Coupling and Comparison of Physical Mechanism and Machine Learning Models for Water Level Simulation in Plain River Network Area DOI Creative Commons
Xiaoqing Gao, Yunzhu Liu, Cheng Gao

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(24), P. 12008 - 12008

Published: Dec. 22, 2024

In this study, the JiaoGang Basin in Yangtze River Delta plains of river network area was research object. A basin water level simulation model constructed based on physical mechanism and Mike software, parameters were calibrated validated. Based dataset produced by model, three types ML models, Support Vector Machine (SVM), random forest (RF), gradient boosting decision tree (GBDT), constructed, trained, validated, compared with model. The results showed that met accuracy requirements at most stations. training validation periods, RF GBDT models had root mean square errors (RMSEs) all stations less than 0.25 Nash–Sutcliffe coefficient (NSE) greater 0.7. can simulate better. considerably outperform terms peak present time errors, fluctuations (RMSE NSE) are minor to those

Language: Английский

Climate change and urban sprawl: Unveiling the escalating flood risks in river deltas with a deep dive into the GBM river delta DOI

Shupu Wu,

Xudong Zhou, Johan Reyns

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 947, P. 174703 - 174703

Published: Oct. 1, 2024

Language: Английский

Citations

8
A Structural Optimization of Urban Drainage Systems: An Optimization Approach for Mitigating Urban Floods DOI Open Access
Yukun Zhang, Ersong Wang, Yongwei Gong

et al.

Water, Journal Year: 2024, Volume and Issue: 16(12), P. 1696 - 1696

Published: June 14, 2024

Urbanization and climate change increasingly challenge urban water management. In this context, the design of stormwater drainage systems, which traditionally relies on historical rainfall records, is being questioned. Although significant efforts have been dedicated to optimizing networks, upgrading existing systems remains understudied. This research devised a set viable referencing road network Sino-Singapore Tianjin Eco-City (data from Google Maps). On basis, utilizing data (sourced local meteorological center), an extensive array scenario analyses was conducted. The investigation assessed performance implementing two redundancy-based interventions—introducing loops enlarging pipe diameters—as well as patterns flood risk response, by integrating multi-objective optimization algorithm, study proposes framework for grey infrastructure upgrades based component replacement. findings suggest that precise deployment strategy essential. former improves effective flow distribution system, while latter enhances its capacity, making each intervention suitable with different degree centralization. Further shows integrated hybrid scheme brings improvement strong applicability most systems. upgrade model proposed in could be valuable initiative, offering theoretical insights construction development resilient cities.

Language: Английский

Citations

3
A conceptual framework for implementing green-grey infrastructures to mitigate urban flood through source-to-hazard intervention pattern DOI
Yang Liu,

Wenchao Qi,

Muyun Li

et al.

International Journal of Disaster Risk Reduction, Journal Year: 2025, Volume and Issue: unknown, P. 105432 - 105432

Published: March 1, 2025

Language: Английский

Citations

0
Comparative analysis of hydraulic and GIS-based Height Above the Nearest Drainage model for fluvial flood hazard mapping: a case of the Gidra River, Slovakia DOI Creative Commons
Matej Vojtek, Soheyl Moradi, Andrea Petroselli‬

et al.

Stochastic Environmental Research and Risk Assessment, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Language: Английский

Citations

0
Exploring how economic level drives urban flood risk DOI Creative Commons
Jie Fan, Baoyin Liu,

Tianjie Lei

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: May 25, 2025

In recent years, measures proposed to address urban flooding caused by extreme rainfall often demand substantial investment, restricting their broad implementation. This study quantitatively assessed the inundation situations of 138 capital cities under both normal and conditions. Using machine learning techniques, we found that grey infrastructure-closely commensurate with a city's economic development-dominates flood reduction during events. However, precipitation, as intensity rises, marginal effectiveness infrastructure declines markedly. contrast, green topography-less development-play increasingly critical roles in mitigating flooding. These findings suggest development has limited impact on Rationally utilizing topography enhancing spaces provides cost-effective nature-based solution, which is particularly important for planning low- middle-income countries undergoing rapid urbanization.

Language: Английский

Citations

0
Numerical modelling of the impact of drainage system clogging on urban flood processes DOI

Xiaojie Wang,

Junqiang Xia, Jian Feng

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 388, P. 125969 - 125969

Published: May 27, 2025

Language: Английский

Citations

0
Impact of Urbanization-Driven Land Use Changes on Runoff in the Upstream Mountainous Basin of Baiyangdian, China: A Multi-Scenario Simulation Study DOI Creative Commons
Yuan Gong, Xin Geng,

Ping Wang

et al.

Land, Journal Year: 2024, Volume and Issue: 13(9), P. 1374 - 1374

Published: Aug. 28, 2024

Urbanization in the Haihe River Basin northern China, particularly upstream mountainous basin of Baiyangdian, has significantly altered land use and runoff processes. The is a key water source for downstream areas like Baiyangdian Xiong’an New Area, making it essential to understand these changes’ implications security. However, exact processes remain unclear. To address this gap, simulation framework combining SWAT+ CLUE-S was used analyze responses under different scenarios: natural development (ND), farmland protection (FP), ecological (EP). model results were good, with NSE above 0.7 SWAT+. Kappa coefficient validation 0.83. further study found that from 2005 2015, urban construction increased by 11.50 km2 per year, leading 0.5–1.3 mm rise annual runoff. Although expansion continued, other scenarios, which emphasized forest preservation, slowed growth. Monthly changes most significant during rainy season, ND, FP, EP varying 8.9%, 10.9%, 7.7%, respectively. While differences between scenarios not dramatic, findings provide theoretical foundation future resource planning management area offer valuable insights sustainable Area. Additionally, contribute broader field hydrology highlighting importance considering multiple change analysis.

Language: Английский

Citations

1
Spatiotemporal variation of flood disaster losses and future assessment in the middle and lower region of the Yangtze River DOI
Xiaojie Wang, Junqiang Xia, Boliang Dong

et al.

International Journal of Disaster Risk Reduction, Journal Year: 2024, Volume and Issue: unknown, P. 105122 - 105122

Published: Dec. 1, 2024

Language: Английский

Citations

1
HYDRAULIC MODELING FOR FLOOD CONTROL SCENARIOS IN AKELAKA WATERSHED, NORTH MALUKU, INDONESIA DOI Open Access

Idhar Sahdar

International Journal of Geomate, Journal Year: 2024, Volume and Issue: 27(120)

Published: Aug. 30, 2024

The Akelaka River experiences annual flooding, which inundates agricultural lands and settlements.The riverbanks of the are relatively natural, covered with bushes marsh grass.Given site conditions, there opportunities to combine ecohydraulics structural flood control measures.Ecohydraulics methods include reforestation upstream planting vegetation along riverbanks.Structural encompass dredging, widening, diking, creating retention ponds.The effectiveness these treatments was evaluated using hydraulic modeling in HEC-RAS.The required data for this research included rainfall, terrain, land cover, technical plans proposed measures.Results show that can reduce inundation by up 32% a 5-year return period 39% 25-year period.Retention ponds 47% 50% periods, respectively.Dredging, diking nearly eliminate both periods.While approach (dredging, diking) significantly reduces inundation, it may cause sedimentation decrease function structures over time.Therefore, combining is optimal strategy.Structural measures provide immediate relief from while offer long-term sustainability.This recommended strategy has proven effective reducing offering reliable solution recurring flooding problem on River.

Language: Английский

Citations

0
Infiltration Wells Effectiveness Analysis: Study in Purwantoro Village, Malang City DOI Open Access

Oxike Morillyn,

Moh. Khusaini,

Vietha Devia

et al.

Jurnal Penelitian Pendidikan IPA, Journal Year: 2024, Volume and Issue: 10(12), P. 10029 - 10036

Published: Dec. 18, 2024

Infiltration wells are one of the effective infrastructure in draining rainwater so that they can reduce waterlogging, but existing infiltration need to be reviewed for their effectiveness as water shortages still occurring especially Purwantoro Village.The study aims determine and calculate appropriate number Village. The method used this research is a hydrological analysis, planned flood discharge analysis dan well analysis. results showed Village varies greatly, with highest at 82.8% lowest 11.3%. To increase wells, many 109 needed waterlogging. conclusion lack because limited, it necessary add maintenance deposits contained wells.

Language: Английский

Citations

0