the QUEST spinup. There a few possible reasons, including different compilers (QUEST jobs use pgi, HECToR can use pgi or pathscale) and the inclusion or not of [=HadOCC=] (which can affect heat uptake at the ocean surface).
It's wasn't simple to find strictly comparable runs in the morass of test jobs we have, but I pulled some numbers from different runs, calculated in a (hopefully) more model-compatible way. All of these numbers are pretty small
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||QUEST || as xdbua (pgi) || -0.08||
||HECToR || (pathscale, no [=HadoCC=])|| +0.02||
||HECToR ||(pathscale, with HadOCC, older run)|| +0.03||
||HECToR ||(pgi, with HadOCC, older run)|| +0.02||
There's not very much data to do a direct, clean comparison of the impact of HadOCC on the TOA trend. What I've got suggests that turning it off might well have a small +ve effect.
Overall, not very scientific, but it looks like platform/compiler differences are probably not causing differences in model drift. The exclusion of [=HadOCC=] might have a small warming effect on the climate.
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Observational records show a correlation between the long Central England Temperature record and SSTs, particularly in the North Atlantic. This could help with prediction, since it's thought that SSTs are potentially more predictable than some other climate variables. Ed Hawkins at NCAS-Climate, Reading has been looking at this correlation in different climate models - the correlation plots for FAMOUS are pretty good really! Top left is obs., top right is [=HadCM3=], bottom left is an adtan/xbyvs, bottom right is xcpsa/xdbub.
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Observational records show a correlation between the long Central England Temperature record and SSTs, particularly in the North Atlantic. This could help with prediction, since it's thought that SSTs are potentially more predictable than some other climate variables. Ed Hawkins at NCAS-Climate, Reading has been looking at this correlation in different climate models - the correlation plots for FAMOUS are pretty good really! Top left is obs., top right is [=HadCM3=], bottom left is an adtan/xbyvs, bottom right is xcpsa/xdbub (links to large EPS file).
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[[http://www.famous.ac.uk/Figures/xdbub_extra/stemp.ps|Attach:sst_cet_correl.png]]
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[[http://www.famous.ac.uk/Figures/xdbub_extra/sst_cet_correl.eps|Attach:sst_cet_correl.png]]
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Observational records show a correlation between the long Central England Temperature record and SSTs, particularly in the North Atlantic. This could help with prediction, since it's thought that SSTs are potentially more predictable than some other climate variables. Ed Hawkins at NCAS-Climate, Reading has been looking at this correlation in different climate models - the correlation plots for FAMOUS are pretty good really!
to:
Observational records show a correlation between the long Central England Temperature record and SSTs, particularly in the North Atlantic. This could help with prediction, since it's thought that SSTs are potentially more predictable than some other climate variables. Ed Hawkins at NCAS-Climate, Reading has been looking at this correlation in different climate models - the correlation plots for FAMOUS are pretty good really! Top left is obs., top right is [=HadCM3=], bottom left is an adtan/xbyvs, bottom right is xcpsa/xdbub.
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'''[++xcpsa/xdbub extra++]'''
Since the publication of the control climate for these version of FAMOUS in [[http://www.geosci-model-dev.net/1/53/2008/gmd-1-53-2008.html|GMD]] a few extra bits of analysis have been done by [[CurrentWorkRobin|me]] and others. As I do/find out about useful things in the FAMOUS climate, I'll put them here.
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!!!ENSO
ENSO is briefly mentioned in the GMD paper, but Thomas Toniazzo at NCAS-Climate, Reading has done a proper job of analysing the oscillations in the tropical Pacific in FAMOUS. You'll notice I didn't say ENSO that time. It's complex - I'll put it up here once I've got it formatted.
!!!Southern Ocean
Zhaomin Wang did a short analysis of the climatology of the Southern Ocean in FAMOUS last summer. His presentation from the [[http://www.famous.ac.uk/index.php/Main/Workshop0808|FAMOUS meeting 2008]] can be found [[http://cgam.nerc.ac.uk/pmwiki/FAMOUS/uploads/Zhaomin.ppt|here]]
!!!Climate Drift
!!!Central England Temperature/SST correlations
Observational records show a correlation between the long Central England Temperature record and SSTs, particularly in the North Atlantic. This could help with prediction, since it's thought that SSTs are potentially more predictable than some other climate variables. Ed Hawkins at NCAS-Climate, Reading has been looking at this correlation in different climate models - the correlation plots for FAMOUS are pretty good really!
[[http://www.famous.ac.uk/Figures/xdbub_extra/stemp.ps|Attach:sst_cet_correl.png]]