Monday, June 18, 2012

5308.txt

date: Tue, 07 Feb 2006 17:09:10 +0000
from: Tim Osborn <t.osbornatXYZxyz.ac.uk>
subject: Fwd: Bern2.5CC IPCC-AR4 millennium simulations
to: Gian-Kasper Plattner <plattneratXYZxyzmate.unibe.ch>, Jonathan Overpeck <jtoatXYZxyzrizona.edu>, Fortunat Joos <joosatXYZxyzmate.unibe.ch>, Eystein Jansen <eystein.jansenatXYZxyz.uib.no>, Keith Briffa <k.briffaatXYZxyz.ac.uk>

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Dear all,

I have made a plot of these data from the Bern2.5CC model, but I
realise that I do not understand the differences between the forcings
that were applied to the model - in particular, the difference
between the CO2_nonCO2 and the CO2_anthr0, though I wonder whether
the latter runs have only natural forcings and no anthropogenic
forcings? Perhaps "Fortunat's readme document" would clarify these
issues, but I don't think I have a copy - please could someone
forward one to me.

A related problem is that the 7 simulations didn't come to me as
separate files - at some point they were incorporated into one long
email message as text. Given that the only distinguishing feature
was their file names, I can no longer be certain which one is which -
other than by comparing with the plots provided.

Finally, if you want the forcings plotted as well as the NH
temperatures, I will need the forcings. Previously we had them
expressed as radiative forcing in W/m2, but separately for
"volcanic", "solar" and "all other forcings", but perhaps here we
just need a total forcing? Please advice. Plus, if we want a plot
of the forcings, I will need the forcing time series. Perhaps these
are also in "Fortunat's readme document"?

Sorry for so many questions,

Tim

>>Date: Fri, 27 Jan 2006 16:46:40 +0100
>>From: Gian-Kasper Plattner <plattneratXYZxyzmate.unibe.ch>
>>Reply-To: plattneratXYZxyzmate.unibe.ch
>>User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4)
>>Gecko/20030624 Netscape/7.1
>>X-Accept-Language: en-us, en
>>To: Jonathan Overpeck <jtoatXYZxyzrizona.edu>
>>CC: Fortunat Joos <joosatXYZxyzmate.unibe.ch>,
>> Stefan Rahmstorf <rahmstorfatXYZxyzan-klima.de>,
>> Anders Levermann <levermannatXYZxyz-potsdam.de>,
>> Eva Bauer <eva.baueratXYZxyz-potsdam.de>,
>> Eystein Jansen <eystein.jansenatXYZxyz.uib.no>,
>> Keith Briffa <k.briffaatXYZxyz.ac.uk>,
>> Christoph Raible <raibleatXYZxyzmate.unibe.ch>
>>Subject: Bern2.5CC IPCC-AR4 millennium simulations
>>X-Virus-checked: by University of Berne
>>X-UEA-Spam-Score: 0.0
>>X-UEA-Spam-Level: /
>>X-UEA-Spam-Flag: NO
>>
>>Dear all,
>>
>>Please find attached the Bern2.5CC model output for the IPCC-AR4
>>millenium simulations, all spanning the period from 1000 - 1998AD.
>>Some plots including a preliminary comparison between CLIMBER-2 and
>>Bern2.5CC results are additionally included (see infos below).
>>
>>1. The following Bern2.5CC files are attached (with the simulation
>>tag as specified in Fortunat's readme document):
>>
>>Simulation B1.1: Bern2.5CC_bard08_volcCrow_CO2_nonCO2_1000-1998_ar4.dat
>>Simulation B1.2: Bern2.5CC_bard25_volcCrow_CO2_nonCO2_1000-1998_ar4.dat
>>Simulation B2 : Bern2.5CC_WLS-2005_volcCrow_CO2_nonCO2_1000-1998_ar4.dat
>>Simulation B3.1: Bern2.5CC_bard08_volcCrow_CO2_anthr0_1000-1998_ar4.dat
>>Simulation B3.2: Bern2.5CC_bard25_volcCrow_CO2_anthr0_1000-1998_ar4.dat
>>Simulation B3.3: Bern2.5CC_WLS-2005_volcCrow_CO2_anthr0_1000-1998_ar4.dat
>>Simulation B4 : Bern2.5CC_ctrl_1000-1998_ar4.dat
>>
>>The variables stored are: year AD, globally averaged surface air
>>temperature, and northern hemispheric and southern hemispheric
>>surface air temperature. The most important information about model
>>setup and references is included in the extended header in each
>>file. Please note that the information on the forcing timeseries
>>applied are specified in the filename only!
>>
>>Please let me know if something is unclear or if you want
>>additional informations about these simulations in particular or
>>the Bern2.5CC model in general. I can also provide more output
>>variables if desired (such as e.g. MOC, Sea level, ...).
>>
>>
>>2. In addition, the following plots with CLIMBER-2 and Bern2.5CC
>>results are attached:
>>
>>Dgmairtnorm_millenium_Bern2.5CC-CLIMBER2_1000_1998_ipccar4.eps
>>Dgmairtnorm_millenium_Bern2.5CC-CLIMBER2_offset0.8_1000_1998_ipccar4.eps
>>Dgmairtnorm_millenium_Bern2.5CC_1000_1998_ipccar4.eps
>>Dgmairtnorm_millenium_CLIMBER2_1000_1998_ipccar4.eps
>>
>>All these plots show the anomaly in global mean surface air
>>temperature with respect to the value in year 1001AD from either
>>CLIMBER-2, Bern2.5CC, or both. Let me know if you have questions or
>>comments about the plots.
>>
>>
>>With best regards,
>>
>>Gian-Kasper
>>
>>--
>>**************************************
>>
>>Gian-Kasper Plattner
>>
>>Climate and Environmental Physics
>>Physics Institute, University of Bern
>>Sidlerstrasse 5, CH-3012 Bern
>>
>>Phone ++41 (0)31 631 44 67
>>Fax ++41 (0)31 631 87 42
>>plattner@climate.unibe.ch
>>http://www.climate.unibe.ch/~plattner
>>
>>**************************************

Dr Timothy J Osborn
Climatic Research Unit
School of Environmental Sciences, University of East Anglia
Norwich NR4 7TJ, UK

e-mail: t.osbornatXYZxyz.ac.uk
phone: +44 1603 592089
fax: +44 1603 507784
web: http://www.cru.uea.ac.uk/~timo/
sunclock: http://www.cru.uea.ac.uk/~timo/sunclock.htm

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