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| Titel |
Drought occurrence analysis in Tunisia |
| VerfasserIn |
Salima Touati, Taoufik Hermassi, Hamadi Habaieb |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250139973
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| Publikation (Nr.) |
 EGU/EGU2017-3297.pdf |
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| Zusammenfassung |
| Droughtis a terrible scourge for the Tunisianeconomybasedmainly on rainfed agricultural production. The analysis of the recurrence and the persistence of thisphenomenon by scientificmethodsseeks to establish a probabilityestimatewhichcouldcontribute to the planning of strategies for the mobilization and management of water resources.
This paperaims on the analysis of the occurrence and the persistence of the meteorologicaldrought in Tunisia by Markov chain. It isbased on monthly data for 115 yearsfrom 24 rainfall stations distributed over the Tunisianterritory.
The studyshowedthatdroughtis a frequentphenomenonrecurringeverytwoyears or eventhreeyears or more. The probability of havingtwoconsecutive dry yearsisgreater in the western regions (the Northwest, the Center-West, and the Southwest). Theseregions are known for their agricultural production and theireconomic contribution.
The application of the standardizedprecipitation index showedthat the Tunisianclimateisoftenfrequented by mild to moderateweatherdroughts. Theseresultscontribute to the establishment of astrategy to combat drought. |
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