Urban waterlogging risk assessment and drainage parameters design of Xicen Science and Technology Innovation Center based on satellite remote sensing data DOI
Tian Liang,

Hanwei Yang,

Qiang Meng

et al.

Published: June 21, 2024

Under global warming, the increase in extreme rainfall events has led to a significant rise frequency of urban waterlogging disasters, and major cities are facing severe risks waterlogging. In this paper, revised "annual maximum method" was utilized develop intensity formula suitable for Xicen Science Technology Innovation Center (XICEN). Based on satellite remote sensing data SCS-CN model, we evaluated under five scenarios with return periods 5a, 10a, 20a, 50a, 100a through inversion method critical rainfall. The results indicate that when hourly exceeds 50mm, may affect entire study area. Furthermore, as period extends, risk also increases. scenario 5a period, is mainly categorized mid-low or low risk; however, XICEN mid-high levels. These findings can serve references disaster response future construction planning.

Language: Английский

Projected urban flood risk assessment under climate change and urbanization based on an optimized multi-scale geographically weighted regression DOI
Feifei Han,

Jingshan Yu,

Guihuan Zhou

et al.

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 112, P. 105642 - 105642

Published: July 4, 2024

Language: Английский

Citations

17
A novel integrated Urban flood risk assessment approach coupling GeoDetector-Dematel and clustering method DOI

Chuanxing Zheng,

Weichao Yang, Xuelian Jiang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 354, P. 120308 - 120308

Published: Feb. 19, 2024

Language: Английский

Citations

14
Threshold and real-time initiation mechanism of urban flood emergency response under combined disaster scenarios DOI
Yihong Zhou, Zening Wu, Qiuhua Liang

et al.

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 108, P. 105512 - 105512

Published: May 8, 2024

Language: Английский

Citations

9
Flood-Resilient Smart Cities: A Data-Driven Risk Assessment Approach Based on Geographical Risks and Emergency Response Infrastructure DOI Creative Commons
João Paulo Just Peixoto, Daniel G. Costa, Paulo Portugal

et al.

Smart Cities, Journal Year: 2024, Volume and Issue: 7(1), P. 662 - 679

Published: Feb. 16, 2024

Flooding in urban areas is expected to become even more common due climatic changes, putting pressure on cities implement effective response measures. Practical mechanisms for assessing flood risk have highly desired, but existing solutions been devoted evaluating only specific and consider limited perspectives, constraining their general applicability. This article presents an innovative approach the of delimited by exploiting geospatial information from publicly available databases, providing a method that applicable any city world requiring minimum configurations. A set mathematical equations defined numerically levels based elevation, slope, proximity rivers, while existence emergency-related infrastructure considered as reduction factor. Then, computed are used classify areas, allowing easy visualisation city. smart not serves valuable tool different parameters also facilitates implementation cutting-edge strategies effectively mitigate critical situations, ultimately enhancing resilience flood-related disaster.

Language: Английский

Citations

6
Flood Risk Assessment of Areas under Urbanization in Chongqing, China, by Integrating Multi-Models DOI Creative Commons
Yuqing Li, Jiangbo Gao, Jie Yin

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(2), P. 219 - 219

Published: Jan. 5, 2024

In the context of urbanization, frequent flood event have become most common natural disasters, posing a significant challenge to human society. Considering effects urbanization on risk is critical for reduction and reasonable land planning strategies at city scale. This study proposes an integrated approach based remote sensing data using CA, Markov, simplified hydrodynamic (FloodMap) models accurately effectively assess under urbanization. Taking Chongqing City as case study, this paper analyzes temporal spatial variations in use/land cover (LULC) 2010, 2015, 2018 predicts LULC 2030, historic trends. Flood assessed by combining hazard, exposure, modified vulnerability. The results suggest that area built-up will increase significantly from 19.56% 25.21% 2030. From 2010 medium high inundation depths 10 16 times, respectively. damage varies remarkably according return period. expected annual (EAD) has been estimated USD 68 million 200 proportional population inversely socioeconomic level. used here can provide comprehensive understanding land-use policymaking management control facilities.

Language: Английский

Citations

5
Enhancing Cycling Safety in Smart Cities: A Data-Driven Embedded Risk Alert System DOI Creative Commons

José Ferreira,

Daniel G. Costa

Smart Cities, Journal Year: 2024, Volume and Issue: 7(4), P. 1992 - 2014

Published: July 26, 2024

The safety of cyclists on city streets is a significant concern, particularly with the rising number accidents in densely populated areas. Urban environments present numerous challenges, such as complex road networks and heavy traffic, which increase risk cycling-related incidents. Such concern has been recurrent, even within smart scenarios that have focused only expanding cycling infrastructure. This article introduces an innovative low-cost embedded system designed to improve urban areas, taking geospatial data input. By assessing proximity emergency services utilizing GPS coordinates, can determine indirect current level for cyclists, providing real-time alerts when crossing high-risk zones. Built Raspberry Pi Zero board, this solution both cost-effective efficient, making it easily reproducible various settings. Preliminary results Porto, Portugal, showcase system’s practical application effectiveness enhancing supporting sustainable mobility.

Language: Английский

Citations

5
Urban flooding simulation and flood risk assessment based on the InfoWorks ICM model: a case study of the urban inland rivers in Zhengzhou, China DOI Creative Commons

Huaibin Wei,

HengAn Wu, Liyuan Zhang

et al.

Water Science & Technology, Journal Year: 2024, Volume and Issue: 90(4), P. 1338 - 1358

Published: Aug. 14, 2024

ABSTRACT Urban flooding intensifies with escalating urbanization. This study focuses on Xiong'er river as the area and couples a 1D/2D urban model using InfoWorks ICM (Integrated Catchment Modeling). Ten scenarios are set respectively rainfall return period of 5a 10a, 20a, 50a, 100a, alongside durations 1 24 h. Subsequently, H-V (hazard–vulnerability) method was applied to evaluate risk. Three indicators were selected for each hazard factors vulnerability factors. The relative weight values indicator factor calculated AHP method. result shows that (1) flood depth, rate, duration escalate longer periods, yet decrease increases; (2) lengthens, proportion node overflow rises, whereas it diminishes durations, leading an overall overloaded state in pipeline network; (3) distribution research is mainly low-risk areas, very few extremely high-risk. Medium high-risk areas distributed both sides river, densely built low-lying areas. demonstrates can accurately simulate provide insights analyses comparable regions.

Language: Английский

Citations

5
Estimating storm runoff extreme in small ungauged catchments using an integrated modeling approach DOI Creative Commons

Ziyong Zhao,

Mohamad Reza Salehi Sadaghiani,

Wenyu Yang

et al.

Sustainable Horizons, Journal Year: 2024, Volume and Issue: 9, P. 100092 - 100092

Published: Feb. 1, 2024

Hydrological modeling often requires long-term and stable runoff data. Due to limitations in hydrological stations, small-scale catchments faces the challenge of data scarcity. To overcome incomplete data, an integrated approach that includes a semi-distributed hydrodynamic numerical model was employed catchment located Isserstedt, upstream Leutra River, Germany. The results indicated this effectively leverages strengths each reasonably predicted peak flows. As measure for regional management, keyline method contributed more hydrographs lower flows, played role water storage local climate regulation. framework proposed study provided valuable insights into critical storms, hydrographs, flood extent storm extremes.

Language: Английский

Citations

4
Effectiveness Trade-Off Between Green Spaces and Built-Up Land: Evaluating Trade-Off Efficiency and Its Drivers in an Expanding City DOI Creative Commons

Xinyu Dong,

Yanmei Ye, Tao Zhou

et al.

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(2), P. 212 - 212

Published: Jan. 9, 2025

Urban expansion encroaches on green spaces and weakens ecosystem services, potentially leading to a trade-off between ecological conditions socio-economic growth. Effectively coordinating the two elements is essential for achieving sustainable development goals at urban scale. However, few studies have measured urban–ecological linkage in terms of trade-off. In this study, we propose framework by linking degraded land use efficiency from return investment perspective. Taking rapidly expanding city as case comprehensively quantified four aspects: heat island, flood regulating service, habitat quality, carbon sequestration. These were assessed 1 km2 grids, along with same spatial We employed slack-based measure model evaluate applied geo-detector method identify its driving factors. Our findings reveal that while Zhengzhou’s periphery over past decades, inner showed improvement island Trade-off exhibited an overall upward trend during 2000–2020, despite initial declines some areas. Interaction detection demonstrates significant synergistic effects pairs drivers, such Normalized Difference Vegetation Index building height, number patches patch cohesion index built-up land, q-values 0.298 0.137, respectively. light spatiotemporal adaptive management strategies. The could serve guidance assist decision-makers planners monitoring context expansion.

Language: Английский

Citations

0
Regional joint regulation mode for flood control in plain cities: addressing extensive heavy rainfall DOI Creative Commons
Qianting Liu, Zhiming Zhang,

Yang Liangrui

et al.

Water Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Establishing a coordinated flood storage and drainage joint regulation mode for various cities can effectively mitigate the disaster risk associated with extensive heavy rainfall. This study introduces novel concept of urban agglomeration based on watershed features spatial topological norms. From perspective agglomeration, three new modes are proposed to guide in plain cities: (1) storing before discharging, (2) discharging storing, (3) while storing. The aim facilitate coordination among neighboring an enhance temporal drainage. Multi-layer tree rules established allocate characteristics risk, storage, performance. fact case proves that has certain practical applicability. There 35, 151, 30 use DS, DWS, SD modes, respectively, out 221 total. Most agglomerations employ at least two different modes. multi-layer allocation presented this provide theoretical guidelines management across regions.

Language: Английский

Citations

0