Integration of RS and GIS in assessing flood risk: A Case Study on Istanbul - Esenyurt

Journal of Contemporary Urban Affairs, Journal Year: 2024, Volume and Issue: 8(1), P. 57 - 78

Published: March 10, 2024

Floods, exacerbated by escalating urbanization, pose significant threats to life and property globally. Over the past decade, Esenyurt district in Istanbul has witnessed a series of floods, highlighting existing flood risks. Rapid population growth this area dense urbanization caused intensive construction increase Given these factors, study focuses on examining historical impact risks, considering spatial temporal changes. Landsat-8 satellite data, specifically NDVI, NDBI, BU, was employed detect building imprints reveal their backgrounds for risk calculations. The analysis showed sudden rates 2016, 2017, 2021. In calculations, 2014 data return period 100 years were used inundation depth, economic damages, affected depth-damage function taken into consideration. results indicate that from 2022, increasing led 32.9% 22.3% rise potential damage, 13.6% total risk. relationship between contemporary its dimensions been evaluated reduce risks achieve sustainable cities.

Language: Английский

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Utilizing 3D GIS for the sustainable management of UNESCO World Heritage Sites in Saudi Arabia

Frontiers in Built Environment, Journal Year: 2025, Volume and Issue: 11

Published: March 18, 2025

Introduction Spatial analysis documentation and visualization achieve through Geographic Information Systems (GIS) handles essential functions for heritage asset management. The research develops a 3D GIS platform that supports Al-Ahsa building conservation as UNESCO World Heritage Site advanced spatial technology. Methods collection of data occurred via historical record indexing together with stakeholder dialogue methods. developed system merges multiple categories including general urban elements along architectural aspects structural construction records structured relational database. Into this researchers combined analytics web-mapping three-dimensional modeling telecommuting purposes group decision-making features. Results generated high-quality models crucial information preservation needs. enabled better understanding cultural components during planning tasks reviews. Through building-structural could be accessed precisely to conduct risk assessments supported resource management decisions. Discussion site receives improved benefits because platforms which unite various types into unified framework. This approach demonstrates scalability makes it suitable expanded use in projects. Conclusion application technology represents beneficial element enabling systematic record-keeping while offering visual representations monitoring potential basis future protection strategies preservation.

Language: Английский

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Development of methodology for calculating flooded area and flood volume in small urban areas based on unmanned aerial vehicle images

Frontiers in Built Environment, Journal Year: 2024, Volume and Issue: 10

Published: Nov. 6, 2024

Climate change has intensified flooding and increased localized torrential rainfalls, leading to disasters such as landslides, infrastructure collapse, urban floods. The extent accuracy of flood damage information significantly impact recovery processes. While previous studies primarily utilized satellite aerial imagery for broad assessments, they often lacked the precision needed accurate analysis. This study addresses gap between rapid assessment needs precise quantification in inundation research introduces a novel image-based investigation approach enhance speed assessment. By leveraging unmanned vehicles (UAVs) spatial data technology, images flooded areas are rapidly captured construct three-dimensional disaster site terrain information. proposed methodology employs advanced techniques photography, image processing, geographic analysis quantitatively analyze scale using only systems (GIS). yielded calculated area 3,847.36 m 2 volume 13,895.13 3 . complements existing potential improve management efforts by providing rapid, accurate, actionable decision-makers.

Language: Английский

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Impact of rapid anthropogenic land use and land cover change on basin hydrology and sediment loads

Landscape and Ecological Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Language: Английский

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