Evaluation of seasonal and spatial variations of lumped water balance model sensitivity to precipitation data errors
文献类型：期刊论文
| 作者 | Xu, CY; Tunemar, L; Chen, YQD; Singh, VP |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2006 |
| 卷号 | 324期号:1-4页码:80-93 |
| 关键词 | Lumped Water Model Sensitivity Data Errors Systematic Random |
| ISSN号 | 0022-1694 |
| 英文摘要 | Sensitivity of hydrological models to input data errors have been reported in the literature for particular models on a single or a few catchments. A more important issue, i.e. how model's response to input data error changes as the catchment conditions change has not been addressed previously. This study investigates the seasonal and spatial effects, of precipitation data errors on the performance of conceptual hydrological models. For this study, a monthly conceptual water balance model, NOPEX-6, was applied to 26 catchments in the Malaren basin in Central Sweden. Both systematic and random errors were considered. For the systematic errors, 5-15% of mean monthly precipitation values were added to the original precipitation to form the corrupted input scenarios. Random values were generated by Monte Carlo simulation and were assumed to be (1) independent between months, and (2) distributed according to a Gaussian law of zero mean and constant standard deviation that were taken as 5, 10, 15, 20, and 25% of the mean monthly standard deviation of precipitation. The results show that the response of the model parameters and model performance depends, among others, on the type of the error, the magnitude of the error, physical characteristics of the catchment, and the season of the year. In particular, the model appears less sensitive to the random error than to the systematic error. The catchments with smaller values of runoff coefficients were more influenced by input data errors than were the catchments with higher values. Dry months were more sensitive to precipitation errors than were wet months. Recalibration of the model with erroneous data compensated in part for the data errors by altering the model parameters. (c) 2005 Elsevier B.V. All rights reserved. |
| 公开日期 | 2012-03-08 |
| 源URL | [http://159.226.73.51/handle/332005/2967]  |
| 专题 | 南京地理与湖泊研究所_湖泊室 |
| 推荐引用方式 GB/T 7714 | Xu, CY,Tunemar, L,Chen, YQD,et al. Evaluation of seasonal and spatial variations of lumped water balance model sensitivity to precipitation data errors[J]. JOURNAL OF HYDROLOGY,2006,324(1-4):80-93. |
| APA | Xu, CY,Tunemar, L,Chen, YQD,&Singh, VP.(2006).Evaluation of seasonal and spatial variations of lumped water balance model sensitivity to precipitation data errors.JOURNAL OF HYDROLOGY,324(1-4),80-93. |
| MLA | Xu, CY,et al."Evaluation of seasonal and spatial variations of lumped water balance model sensitivity to precipitation data errors".JOURNAL OF HYDROLOGY 324.1-4(2006):80-93. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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