Huayang Cai

ORCID: 0000-0001-7327-4879
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About
Contact & Profiles
Research Areas
  • Oceanographic and Atmospheric Processes
  • Coastal and Marine Dynamics
  • Coastal wetland ecosystem dynamics
  • Tropical and Extratropical Cyclones Research
  • Geological formations and processes
  • Ocean Waves and Remote Sensing
  • Hydrology and Watershed Management Studies
  • Flood Risk Assessment and Management
  • Climate variability and models
  • Hydrological Forecasting Using AI
  • Hydrology and Drought Analysis
  • Hydrology and Sediment Transport Processes
  • Geophysics and Gravity Measurements
  • Meteorological Phenomena and Simulations
  • Underwater Acoustics Research
  • Geology and Paleoclimatology Research
  • Toxic Organic Pollutants Impact
  • Marine and coastal ecosystems
  • Environmental Changes in China
  • Arctic and Antarctic ice dynamics
  • Geological and Geophysical Studies
  • Per- and polyfluoroalkyl substances research
  • Plant Water Relations and Carbon Dynamics
  • Microplastics and Plastic Pollution
  • Hydraulic flow and structures

Sun Yat-sen University
2015-2024

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2019-2024

Shanghai Estuarine & Coastal Science Research Center
2019-2024

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
2019-2024

Harbin Engineering University
2023-2024

Fuzhou University
2023-2024

China University of Geosciences
2023

East China Normal University
2018-2019

State Key Laboratory of Estuarine and Coastal Research
2019

Key Laboratory of Guangdong Province
2016-2018

Urban pluvial flooding is a threatening natural hazard in urban areas all over the world, especially recent years given its increasing frequency of occurrence. In order to prevent flood occurrence and mitigate subsequent aftermath, water managers aim predict precipitation characteristics, including peak intensity, arrival time duration, so that they can further warn inhabitants risky take emergency actions when forecasting flood. Previous studies dealt with prediction are mainly based on...

10.1016/j.advwatres.2020.103719 article EN cc-by Advances in Water Resources 2020-08-07

Abstract. The effect of river discharge on tidal damping in estuaries is explored within one consistent theoretical framework where analytical solutions are obtained by solving four implicit equations, i.e. the phase lag, scaling, and celerity equation. In this approach equation subtracting envelope curves high water low occurrence, taking into account that flow velocity consists a component. Different approximations friction term considered deriving equation, resulting as many solutions. it...

10.5194/hess-18-287-2014 article EN cc-by Hydrology and earth system sciences 2014-01-22

Dredging and flow reduction in the Modaomen Estuary China have had a measurable impact on tidal propagation damping. This paper includes an assessment of impacts these human interventions through use new analytical hydraulic model procedure. The calculates damping as function bathymetry river discharge simple iterative procedure with explicit equations. results obtained are accurate allow both analysis historic development sensitivity to assess effect possible further dredging reduction....

10.1061/(asce)hy.1943-7900.0000594 article EN Journal of Hydraulic Engineering 2012-03-23

This study examines the impact of world's largest dam, Three Gorges Dam (TGD), on thermal dynamics Yangtze River (China). The analysis uses long-term observations river water temperature (RWT) in four stations and reconstructs RWT that would have occurred absence TGD. Relative to pre-TGD conditions, consistently warmed region due air (AT) increase. In addition, demonstrates TGD significantly affected downstream reach. At closest station (Yichang) TGD, annual cycle experienced a damped...

10.1088/1748-9326/aab9e0 article EN cc-by Environmental Research Letters 2018-03-27

This paper explores different analytical solutions of the tidal hydraulic equations in convergent estuaries. Linear and quasi‐nonlinear models are compared for given geometry, friction, amplitude at seaward boundary, proposing a common theoretical framework showing that main difference between examined lies treatment friction term. A general solution procedure is proposed set governing expressed dimensionless form, new expression damping derived as weighted average two solutions,...

10.1029/2012jc008000 article EN Journal of Geophysical Research Atmospheres 2012-08-17

10.1016/j.envsoft.2021.105075 article EN Environmental Modelling & Software 2021-05-07

Understanding the metal pollution can help governments and estuary management groups manage inputs. Here, we comprehensively analyzed behaviors of seven metals Cd, Zn, Cu, As, Pb, Cr, Hg in water responses these to hydrological connectivity Pearl River Estuary. The analyses were based on field measurements August-2016 January-2016 upper river mouth. We also assessed ecosystem health metals. Overall, this had an overall moderate level, with occasional severe perturbations. mean concentration...

10.1016/j.ecoenv.2021.112747 article EN cc-by-nc-nd Ecotoxicology and Environmental Safety 2021-09-03

Abstract. As the tidal wave propagates into an estuary, tidally averaged water level tends to rise in landward direction due density difference between saline and fresh asymmetry of friction. The effect friction on residual slope is even more remarkable when accounting for discharge. In this study, we investigate influence river discharge propagation Yangtze estuary with specific attention slope. This done by using a one-dimensional analytical model hydrodynamics level. We demonstrate...

10.5194/hess-18-4153-2014 article EN cc-by Hydrology and earth system sciences 2014-10-17

Abstract In many large estuaries there are significant variations in flow conditions due to the interaction between tide (with spring–neap changes) and river discharge wet–dry seasons), which is key understanding evolution of morphology resultant equilibrium state. To explore whether exists an state, what might control such a state dynamic environment, both numerical analytical methods have been used investigate relative importance contributions work done locally globally over wide range...

10.1002/esp.3790 article EN Earth Surface Processes and Landforms 2015-07-27

Abstract Riverine sediments have played an important role in the morphological evolution of river channels and deltas. However, sediment regime many world's rivers has been altered context global changes. In this study, temporal changes Pearl River were examined at different time scales, that is, annual, seasonal, monthly using Mann–Kendall test. The results revealed precipitation variability was responsible for seasonal distribution patterns long‐term water discharge; however, dam operation...

10.1002/hyp.11513 article EN Hydrological Processes 2018-04-02

Subseasonal to seasonal (S2S) precipitation forecasts can fill the gap between weather and forecasts. While raw from S2S models are informative, calibration is necessary correct systematic biases quantify forecast uncertainty facilitate applications of This paper develops a seven-parameter Bernoulli-Gamma-Gaussian model calibrate The Bernoulli distribution characterizes occurrence zero versus non-zero values precipitation, Gamma accounts for amounts bivariate Gaussian formulates relationship...

10.1016/j.jhydrol.2022.127896 article EN cc-by-nc-nd Journal of Hydrology 2022-05-05

Shoals and troughs are the fundamental geomorphological units of estuarine systems. However, their definition morphodynamic characteristics, influenced by complex dynamic environment, remain a critical challenge. This work introduces depth–area spatial function as quantitative criterion for shoals troughs, while simultaneously elucidating geodynamic implications. The Lingdingyang Bay (LDB) Pearl River Estuary serves case study. From 1901 to 2018, LDB consisted West Shoal, Middle East Shoal...

10.3389/fmars.2025.1525805 article EN cc-by Frontiers in Marine Science 2025-01-24

Abstract The self-circulating evaporative cooling technology, which utilizes latent heat, is developed to address the thermal dissipation challenges in wind power generation. To meet miniaturization requirements, condenser adopts plate-fin heat exchange without fans. This study presents a method for calculating airflow friction. Six different specifications of exchangers were fabricated. Measurements air inlet and outlet velocities conducted FD-2010-008 tunnel. Based on experimental data,...

10.1088/1742-6596/2932/1/012051 article EN Journal of Physics Conference Series 2025-01-01

A metal-free photoredox method for the synthesis of S-C-S and C-S bonds has been developed, offering a sustainable efficient approach to produce diaryl dithioacetals aryl benzyl sulfides. The...

10.1039/d5qo00218d article EN Organic Chemistry Frontiers 2025-01-01

The Pearl River Delta (PRD) is among the world’s most intricate delta systems, shaped by dynamic interaction of upstream runoff and downstream tidal dynamics. However, mechanisms underlying river-tide connectivity within such complex networks remains insufficiently understood, particularly nonlinear feedback loops spatiotemporal lag effects governing water level This study employs an information-theoretic framework to investigate in PRD, integrating relative mutual information...

10.5194/egusphere-egu25-6115 preprint EN 2025-03-14
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