Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 25, issue 7
Articles | Volume 25, issue 7
https://doi.org/10.5194/hess-25-4061-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-25-4061-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 7
Research article
 | 
13 Jul 2021
Research article |  | 13 Jul 2021

A climatological benchmark for operational radar rainfall bias reduction

Ruben Imhoff, Claudia Brauer, Klaas-Jan van Heeringen, Hidde Leijnse, Aart Overeem, Albrecht Weerts, and Remko Uijlenhoet

Supplement

https://doi.org/10.5194/hess-25-4061-2021-supplement

Data sets

The archived gauge-adjusted (reference) QPE Royal Netherlands Meteorological Institute https://dataplatform.knmi.nl/dataset/rad-nl25-rac-mfbs-em-5min-2-0

Archived 5-min rainfall accumulations from a radar dataset for the Netherlands A. Overeem and R. Imhoff https://doi.org/10.4121/uuid:05a7abc4-8f74-43f4-b8b1-7ed7f5629a01

Climatological adjustment factors for operational radar rainfall bias reduction in the Netherlands R. Imhoff, C. Brauer, K.-J. van Heeringen, H. Leijnse, A. Overeem, A. Weerts, and R. Uijlenhoet https://doi.org/10.4121/13573814

Scientific colour maps (Version 6.0.4) F. Crameri and G. E. Shephard https://doi.org/10.5281/zenodo.4153113

Download
Short summary
Significant biases in real-time radar rainfall products limit the use for hydrometeorological forecasting. We introduce CARROTS (Climatology-based Adjustments for Radar Rainfall in an OperaTional Setting), a set of fixed bias reduction factors to correct radar rainfall products and to benchmark other correction algorithms. When tested for 12 Dutch basins, estimated rainfall and simulated discharges with CARROTS generally outperform those using the operational mean field bias adjustments.
Read more