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 […]
Here’s a little Gaussian process emulator example that I cooked up using the R package DiceKriging. The function is Higdon02, from this useful archive on simulation experiments. I’ve used a constant to initiate the model fit on the smallest data set: km(form=~1, …) rather than a linear term: km(form=~., …) as otherwise you end up […]
I’m pretty excited to be part of the regular team for the new Met Office podcast, Mostly Weather. We’re trying to capture a fun, relaxed and hopefully interesting discussion of science, history and little-known facts about weather and climate. I’d like to think that we hit the nerdy-but-accessible sweet spot. We’ve a couple of episodes […]
What are the best/most influential/most read/most overrated journals in climate science? This turns out to be quite hard to judge, as climate science these days can seemingly include everything from economics, to biochemistry, and back to psychology. Google Scholar has a list of what it thinks are the best journals in atmospheric science. Here is […]
Here is a further list of ways to win at Twitter*. Some other ways can be found here. 7. Be heard Demand that your opponent reads everything that you ever wrote, on any subject. If they haven’t, or they won’t, chide them for being ignorant or narrow minded as appropriate. 8. Victim Bully Victim bully. […]
A new paper by Karl et al. in Science makes a spirited argument that there really is no “hiatus” or “slowdown” in global surface temperature warming. The paper focuses on some of the more technical details of bias correction in the temperature data record, rather than on the dynamics of the climate. It is from a […]
I’ve been enjoying following the mega-meetup-12k-scientist-strong EGU conference via the hashtag #EGU15. In particular, people are tweeting pictures of and links to their posters, as adverts for other scientists that happen to be on twitter. This got me to thinking: could we use twitter to run an online-only poster session? I really like poster sessions […]
Our paper Quantifying the likelihood of a continued hiatus in global warming is published today in Nature Climate Change. Here is the New Scientist take, the Carbon Brief take, and the Met Office Research News article. Chris Roberts took on a huge task, processing massive amounts of data in the CMIP5 climate model archive, and leading […]
This week, I was an author on an open letter to the climate science community, calling for and end to the use of the dreaded “Rainbow” colour palette for scientific visualisation (mirrored over at my data viz blog Better Figures). It was the busiest day ever at both CLB and BF, and we got lots […]
So Mark Brandon, Sheldon Bacon and Gavin Schmidt have been threatened with a threat of potential legal action, possibly, for live tweeting a scientific meeting. Some details here and here, and under the rather brilliant hashtag #BrandonBergGate (geddit?). I’m with James Annan on this one*, but the whole thing has clearly eaten time, effort, and […]
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