A hybrid GIS-supported watershed modelling system: application to the Lake Erhai basin, China

Huang, Guohe; Liu, L.; Chakma, A.; Wu, Simon; Wang, X. H.; Yin, Yongyuan

doi:10.1080/02626669909492255

Cited by 16 publications

(3 citation statements)

References 15 publications

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“…It is now recognized that proper consideration of uncertainty in hydrological predictions is essential for the purposes of both research and operation modelling (Huang et al 1999, Liu and Gupta 2007, Qin et al 2007, Li et al 2011, Han et al 2012. Kumar and Merwade (2009) created 24 different watershed model configurations for two study areas in northern Indiana, used the SWAT auto-calibration tool to calibrate 14 parameters for simulating 7 years of daily streamflow records and obtained similar model outputs.…”

Section: Introductionmentioning

confidence: 99%

Effects of watershed subdivision level on semi-distributed hydrological simulations: case study of the SLURP model applied to the Xiangxi River watershed, China

Han

Huang

Zhang

et al. 2013

Hydrological Sciences Journal

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-P., 2013. Effects of watershed subdivision level on semi-distributed hydrological simulations: case study of the SLURP model applied to the Xiangxi River watershed, China. Hydrological Sciences Journal, 59 (1), 108-125. Abstract This study investigates the impacts of watershed subdivision on hydrological simulations. The SLURP (Semi-distributed Land Use-based Runoff Processes) model was employed in the Xiangxi River watershed, China, with eight watershed subdivision schemes. Under each scheme, the SLURP model was calibrated using both manual and automatic methods to simulate watershed hydrological processes over the period 1991-1998. The results indicate that model performance could be enhanced by increasing the degree of subdivision. However, there is a threshold level, beyond which no significant improvements can be obtained. The simulated water balance components and runoff contributions from different land types were found to vary among subdivision levels. Differences were slight when the watershed was divided into more than 73 sub-watersheds. These results were partly caused by the altitude-based precipitation correction, where the reduced generalization of terrain characteristics could lead to increasing consideration of small watersheds in the weighted Thiessen polygon technique; thus, the elevation-correction adjustments in deriving distributed meteorological inputs were increased. Parameter sensitivity analysis revealed that increasing the subdivision level was likely to enhance model efficiency. However, the difference became negligible among fine subdivisions. Although a threshold was identified in this study, determination of an appropriate subdivision level should also be based on the modelling objective, the quality of model inputs, the complexity of the watershed system and the resulting uncertainty.Key words hydrological modelling; sub-watershed; water balance component; land type; sensitivity; Three Gorges Reservoir Effets du niveau de subdivision du bassin versant sur les simulations hydrologiques semidistribuées: étude de cas sur le modèle SLURP appliqué au bassin versant de la rivière Xiangxi en Chine Résumé Cette étude examine les effets de la subdivision du bassin versant sur les simulations hydrologiques. Pour cela, nous avons appliqué le modèle SLURP (Semi-distributed Land Use-based Runoff ProcessesProcessus de ruissellement semi-distribués basés sur l'utilisation des sols) au bassin versant de la rivière Xiangxi avec huit schémas de subdivision du bassin. Pour chaque schéma, le modèle SLURP a été calé en utilisant des méthodes manuelles et automatiques pour simuler les processus hydrologiques du bassin au cours de la période 1991-1998. Les résultats indiquent que les performances du modèle ont pu être améliorées en augmentant le nombre de subdivisions. Cependant, il existe un seuil au-delà duquel aucune amélioration significative n'a pu être obtenue. Nous avons trouvé que les composantes du bilan hydrologique simulé et les contributions au ruissellement des types de sols varient selo...

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Section: Introductionmentioning

confidence: 99%

Effects of watershed subdivision level on semi-distributed hydrological simulations: case study of the SLURP model applied to the Xiangxi River watershed, China

Han

Huang

Zhang

et al. 2013

Hydrological Sciences Journal

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“…It is defined as a system for input, storage, manipulation, and output of geographically referenced data [17]. The GIS technology is used for managing spatial and non-spatial data, linking models, and providing interfaces between the models and their users [18].…”

Section: Gis Systemsmentioning

confidence: 99%

Decision Support System Development to Groundwater Management and Aquifer Vulnerability Assessment: Hydrogeological Information System of Monastir (HISM)

Hentati¹,

Fourati²,

Trabelsi³

et al. 2019

JGIS

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In Tunisia and particularly in Monastir region, groundwater constitutes the main source of water supply systems. A lot of problems are facing the water management authorities. In fact, the Moknine coastal aquifer highlights several qualitative and quantitative anomalies due to the irrigated perimeters extension (Teboulba, Bekalta), releases of harmful products from the textile industry (Ksar Hellal and Moknine), intense overexploitation and seawater intrusion. Thus, for groundwater resources management, a Decision Support System (DSS) is developed for the Monastir region. This Decision Support System (DSS) brings together, on a digital support, the data descriptive and graphical component for groundwater management. It is a hydrogeological relational database joined with a Hydrogeological Information System for the Monastir region (HISM) which enables fast and effective processing of large volumes of spatial data from multiple sources. The implementation of the Hydrogeological Information System is assured using Object-Oriented Programming (OOP). The "Unified Modeling Language" (UML) is an Object-Oriented Design (OOD) methodology which is choiced for data modeling. The application interfaces have been developed in Visual Basic (VB.net) within the Integrated Development Environment (IDE) from Microsoft Visual Studio. "DotSpatial" library integrated is used to manage the geographic information layers. The HISM contains thematic layers acquired through the vectorization of 22 topographic and geologic maps (1/50,000 and 1/25,000

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“…Weitere geologische GIS-Projekte in Yunnan wurden im Bereich der Hydrologie durchgeführt. Das GIS-gestützte Wasserscheidenmodel von Huang et al (1999) befaßt sich mit der Wasserverschmutzungskontrolle des Erhai-Sees östlich Dali. Shen et al (1999) untersuchten das Drainagesystem am Jinsha Jiang im Grenzbereich Yunnan/Sichuan und erstellten ein GIS-Projekt, mit dessen Hilfe die Evaluation des geologischen Untergrundes in bezug auf Gefahrenzonen und Gesteinsmassen-Stabilitäten ermöglicht wird…”

Section: Songpan-ganzi-faltengürtelunclassified

GIS-basierte Analyse der känozoischen Geodynamik und Mineralisationsgeschichte der östlichen Syntaxis des Himalaya (NW-Yunnan/ VR China)

Wagner¹

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A hybrid GIS-supported watershed modelling system: application to the Lake Erhai basin, China

Cited by 16 publications

References 15 publications

Effects of watershed subdivision level on semi-distributed hydrological simulations: case study of the SLURP model applied to the Xiangxi River watershed, China

Effects of watershed subdivision level on semi-distributed hydrological simulations: case study of the SLURP model applied to the Xiangxi River watershed, China

Decision Support System Development to Groundwater Management and Aquifer Vulnerability Assessment: Hydrogeological Information System of Monastir (HISM)

GIS-basierte Analyse der känozoischen Geodynamik und Mineralisationsgeschichte der östlichen Syntaxis des Himalaya (NW-Yunnan/ VR China)

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