Simulation of the impacts of land-use change on surface runoff of Lai Nullah Basin in Islamabad, Pakistan

Ali, Muhammad; Khan, Sohail; Aslam, Irfan; Khan, Zuhair S.

doi:10.1016/j.landurbplan.2011.05.006

Cited by 145 publications

(71 citation statements)

References 31 publications

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“…Land cover change between 1995 and 2008 has produced 11.1 % of peak discharge increment and 15.3 % of excessive flood volume. Different with studies that suggested urbanization could forward the peak time (Chen et al, 2009;Ali et al, 2011;Sanyal et al, 2014), according to the simulation results, the peak time under 2008 land cover appeared later than that under 1995 land cover in the catchment. This also implied that the impact of urbanization on runoff have regional limitations, and researches in different watersheds may yield different results (Fox et al, 2012;Warburton et al, 2012).…”

Section: Impact Of Land Cover Changes On Runoffcontrasting

confidence: 94%

Analyzing the effect of urbanization on flood characteristics at catchment levels

et al. 2015

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Abstract. It is increasingly recognized that the land-use change, especially urbanization has influenced hydrological attributes intensely. Flood characteristics variation could likewise increase flood risks and pose higher demand on water management. The paper aims to evaluate temporal and spatial processes of urbanization affecting flood events at catchment level. The study sites were Xiaoqinhe catchment and its sub-catchments, a part of lower Yellow river basin in northern China. Historic cities Jinan and Zibo in the area have experienced dramatic urban expansion in recent decades, about 5 % growth of urban build-up area annually from 1990s to 2010s, and also pressed alarm for increasing flood disasters. In the paper, a HEC-HMS model was set up to simulate flood processes for different land-use scenarios. The possible effects of urbanization on flood characteristics were checked in study catchment and its sub-catchments.

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Section: Impact Of Land Cover Changes On Runoffcontrasting

confidence: 94%

Analyzing the effect of urbanization on flood characteristics at catchment levels

et al. 2015

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“…The details of the models employed in the two schemes are described in the following sections. The runoff-volume model of the initial and constant-rate has been successfully applied in a fair number of previous studies [22][23][24]. The basic concept of the model is that the maximum potential infiltration rate, fc, is constant throughout a flood event.…”

Section: Modeling Schemes and Methodologymentioning

confidence: 99%

Flood-Runoff in Semi-Arid and Sub-Humid Regions, a Case Study: A Simulation of Jianghe Watershed in Northern China

Jin

Liang

Wang

et al. 2015

Water

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This paper presents a modeling application of surface runoff using the Hydrologic Modelling System (HEC-HMS). A case study was carried out for the Jianghe watershed, a typical semi-arid and sub-humid geo-climatic region in northern China. Two modeling schemes using different descriptive sub-mechanism models provided by HEC-HMS for runoff volume, direct runoff and routing (channel flow) were investigated. The modeling results were compared with historical observation data. This work shows that HEC-HMS can be a suitable modeling tool for specific situations in China. With the appropriate selection of the sub-mechanism models, HEC-HMS can be applied to various situations, including the typical semi-arid and sub-humid conditions in northern China.

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“…It is a deterministic, semi-distributed, event-based/continuous, mathematically based (conceptual) model that adopts other distinct models to characterize each element of the runoff process (evaporation, surface runoff, infiltration, and groundwater recharge). Therefore, this one model contains within itself models that calculate runoff volume, models of direct runoff, models of base flow, and models of channel flow [23][24][25]. This model takes into account the spatial distribution of basin features by partitioning a basin into sub-basins that are considered homogenous in land use, soil type, and other catchment features.…”

Section: B Justification For Using Hec-hmsmentioning

confidence: 99%

“…This model takes into account the spatial distribution of basin features by partitioning a basin into sub-basins that are considered homogenous in land use, soil type, and other catchment features. Furthermore, spatial data sets can be organized in GIS platforms using HEC-GeoHMS and then directly imported into HEC-HMS [25]. DOI: 10.5963/JWRHE0503004…”

Section: B Justification For Using Hec-hmsmentioning

confidence: 99%

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Hydrological Modeling in A Semi-Arid Region Using HEC-HMS

Wang¹,

Zhang²,

Baddoo³

2016

JWRHE

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Abstract-In this study, the Hydrologic Engineering Centre's Hydrologic Modeling System (HEC-HMS) model was employed to simulate runoff in the semi-arid region of northwestern China, specifically the Hailiutu watershed. The Hydrologic Engineering Centre's Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) was used in conjunction with ArcHydro tools in an ArcMap geographical information system (GIS) environment to create input files of the catchment physical characteristics for the HMS model. The model was calibrated for the time period of 1978-1992. The results showed that the model systematically underestimated winter and spring hydrographs as well as a few summer flows. This was due to the discrepancy between the nonlinear rainfall-runoff response in the watershed and the linear structure of the Soil Moisture Accounting (SMA) model used. Also, the results pointed out that, due to data unavailability on hydraulic engineering in the Hailiutu watershed, the model faced challenges in simulating runoff properly and therefore could not be validated. Ultimately, the model's general performance in simulating runoff in the Hailiutu watershed was found unsatisfactory.

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Simulation of the impacts of land-use change on surface runoff of Lai Nullah Basin in Islamabad, Pakistan

Cited by 145 publications

References 31 publications

Analyzing the effect of urbanization on flood characteristics at catchment levels

Analyzing the effect of urbanization on flood characteristics at catchment levels

Flood-Runoff in Semi-Arid and Sub-Humid Regions, a Case Study: A Simulation of Jianghe Watershed in Northern China

Hydrological Modeling in A Semi-Arid Region Using HEC-HMS

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