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An ensemble of models for identifying climate change scenarios in the Gulf of Gabes, Tunisia

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Abstract

Climate change is likely to increase the pressure on the environment and on human systems that are requiring new assessment tools aimed at supporting decision-makers and stakeholders towards a more sustainable and effective management of the coastal environment and its resources. This research appraises an ensemble of models that integrates complex interactions of climate and anthropogenic impacts on vulnerable Mediterranean coastal areas with application to the Gulf of Gabes, Tunisia. Starting from Global and Regional Circulation Models, the models’ ensemble includes simulations of marine and atmospheric dynamics and biogeochemical processes in coastal waters under expected anthropogenic forcings, with a spatial domain ranging from subnational to local. In the case study area, the simulations showed that atmospheric temperature increase is likely to be around 4 °C in the summer months of 2100, relative to 1961–1990. In order to obtain the most reliable estimate of sea-level rate variations, satellite altimetry data have been processed over a period of 15 years (1993–2007) showing that sea-level changes on the Tunisian shelf were of the order of 2 mm/year. This value was considered as a reference for the sea-level change scenarios. As far as the water quality is concerned, the areas most impacted by pollution are located near major towns and human infrastructures, such as harbours. The set of results obtained by the proposed models’ ensemble may be suitable for supporting a scientific dialogue with stakeholders and for the implementation of exposure scenarios supporting a regional risk assessment approach to the entire Gulf of Gabes area.

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Acknowledgments

The activities described in this paper were developed in the frame of the CANTICO project, funded under the CIRCLE-MED programme.

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Authors and Affiliations

  1. Centro Euro Mediterraneo sui Cambiamenti Climatici, via Augusto Imperatore 16, Lecce, 73100, Italy

    Lara Lamon, Jonathan Rizzi, Antonio Bonaduce & Antonio Marcomini

  2. Department of Environmental Sciences, Informatics and Statistics, University Ca’ Foscari Venice, Dorsoduro 2137, 30123, Venice, Italy

    Lara Lamon, Jonathan Rizzi & Antonio Marcomini

  3. Météo-France/Centre National de RecherchesMétéorologiques (CNRM), 42 avenue Coriolis, 31057, Toulouse, France

    Clotilde Dubois & Samuel Somot

  4. Ecology and Computational Hydrodynamics in Oceanography (ECHO), National Institute of Oceanography and Experimental Geophysics (OGS), Borgo Grotta Gigante, Brisciki 42/c, Sgonico-Zgonik, TS, 34010, Italy

    Paolo Lazzari, Donata Melaku Canu & Cosimo Solidoro

  5. SAROST, SAROST Agency, Immeuble Saadi Tour EF, El Menzah IV, Tunis, 1082, Tunisia

    Leila Ghenim & Slim Gana

  6. Laboratoire de Météorologie Dynamique, CNRS, UPMC, Casier 99, 4 place Jussieu, 75005, Paris, France

    Laurent Li

  7. Department of Physics and Astronomy, University of Bologna, V. B. Pichat 6/2, Bologna, 40127, Italy

    Nadia Pinardi

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  1. Lara Lamon
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  2. Jonathan Rizzi
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  3. Antonio Bonaduce
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  8. Samuel Somot
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  9. Laurent Li
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  10. Donata Melaku Canu
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  13. Antonio Marcomini
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Corresponding author

Correspondence to Antonio Marcomini.

Electronic supplementary material

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10113_2013_430_MOESM1_ESM.pdf

Supplementary material Figures illustrating the differences in physical and chemical variables considered in this paper and a figure representing the precipitation values for comparison between the present and the A1B climate scenarios is reported in the electronic Supplementary Material (SM). This material is available free of charge via the Internet at http://link.springer.com/journal/ (PDF 6696 kb)

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Lamon, L., Rizzi, J., Bonaduce, A. et al. An ensemble of models for identifying climate change scenarios in the Gulf of Gabes, Tunisia. Reg Environ Change 14 (Suppl 1), 31–40 (2014). https://doi.org/10.1007/s10113-013-0430-x

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