Parametric uncertainty assessment in hydrological modeling using the generalized polynomial chaos expansion

Junjun Hu,Sheng Chen,Ali Behrangi,Huiling Yuan

Journal of Hydrology（2019）

引用 16|浏览8

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摘要

•Generalized polynomial chaos expansion (PCE) is applied to quantify uncertainty of hydrologic parameters.•PCE offers an efficient way of sampling without running original model.•Computational cost using the PCE approach is significantly reduced by 71% (20%) with PCE-2 (PCE-3) when compared to MC methodology.

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关键词

Polynomial chaos expansion,Collocation points,Hydrological model,Uncertainty quantification

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