Fig. 1

ZWD estimated at Ny-Ã…lesund, Spitsbergen, Norway, with the Kalman filter on 12 August 2008. Shown are the results from the forward running Kalman filter, the backward running Kalman filter, and the smoothed results
ZWD estimated at Ny-Ã…lesund, Spitsbergen, Norway, with the Kalman filter on 12 August 2008. Shown are the results from the forward running Kalman filter, the backward running Kalman filter, and the smoothed results