unfiltered_bedlevel.csv: the width averaged bed-level over the navigation channel as function of time and riverkilometer
filtered_0-03km.csv: the bed-level relative to the time-averaged bed level for wavelengths smaller than 300 m
filtered_03-9km.csv: the bed-level relative to the time-averaged bed level for wavelengths between 300 m and 9 km
filtered_9--km.csv: the bed-level relative to the time-averaged bed level for wavelengths larger than 9 km

- in the data we choose the date that is representative for the evaluated region, Hurwenen.
- We filter the data using the wavelet package provided by Torrence et al. 

The raw unfiltered data are available on request at servicedesk-data@rws.nl