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National Technical University of Athens (NTUA) 2016

Methods and tools supporting operational drought risk management in water stressed areas

Kossida, Magdalini ; Κοσσίδα, Μαγδαληνή

Titre : Methods and tools supporting operational drought risk management in water stressed areas

Μέθοδοι και εργαλεία για την υποστήριξη της επιχειρησιακής διαχείρισης του κινδύνου ξηρασίας σε περιοχές με υδατικές πιέσεις

Auteur : Kossida, Magdalini ; Κοσσίδα, Μαγδαληνή

Etablissement de soutenance : National Technical University of Athens (NTUA)

Grade : Doctoral Thesis 2016

The overall scope of the research is to develop operational methods and tools for supporting drought risk management in water stressed areas. It aims at linking science to the decision and policy-making process and providing supportive engineering tools. It proposes a holistic methodology based on the basic concepts of mainstreaming and proactive drought risk management, implementing a step-wise approach. Europe has experienced in the past 40 years drought episodes of various severities, with adverse impacts on the environment and the society. Policy actions have been intensified in order to increase the resilience of the affected regions. In this direction, the current research proposes a generic process for DRM mainstreaming, building around four basic steps : - Definition of a Drought Risk Profile - Identify DRM options : design and simulation of mitigation measures - Prioritize DRM options : Optimization and Decision-making - Internalize DRM : Definition of policy targets and Implementation Across these four steps, the following tools and methods have been developed : - A methodology to map Drought Hazard, based on operational precipitation-derived indicators. A new drought indicator (DHI) has been developed - A methodology for the characterization and mapping of Drought Vulnerability. A new drought indicator (DVI) has been developed, which is based on the balance between water resources availability and demand - A methodology for developing a Drought Risk Profile (DRP) by overlaying the hazard and vulnerability components - A generic methodology for designing Demand Management Options (i.e. interventions and measures covering management, technological and economic aspects) for the urban and agricultural sectors, incorporating the development of “cost-effective intervention curves” - A methodology for linking interventions to the decision-making process. A Decision Support System (DSS) has been developed, consisting of three components : the WEAP21 (simulation engine), MATLAB (optimization engine), the intervention curves (library of measures) - Practical recommendations on internalizing DRM. A methodology for testing the robustness of the optimization results under future climate and socio-economic scenarios has been defined. Practical suggestions on how to define policy targets and how to implement a process for integrating them into development frameworks are drafted. The proposed methodology and tools have been evaluated in the Ali-Efenti River Basin in Greece.


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