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Developing criteria for a stakeholder-centred evaluation of climate services: the case of extreme event attribution for storm surges at the German Baltic Sea

Maria Schwab 1  ,  
 
1
Helmholtz-Zentrum Geesthacht
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ABSTRACT:
Science-based knowledge about climate-related hazards is an inevitable part of the knowledge basis needed for many stakeholders’ decision-making. Despite continuous advances in climate science, much of this knowledge is perceived to be hardly accessible, understandable, or relevant to stakeholders. One relatively new field where these aspects may become evident is extreme weather event attribution. It has received much attention in science in recent years, but its potential usefulness to stakeholders has rarely been addressed in the literature so far. This study has therefore developed criteria for evaluating potential climate services from a stakeholder perspective, using the example of findings from extreme event attribution. This is illustrated in an empirical mixed-method study about decision-makers dealing with storm surge risks at the German Baltic Sea Coast and (re)insurance sector representatives. The study builds on interviews and workshops with potential users of extreme event attribution. It reveals that there are three main groups of criteria which matter most to the stakeholders in question: 1) trustworthiness, 2) context-sensitivity and decision-relevance, 3) clarity and comprehensibility. Having appropriate evaluation categories, as well as processes to identify stakeholder-specific criteria, will facilitate the inclusion of values, knowledge contexts, and interests. Many stakeholders emphasized that they need a trustworthy knowledge broker who provides decisionoriented information which is intuitively accessible, understandable, and in their mother tongue. Being independent, scientifically competent, and in a continuous dialogue with both scientists and stakeholders, established regional and sector-specific climate services can facilitate the fulfilment of these requirements. A stakeholder-oriented evaluation will thereby help to make climate services more useful to potential user groups – even if a product is not in use yet, as is the case for extreme event attribution products.
CORRESPONDING AUTHOR:
Maria Schwab   
Helmholtz-Zentrum Geesthacht, Max-Planck-Str. 1, 21502 Geesthacht, Germany
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