Uncertainty needs to be squared for cost function
Completing a RT inversion experiment and updates to the GP obsob code. Derivatives on the latter are not ready. require bandpass functions etc.
Changes to operators.py. the other changed files will likely be deleted. In operators.py need to do the spatial regularisation and the observation operator taking a GP emulator
State and prior work both with 1d and 2d state representations. Theres also a new 1d observation operator using emulators that need to be specified on a 5x5 degree grid. This is untested. Started with an image observation operator too
Some changes to the operators definition. Identity 1d works, but still no uncertainty. Will be working on GP emulators, but also 2d identity