Articles | Volume 25, issue 7
https://doi.org/10.5194/nhess-25-2351-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-25-2351-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Tracing online flood conversations across borders: a watershed-level analysis of geo-social media topics during the 2021 European flood
Sébastien Dujardin
CORRESPONDING AUTHOR
Department of Geography, University of Namur, Namur, Belgium
ILEE - Institute of Life, Earth and Environment, University of Namur, Namur, Belgium
Dorian Arifi
CORRESPONDING AUTHOR
Department of Geoinformatics – Z_GIS, University of Salzburg, Salzburg, Austria
IT:U Interdisciplinary Transformation University, Linz, Austria
Sebastian Schmidt
Department of Geoinformatics – Z_GIS, University of Salzburg, Salzburg, Austria
IT:U Interdisciplinary Transformation University, Linz, Austria
Catherine Linard
Department of Geography, University of Namur, Namur, Belgium
ILEE - Institute of Life, Earth and Environment, University of Namur, Namur, Belgium
Bernd Resch
Department of Geoinformatics – Z_GIS, University of Salzburg, Salzburg, Austria
IT:U Interdisciplinary Transformation University, Linz, Austria
Center for Geographic Analysis, Harvard University, Cambridge, MA, USA
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Short summary
Our research explores how social media can help understand public responses to floods, focusing on the 2021 western European flood. We found that discussions varied by location and flood impact: in-disaster concerns were more common in severely affected upstream areas, while post-disaster topics dominated downstream. Findings show the potential of social media for improving disaster coordination along cross-border rivers in time-sensitive situations.
Our research explores how social media can help understand public responses to floods, focusing...
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