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Drought risk assessment and management: a conceptual framework

Source(s):  European Commission (EC)
European Commission Joint Research Centre (JRC)

Drought risk as defined here is the likelihood to incur damages and economic losses during and after a drought and depends on the interactions between three dimensions:  

  1. the severity and the probability of occurrence of a certain drought event,  
  2. the exposed assets and/or people, and 
  3. their intrinsic vulnerability or capacity to cope with the hazard.  

The characterization of these dimensions and the representation of their interactions over different socio-economic sectors poses several challenges.  

This document discusses these challenges and proposes a theoretical framework to assess drought risk at global scale in order to provide policy relevant information. Based on the described conceptual approach, the JRC developed the Global Drought Observatory (GDO) as a first operational dynamic drought risk monitor for the entire globe. 

In the context of global warming, droughts are increasingly threatening societies. They last for months or even years, affecting wide areas and large numbers of people, with single drought events sometimes causing economic damages for several billion Euros. Besides the economic damages, droughts can compromise ecosystems and threaten food security in the most vulnerable countries. 

To reduce drought impacts, drought risk assessments need to be implemented in order to support policy makers and water managers in developing coping strategies and drought management plans. Due to the wide-ranging direct and indirect, often cascading impacts, drought risk assessments need to include information tailored to specific sectors and oriented to the needs of specific users. 

The report is structured as follows:  Firstly, the causes and characteristics of drought events as well as their link with climate variability and climate change are discussed (chapters 1 and 2).  Secondly, the concept of drought risk is presented, including a first approach to map drought risk at global scale as a function of hazard, exposure and vulnerability (chapter 3). This framework is then linked to expected impacts in different economic sectors and the environment, including the discussion of case studies from Argentina, South Africa, Syria and the United States (chapter 4).  Finally, a brief introduction to the key aspects of drought risk management and an outlook on future challenges and opportunities are presented in chapters 5 and 6.

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  • Drought risk assessment and management: a conceptual framework
  • Publication date 2018
  • Author(s) Vogt, Jürgen V.; Naumann, Gustavo; Masante, Dario; Spinoni, Jonathan; Cammalleri, Carmelo; Erian, Wadid; Pischke, Frederik; Pulwarty, Roger; Barbosa, Paulo
  • Number of pages 68 p.
  • ISBN/ISSN 978-92-79-97469-4

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