Surfacewater - hourly surface water discharges in catchment at Cabauw

Discharge has been measured at three locations. At these locations, measurement weirs have been installed in May 2007 to estimate discharges accurately. A V-notch weir is used to measure the inflow of surface water into the catchment near the Wielse Kade (Qin). Trapezoidal Rossum weirs have been installed to measure outflow (Qout1 and Qout2), of which the stage-discharge relations have been obtained by laboratory calibration. The uncertainty associated with the discharge measurement can be considerable in some cases.

Access dataset via API

The dataset can be downloaded via an API, more about this on the Developer Portal. Use the following API endpoint for access to this dataset:

Browse dataset

Browse through the files of this dataset. To retrieve a specific file, we recommend to use the API.

Data and Resources

Additional Info

Field Value
Dataset name cesar_srfwater_dischr_la1_t1h
Dataset version v1.0
Dataset edition 4
Dataset manager Claudia Brauer
Maintainer KNMI Data Services
Publication timestamp 2019-10-01T14:13:53Z
Reference system identifier EPSG4326
North bound latitude 51.975
East bound longitude 4.929
South bound latitude 51.968
West bound longitude 4.921
Dataset start time 2003-01-01
Dataset end time 2011-12-31
Update frequency notPlanned
Status completed
Identifier urn:xkdc:ds:nl.knmi::cesar_srfwater_dischr_la1_t1h/v1.0/
Lineage statement Dataset has been gap filled (see dataset description document)
Supplemental information This dataset was initial uploaded and distributed via CESAR Database System, CDS ( The full name in CDS was cesar_surfacewater_dischargehourly_la1_t1d, v1.0 A dataset description document can be downloaded from
Use limitation No use limitations
Last metadata update March 28, 2022, 12:43 (UTC)