Bed topography and stickiness inferred from surface measurements on ice streams - Ţröstur Ţorsteinsson et al.

Inverting for basal conditions
An Example

TOP ROW: The input bed topography and stickiness pattern. The surface and velocities due to both are calculated, and added together plus noise (50% of maximum elevation and velocities)
MIDDLE ROW: The bed and stickiness resolved from the inversion.
BOTTOM ROW: Profiles (y = 0 km) of the bed topography (blue - input, red - inverted) and stickiness.