This data set provides information on primary and secondary dune characteristics in the river Waal. 

The bathymetric data and methods are described in:

Zomer, J. Y., Vermeulen, B., and Hoitink, A. J. F.: Coexistence of two dune scales in a lowland river, Earth Surf. Dynam., 11, 1283–1298, https://doi.org/10.5194/esurf-11-1283-2023, 2023

BM170 and BM181 include data over a range of 34 km at two separate timesteps. 
km34, 35, 36 include data at specific locations (one kilometer per file) over a range of time steps. 

Coordinates (x, y) are provided as RD new (EPSG:28992). Coordinates correspond to the location of a dune crest. 
datetime: Serial date, UTC+1
H: Dune height, vertical distance between crest elevation and average elevation of the up- and downstream trough. 
L: Dune length, horizontal distance between the up- and downstream dune trough. 
Lee: Average lee side slope [m/m]. 
maxLee: Lee side slope determined as described in Zomer et al. (2023) [m/m]. 