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The plots below show time-series observation statistics for temperature observations from dropsondes within 1 (left) and 5 (right) degrees of Florence. Dropsondes wind and surface pressure statistics are plotted in the lower figures.
Below is a sequence of coverage maps showing the usage of wind from dropsondes
Throughout the lifetime of FLORENCE the data assimilation seem to consistently reduce the position errors.
During the lifetime of Florence an increased number of observations of ocean floats was noted (see first plot). These additional floats were ALAMO (Air-Launched Autonomous Micro Observer) float, 10 floats deployed by WHOI in order to monitor Hurricane Florence, in the predicted path of Hurricane. These floats descend to 300m every 2 hours. The behaviour of the data assimilation was checked and most response in our ocean system is already visible in the model background, which did a very good job in representing the cooling/deepening effect during Florence event. And DA only slightly corrected the temperature fields.
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