Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR029229 |
Simultaneous calibration of hydrologic model structure and parameters using a blended model | |
Robert Chlumsky; Juliane Mai; James R. Craig; Bryan A. Tolson | |
2021-04-20 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | The advent of hydrological modelling frameworks that support multiple model structures using the same software enables both model structure and model parameters to be calibrated and assessed. To date, the identification of optimal model structure has typically been performed manually. Here, a continuous (rather than discrete) treatment of model structure is used, which enables simultaneous automatic calibration of model structure and parameters using a conventional real‐valued decision variable optimization algorithm (the Dynamically Dimensioned Search algorithm, DDS). The method, referred to herein as Blended Model Structure Calibration (BMSC), relies upon the calculation of each hydrologic flux (e.g., for infiltration) as a weighted average of fluxes generated from multiple process algorithm options. This method is applied to 12 lumped MOPEX catchment models and compared to the calibration of 108 fixed model structures, representing all possible permutations of fixed model structures with the given process options in this study. The BMSC method consistently identified near‐optimal model structure (as evaluated using average model rank performance) at significantly lower computational cost than calibrating the collective of fixed structure models. The BMSC method also provides a useful tool in identifying dominant processes and model structures in catchments. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/324042 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Robert Chlumsky,Juliane Mai,James R. Craig,et al. Simultaneous calibration of hydrologic model structure and parameters using a blended model[J]. Water Resources Research,2021. |
APA | Robert Chlumsky,Juliane Mai,James R. Craig,&Bryan A. Tolson.(2021).Simultaneous calibration of hydrologic model structure and parameters using a blended model.Water Resources Research. |
MLA | Robert Chlumsky,et al."Simultaneous calibration of hydrologic model structure and parameters using a blended model".Water Resources Research (2021). |
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