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| Titel |
The role of different factors related to social impact of heavy rain events: considerations about the intensity thresholds in densely populated areas |
| VerfasserIn |
L. Barbería, J. Amaro, M. Aran, M. C. Llasat |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 7 ; Nr. 14, no. 7 (2014-07-25), S.1843-1852 |
| Datensatznummer |
250118547
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| Publikation (Nr.) |
 copernicus.org/nhess-14-1843-2014.pdf |
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| Zusammenfassung |
In the assessment of social impact caused by meteorological events, factors
of different natures need to be considered. Not only does hazard itself
determine the impact that a severe weather event has on society, but also
other features related to vulnerability and exposure.
The requests of data related to insurance claims received in meteorological
services proved to be a good indicator of the social impact that a weather
event causes, according to studies carried out by the Social Impact Research
Group, created within the framework of the MEDEX project. Taking these
requests as proxy data, diverse aspects connected to the impact of heavy rain
events have been studied.
The rainfall intensity, in conjunction with the population density, has
established itself as one of the key factors in social impact studies. One of
the conclusions we obtained is that various thresholds of rainfall should be
applied for areas of varying populations. In this study, the role of rainfall
intensity has been analysed for a highly populated urban area like Barcelona.
A period without significant population changes has been selected for the
study to minimise the effects linked to vulnerability and exposure
modifications. First, correlations between rainfall recorded in different
time intervals and requests were carried out. Afterwards, a method to include
the intensity factor in the social impact index was suggested based on return
periods given by intensity–duration–frequency (IDF) curves. |
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