# Model predictions along a trajectory as a function of *β*.

Actual and model predicted vectors for different *β* values shown at several points along an empirical path from the first day starting at the *S* release location. The black arrows represent the actual velocity vectors at the same point. Model predicted vectors corresponding to large *β* values (red and yellow arrows), are better oriented towards the platform than the those corresponding to smaller *β* values (blue and green). The non-monotonic speed profile (arrow length) as a function of beta can be seen in the top inset (red border). The standard deviation of the velocity noise is shown as a grey circle around the tip of the predicted velocity vector in the bottom inset (blue border). The velocity vectors corresponding to the estimated value of *β* that best fits the data (*β* = 0.273) are indicated by dashed black arrows in the insets.