Download original image
DA with the Kalman Filter. a) The true state q (black), prior mean q (blue), and posterior mean q (red) at the final assimilation time. The green curve is the solar forcing function, g, also at the final time. b) The state for the grid point at longitude = 0 as a function of time; same colour scheme as in (a). c) The maximum value of q as a function of time; same colour scheme as in (a). d) Solar forcing, F, as a function of time; same colour scheme as in (a). e) Spatially averaged error squared error with respect to the truth for q (solid) for the prior (blue) and posterior (red). The spatially averaged variance prediction from the Kalman filter (dashed) for the prior (blue) and posterior (red). f) Same as (e) but for the solar forcing parameter, F.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.