Dear Richard and dear all,
I am of course happy to expand a bit on this. The experiments were
initiated at the pre-conference workshop (an afternoon organised by
Guido Schreurs and myself) preceding GeoMod2004 and consist of two
parts:
- An analogue 'benchmark' with 10 participating labs. This is really
exciting as it is the first time ever (as far as we are aware of) that
so many analogue laboratories compared their modelling results directly,
for the same set-up and using similar modelling materials
- A set of numerical experiments of the same set-ups as used in the
analogue experiments. We both inter-compared the numerical results, and
compared them to the analogue results. Personally i find this really
exciting too, as we can for example evaluate how closely numerical
models can reproduce analogue model conditions.
More details on the second set hopefully at EGU - so come and see!
(though in which session i cannot really tell you yet....)
Plans on further new analogue benchmarks, numerical benchmarks and
analogue-numerical comparisons are being made and input/participation is
of course welcome. Guido Schreurs ([log in to unmask]) can be
contacted to obtain more information on the analogue experiments and you
can contact me for information on the numerical experiments - though i
would like to stress that this is all a group effort!
> Have other people tried similar comparisons of different modelling
code?
I know of the following:
Blanckenbach, B., Busse, F., Christensen, U., Cserepes, L., Gunkel, D.,
Hansen, U., Harder, H., Jarvis, G., Koch, M., Marquart, G., Moore, D.,
Olson, P., Schmeling, H. & Schnaubel, T. 1989. A benchmark comparison
for mantle convection codes. Geophysical Journal International, 98,
23-38.
Van Keken, P.E., King, S.D., Schmeling, H., Christensen, U.R.,
Neumeister, D. & Doin, M.-P. 1997. A comparison of methods for the
modelling of thermochemical convection. Journal of Geophysical Research,
102, 22,477-22,495.
But i would be really interested in hearing about other efforts!
Best regards,
Susanne
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