Category JULES

Constraining the carbon cycle in a land surface model – a talk for EGU23

April 25, 2023 · by · in Climate, emulators, ensemble, JULES, Meetings, Presentations, statistics, UQ · Leave a comment

I’m attending the EGU 2023 assembly this week, and gave a talk on our latest paper Constraining the carbon cycle in JULES-ES1.0. Attending online works fine, but doesn’t give you all the bonuses of meeting in person, getting the lowdown on the coolest talks coming up, and catching up with old colleagues and friends. One […]

A pairs density ploy of the JULES inputs that pass level 1 constraints.

Visualising input spaces using emulators

November 15, 2019 · by · in Climate, emulators, ensemble, JULES, Modeling, Prediction, statistics · Leave a comment

In a previous post, I looked at some of the ways we could visualise the input space of climate models, when they are constrained to produce behaviour that looks something like the real world. I used parallel co-ordinates plots and pairs plots to visualise the high (32) dimensional input space of the JULES land surface […]

Visualising weird input spaces

October 30, 2019 · by · in Climate, emulators, ensemble, JULES, Papers, Prediction, statistics · Leave a comment

I’ve been working on a fairly large (~500 member) perturbed-parameter ensemble of the land surface model JULES. The model simulates the global historical land surface, and each ensemble member is forced by the same global reanalysis on the HadGEM2 grid scale. Differences in the model output are therefore caused by the different values of the […]