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| Titel |
A flood geodatabase and its climatological applications: the case of Catalonia for the last century |
| VerfasserIn |
M. Barnolas, 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 Science ; 7, no. 2 ; Nr. 7, no. 2 (2007-04-05), S.271-281 |
| Datensatznummer |
250004451
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| Publikation (Nr.) |
 copernicus.org/nhess-7-271-2007.pdf |
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| Zusammenfassung |
| Floods are the natural hazards that produce the highest number of casualties
and material damage in the Western Mediterranean. An improvement in flood
risk assessment and study of a possible increase in flooding occurrence are
therefore needed. To carry out these tasks it is important to have at our
disposal extensive knowledge on historical floods and to find an efficient
way to manage this geographical data. In this paper we present a complete
flood database spanning the 20th century for the whole of Catalonia (NE
Spain), which includes documentary information (affected areas and damage)
and instrumental information (meteorological and hydrological records). This
geodatabase, named Inungama, has been implemented on a GIS (Geographical
Information System) in order to display all the information within a given
geographical scenario, as well as to carry out an analysis thereof using
queries, overlays and calculus. Following a description of the type and
amount of information stored in the database and the structure of the
information system, the first applications of Inungama are presented. The
geographical distribution of floods shows the localities which are more
likely to be flooded, confirming that the most affected municipalities are
the most densely populated ones in coastal areas. Regarding the existence of
an increase in flooding occurrence, a temporal analysis has been carried
out, showing a steady increase over the last 30 years. |
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