首页|Heteroscedastic and symmetric efficiency for hydrological model evaluation criteria

Heteroscedastic and symmetric efficiency for hydrological model evaluation criteria

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  • NETL
  • NSTL
  • Iwa Publishing
Evaluation criteria play a key role in assessing the performances of hydrological models. Most previous criteria are based on the standard least square method, which assumes model residuals to be homoscedastic and is, therefore, not suitable for assessing cases with heteroscedastic residuals. Here, we compared a heteroscedastic and symmetric efficiency (HSE) criterion with the Nash-Sutcliffe efficiency (NSE) and the heteroscedastic maximum-likelihood estimator (HMLE) by running a monthly water balance model with four parameters (i.e., the abcd model) in 138 basins located in the continental United States derived from the Model Parameter Estimation Experiment dataset. The results show that compared to the NSE, the HSE and HMLE are both more effective for stabilizing variance and producing more uniform performances with flow magnitude, and the latter is slightly more effective than the former on stabilizing the residual heteroscedasticity, with the aid of an additional parameter.

conceptual hydrological modelgoodness of fitheteroscedasticitymetric spacemodel performance assessment

Zhan, Chesheng、Han, Jian、Zou, Lei、Sun, Fubao、Wang, Tiejun

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Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China

Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China

Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China

2019

10.2166/nh.2019.121

Hydrology research: An international journal

Hydrology research: An international journal

EIISTP
ISSN：0029-1277
年,卷(期)：2019.50(5/6)
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