Integrating Strategic Environmental Assessment to Climate Change Adaption in the Chao Phraya River Basin: Case Study Flood Management Plans in Ayutthaya

Traditionally, flood management has concentrated on providing protection against floods using technical measures, but there is currently an international shift towards a more integrated system of flood risk management, whereby flood risk is defined as the probability of flooding multiplied by the potential consequences. Climate change is a great challenge to sustainable development and the Millennium Development Goals (MDGs) in Thailand. The main purpose of this paper is to highlight the challenges associated with the current situation and projected impacts of climate change on the disasters and the human environment in Thailand, to review and explore the potential of Strategic Environmental Assessment (SEA), and to propose SEA in making informed decisions relevant to the implementation of the new adaptation framework in a flood management plan. Thus, current measures on how Thailand is responding to the recent impacts of climate change in river basin planning are presented. It is imperative that an appropriate environmental assessment tool, such as SEA be employed in making rational decisions regarding adaptation frameworks. SEA offers a structured and proactive environmental tool for integrating of climate change adaption into formulating Policies, Plans, and Programs (PPPs) among relevant sectors.

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The evolution of climate change guidance for fluvial flood risk management in England

Progress in Physical Geography Earth and Environment ◽

10.1177/0309133317702566 ◽

2017 ◽

Vol 41 (2) ◽

pp. 222-237 ◽

Cited By ~ 12

Author(s):

Nicholas S Reynard ◽

Alison L Kay ◽

Molly Anderson ◽

Bill Donovan ◽

Caroline Duckworth

Keyword(s):

Climate Change ◽

Risk Management ◽

Flood Risk ◽

Flood Management ◽

Flood Risk Management ◽

Future Climate Change ◽

Adaptation Measures ◽

Increased Risk ◽

The Uk ◽

Impacts Of Climate Change

Floods are one of the biggest natural hazards to society, and there is increasing concern about the potential impacts of climate change on flood occurrence and magnitude. Furthermore, flood risk is likely to increase in the future not just through increased flood occurrence, but also through socio-economic changes, such as increasing population. The extent to which adaptation measures can offset this increased risk will depend on the level of future climate change, but there exists an urgent need for information on the potential impacts of climate change on floods, so that these can be accounted for by flood management authorities and local planners aiming to reduce flood risk. Agencies across the UK have been pro-active in providing such guidance for many years and in refining it as the science of climate change and hydrological impacts has developed. The history of this guidance for fluvial flood risk in England is presented and discussed here, including the recent adoption of a regional risk-based approach. Such an approach could be developed and applied to flood risk management in other countries, and to other sectors affected by climate change.

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Simulated Impacts of Climate Change on Surface Water Yields over the Sondu Basin in Kenya

International Journal for Innovation Education and Research ◽

10.31686/ijier.vol4.iss8.584 ◽

2016 ◽

Vol 4 (8) ◽

pp. 161-173

Author(s):

Stephen Kibe Rwigi ◽

Jeremiah N. Muthama ◽

Alfred O. Opere ◽

Franklin J. Opijah ◽

Francis N. Gichuki

Keyword(s):

Climate Change ◽

Surface Water ◽

River Basin ◽

Assessment Tool ◽

Swat Model ◽

Eastern Africa ◽

Fourth Generation ◽

Climate Change Scenarios ◽

Time Step ◽

Impacts Of Climate Change

Potential impacts of climate change on surface water yields over the Sondu River basin in the western region of Kenya were analysed using the Soil and Water Assessment Tool (SWAT) model with climate input data obtained from the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) model. Daily time step regional climate scenarios at a spatial grid resolution of 0.44Ëš over the Eastern Africa region were matched to the Sondu river basin and used to calibrate and validate the SWAT model.Analysis of historical and projected rainfall over the basin strongly indicated that the climate of the area will significantly change with wetter climates being experienced by 2030 and beyond. Projected monthly rainfall distribution shows increasing trends in the relatively dry DJF and SON seasons while showing decreasing trends in the relatively wet MAM and JJA seasons. Potential changes in water yields resulting from climate change were computed by comparing simulated yields under climate change scenarios with those simulated under baseline conditions. There was evidence of substantial increases in water yields ranging between 88% and 110% of the baseline yields by 2030 and 2050 respectively. Although simulated water yields are subject to further verification from observed values, this study has provided useful information about potential changes in water yields as a result of climate change over the Sondu River basin and in similar basins in this region.

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Assessment and Simulation of Impacts of Climate Change on Erosion and Water Flow by Using the Soil and Water Assessment Tool and GIS: Case Study in Upper Cau River basin in Vietnam

Vietnam Journal of Earth Sciences ◽

10.15625/0866-7187/39/4/10741 ◽

2017 ◽

Vol 39 (4) ◽

Cited By ~ 6

Author(s):

Tran Hong Thai ◽

Nguyen Phuong Thao ◽

Bui Tien Dieu

Keyword(s):

Climate Change ◽

River Basin ◽

Water Flow ◽

Assessment Tool ◽

Water Assessment ◽

Soil And Water ◽

Impacts Of Climate Change

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Impacts of Climate Change and Human Activity on the Runoff Changes in the Guishui River Basin

Land ◽

10.3390/land9090291 ◽

2020 ◽

Vol 9 (9) ◽

pp. 291 ◽

Cited By ~ 2

Author(s):

Meilin Wang ◽

Yaqi Shao ◽

Qun’ou Jiang ◽

Ling Xiao ◽

Haiming Yan ◽

...

Keyword(s):

Climate Change ◽

River Basin ◽

Human Activities ◽

Assessment Tool ◽

Swat Model ◽

Temporal Variations ◽

Annual Runoff ◽

Average Annual Runoff ◽

Runoff Changes ◽

Impacts Of Climate Change

Guishui River Basin in northwestern Beijing has ecological significance and will be one of the venues of the upcoming Beijing Winter Olympic Games in 2022. However, accelerating climate change and human disturbance in recent decades has posed an increasing challenge to the sustainable use of water in the basin. This study simulated the runoff of the Guishui River Basin using the Soil and Water Assessment Tool (SWAT) model to reveal the spatio-temporal variations of runoff in the basin and the impacts of climate change and human activities on the runoff changes. The results showed that annual runoff from 2004 to 2018 was relatively small, with an uneven intra-annual runoff distribution. The seasonal trends in runoff showed a decreasing trend in spring and winter while an increasing trend in summer and autumn. There was a first increasing and then decreasing trend of average annual runoff depth from northwest to southeast in the study area. In addition, the contributions of climate change and human activities to changes in runoff of the Guishui River Basin were 60% and 40%, respectively, but with opposite effects. The results can contribute to the rational utilization of water resources in the Guishui River Basin.

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Impacts of climate change under CMIP5 RCP scenarios on the streamflow in the Dinder River and ecosystem habitats in Dinder National Park, Sudan

Hydrology and Earth System Sciences ◽

10.5194/hess-20-1331-2016 ◽

2016 ◽

Vol 20 (4) ◽

pp. 1331-1353 ◽

Cited By ~ 21

Author(s):

Amir K. Basheer ◽

Haishen Lu ◽

Abubaker Omer ◽

Abubaker B. Ali ◽

Abdeldime M. S. Abdelgader

Keyword(s):

Climate Change ◽

River Basin ◽

National Park ◽

Assessment Tool ◽

Coupled Model ◽

Rcp Scenarios ◽

Climate Conditions ◽

Global Circulation Models ◽

The 1960S ◽

Impacts Of Climate Change

Abstract. The fate of seasonal river ecosystem habitats under climate change essentially depends on the changes in annual recharge of the river, which are related to alterations in precipitation and evaporation over the river basin. Therefore, the change in climate conditions is expected to significantly affect hydrological and ecological components, particularly in fragmented ecosystems. This study aims to assess the impacts of climate change on the streamflow in the Dinder River basin (DRB) and to infer its relative possible effects on the Dinder National Park (DNP) ecosystem habitats in Sudan. Four global circulation models (GCMs) from Coupled Model Intercomparison Project Phase 5 and two statistical downscaling approaches combined with a hydrological model (SWAT – the Soil and Water Assessment Tool) were used to project the climate change conditions over the study periods 2020s, 2050s, and 2080s. The results indicated that the climate over the DRB will become warmer and wetter under most scenarios. The projected precipitation variability mainly depends on the selected GCM and downscaling approach. Moreover, the projected streamflow is quite sensitive to rainfall and temperature variation, and will likely increase in this century. In contrast to drought periods during the 1960s, 1970s, and 1980s, the predicted climate change is likely to affect ecosystems in DNP positively and promote the ecological restoration for the habitats of flora and fauna.

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Impacts of climate change and LULC change on runoff in the Jinsha River Basin

Journal of Geographical Sciences ◽

10.1007/s11442-020-1716-9 ◽

2020 ◽

Vol 30 (1) ◽

pp. 85-102 ◽

Cited By ~ 1

Author(s):

Qihui Chen ◽

Hua Chen ◽

Jun Zhang ◽

Yukun Hou ◽

Mingxi Shen ◽

...

Keyword(s):

Climate Change ◽

River Basin ◽

Jinsha River ◽

Lulc Change ◽

Impacts Of Climate Change

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Application of SWAT in Hydrological Simulation of Complex Mountainous River Basin (Part II: Climate Change Impact Assessment)

Water ◽

10.3390/w13111548 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1548

Author(s):

Suresh Marahatta ◽

Deepak Aryal ◽

Laxmi Prasad Devkota ◽

Utsav Bhattarai ◽

Dibesh Shrestha

Keyword(s):

Climate Change ◽

River Basin ◽

Climate Models ◽

Assessment Tool ◽

Swat Model ◽

Global Climate Models ◽

Climate Data ◽

The Future ◽

The Impact ◽

Mountainous River

This study aims at analysing the impact of climate change (CC) on the river hydrology of a complex mountainous river basin—the Budhigandaki River Basin (BRB)—using the Soil and Water Assessment Tool (SWAT) hydrological model that was calibrated and validated in Part I of this research. A relatively new approach of selecting global climate models (GCMs) for each of the two selected RCPs, 4.5 (stabilization scenario) and 8.5 (high emission scenario), representing four extreme cases (warm-wet, cold-wet, warm-dry, and cold-dry conditions), was applied. Future climate data was bias corrected using a quantile mapping method. The bias-corrected GCM data were forced into the SWAT model one at a time to simulate the future flows of BRB for three 30-year time windows: Immediate Future (2021–2050), Mid Future (2046–2075), and Far Future (2070–2099). The projected flows were compared with the corresponding monthly, seasonal, annual, and fractional differences of extreme flows of the simulated baseline period (1983–2012). The results showed that future long-term average annual flows are expected to increase in all climatic conditions for both RCPs compared to the baseline. The range of predicted changes in future monthly, seasonal, and annual flows shows high uncertainty. The comparative frequency analysis of the annual one-day-maximum and -minimum flows shows increased high flows and decreased low flows in the future. These results imply the necessity for design modifications in hydraulic structures as well as the preference of storage over run-of-river water resources development projects in the study basin from the perspective of climate resilience.

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