Meixiu Yu

Meixiu Yu
Hohai University · College of Hydrology and Water Resources

PhD

About

33
Publications
5,826
Reads
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856
Citations
Introduction
1) Impact mechanism of the spatial distribution of urban effective imperviousness on the rainfall-runoff process 2) Agricultural drought 3) Ecohydrology
Additional affiliations
May 2020 - present
Hohai University
Position
  • Professor (Associate)
Description
  • Drought, ecohydrology
October 2019 - July 2020
Delft University of Technology
Position
  • Visiting Scholar
March 2014 - April 2020
Hohai University
Position
  • Lecturer
Education
September 2008 - December 2013
Hohai University
Field of study
  • Hydrology and Water Resources
September 2004 - June 2008
Hohai University
Field of study
  • Hydrology and Water Resources

Publications

Publications (33)
Article
Full-text available
Due to an intensification of anthropogenic activities and climate change in recent decades, the hydrological connections and relationships between rivers and lakes have been significantly modified globally. Poyang Lake is one of the largest freshwater lakes globally and is one of the few that remain naturally connected to the Yangtze River. To inve...
Article
Full-text available
Human activities both aggravate and alleviate streamflow drought. Here we show that aggravation is dominant in contrasting cases around the world analysed with a consistent methodology. Our 28 cases included different combinations of human-water interactions. We found that water abstraction aggravated all drought characteristics, with increases of...
Article
Full-text available
Recently, the Poyang Lake basin, one of the important commodity grain bases in China, is experiencing severe low-water conditions, frequent droughts, which reduced grain production and caused serious agricultural losses. Since the Poyang Lake basin is, decreasing the grain loss caused by drought in the region Research on the systematic agricultural...
Article
Full-text available
As a result of high-density urbanization and climate change, both the frequency and intensity of extreme urban rainfall are increasing. Drainage systems are not designed to cope with this increase, and as a result, floods are becoming more common in cities, particularly in the rapidly growing cities of China. To better cope with more frequent and s...
Article
Full-text available
River regulation by the construction of reservoirs represents one of the greatest challenges to the natural flow regime and ecological health of riverine systems globally. The Danjiangkou (DJK) Reservoir is the largest reservoir on the Hangjiang River and commenced operations in 1967. The reservoir was upgraded in 2012 to provide water resource for...
Article
Full-text available
Better understanding the impacts of land use changes on storm-based sedigraphs in semi-humid and humid regions is critical for their soil erosion control. Based on the LULC, soil, precipitation, evaporation, flow and sediment data in the 1990 s to 2000 s from the Dapoling catchment of the upper Huaihe river basin, land use changes from the 1990 s t...
Code
Voronoi diagram for polygons is a tool to create a Voronoi diagram also known as Thiessen polygons for polygons. It's based on Shapely and GeoPandas. There are lots of tools to create a Voronoi diagram for points, for example Create Thiessen Polygons (Analysis) in ArcGIS Pro or ArcGIS Desktop, Voronoi Polygons in QGIS, or voronoi_diagram in Shapely...
Code
Adaptive curvefitting is a tool to find potentially optimal models for your research data.
Article
Full-text available
Spatial scale is a crucial factor in drought propagation and characterization. To investigate the response behavior of the meteorological drought-hydrological drought propagation to different watershed scales, three nested subbasins in the upper Huaihe River basin were selected as case study sites. The Standardized Precipitation Index and the Stand...
Article
Full-text available
Dam building and reservoir operations alter the downstream hydrological regime, and as a result, affect the health of the river aquatic ecosystem, particularly for large-scale cascade reservoirs. This study investigated the impact of the Gezhouba Reservoir (GR) and the Three Gorges Reservoir (TGR) on the spawning conditions of two critical taxa, i....
Article
Full-text available
Impacts of the Three Gorges Reservoir (TGR) on the downstream hydrological extremes always draw public attentions, particularly during its (quasi) normal water storing period. To investigate the impact of the TGR on its downstream hydrological drought regime during different operation stages, Yichang and Cuntan stations were selected as the case st...
Conference Paper
Full-text available
Southwest China is abundant of rainfall and water resources, however, severe and extremely droughts hits it more frequently in recent years, caused huge loss of human lives and financial damages. To investigate the feasibility of the standardized stream index in Southwest China, the Nanpanjiang River basin above the Xiaolongtan hydrological station...
Conference Paper
Full-text available
The atmospheric evaporative demand, one of principal components in water cycle, its accurate estimation is essential for hydrological simulation and forecasting. The purpose of this paper was to propose a plant-growth based dual-source potential evapotranspiration distributed model and investigate its feasibility with the upper Huaihe River basin (...
Article
Full-text available
Both landscape and river systems over most regions of the world, within China in particular, have experienced unprecedented changes in the past decades, and their impacts from these changes undoubtedly have altered storm runoff generation characteristics and flood regimes in these areas. To assess the effect on flood regime of land-use pattern chan...
Article
Full-text available
Accurate and reliable drought monitoring is of primary importance for drought mitigation and reduction of social-ecological vulnerability. The aim of the paper was to propose a multiscale composited drought index (CDI) which could be widely used for drought monitoring and early warning in China. In the study, the upper Huaihe River basin above the...
Article
Full-text available
The Huaihe River Basin having China's highest population density (662 persons per km2) lies in a transition zone between the climates of North and South China, and is thus prone to drought. Therefore, the paper aims to develop an appropriate drought assessment approach for drought assessment in the Huaihe River basin, China. Based on the Principal...
Conference Paper
Full-text available
Accurate and reliable drought monitoring is of primary importance for drought mitigation and reduction of social-ecological vulnerability. The aim of the paper was to propose a short-term/long-term composited drought index (CDI) which could be widely used for drought monitoring and early warning in China. In the study, the upper Huaihe River basin...
Conference Paper
Full-text available
To investigate the agricultural land-use change on flood regime, the upper Huaihe River basin above the Dapoling station was selected as the case study site. Based on topography, land-use, hydrological and meteorological data in 1990s and 2010s, the improved distributed Xinanjiang model, with potential evapotranspiration being computed by coupling...
Article
With climate change and the rapid increase in water demand, droughts, whose intensity, duration and frequency have shown an increasing trend in China over the past decades, are increasingly becoming a critical constraint to China’s sustainable socio-economic development, especially in Northern China, even more so. Therefore, it is essential to deve...
Article
Full-text available
The Standardized Precipitation Evapotranspiration Index (SPEI) was computed based on the monthly precipitation and air temperature values at 609 locations over China during the period 1951–2010.Various characteristics of drought across China were examined including: long-term trends, percentage of area affected, intensity, duration, and drought fre...
Article
Full-text available
The flow regime of the Yangtze River (Changjiang) has been altered to some extent by intensified human activities over the past decades, particularly dam construction. To assess the impacts of dam building on the flow regime in the Yangtze River, two of the largest reservoirs on the upper reach, i.e.,the Gezhouba and Three Gorges reservoirs, have b...
Article
Full-text available
The processes of sediment generation in the upper Huaihe River basin have been altered by the intensified human activities over the past decades, particularly land-use change. To investigate the impacts of land-use change on the sediment yield characteristics in the upper Huaihe River, the catchment above the Xixian hydrological controlling station...
Article
Full-text available
Evaporation, which is an important factor in the water balance at the basin scale, is a critical variable in the determination of local available water resources. Since the potential evaporation is mainly influenced by meteorological variables, it is necessary to investigate the extent to which different meteorological variables affect the potentia...
Article
Full-text available
With population increase and economic growth, the development of water resources and hydropower resources of the Hanjiang River has been intensified by dam building, and consequently the sediment regime of the Hanjiang River has been altered to some extent. To assess dam-induced alterations in the sediment regime of the Hanjiang River quantitativel...
Article
With population increase and economic growth, the flow regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. Dam-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water users and instream ecological water requirements may...
Article
Full-text available
Drought in China is a recurring phenomenon that becomes one of the most damaging climate-related hazards to impact natural habitats, ecosystems, and many economic and social sectors. Thus, it is of critical significance to investigate the variation patterns of droughts over China with long-term data time series. In recent years, meteorologists have...
Conference Paper
Full-text available
Reservoir-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water uses, and as a result, how to optimize reservoir operation to maximize electricity generation is of significance by consideration of different water uses, and this frequently complicates water management decisions....
Article
Full-text available
The sediment regime of the Yangtze River (Changjiang) has been altered by intensified human activities over the past decades, particularly dam construction. To investigate the impacts of dam building on the sediment regime in the Yangtze River, two of the largest reservoirs on the upper reach, i.e. the Gezhouba reservoir and the Three Gorges reserv...
Conference Paper
The Yangtze River (Changjiang) is the third largest river in the world, and the alterations in its hydrological regime have global-scale impacts. However, with population increase and economic growth, the stream temperature regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. The alteration...
Conference Paper
With population increase and economic growth, the thermal regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. To assess dam-induced alterations in the thermal regime of the Yangtze River quantitatively, this paper selected two key hydrological stations (Yichang and Cuntan stations) below a...
Article
Full-text available
With population increase and economic growth, the flow regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. Dam-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water users and instream ecological water requirements may...
Article
Evapotranspiration, which is an important component of water cycle, is a critical variable in determination of local water resources available. This paper selected the upper Huaihe River as case study site. The daily reference evapotranspiration was computed by the Penman-Monteith method, and then the mean annual reference evapotranspiration (ETref...

Questions

Question (1)
Question
Which hydrological model could simulate low flow with relatively better results? Any suggestions? Many thanks.

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Projects

Project (1)
Project
The project will employ a research approach combining field observation, mechanism analyzation and model simulation and select the sponge test base in Zhenjiang City as a case study site. Firstly, different underlying surfaces of pervious sponge facilities and impervious area are chosen to carry out the whole, multi-element storm-runoff process experiment by considering different magnitudes and temporal distributions of storms and initial soil moisture, systematically revealing the runoff generation and concentration mechanism under different combinations of different rainfall types, initial soil moisture content and underlying conditions. Secondly, a distributed urban flood model which could explicitly reflect the spatial distribution of the effective imperviousness is built up by coupling with surface rainfall-runoff model, pipe network hydrodynamic model and storm inundation model together. Thirdly, based the different spatial distribution scenarios of the effective imperviousness, the hydrological effect under different rainfall types and initial soil moisture condition was simulated thereafter, disclosing the influence mechanism of the spatial distribution variation of effective imperviousness on the rainfall-runoff process. The output of the research could not only enrich and develop the theories of urban runoff generation and concentration as well as the urban flood and waterlogging presentation, but also is of great practical values in supporting urban construction layout of sponge cities and promoting the guarantee capability of urban water security.