Towards a more consistent eco-hydrological modelling through multi-objective calibration: a case study in the Andean Vilcanota River basin, Peru

被引:27
作者
Fernandez-Palomino, Carlos Antonio [1 ,2 ]
Hattermann, Fred F. [1 ]
Krysanova, Valentina [1 ]
Vega-Jacome, Fiorella [3 ]
Bronstert, Axel [2 ,4 ]
机构
[1] Potsdam Inst Climate Impact Res, Res Dept Climate Resilience 2, Potsdam, Germany
[2] Univ Potsdam, Inst Environm Sci & Geog, Potsdam, Germany
[3] Serv Nacl Meteorol & Hidrol Peru, Hidrol Estudios & Invest Hidrol, Lima, Peru
[4] Potsdam Inst Climate Impact Res, Water Sci Grp, Potsdam, Germany
来源
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 2021年 / 66卷 / 01期
关键词
Andes; eco-hydrology; SWAT; hydrological signatures; remote sensing; equifinality; WATER;
D O I
10.1080/02626667.2020.1846740
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
Most hydrological studies rely on a model calibrated using discharge alone. However, judging the model reliability based on such calibration is problematic, as it does not guarantee the correct representation of internal hydrological processes. This study aims (a) to develop a comprehensive multi-objective calibration framework using remote sensing vegetation data and hydrological signatures (flow duration curve - FDC, and baseflow index) in addition to discharge, and (b) to apply this framework for calibration of the Soil and Water Assessment Tool (SWAT) in a typical Andean catchment. Overall, our calibration approach outperformed traditional discharge-based and FDC signature-based calibration strategies in terms of vegetation, streamflow, and flow partitioning simulation. New hydrological insights for the region are the following: baseflow is the main component of the streamflow sustaining the long dry-season flow, and pasture areas offer higher water yield and baseflow than other land-cover types. The proposed approach could be used in other data-scarce regions with complex topography.
引用
收藏
页码:59 / 74
页数:16
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