You can use the R package DiceOptim to choose the next point to run your expensive simulator. Here’s a gif of function EGO.nsteps() in action, choosing one point at a time, with an initial design of three points. It doesn’t behave in exactly the way I expected, putting lots of points in that well […]
I wrote a talk on climate modelling, aimed at the interested-but-non-specialist public. Here it is. It touches on: 1) The choices we have to make as a society. 2) The difficulty of doing controlled experiments with a single Earth. 3) The idea of a climate model. 4) A really simple climate model from first principles. […]
It’s been pretty busy round these parts, here are a few notes from the last month or so. Natural variability – Energy budget Our paper on natural variability in the Earth’s energy budget got a nice write-up from John Abraham in the Guardian. Mat Collins happened to be passing, and took a nice picture of […]
I’ve been at a great workshop on statistical methods for process models (mostly of the Earth system), set up by Lindsay Lee, from Leeds. It was set up as an opportunity for modellers of many stripes to hear about some of the latest statistical techniques being applied to a range of domains, and I think […]
I’ve been at the CliMathNet meeting all week, featuring the complementary set of people that I didn’t see at IMSC. Here is the talk that I’ll be giving this morning, explaining some of the ideas in our paper on potential constraint of climate models.