Kyoto University · Environmental Science
Professor Binh Quang Nguyen's research lab specializes in hydrological and environmental modeling, with a strong focus on the impacts of climate change, human infrastructure, and land use changes on river systems in Southeast Asia—particularly in Vietnam’s tropical and highland basins. The lab employs advanced hydrological models such as SWAT to assess streamflow dynamics, sediment budgets, and morphological changes under various scenarios, including climate change projections and hydraulic infrastructure development. Research directions include flood and drought risk assessment, water resource management, and the sustainability of reservoir and dam operations in complex river basins.
Figures are computed from collected data and may differ slightly.
Forecasting streamflow is important for managing future water resources and environmental needs under the impacts of climate change. Moreover, quantifying the combined effects of future climate variations and human-made infrastructures, e.g., dams and reservoirs, poses a significant challenge. In this study, we used the Soil and Water Assessment Tool (SWAT) for a case study in the Srepok River Basin—a tributary of the Mekong River Basin. Here, we aim to reveal the impacts of various climate chan
In the present day, the acceleration of urban surface heat impacts resulting from urbanization and industrialization is critical for citizens and municipal governments in developing-country cities. The previous key findings have indicated the association between urban surface heat and the following areas: forests, mixed agricultural land, built-up area, and water bodies. This study was motivated by a lack of knowledge regarding the variation of temperature, evaporation, and humidity in Central V
Climate change is projected to bring substantial changes to hydroclimatic extremes, which will affect natural river regimes and have wide-ranging impacts on human health and ecosystems, particularly in Central Highland Vietnam. This study focuses on understanding and quantifying the projected impacts of climate change on streamflow in the Kon-Ha Thanh River basin, using the Soil and Water Assessment Tool (SWAT) between 2016 and 2099. The study examined projected changes in streamflow across thre
Abstract Hydraulic infrastructures, such as reservoirs and water diversion channels, cause altered streamflow worldwide. Therefore, this study aimed to assess the coupled impacts of reservoir operations and water transfer on downstream streamflow over 42 years (1979–2020) for a tropical river in Vietnam, the Vu Gia Thu Bon (VGTB). We also quantified variations in the multi‐sub‐basin contributions to the water budget associated with hydraulic structure development. Therefore, a semi‐distributed h
• Hydraulic jumps within in-ground stilling basins were classified into five types. • Steady submerged hydraulic jump is the most effective jump type. • The flow pattern depends more on the cross-wall height than the hydraulic conditions. A "stilling basin" is a structure used downstream of a dam to reduce energy flow and prevent damage to the dam structure or erosion downstream. The literature on energy dissipation in stilling basins has identified mechanisms such as abrupt drops, sudden enlarg
The Vu Gia Thu Bon (VGTB) River basin is critical for regional development and prosperity in water resources. However, human interventions (e.g., dam construction and sand mining) have significantly affected this basin's sediment budget and morphological alterations over recent decades. Such humane actions drive an imbalance in water resources in the basin from upstream to downstream. Therefore, this study investigated spatiotemporal changes in sediment budget and morphology alterations using lo
Sediment estimation would help practice sustainable watershed management and efficient reservoir operation. Different methods exist to estimate reservoir sedimentation based on the differences in sediment yield flowing in and releasing from the reservoir and successive bathymetric field measurements. This paper investigates the variability in sediment yield from watersheds and sedimentation in the A Vuong reservoir in central Vietnam using the soil and water assessment tool (SWAT) compared with
ABSTRACT The number of drought studies is increasing due to rising concerns about risk‐informed agriculture and water resource management. However, while most of this information is derived from meteorological variables, the literature on human‐induced drought for river segments is limited, especially in the tropical monsoon region. In this study, we quantify human‐caused hydrological droughts in segments of the Vu Gia Thu Bon (VGTB) River basin in Central Vietnam. Our objective is to gain a dee
Satellite Precipitation Products (SPPs) play a crucial role in hydrological modeling, particularly in data-scarce and climate-sensitive basins such as the Magat River Basin (MRB), Philippines—one of Southeast Asia’s most typhoon-prone and infrastructure-critical watersheds. This study presents the first full-cycle evaluation of nine widely used multi-source precipitation products (2000–2024), integrating raw validation against rain gauge observations, bias correction using quantile mapping, and
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