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引用本文:靳晓莉,张奇,许崇育.一个概念性水文模型的参数区域化研究:以东江流域为例.湖泊科学,2008,20(6):723-732. DOI:10.18307/2008.0609
JIN Xiao-li,ZHANG Qi,XU Chong-yu.Regionalization study of a conceptual hydrological model in the Donjiang Basin. J. Lake Sci.2008,20(6):723-732. DOI:10.18307/2008.0609
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一个概念性水文模型的参数区域化研究:以东江流域为例
靳晓莉1,2, 张奇1, 许崇育1,3
1.中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008;2.中国科学院研究生院, 北京 100049;3.奥斯陆大学地球科学系, 奥斯陆 0316, 挪威
摘要:
由于大尺度水文模型和无资料区水文研究是当前国际水文研究的重点和难点,通过参数区域化方法来估计大尺度区域和无资料区的模型参数值成为了研究的热点之一.将HBV模型应用于东江流域及其子流域,采用代理流域法和全局平均法来估计该区域内无资料流域的模型参数.研究表明:HBV模型能较好得用于东江流域径流模拟;交叉检验中,较小的R2和ME值对应的参数,其转移效果不一定比较大的R2和ME值对应的参数转移效果差;全局平均法中,面积权重平均值和泰森多边形插值后平均并不能明显改进子流域算术平均值估计无资料流域的模型参数的模拟结果;两者都能有效用于东江流域无资料流域的参数估计,且效果相差不大.
关键词:  参数区域化  无资料区  概念性水文模型  东江流域
DOI:10.18307/2008.0609
分类号:
基金项目:中国科学院“百人计划”项目;香港研究资助局项目(CUHK4627/05H)联合资助
Regionalization study of a conceptual hydrological model in the Donjiang Basin
JIN Xiao-li1,2, ZHANG Qi1, XU Chong-yu1,3
1.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China;2.Graduate School of Chinese Academy of Sciences, Beijing 100049, P.R.China;3.Department of Geosciences, University of Oslo, P.O. Box 1047 Blindern, 0316 Oslo, Norway
Abstract:
The conceptual rainfall-runoff model, HBV, was applied to Dongjiang basin and its 13 sub-basins for the purposes of examining the applicability of this well-known model in south China in order to explore the possibility of transferring the calibrated parameter values to ungauged basins. For testing the applicability of the model in gauged basins, an automatic optimization method was used for model calibration. For testing the transferability of the parameter values to ungauged basins, two parameter regionalization methods (proxy basin and global mean) to determine the model parameters for ungauged catchments in the study area were investigated. The results showed that: (1) the HBV model worked well in the Dongjiang basin with average R2 higher than 0.82 for using calibrated values;(2) Transferring the parameter values with higher R2 and ME during cross-basins tests into the hypothetic ungaged catchments did not result in better model simulations than those with lower corresponding values;(3) Neither area-weighted-mean nor Thiessen-interpolated-mean approach could markedly improve the precision of parameters estimation by arithmetic mean value. It was concluded that both regionalization methods could effectively estimate parameters for ungauged catchments in the Dongjiang basin, leading to little discrepancy in the two models.
Key words:  Parameter regionalization  ungaged catchments  conceptual hydrological model  Dongjiang Basin
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