Are Pluvial and Fluvial Floods on the Rise?

Water, Journal Year: 2022, Volume and Issue: 14(17), P. 2612 - 2612

Published: Aug. 25, 2022

The aim of this paper is accurately framed in its title: Are pluvial and fluvial (river) floods on the rise? First, physical mechanisms that drive changes hazard were examined. Then, a review literature was undertaken detection an attribution observation records for past to present, as well model-based projections future. Various aspects, factors, processes mechanisms, various indices interest considered. There quite common, even if not scientifically justified, belief that, generally, are rise. However, paper, balanced, knowledge-based assessment undertaken, with discussion interpretation, including caveats indicating considerable departures from such flat-rate statement. Observation show precipitation extremes have been intensifying global scale many regions. A formal analysis shows intensification rainfall events may influenced by greenhouse gas forcing anthropogenic origin. Frequency magnitude rise increasing intense precipitation, while river more complex. High discharges found increase some regions, but decrease other so no general corollaries can be drawn at scale. Heavy projected become, almost ubiquitously, frequent progressing climate change, frequency likely all

Language: Английский

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Investigating Flood Impact on Crop Production under a Comprehensive and Spatially Explicit Risk Evaluation Framework

Agriculture, Journal Year: 2022, Volume and Issue: 12(4), P. 484 - 484

Published: March 30, 2022

Due to the projected increased frequency of occurrence extreme flood events, it is becoming increasingly important pay attention agricultural management. The middle and lower reaches Yangtze River Basin (MLYRB), as one most areas in world, frequently suffer from ravages long-duration events. Comprehensive risk evaluation can provide support for effective management strategies by focusing on combination hazard consequences flooding exposed inundation. Previous satellite-based disturbance detection methods intended use single-cropping systems cannot be applied MLYRB with multi-cropping practices Additionally, comprehensive evaluations traditionally neglect characteristics impact strong spatial temporal variability. Thus, this research, an integrated index (IDI) was developed detect crop growth, aiming acquire a map damage condition system events that spatially explicit has sufficiently high resolution. A coupled hydrological 2D hydraulic model parallelized using GPU approach employed simulate flows, at deriving sufficient meaningful detail local scale terms inundation patterns processes over whole natural watershed. combined effects used investigate relationship between associated loss extent random forest model. framework 2010 event MLYRB. results indicate based IDI are consistent governmental statistics, hard-hit related reports, river floods. hydrological–hydraulic offers clear picture basin, while simultaneously ensuring Our findings show duration predictor predicting extent.

Language: Английский

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A distributed hydrological model for semi-humid watersheds with a thick unsaturated zone under strong anthropogenic impacts: A case study in Haihe River Basin

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 623, P. 129765 - 129765

Published: June 3, 2023

Language: Английский

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More extreme precipitation over the Yangtze River Basin, China: Insights from historical and projected perspectives

Atmospheric Research, Journal Year: 2023, Volume and Issue: 292, P. 106883 - 106883

Published: June 17, 2023

Language: Английский

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Asymmetry of blue and green water changes in the Yangtze river basin, China, examined by multi-water-variable calibrated SWAT model

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 625, P. 130099 - 130099

Published: Aug. 26, 2023

Language: Английский

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