Climate Change and its Implications for Irrigation, Drainage and Flood Management

2021 ◽  
Vol 70 (4) ◽  
pp. 976-978
Author(s):  
Ashwin B Pandya ◽  
Prachi Sharma
Keyword(s):  
Climate Change ◽  
Flood Management ◽  
Irrigation Drainage

Climate Change and Its Implications for Irrigation, Drainage and Flood Management

2021 ◽  
pp. 95-110
Author(s):  
Ashwin B. Pandya ◽  
Sahdev Singh ◽  
Prachi Sharma
Keyword(s):  
Climate Change ◽  
Flood Management ◽  
Irrigation Drainage

scholarly journals Spatial Prediction of Future Flood Risk: An Approach to the Effects of Climate Change

Geosciences ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 25
Author(s):  
Mohammadtaghi Avand ◽  
Hamid Reza Moradi ◽  
Mehdi Ramazanzadeh Lasboyee
Keyword(s):  
Climate Change ◽  
Spatial Prediction ◽  
Flood Management ◽  
Management Program ◽  
Climate Change Scenarios ◽  
Ann Model ◽  
Probability Map ◽  
Flood Susceptibility ◽  
Flood Probability ◽  
Model Training

Preparation of a flood probability map serves as the first step in a flood management program. This research develops a probability flood map for floods resulting from climate change in the future. Two models of Flexible Discrimination Analysis (FDA) and Artificial Neural Network (ANN) were used. Two optimistic (RCP2.6) and pessimistic (RCP8.5) climate change scenarios were considered for mapping future rainfall. Moreover, to produce probability flood occurrence maps, 263 locations of past flood events were used as dependent variables. The number of 13 factors conditioning floods was taken as independent variables in modeling. Of the total 263 flood locations, 80% (210 locations) and 20% (53 locations) were considered model training and validation. The Receiver Operating Characteristic (ROC) curve and other statistical criteria were used to validate the models. Based on assessments of the validated models, FDA, with a ROC-AUC = 0.918, standard error (SE = 0.038), and an accuracy of 0.86% compared to the ANN model with a ROC-AUC = 0.897, has the highest accuracy in preparing the flood probability map in the study area. The modeling results also showed that the factors of distance from the River, altitude, slope, and rainfall have the greatest impact on floods in the study area. Both models’ future flood susceptibility maps showed that the highest area is related to the very low class. The lowest area is related to the high class.

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

2021 ◽  
Vol 6 (2) ◽  
pp. p55
Author(s):  
Wilawan Boonsri Prathaithep ◽  
Vilas Nitivattananon
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Environmental Assessment ◽  
Flood Risk ◽  
Assessment Tool ◽  
Flood Management ◽  
Integrated System ◽  
Strategic Environmental Assessment ◽  
Human Environment ◽  
Impacts Of Climate Change

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.

Management of Drought and Floods in Romania

2017 ◽  
pp. 20-63 ◽  
Author(s):  
Lucica Roşu ◽  
Remus Zăgan
Keyword(s):  
Climate Change ◽  
Prevention And Control ◽  
Flood Management ◽  
Emergency Situations ◽  
Droughts And Floods ◽  
Eu Directives ◽  
International Conventions ◽  
And Control ◽  
Operative Measures ◽  
The Eu

This chapter presents concepts of drought and flood management, information on the steps taken and on the national policies applied in Romania in this field. The Romanian institutional framework for the management of droughts and floods is detailed, as well as the planning phase, the plans, the strategies and the programs that establish Romania's national priorities on climate change and the management of droughts and floods, in line with the EU directives and international conventions and treaties Romania is part of. Information is also given about preventive, operative measures of intervention and rehabilitation, as part of the operational and emergency situations response management, as well as the guidelines, trends and future actions of prevention and control for this category of disasters in Romania.

scholarly journals Evaluating wider benefits of natural flood management strategies: an ecosystem-based adaptation perspective

2014 ◽  
Vol 45 (6) ◽  
pp. 774-787 ◽  
Author(s):  
Oana Iacob ◽  
John S. Rowan ◽  
Iain Brown ◽  
Chris Ellis
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Meta Analysis ◽  
Management Strategies ◽  
Flood Management ◽  
Adaptation Strategy ◽  
Natural Systems ◽  
Land Drainage ◽  
Trade Offs ◽  
Restoration Strategies

Climate change is projected to alter river flows and the magnitude/frequency characteristics of floods and droughts. Ecosystem-based adaptation highlights the interdependence of human and natural systems, and the potential to buffer the impacts of climate change by maintaining functioning ecosystems that continue to provide multiple societal benefits. Natural flood management (NFM), emphasising the restoration of innate hydrological pathways, provides important regulating services in relation to both runoff rates and water quality and is heralded as a potentially important climate change adaptation strategy. This paper draws together 25 NFM schemes, providing a meta-analysis of hydrological performance along with a wider consideration of their net (dis) benefits. Increasing woodland coverage, whilst positively linked to peak flow reduction (more pronounced for low magnitude events), biodiversity and carbon storage, can adversely impact other provisioning service – especially food production. Similarly, reversing historical land drainage operations appears to have mixed impacts on flood alleviation, carbon sequestration and water quality depending on landscape setting and local catchment characteristics. Wetlands and floodplain restoration strategies typically have fewer disbenefits and provide improvements for regulating and supporting services. It is concluded that future NFM proposals should be framed as ecosystem-based assessments, with trade-offs considered on a case-by-case basis.

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

2017 ◽  
Vol 41 (2) ◽  
pp. 222-237 ◽  
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.

scholarly journals Social Acceptability of Flood Management Strategies under Climate Change Using Contingent Valuation Method (CVM)

2019 ◽  
Vol 11 (18) ◽  
pp. 5053 ◽  
Author(s):  
Fatemeh Fadia Maghsood ◽  
Hamidreza Moradi ◽  
Ronny Berndtsson ◽  
Mostafa Panahi ◽  
Alireza Daneshi ◽  
...  
Keyword(s):  
Climate Change ◽  
Contingent Valuation ◽  
Local Community ◽  
Contingent Valuation Method ◽  
Management Strategies ◽  
Flood Management ◽  
Social Acceptability ◽  
Climate Modelling ◽  
Valuation Method ◽  
The Social

Floods are natural hazards with serious impact on many aspects of human life. The Intergovernmental Panel on Climate Change (IPCC) reported that climate change already has significant impact on magnitude and frequency of flood events worldwide. Thus, it is suggested to adopt strategies to manage damage impacts of climate change. For this, involving the local community in the decision-making process, as well as experts and decision-makers, is essential. We focused on assessing the social acceptability of flood management strategies under climate change through a socio-hydrological approach using the Contingent Valuation Method (CVM). For this purpose as well, hydro-climate modelling and the Analytical Network Process (ANP) were used. Among twelve investigated flood management strategies, “river restoration”, “agricultural management and planning”, and “watershed management” were the publicly most accepted strategies. Assessment of the social acceptability of these three strategies was carried out by use of the CVM and Willingness to Pay (WTP) methodology. Generally, 50%, 38%, and 18% were willing to pay and 44%, 48%, and 52% were willing to contribute flood management strategy in zones 1, 2, and 3, respectively. Overall, peoples’ WTP for flood management strategies decreased with increasing distance from the river. Among different investigated dependent variables, household income had the highest influence on WTP.

scholarly journals Bottom-Up Assessment of Climate Risk and the Robustness of Proposed Flood Management Strategies in the American River, CA

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 907
Author(s):  
Kara DiFrancesco ◽  
Alix Gitelman ◽  
David Purkey
Keyword(s):  
Climate Change ◽  
Decision Making ◽  
Cost Effectiveness ◽  
Management Strategies ◽  
Flood Management ◽  
Flood Frequency ◽  
Bottom Up ◽  
American River ◽  
The Face ◽  
System Robustness

The hydrologic nonstationarity and uncertainty associated with climate change requires new decision-making methods to incorporate climate change impacts into flood frequency and flood risk analyses. To aid decision-making under climate change, we developed a bottom-up approach for assessing the performance of flood management systems under climate uncertainty and nonstationarity. The developed bottom-up approach was applied to the American River, CA, USA flood management system by first identifying the sensitivity and vulnerability of the system to different climates. To do this, we developed a climate response surface by calculating and plotting Expected Annual Damages (EAD, $/year) under different flood regimes. Next, we determined a range of plausible future climate change and flood frequency scenarios by applying Bayesian statistical methods to projected future flows derived from a Variable Infiltration Capacity (VIC) model forced with Global Circulation Model (GCM) output. We measured system robustness as the portion of plausible future scenarios under which the current flood system could meet its performance goal. Using this approach, we then evaluated the robustness of four proposed management strategies in the 2012 Central Valley Flood Protection Plan in terms of both flood risk and cost-effectiveness, to assess the performance of the strategies in the face of climate risks. Results indicated that the high sensitivity of the expected damages to changes in flood regimes makes the system extremely vulnerable to a large portion of the plausible range of future flood conditions. The management strategy that includes a combination of nature-based flood management actions along with engineered structures yields the greatest potential to increase system robustness in terms of maintaining EAD below an acceptable risk threshold. However, this strategy still leaves the system vulnerable to a wide range of plausible future conditions. As flood frequency regimes increase in intensity from the current conditions, the cost-effectiveness of the management strategies increases, to a point, before decreasing. This bottom up analysis demonstrated a viable decision-making approach for water managers in the face of uncertain and changing future conditions. Neglecting to use such an approach and omitting climate considerations from water resource planning could lead to strategies that do not perform as expected or which actually lead to mal-adaptations, increasing vulnerability to climate change.

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