Assessing Future Flooding Risk in a Coastal Lagoon Using Hydrogeological Approaches and Analysis of the 2021 Flood Event: A Case Study of Tasi-Tolu Lagoon, Dili, Timor-Leste  

作　　者：Mafaldo José Faria Marçal Ximenes Oktoviano Viegas Tilman de Jesus Mafaldo José Faria;Marçal Ximenes;Oktoviano Viegas Tilman de Jesus(Instituto do Petróleo e Geologia—Instituto Publico (IPG-IP), Division of Hydrogeology & Mineral Resources, Hydrogeology Team, Dili, Timor-Leste)

机构地区：[1]Instituto do Petróleo e Geologia—Instituto Publico (IPG-IP), Division of Hydrogeology & Mineral Resources, Hydrogeology Team, Dili, Timor-Leste

出　　处：《Journal of Water Resource and Protection》2023年第6期276-298,共23页水资源与保护（英文）

摘　　要：This study aims to apply a hydrogeological approaches and analysis of the 2021 flood event of Tasi-Tolu Lagoon to achieve four specific goals. Firstly, the study seeks to determine the natural characteristics of the lagoon, which include factors such as size, depth, water quality, and ecosystem composition. Secondly, the influence of precipitation on the water volume in the lagoon will be examined. This analysis involves assessing historical rainfall patterns in the region, as well as the amount and frequency of precipitation during the 2021 flood event. Thirdly, the hydrogeologic and geologic conditions of the lagoon will be evaluated. This involves examining factors such as the type and structure of the soil and bedrock, the presence of aquifers or other underground water sources, and the movement of water through the surrounding landscape. Finally, the study seeks to assess the risk of future flooding in Tasi-Tolu Lagoon, based on the insights gained from the previous analyses. Overall, this study’s goal is to provide a comprehensive understanding of the hydrogeological factors that contribute to flooding in Tasi-Tolu Lagoon. This knowledge could be used to inform flood mitigation strategies or to improve our ability to predict and respond to future flooding events in the region.This study aims to apply a hydrogeological approaches and analysis of the 2021 flood event of Tasi-Tolu Lagoon to achieve four specific goals. Firstly, the study seeks to determine the natural characteristics of the lagoon, which include factors such as size, depth, water quality, and ecosystem composition. Secondly, the influence of precipitation on the water volume in the lagoon will be examined. This analysis involves assessing historical rainfall patterns in the region, as well as the amount and frequency of precipitation during the 2021 flood event. Thirdly, the hydrogeologic and geologic conditions of the lagoon will be evaluated. This involves examining factors such as the type and structure of the soil and bedrock, the presence of aquifers or other underground water sources, and the movement of water through the surrounding landscape. Finally, the study seeks to assess the risk of future flooding in Tasi-Tolu Lagoon, based on the insights gained from the previous analyses. Overall, this study’s goal is to provide a comprehensive understanding of the hydrogeological factors that contribute to flooding in Tasi-Tolu Lagoon. This knowledge could be used to inform flood mitigation strategies or to improve our ability to predict and respond to future flooding events in the region.

关 键 词：Lagoon Characteristics Flooding Event Precipitation Shoreline Flooding Volume Hydrogeologic and Geologic Condition Assessing Future Flooding Risk of Tasi-Tolu Lagoon DILI TIMOR-LESTE 

分 类 号：R57[医药卫生—消化系统]