Water, Journal Year: 2023, Volume and Issue: 15(4), P. 828 - 828
Published: Feb. 20, 2023
Surface water quality modelling has become an important means of better understanding aquatic and riparian ecosystem processes at all scales, from the micro-scale (e [...]
Language: Английский
Citations
177Characteristics of turbulent flow around bridge abutments in the presence of vegetation in channel bed under ice-covered flow conditions
Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: 221, P. 104172 - 104172
Published: March 11, 2024
During winter, ice cover frequently forms on the water surface of rivers with vegetated channel beds in cold regions. The investigation impacts both and bed vegetation flow structures around bridge abutments is essential for engineers to gain a comprehensive understanding complex interactions occurring such situation. In present study, structure rectangular abutment presence under ice-covered conditions has been studied. Considering different densities by arranging elements square staggered configurations, this study incorporates influence covers roughness, namely smooth rough cover. Key turbulence parameters, including intensity, Reynolds shear stress (RSS), turbulent kinetic energy (TKE), are also examined based laboratory experiments. Results show that shape velocity profiles over changes from an S-shaped curve open condition convex conditions. effects create unpredictable intensity patterns. Under rough-covered condition, there appears larger area negative (RSS) downstream abutment. Turbulent (TKE) substantially lower magnitudes than
Language: Английский
Citations
7Navigational Risks in Ice-Prone Areas: A Case Study of the Arctic Northwest Passage
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems Part A Civil Engineering, Journal Year: 2025, Volume and Issue: 11(2)
Published: Jan. 20, 2025
Language: Английский
Citations
0Changing Water Cycle under a Warming Climate: Tendencies in the Carpathian Basin
Climate, Journal Year: 2023, Volume and Issue: 11(6), P. 118 - 118
Published: May 26, 2023
In this mini-review, we present evidence from the vast literature that one essential part of coupled atmosphere–ocean system makes life on Earth possible, water cycle, is exhibiting changes along with many attributes global climate. Our starting point 6th Assessment Report IPCC, which appeared in 2021, where almost monograph-size Chapter 8, over 1800 references, devoted entirely to cycle. addition listing main observations globally, focus Europe, particularly Carpathian (Pannonian) Basin. We collect plausible explanations possible causes behind an observably accelerating and intensifying Some authors still suggest natural boundary conditions, such as solar irradiance or Earth’s orbital parameters, explain observations. contrast, most attribute increasing greenhouse gas concentrations since industrial revolution. The hypothesis being tested, has already yielded convincing affirmative answers, hydrological cycle intensifies due anthropogenic impacts. Basin, a Danube watershed, including sub-basin Tisza River, no exception these changes. region experiencing multiple drivers contributing alterations temperatures, shifting precipitation regimes, various human
Language: Английский
Citations
10Ice-Jam Investigations along the Oder River Based on Satellite and UAV Data
Water, Journal Year: 2024, Volume and Issue: 16(10), P. 1323 - 1323
Published: May 7, 2024
The Oder River, situated along the border between Poland and Germany, is regularly affected by ice-jam events their associated hazards, such as a sudden rise in water level endangerment to flood-protection infrastructure. existing databases on past lack substantial information considering ice formation, blockage origins or spatiotemporal evolution of cover needed for comprehensive understanding relevant processes. Within this study, evaluation satellite Uncrewed Aerial Vehicle (UAV) data was carried out order analyze capabilities enhancing river study area. Satellite imagery proven be valuable source investigating phenomena all scales, leading identification initial locations, surveying monitoring maximum ice-cover extent. A simplified approach classification radar using K-Means Cluster Analysis introduced, enabling differentiation formations. Based UAV taken workflows were presented, allowing measurements floe velocities localization flooded ice-covered flow control structures.
Language: Английский
Citations
3Review of River Ice Observation and Data Analysis Technologies
Hydrology, Journal Year: 2024, Volume and Issue: 11(8), P. 126 - 126
Published: Aug. 20, 2024
This paper provides a comprehensive review of the available literature on observation and characterization river ice using remote sensing technologies. Through an analysis 200 publications spanning from 1919 to June 2024, we reviewed different technologies deployed in situ, aerial satellite platforms for their utility monitoring characterizing covers. River information, captured by 51 terms extracted literature, holds significant value enhancing infrastructure resilience face climate change. Satellite technologies, particular multispectral optical multi-polarimetric synthetic aperture radar (SAR), provide number advantages, such as features discrimination, better characterization, reliable delineation open water ice, with both current upcoming sensors. The includes data methods employed including information retrieval corresponding accuracies. need further research artificial intelligence and, particular, deep learning (DL) techniques has been recognized valuable accuracy automated systems. growing availability freely commercial satellites, UAVs, situ improved characteristics suggests operational potential near future. Our study also identifies gaps capabilities suggestions interpretation.
Language: Английский
Citations
3Challenges for Flood Risk Reduction in Poland’s Changing Climate
Water, Journal Year: 2023, Volume and Issue: 15(16), P. 2912 - 2912
Published: Aug. 12, 2023
Floods are the main natural disaster in Poland, and risk of both fluvial pluvial floods is serious country. Pluvial on rise changing climate, particularly increasingly sealed urbanized areas. In this paper, we examine changes flood discussing mechanisms, observations, projections variability. Next, discuss management country, including specific issues related to urban rural areas synergies between drought reduction measures. We identify assess weaknesses existing plans Poland for first planning period 2016–2021 second 2022–2027. find level implementation former be very low. Many planned measures do not have much with but often linked other objectives, such as inland navigation. The contain numerous small measures, which come across inapt economically ineffective solutions. specify policy-relevant recommendations necessary urgent actions, which, if undertaken, could considerably reduce risk. also sketch way ahead within timeframe 2022–2027 next regular update 2028–2033.
Language: Английский
Citations
8Frazil ice events: Assessing what to expect in the future
Hydrology Research, Journal Year: 2023, Volume and Issue: 54(6), P. 770 - 781
Published: June 1, 2023
Abstract This article addresses the question: What is expected from frazil ice activity in rivers, taking into account changing climate? It begins with an overview of what and required for occurrence events, namely a supercooled water column. Methodologies to anticipate events short term are based on air temperature discharge, underlining significance these two parameters any predictive methods. Longer-term approaches, calibrated against past (hindcasting), used future, indicators such as risk, volume. Any approaches could conceivably be applied frazil-prone river stretches. To assess climate impact, each location should treated separately. River dynamics can lead formation hanging dam, frequent outcome generation early winter, causing flow restriction. Flood modeling forecasting capabilities have been developed implemented operational use. More mid-winter breakups extend winter months – prediction will require model output adequately capture month-to-month variability.
Language: Английский
Citations
7Ice regimes, ice jams, and a changing hydroclimate, Saint John (Wolastoq) River, New Brunswick, Canada
Natural Hazards, Journal Year: 2024, Volume and Issue: unknown
Published: June 15, 2024
Abstract Ice formation, growth, and breakup along the Saint John River (SJR) affects its hydraulic ecological regimes leads to potential for ice jamming that has caused severe flooding runs resulting in loss of life, property damage, of, or damage to, infrastructure. A synopsis SJR from Dickey, Maine, USA Woodstock, New Brunswick, Canada is summarized this paper. Trends relevant hydroclimatic variables such as monthly mean air temperature (December April), total winter snow March), length season, rainfall, peak spring flows are discussed. Projections future under a changing climate provided, with anticipated changes regime explained wider context cryosphere.
Language: Английский
Citations
2Risk Evaluation of Ice Flood Disaster in the Upper Heilongjiang River Based on Catastrophe Theory
Water, Journal Year: 2023, Volume and Issue: 15(15), P. 2724 - 2724
Published: July 28, 2023
The ice flood phenomenon frequently occurs in frigid locations of high latitude and altitude, which triggers dam or jam flooding thus endangering personal property safety. Hence, a scientific risk evaluation with enough consideration each factor is basic necessary requirement for preventing disaster risks. This study establishes system disasters based on the catastrophe theory utilizes Pearson correlation coefficient to screen underlying indicators evaluate upper Heilongjiang River region. Considering between different indicators, hierarchical cluster analysis invoked simplify indicator set select typical years. results indicate that membership values Mohe, Tahe, Huma regions from 2000 2020 ranged 0.86 0.93. Based actual situations, four-level classification ratings conducted. comparison obtained method fuzzy comprehensive reveals similar levels, verifies effectiveness practicality applied presents novel floods.
Language: Английский
Citations
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