GCM canopy interception capacity parameterisation


How much water can the vegetation canopy hold and how should models parameterise this? It sounds like a simple question, but nothing could be further from the truth.

In models, the representation of the canopy interception capacity varies quite a bit from the measured values in the literature – by as much as a factor 10. In GCMs this isn’t an extensively examined parameter, so we wondered what the effect of changing it might be. As it turned out, rather a lot.

This paper has been accepted for Climate Dynamics. A pre-print copy is available to download and the final publication is available at Springer
via http://dx.doi.org/10.1007/s00382-014-2100-1.

The simulation data that made this paper is now available online, via the BRIDGE webpages. So you can have bit of an interrogate of the data yourself, if you so wish. Bear in mind that not all of the variables that we used in the paper are available via the online system, and some are calculated slightly differently. Therefore the results from the webpages may not be exactly the same as shown in the paper. If you’d like to use the results, please do get in contact with me, I’ll be happy to help.