A5088536613- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Hydrology and Drought Analysis
- Water resources management and optimization
- Hydrological Forecasting Using AI
- Climate change impacts on agriculture
- Agricultural risk and resilience
- Remote Sensing in Agriculture
- Soil Moisture and Remote Sensing
- Plant Water Relations and Carbon Dynamics
- Hydrology and Sediment Transport Processes
- Reservoir Engineering and Simulation Methods
- Income, Poverty, and Inequality
- Water Systems and Optimization
- Cryospheric studies and observations
- Tropical and Extratropical Cyclones Research
- Forest ecology and management
- Rice Cultivation and Yield Improvement
- Radiative Heat Transfer Studies
- Electric Power System Optimization
- Precipitation Measurement and Analysis
- Conservation, Biodiversity, and Resource Management
- Supply Chain Resilience and Risk Management
- Remote Sensing and LiDAR Applications
- Soil and Unsaturated Flow
Chulalongkorn University
2016-2025
Norsk Hydro (Sweden)
2020
Imperial College London
2015-2016
Abstract Human-induced warming is modifying the water cycle. Adaptation to posed threats requires an understanding of hydrological responses climate variability. Whilst these can be computationally modelled, observed streamflow data essential for constraining models, and quantifying emerging trends in To date, identification such at global scale has been hindered by limitations – particular, prevalence direct human influences on which obscure climate-driven By removing influences, more...
Abstract. Droughts in Thailand are becoming more severe due to climate change. Developing a reliable drought monitoring and early warning system (DMEWS) is essential strengthen country's resilience droughts. However, for DMEWS be valuable, the indicators provided stakeholders must have relevance tangible impacts on ground. Here, we analyse indicator-to-impact relationships Thailand, using combination of correlation analysis machine learning techniques (random forest). In analysis, study link...
Abstract Drought communications constitute an important source of learning about climate risks and responses that can assist adaptation decision-making amongst those whose livelihoods are threatened by drought. This paper applies Protection Motivation Theory to explore associations between drought attitudes towards risk farmers in Northern Thailand. The analysis reveals links communications, farmers’ appraisal, their decisions, whilst with appraisal minimal. results highlight positive...
Ground heat flux may play an important role in surface energy balance. In this study we evaluate the performance of objective hysteresis model (OHM) for estimating ground from net radiation and compare it with linear regression model. The experimental sites include residential roofs (concrete), campus grassland, agricultural peat bog. Our field measurements show that mean partition coefficient to varied 0.47 (concrete roof) 0.079 (agricultural grassland). (lag) factors roof, bog were 0.55,...
Estimating river flows at ungauged sites is generally recognised as an important area of research. In countries or regions with rapid land development and sparse hydrological gauging networks, three particular challenges may arise—data scarcity, data quality, non-stationarity. Using from 44 gauged sub-catchments the upper Ping catchment in northern Thailand period 1995–2006, relevant flow response indices (runoff coefficient, base index seasonal elasticity flow) were regionalised by...
This study evaluated the impacts of climate change on hydro-meteorological droughts in Chao Phraya River Basin (CPRB), Thailand under two Representative Concentration Pathway (RCP) scenarios (RCP4.5 and RCP8.5). We used three Reginal Climate Models (RCMs) Southeast Asia Regional Downscaling/Coordinated Downscaling Experiment—Southeast (SEACLID/CORDEX-SEA), which are bias corrected. The Soil Water Assessment Tool (SWAT) was to simulate streamflow for future periods. Standardized Precipitation...
Flooding is a major natural hazard that can cause significant damage to socioeconomic and ecological systems. This study presents an approach producing the maximum flood inundation duration maps over Chao Phraya River Basin (CPRB), Thailand. An integrated numerical model spatial analysis tool were utilized in this study. The Rainfall-Runoff-Inundation (RRI) was first used simulate both river discharge depth. Then, with different return periods estimated using Geographical Information System...
This study presented a two-year data set of sensible heat and water vapor fluxes above humid subtropical montane Cypress forest, located at 1650 m a.s.l. in northeastern Taiwan. The focuses this were to investigate (1) the diurnal seasonal variations canopy resistance forest; (2) mechanism why fixed could work when implementing Penman–Monteith equation for hourly evapotranspiration estimation. Our results showed distinct flux, but on contrary, flux did not change as much with seasons....
Due to a continuous increase in global temperature, the climate has been changing without sign of alleviation. An air temperature caused changes hydrologic cycle, which have followed by several emergencies natural extreme events around world. Thailand is one countries that incurred huge loss assets and lives from flood drought events, especially northern part. Therefore, purpose this study was assess hydrological regime Yom Nan River basins, affected change as well possibility floods...
Floods are a regularly occurring form of natural disaster in Thailand. They commonly occur during the monsoon season. Although Chao Phraya River basin is strategically important because it accommodates several primary sectors that backbone Thai economy, vulnerable to flooding. The causes flooding this both and human-induced. Climate land-use changes believed be factors elevated severity recent flood events. In 2011, Thailand suffered worst floods half century; ranked as among top five...
The Chao Phraya River Basin is one of the largest in Asia and highly vulnerable to water-related disasters. Based on rainfall gauge data over 36 years (1981–2016), a frequency analysis was performed for this basin understand evaluate its overall flood risk; daily measurements 119 rain stations within were considered. Four common probability distributions, i.e., Log-Normal (LOG), Gumbel type-I (GUM), Pearson type-III (PE3), Log-Pearson (LP3) used calculate return period at each station...
The intensification of drought affects agricultural production, leading to economic losses, environmental degradation and social impacts. To move toward more resilient system configurations requires understanding the processes that shape farmers' adaptation amidst complex institutional contexts. Social networks are an important part collective action for supporting adaptive capacity there continuing calls strengthen network connectivity governance under impacts climate change. Through a...
Drought is a natural hazard that stresses ecosystems, agricultural production, food security, and local economies. Given ongoing hydropower dam development in the Sesan Srepok Basins, two most dammed tributaries Lower Mekong Basin, characterizing baseline drought events understanding how dams modify downstream flow needed to manage water resources mitigate effects. We used Soil & Water Assessment Tool (SWAT) estimate streamflow data from 2001 2019. For both rivers, we found runoff...
Flow time-series data are crucial for water resource and flood management. In catchments where flow observations not available or of poor quality, regionalization methods needed to generate time series. Explicit attention quality uncertainty can give insight into the value information, model predictive capability, priorities new better data. While such analyses becoming more common in literature, there is a particular lack knowledge about suitable modeling approaches tropical,...
This research aims to investigate optimal hydropower production of multi-reservoirs in Lao PDR and develop reservoir rule curves. The Nam Ngum 1 2 (NN1 NN2, respectively) reservoirs the River basin (NNRB), which is located middle Laos, are selected as study areas. Mixed integer nonlinear programming (MINLP) developed an optimization model maximize joint operation NN1 NN2. curves established by using storage level estimated model. Given limited sideflow data, integrated flood analysis system...
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Rice production within the Tonle Sap basin is a critical driver of economic and social development in Cambodia. This region has been subject to various natural disasters, with increasing attention directed towards drought. study aims evaluate impacts drought on agriculture food security through an in-depth case Baribo basin, sub-basin Sap. The analysis spans period from 1985 2008, timeframe characterized by relatively high-quality data. Drought assessment was conducted using ground...
Reservoir is one of water management facilities. The role the reservoir has become prominent in recent years due to increased demand for water, intensified pressure on limited resources, more frequent extreme weather, and heightened degree climate change. multiple multi-purpose systems complex as it involves issues dimensionalities, nonlinearities conflicts between different objectives. Optimization simulation models have been used a tool providing quantitative information regarding optimal...
The 2011 flood on the Chao Phraya River in Thailand caused enormous damage. damage was greatest to industrial sector, accounting for more than 70% of estimated economic damage, and resulting disruption supply chains global companies has spread not only throughout but other countries around world. In order reduce such it is necessary prepare a manual that makes use past experiences or business continuity planning (BCP) assumes floods. addition, management (BCM) needed establish enhance BCP....