Monday, June 18, 2012


date: Tue, 07 Feb 2006 17:09:10 +0000
from: Tim Osborn <>
subject: Fwd: Bern2.5CC IPCC-AR4 millennium simulations
to: Gian-Kasper Plattner <>, Jonathan Overpeck <>, Fortunat Joos <>, Eystein Jansen <>, Keith Briffa <>

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,


>>Date: Fri, 27 Jan 2006 16:46:40 +0100
>>From: Gian-Kasper Plattner <>
>>User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4)
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>>X-Accept-Language: en-us, en
>>To: Jonathan Overpeck <>
>>CC: Fortunat Joos <>,
>> Stefan Rahmstorf <>,
>> Anders Levermann <>,
>> Eva Bauer <>,
>> Eystein Jansen <>,
>> Keith Briffa <>,
>> Christoph Raible <>
>>Subject: Bern2.5CC IPCC-AR4 millennium simulations
>>X-Virus-checked: by University of Berne
>>X-UEA-Spam-Score: 0.0
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>>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:
>>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 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

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

phone: +44 1603 592089
fax: +44 1603 507784


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