Techniques developed at MIT and elsewhere will be used in ACES to solve
for the values of uncertain physical parameters in planetary models.
These optimization methods employ advanced strategies for adjusting
non-linear models to optimally fit observations. Studies that will be
carried out in ACES include
- Estimating oceanic mixing due to turbulent eddies.
- Estimating vertical mixing in the ocean.
- Estimating viscous properties of the solid earth.
The figure below shows the results for one such experiment. A parallel
adjoint of the M.I.T. General Circulation
Model and an iterative optimization system are used to estimate the
turbulent eddy forcing on the mean flow required to fit a 100 year ocean
simulation trajectory to observations. The plots show the eddy mixing
coefficient implied by the calculated forcing. The top panel shows the
zonal average and the lower panel shows the mean mixing in the upper