Sazali Osman , Lingfang Chen , Abdul Hafiz Mohammad , Lixue Xing , Yangbo Chen
{"title":"Flood modeling of Sungai Pinang Watershed under the impact of urbanization","authors":"Sazali Osman , Lingfang Chen , Abdul Hafiz Mohammad , Lixue Xing , Yangbo Chen","doi":"10.1016/j.tcrr.2021.06.001","DOIUrl":null,"url":null,"abstract":"<div><p>Urbanization has been a worldwide development trend, which regulates river courses, impervious surfaces and drainage systems. Urbanization causes hydrological effects, including increased runoff volumes, peak discharges and flow concentrations. This manuscript selects the Malaysian Sungai Pinang watershed as a case study to illustrate these land use, channel and flooding changes of Asian coastal cities. The Landsat satellite remote sensing images were first used to estimate the land use/land cover changes of the Sungai Pinang watershed by using SVM algorithm, and the results shows the urbanization was very rapid in the past decades, with the urbanization rate reached 46.41% in 2018 based on the build area rate. River channel characteristics also changed significantly, from natural river to concrete channel. Some flood resilience measures for coastal cities experiencing urbanization are also proposed for development and flood mitigation. Moreover, a flood forecasting model of the Sungai Pinang watershed is established herein. The simulation results of the Liuxihe model constructed in this study conforms to hydrological regularities and can provide a technical reference for flood control and disaster reduction. However, it is necessary to pay attention to the uncertainty of the forecast results.</p></div>","PeriodicalId":44442,"journal":{"name":"Tropical Cyclone Research and Review","volume":"10 2","pages":"Pages 96-105"},"PeriodicalIF":2.4000,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.tcrr.2021.06.001","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tropical Cyclone Research and Review","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S222560322100014X","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METEOROLOGY & ATMOSPHERIC SCIENCES","Score":null,"Total":0}
引用次数: 6
Abstract
Urbanization has been a worldwide development trend, which regulates river courses, impervious surfaces and drainage systems. Urbanization causes hydrological effects, including increased runoff volumes, peak discharges and flow concentrations. This manuscript selects the Malaysian Sungai Pinang watershed as a case study to illustrate these land use, channel and flooding changes of Asian coastal cities. The Landsat satellite remote sensing images were first used to estimate the land use/land cover changes of the Sungai Pinang watershed by using SVM algorithm, and the results shows the urbanization was very rapid in the past decades, with the urbanization rate reached 46.41% in 2018 based on the build area rate. River channel characteristics also changed significantly, from natural river to concrete channel. Some flood resilience measures for coastal cities experiencing urbanization are also proposed for development and flood mitigation. Moreover, a flood forecasting model of the Sungai Pinang watershed is established herein. The simulation results of the Liuxihe model constructed in this study conforms to hydrological regularities and can provide a technical reference for flood control and disaster reduction. However, it is necessary to pay attention to the uncertainty of the forecast results.
期刊介绍:
Tropical Cyclone Research and Review is an international journal focusing on tropical cyclone monitoring, forecasting, and research as well as associated hydrological effects and disaster risk reduction. This journal is edited and published by the ESCAP/WMO Typhoon Committee (TC) and the Shanghai Typhoon Institute of the China Meteorology Administration (STI/CMA). Contributions from all tropical cyclone basins are welcome.
Scope of the journal includes:
• Reviews of tropical cyclones exhibiting unusual characteristics or behavior or resulting in disastrous impacts on Typhoon Committee Members and other regional WMO bodies
• Advances in applied and basic tropical cyclone research or technology to improve tropical cyclone forecasts and warnings
• Basic theoretical studies of tropical cyclones
• Event reports, compelling images, and topic review reports of tropical cyclones
• Impacts, risk assessments, and risk management techniques related to tropical cyclones