Setting expectations for hydrologic model performance with an ensemble of simple benchmarks

Example of benchmark inputs and results for a snow‐dominated basin, subset to a 4‐year period on either side of the calculation (left) and evaluation (right) divide (dotted red line). KGE scores in legends are calculated for the evaluation period. (a) Observed streamflow, precipitation and a ‘rain p...

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Bibliographic Details
Published in:Hydrological processes 2024-10, Vol.38 (10), p.n/a
Main Author: Knoben, Wouter J. M.
Format: Article
Language:English
Subjects:
benchmark ensembles
Benchmarks
Catchment area
Hydrologic models
model benchmarking
model performance
Precipitation
Rainfall-runoff relationships
Runoff
Stream discharge
Stream flow
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Summary:Example of benchmark inputs and results for a snow‐dominated basin, subset to a 4‐year period on either side of the calculation (left) and evaluation (right) divide (dotted red line). KGE scores in legends are calculated for the evaluation period. (a) Observed streamflow, precipitation and a ‘rain plus melt’ flux (RPM) derived from precipitation and temperature. RPM is used to define the benchmarks shown in c and d. (b) Flow‐only benchmarks. The straight light green line is the traditional (NSE = 0; KGE = 1‐√2) mean flow benchmark. (c) Rainfall‐runoff ratio benchmarks. A single rainfall‐runoff ratio is derived from the data in the calculation period and used to scale annual and monthly RPM sums into flow benchmarks. (d) Simple models that represent catchment function.
ISSN:0885-6087
1099-1085
DOI:10.1002/hyp.15288