Change of rainfall–runoff processes in urban areas due to high-rise buildings

Yoo, Chulsang; Cho, Eunsaem; Na, Wooyoung; Kang, Minseok; Lee, Munseok

doi:10.1016/j.jhydrol.2021.126155

Cited by 14 publications

(6 citation statements)

References 50 publications

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“…This effect on precipitation patterns at the ground might be less relevant than influences of urban structures on the boundary-layer clouds, as found by Ferner et al (2022). Nonetheless, the rainfall interception by high-rise buildings should be additionally considered in urban hydrological studies for megacities, as mentioned by Yoo et al (2021). Cho et al (2020) proposed an empirical equation for estimating the amount of rainfall intercepted by a building, which depends on the rainfall intensity observed at the ground, the width and the height of the building wall, and the wind speed.…”

Section: Canopy Effects On Water Balancementioning

confidence: 99%

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A conceptual model for a generalized canopy parametrization for atmospheric models

Cheng

Schlünzen

2023

Quart J Royal Meteoro Soc

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The forest canopy and the urban canopy are the two vertically most extended canopies and have a great influence on boundary‐layer processes. Many studies in the past have analyzed and discussed forest canopy effects (FCEs) and urban canopy effects (UCEs) on aerodynamics, thermodynamics, hydrology, and air quality individually. Few studies have compared them. To better understand to what extent FCEs differ from UCEs, this study carries out a qualitative assessment of FCEs and UCEs in comparison with grass‐covered surfaces. In addition, as canopy effects are represented in atmospheric models by employing canopy parametrizations, this study assesses the existing parametrizations with respect to their ability to consider the relevant canopy processes. For parametrizations being globally applicable and for multiple types of forest, urban, and forested urban canopies, it is desirable to treat both forest and urban canopies in models in a unified way. In this context, a conceptual model for a generalized canopy parametrization (GeCap) has been developed based on the assessments of this article. It focuses on the interactions between canopy characteristics, processes, and fluxes as they relate to canopy effects. GeCap can serve as a methodological framework for an integrated analysis of properties and dynamics of canopy systems and for the design of forested urban canopy parametrizations.

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Section: Canopy Effects On Water Balancementioning

confidence: 99%

“…Nonetheless, the rainfall interception by high‐rise buildings should be additionally considered in urban hydrological studies for megacities, as mentioned by Yoo et al . (2021). Cho et al .…”

Section: Canopy Processes and Effectsmentioning

confidence: 99%

A conceptual model for a generalized canopy parametrization for atmospheric models

Cheng

Schlünzen

2023

Quart J Royal Meteoro Soc

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“…The initial stage of stormwater modelling for urbanized catchments involves establishing relationships between rainfall parameters and surface runoff hydrographs for each specific subcatchment [ [1] , [2] , [3] , [4] ]. Surface runoff hydrographs from subcatchments serve as crucial input functions that form the runoff hydrographs for urban catchments of varying scales, configurations, and complexities [ [5] , [6] , [7] , [8] , [9] ]. Methods for modelling surface runoff should comprehensively consider a multitude of factors and specific characteristics of the subcatchment, including its configuration [ [10] , [11] , [12] , [13] ], absolute dimensions [ 14 , 15 ], slope distribution at the subcatchment's area [ 16 , 17 ], surface cover types and their spatial distribution [ 18 , 19 ], correlation between the total and effective imperviousness [ 2 , 4 , 20 , 21 ], infiltration properties of soils [ 11 , [22] , [23] , [24] ] etc.…”

Section: Introductionmentioning

confidence: 99%

Experimental surface runoff hydrographs from linear impervious subcatchments for rainfalls of extremely high intensity

Zhuk,

Vovk,

Popadiuk

et al. 2024

Heliyon

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“…Since the runoff from the wall of the building generally flows directly into the drainage system through dispersal and cut-off ditches around buildings, the impact of the rainfall inclination angle on the rainfall-runoff process in an urban high-rise building area cannot be ignored. Yoo et al (2021) revealed the impact of high-rise buildings on runoff hydrographs through a newly improved hydrological model and a laboratory experiment. However, their work ignored the infiltration and focused on changes in peak flow mainly caused by changes in flow path in high-rise building areas.…”

Section: Introductionmentioning

confidence: 99%

The impact of wind on the rainfall–runoff relationship in urban high-rise building areas

Gao

Yang

Han

et al. 2021

Hydrol. Earth Syst. Sci.

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Abstract. Wind drift has a significant influence on the rainfall–runoff relationship in urban high-rise building areas since the oblique rainfall caused by the wind drift can interact with the building walls. However, the impact of the rainfall inclination angle on the rainfall–runoff process in urban high-rise building areas has not been studied. In this study, the relationship between wind and the rainfall–runoff process in such areas was explored. A theoretical framework has been developed to describe their relationship, including a computational fluid dynamics (CFD) method to obtain the relationship between wind speed and rainfall inclination and a newly derived equation to describe the relationship between rainfall inclination and the runoff coefficient. Subsequently, a laboratory scale model experiment was conducted to verify the proposed framework. The main results are that (1) the runoff coefficient calculated by the proposed theoretical framework is highly consistent with that obtained from the laboratory experiment, (2) the runoff coefficient of urban high-rise building areas increases with wind speed and the increase rate is linear with the tangent of the rainfall inclination angle, and (3) the change in the runoff coefficient for the experiment with larger raindrop is 0.047 when the wind speed increases from 0 to 5.9 m s−1, while that for the experiment with smaller raindrop is 0.064, which means that the rainfall with larger droplets is less influenced by the wind.

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Change of rainfall–runoff processes in urban areas due to high-rise buildings

Cited by 14 publications

References 50 publications

A conceptual model for a generalized canopy parametrization for atmospheric models

A conceptual model for a generalized canopy parametrization for atmospheric models

Experimental surface runoff hydrographs from linear impervious subcatchments for rainfalls of extremely high intensity

The impact of wind on the rainfall–runoff relationship in urban high-rise building areas

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