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DatoValore
TitleMODELING THE IMPACT OF CLIMATE CHANGE IN A MEDITERRANEAN CATCHMENT (MERGUELLIL TUNISIA)
AbstractDuring the last decades, the Mediterranean region is suffering more and more from droughts. It has been recognized as one of the most vulnerable regions in the world to climate change. Understanding the impact of climate change on various components of water cycle is an important challenge for long-term sustainable management of water resources. In this paper, the integrated hydrological model "Soil and Water Assessment Tool" (SWAT 2005) was used to study the impact of future climate on water resources of a Mediterranean catchment. Future climate scenarios for periods of 2010-2039 and 2070-2099 were generated from the Canadian Global Coupled model (CGCM 3.1) for scenarios A1B, B1, and A2. These CGCMs data were then statistically downscaled to generate future possible local meteorological data of precipitation and temperature in the study area. SWAT model was run first under current climate (1986-2005) and then for the future climate period to analyze the potential impact of climate change on flow, evapotranspiration, and soil moisture across this catchment. Finally, Richter et al.'s Indicators of Hydrologic Alteration (IHA) were used to analyze the flow regime alterations under changing climate. The main results indicate that this catchment would suffer a combination of increased temperature and reduced rainfall that will reduce water resources in this area. Consequently, summer droughts would be intensified. Different spatial responses to climate change were observed in the catchment for near future simulations. Higher altitude regions would experience an increase of the total water yield, while a reduction is foreseen for lower parts. For far future, a noticeable decrease would affect water resources in all part of the catchment.
SourceFresenius environmental bulletin 19(10a), pp. 2334–2347
KeywordsClimate changeSWATCGCMIHAHydrological Modeling
JournalFresenius environmental bulletin
EditorParlar Scientific Publications, Freising, Germania
Year2010
TypeArticolo in rivista
AuthorsABOUABDILLAH A., OUESLATI O., DE GIROLAMO A.M., LO PORTO A.
Text42397 2010 ISI Web of Science WOS 000285178700007 Climate change SWAT CGCM IHA Hydrological Modeling MODELING THE IMPACT OF CLIMATE CHANGE IN A MEDITERRANEAN CATCHMENT MERGUELLIL TUNISIA ABOUABDILLAH A., OUESLATI O., DE GIROLAMO A.M., LO PORTO A. Water Research Institute of National Research Council IRSA U.O.S. Bari During the last decades, the Mediterranean region is suffering more and more from droughts. It has been recognized as one of the most vulnerable regions in the world to climate change. Understanding the impact of climate change on various components of water cycle is an important challenge for long term sustainable management of water resources. In this paper, the integrated hydrological model Soil and Water Assessment Tool SWAT 2005 was used to study the impact of future climate on water resources of a Mediterranean catchment. Future climate scenarios for periods of 2010 2039 and 2070 2099 were generated from the Canadian Global Coupled model CGCM 3.1 for scenarios A1B, B1, and A2. These CGCMs data were then statistically downscaled to generate future possible local meteorological data of precipitation and temperature in the study area. SWAT model was run first under current climate 1986 2005 and then for the future climate period to analyze the potential impact of climate change on flow, evapotranspiration, and soil moisture across this catchment. Finally, Richter et al. s Indicators of Hydrologic Alteration IHA were used to analyze the flow regime alterations under changing climate. The main results indicate that this catchment would suffer a combination of increased temperature and reduced rainfall that will reduce water resources in this area. Consequently, summer droughts would be intensified. Different spatial responses to climate change were observed in the catchment for near future simulations. Higher altitude regions would experience an increase of the total water yield, while a reduction is foreseen for lower parts. For far future, a noticeable decrease would affect water resources in all part of the catchment. 19 10a Articolo pubblicato MODELING THE IMPACT OF CLIMATE CHANGE IN A MEDITERRANEAN CATCHMENT MERGUELLIL, TUNISIA pdf articolo pubblicato MODELING THE IMPACT OF CLIMATE CHANGE IN A MEDITERRANEAN CATCHMENT MERGUELLIL, TUNISIA F_2009_498_MESAEP_Originalpaper_pp_2334_2347.pdf Articolo in rivista Parlar Scientific Publications 1018 4619 Fresenius environmental bulletin Fresenius environmental bulletin Fresenius environ. bull. Fresenius environmental bulletin. FEB Freising. Print Fresenius environmental bulletin Print antonio.loporto LO PORTO ANTONIO annamaria.degirolamo DE GIROLAMO ANNA MARIA TA.P04.005.006 Gestione a scala di bacino delle risorse idriche e sostenibilita dell uso irriguo in agricoltura