scholarly journals Flood Control and Aquifer Recharge Effects of Sponge City: A Case Study in North China

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 92
Author(s):  
Bo Meng ◽  
Mingjie Li ◽  
Xinqiang Du ◽  
Xueyan Ye
Keyword(s):  
Surface Water ◽  
Stormwater Management ◽  
Flood Control ◽  
Flow Model ◽  
Management Model ◽  
Groundwater Flow Model ◽  
Aquifer Recharge ◽  
Sponge City ◽  
Surface Water Bodies ◽  
City Design

Sponge City is an integrated urban stormwater management approach and practice to tackle waterlogging, flooding, water scarcity, and their related problems. Despite many positive effects of Sponge City on flood control that have been investigated and revealed, the effect on aquifer recharge is still less known. Considering maximizing the function of natural elements such as surface water bodies and subsurface storage space, to minimize the use of a gray drainage system, a Sponge City design was proposed to substitute the planning development scheme in the study area. The stormwater management model of SWMM (storm water management model) and the groundwater flow model of MODFlow (Modular Three-dimensional Finite-difference Groundwater Flow Model) were adopted to evaluate the flood-control effect and aquifer-recharge effect, respectively. Compared with the traditional planning scenario, the peak runoff is approximately 92% less than that under the traditional planning scenario under the condition of a 5-year return period. Due to the increase in impervious areas of urban construction, the total aquifer recharge from precipitation and surface water bodies was decreased both in the present planning scenario and the Sponge City design scenario. However, the Sponge City design has a positive impact on maintaining groundwater level stabilization and even raises the groundwater level in some specific areas where stormwater seepage infrastructure is located.

Development, verification and validation of a three-dimensional groundwater flow model for ESM

2020 ◽  
Author(s):  
Yosuke Miura ◽  
Kei Yoshimura
Keyword(s):  
Surface Water ◽  
Groundwater Flow ◽  
Arid Region ◽  
Flow Model ◽  
Three Dimensional ◽  
Central Valley ◽  
Groundwater Flow Model ◽  
The World ◽  
Semi Arid Region ◽  
Semi Arid

<p>  Groundwater is one of the important water resources in the world and Groundwater flow is linked with surface water strongly. Many studies on groundwater are conducted in a local scale or focused on affect-ing surface water in a global scale. In current Earth System Model, fixed and constant one-dimensional vertical grid is used in unsaturated zone. In real world, the thickness of unsatu-rated zone depends on the climate and it is considered that there are limitations of runoff process expression especially in humid mountainous area. In this study, we developed three-dimensional groundwater flow model as ESM which can represent the variably saturated flow and groundwa-ter storativity. Since, this model is eventually coupled with Land Surface Model, it is possible to track the underground water flow using boundary conditions of recharge and surface water level.</p><p>  We verified accuracy of the code using one & two-dimensional infiltration problem, three-dimensional groundwater pumping problem, and hillslope problem. Our model was com-pared with other researchers results, experimental data, analytical solutions. In consequence, our model was able to get accurate results. Subsequently, we conducted validation in Central valley, California, USA. The reason of chose this region is that this region is a semi-arid region, ground-water is used for irrigation and well pumping data is accessible. Over the world, groundwater use is more important in arid or semi-arid region than in humid area, and also highly utilized as agri-cultural water. Central valley has representativeness of groundwater use. In addition, the famous groundwater model, MODFLOW, was used to evaluate water resource management in this region. As well as MODFLOW, we calibrated hydraulic conductivity with 24 observation sites during 1961 - 2003 to validate. 156 observation points excluded 24 calibration points were used as vali-dation in same period. In the near future, we will confirm the difference between one-dimension and three dimensions setting of the unsaturated zone with respect to runoff process.</p>

Towards a universal stormwater management practice for arid zone residential developments

1995 ◽  
Vol 32 (1) ◽  
pp. 15-24 ◽  
Author(s):  
John R. Argue
Keyword(s):  
Stormwater Management ◽  
Flood Control ◽  
Best Practice ◽  
Arid Zone ◽  
Management Practice ◽  
South Australia ◽  
Aquifer Recharge ◽  
Urban Flood ◽  
Wide Range ◽  
The Matrix

The principal centres of research and development in stormwater management are in the World's temperate regions for which a wide range of best practices are already known. The article suggests a strategy for improving performance in urban flood control, pollution minimisation and stormwater harvesting in arid/semi-arid regions. The basis of the approach is, firstly, systematic documentation of performances in strategic project cases – by regions – followed by integration of these into a universal best practice. A documentation matrix for stormwater management cases in Adelaide, South Australia, is described. Factors considered in the matrix include devices and treatments, development types and forms, aquifer recharge capability and soil types. The matrix will provide, progressively, vital information for planners and designers and guide researchers in the most productive use of limited monitoring resources.

Application of the stormwater management model to a piedmont city: a case study of Jinan City, China

2014 ◽  
Vol 70 (5) ◽  
pp. 858-864 ◽  
Author(s):  
Haijun Yu ◽  
Guoru Huang ◽  
Chuanhao Wu
Keyword(s):  
Stormwater Management ◽  
Flood Control ◽  
Large Scale ◽  
Drainage System ◽  
Control Measures ◽  
Management Model ◽  
Model Parameters ◽  
Total Runoff ◽  
Stormwater Management Model ◽  
The Impact

The stormwater management model (SWMM) was adapted and calibrated to Jinan, a typical piedmont city in China, to verify the large-scale applicability of the model to piedmont cities. Fourteen storms were used for model calibration and validation. The calibrated model predicted the measured data with satisfactory accuracy and reliability. A sensitivity analysis was then conducted to evaluate the impact of the model parameters; it showed that: (1) the model outputs were most sensitive to imperviousness and conduit roughness; and (2) infiltration parameters and depression storage play an important role in total runoff and peak flow. The urban drainage system of Jinan was assessed using urban design storms with the calibrated model, and the effects of engineered flood control measures were evaluated. The overall results demonstrate that SWMM is applicable on a large scale to piedmont cities.

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