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首页> 外文期刊>Journal of Hydroinformatics >The search for orthogonal hydrological modelling metrics: a case study of 20 monitoring stations in Colombia
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The search for orthogonal hydrological modelling metrics: a case study of 20 monitoring stations in Colombia

机译：正交水文建模指标的搜索：以哥伦比亚20个监测站​​为例

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摘要

This paper presents a Colombian-based study on hydrological modelling metrics, arguing that redundancies and overlap in statistical assessment can be resolved using principal component analysis. Numerous statistical scores for optimal operator water level models developed at 20 hydrological monitoring stations, producing daily, weekly and ten-day forecasts, are first reduced to a set of five composite orthogonal metrics that are not interdependent. Each orthogonal component is next replaced by a single surrogate measure, selected from a set of several original metrics that are strongly related to it, and that in overall terms delivered limited losses with regard to 'explained variance'. The surrogates are thereafter amalgamated to construct a single measure of assessment based on Ideal Point Error. Depending on the forecast period, the use of three or four traditional metrics to deliver a combined evaluation vector, is the minimum recommended set of scores that is needed for analysis to establish the operational performance at a particular station in the gauging network under test.
机译：本文提出了一项基于哥伦比亚的水文建模指标研究，认为可以使用主成分分析来解决统计评估中的冗余和重叠。首先将在20个水文监测站开发的最佳操作员水位模型的许多统计得分（产生每日，每周和十天的预报）减少为一组五个相互不依赖的正交正交指标。接下来，将每个正交分量替换为一个单独的替代度量，该替代度量是从一组与之密切相关的原始度量中选择的，并且就“解释方差”而言，总体而言，传递的损失有限。此后，将代理人合并，以基于理想点误差构建单一的评估指标。根据预测时间段，使用三个或四个传统指标来提供组合的评估向量是为在被测网络中特定站点建立运行性能而进行分析所需的最小建议分数集。

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  • 来源
    《Journal of Hydroinformatics》 |2011年第3期|p.429-442|共14页
  • 作者

    E. Dominguez; C. W. Dawson; A. Ramirez; R. J. Abrahart;

  • 作者单位

    Departamento de Ecologia y Territorio,Pontificia universidad Javeriana,Transv. 4 # 42-00 Piso 8,Bogota, Colombia and CeiBA - complejidad,CRA. 1 Este # 18A - 70,Bogota, Colombia;

    Department of Computer Science, Loughborough University, Loughborough LE11 3TU,UK;

    Departamento de Ecologia y Territorio,Pontificia universidad Javeriana,Transv. 4 # 42-00 Piso 8,Bogota, Colombia and CeiBA - complejidad,CRA. 1 Este # 18A - 70,Bogota, Colombia;

    School of Geography, university of Nottingham, Nottingham NG7 2RD,UK;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hydrological modelling; ideal point error; orthogonal metrics; principal component analysis;

    机译：水文模拟;理想点误差正交指标;主成分分析;

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