On the choice of calibration metrics for high-flow estimation using hydrologic models

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F19%3A79378" target="_blank" >RIV/60460709:41330/19:79378 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.hydrol-earth-syst-sci.net/23/2601/2019/" target="_blank" >https://www.hydrol-earth-syst-sci.net/23/2601/2019/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/hess-23-2601-2019" target="_blank" >10.5194/hess-23-2601-2019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the choice of calibration metrics for high-flow estimation using hydrologic models

Popis výsledku v původním jazyce

Calibration is an essential step for improving the accuracy of simulations generated using hydrologic models. A key modeling decision is selecting the performance metric to be optimized. It has been common to use squared error performance metrics, or normalized variants such as Nash Sutcliffe efficiency (NSE), based on the idea that their squared-error nature will emphasize the estimates of high flows. However, we conclude that NSE based model calibrations actually result in poor reproduction of high-flow events, such as the annual peak flows that are used for flood frequency estimation. Overall, this work highlights the need for a deeper understanding of performance metric behavior and design in relation to the desired goals of model calibration.

Název v anglickém jazyce

On the choice of calibration metrics for high-flow estimation using hydrologic models

Popis výsledku anglicky

Calibration is an essential step for improving the accuracy of simulations generated using hydrologic models. A key modeling decision is selecting the performance metric to be optimized. It has been common to use squared error performance metrics, or normalized variants such as Nash Sutcliffe efficiency (NSE), based on the idea that their squared-error nature will emphasize the estimates of high flows. However, we conclude that NSE based model calibrations actually result in poor reproduction of high-flow events, such as the annual peak flows that are used for flood frequency estimation. Overall, this work highlights the need for a deeper understanding of performance metric behavior and design in relation to the desired goals of model calibration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrology and Earth System Sciences

ISSN

1027-5606

e-ISSN

1607-7938

Svazek periodika

23

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

2601-2614

Kód UT WoS článku

000471880900001

EID výsledku v databázi Scopus

2-s2.0-85067447861