Approach for Analysis of Land-Cover Changes and Their Impact on Flooding Regime

Shrestha, Badri Bhakta

doi:10.3390/quat2030027

Cited by 14 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The flood-risk increase may be due to the expansion of building areas. The excessive development of the urban regions dominated by buildings and roads may reduce infiltration rates due to an impervious area increase [6]. The results between flood simulation with existing land cover and Kedungsepur at the Garang watershed, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Flood characteristics analyses in the Jratunseluna river basin due to the impact of Kedungsepur national strategic area development

Hanifah,

Mawandha,

Abiy

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The area of the Jratunseluna river basin is categorized as a high-risk flood vulnerability. The urban development plan can worsen this condition through Kedungsepur national strategic area. The objective of this study is to identify flood characteristics in Jratunseluna river basin caused by the alteration of land use due to Kedungsepur national strategic area development through rainfall-runoff 2D simulation. The RRI 2D model was chosen because it could simulate flood inundation comprehensively in all river systems while the other models such as HEC-HMS, TOPMODEL, and Tank models have a limitation on it. The input data used for the RRI model were rainfall data, topography (DEM), and land use maps. The rain data used in the simulation was the Global Precipitation Measurement (GPM) from 2010 to 2020. The study results indicate that the flood risk level would increase during the implementation of the Kedungsepur national strategic area development. The flood duration and peak discharge increase mainly characterize the increase in flood risk. The most significant increase in peak discharge among the four outlets is obtained in the Garang watershed. In the case of a 2-year flood, the peak discharge increased by 44.91% from 262.18 m3/s to 379.92 m3/s and for the case of a 50-year flood, the peak discharge increased by 54.34% from 331.63 m3/s to 511.83 m3/.

show abstract

Section: Resultsmentioning

confidence: 99%

Flood characteristics analyses in the Jratunseluna river basin due to the impact of Kedungsepur national strategic area development

Hanifah,

Mawandha,

Abiy

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Runoff usually increases in the middle and low areas due to anthropogenic activities (Shrestha, 2019). On the other hand, increasing development in LU practice in catchments may increase urban flooding.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, in most of the lowlands with multiple human activities, a runoff will increase in the future, especially in urban areas. Also, this feature would be increased runoff in an urban area (Shrestha, 2019).…”

Section: Resultsmentioning

confidence: 99%

The Impacts of Land Use Changes in Urban Hydrology, Runoff and Flooding: A Review

Alshammari¹,

Rahman²,

Rainis³

et al. 2023

CUS

View full text Add to dashboard Cite

The issue of Land Use (LU) change has received considerable critical attention because it is one of the most significant factors caused by human activities worldwide. Recent critical changes in this direction have affected urban hydrology. LU change affects water resources and hydrological characteristics such as runoff and urban flooding. The development of LU causes a rapid increase in impermeable surfaces, increasing the flooding rate. LU also plays a vital role in extending water drainage, groundwater intrusion, and flooding during and after rainfall. This paper aims to investigate LU change impacts on runoff and urban flooding. This review focused on most articles, conference papers, and book chapters published in SCOPUS, including Google Scholar. The study was limitation to the last published from 2017-2021 and also extended some published theories for different years published. In addition, in the short and long term, the development of LU affects the environment, and most factors are involved at a catchment level. However, there is a strong relationship between human activities at the catchment level and runoff. The study concluded that LU strongly influences topography and the landscape in arid, semi-arid, and humid zones. This is why runoff and water distribution happen in urban areas. Furthermore, this study found that builtup area is a critical factor that increases urban flood risk, especially in lowlands along floodplains. It is common for the frequency of floods to become more severe due to a rapid increase in impervious surfaces brought on by urbanisation, increasing runoff. The review concludes that runoff affects by catchment size and its condition. Finally, humans can be reduced runoff and flood risk with a sensibility strategy.

show abstract

Evaluation of the Vertical Accuracy of Open Access Digital Elevation Models across Different Physiographic Regions and River Basins of Nepal

Karki

Acharya

Gautam

2021

Preprint

View full text Add to dashboard Cite

Approach for Analysis of Land-Cover Changes and Their Impact on Flooding Regime

Cited by 14 publications

References 25 publications

Flood characteristics analyses in the Jratunseluna river basin due to the impact of Kedungsepur national strategic area development

Flood characteristics analyses in the Jratunseluna river basin due to the impact of Kedungsepur national strategic area development

The Impacts of Land Use Changes in Urban Hydrology, Runoff and Flooding: A Review

Evaluation of the Vertical Accuracy of Open Access Digital Elevation Models across Different Physiographic Regions and River Basins of Nepal

Contact Info

Product

Resources

About