Procedures for estimation of modelling uncertainty in air quality assessment

被引:92
作者
Borrego, C. [1 ]
Monteiro, A. [1 ]
Ferreira, J. [1 ]
Miranda, A. I. [1 ]
Costa, A. M. [1 ]
Carvalho, A. C. [1 ]
Lopes, M. [1 ]
机构
[1] Univ Aveiro, Dept Ambiente & Ordenamento, CESAM, P-3810193 Aveiro, Portugal
关键词
air quality; modelling; uncertainty; quality indicators;
D O I
10.1016/j.envint.2007.12.005
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The main objectives of this work focus, firstly, on a review of the current existent methodologies to estimate air quality modelling uncertainty, and, secondly, in the preparation of guidelines for modelling uncertainty estimation, which can be used by local and regional authorities responsible for air quality management. From the application exercise, it was concluded that it is possible to define a subset of statistical parameters able to reproduce the general uncertainties estimation. Concerning the quality indicators defined by EU directives, the results show that the legislated uncertainty estimation measures are ambiguous and inadequate in several aspects, mainly in what concerns the error measures for hourly and daily indicators based on the highest observed concentration. A relative error at the percentile correspondent to the allowed number of exceedances of the limit value was suggested and tested, showing that is a more robust and appropriate parameter for model performance evaluation. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:613 / 620
页数:8
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