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Master: Biophysical vulnerability of Coastal areas in Benin

The coastal zones are vulnerable to the climatic changes effects which affect the globe since decades. This topic aims to better apprehend the physical aspects of the vulnerability of districts of, Grand-Popo and Ouidah, coastal zones exposed to climatic changes and their effects.

The data used concern the climatologic statistics, the planimetric data and informations of the field surveys. The climatic mutation have been put in evidence by the using of rainfall indication, of the linea regression and the breaking detection of stationnarity by Pettit’s test (1979) and by Heghinian (1977). The cartogrphic approach which combines the treatment of images and the tracking method with rainfall informations have been also used.

It springs from the performed works that rains are irregular follow by deficiency years and seasonal mutations with stationnarity rupture of rainfall series in 1970 at Ouidah and in 1975 at Grand-Popo. There is a rise tendency said of minimal temperatures with “moderated” and “strong moderated” winds as far as the temperature is concerned on the scale of Beaufort (1802). The district of, Grand-Popo and Ouidah are vulnerable and exposed to flood. The data analysis of the field by the cartographic treatment allow to caracterise the sea progress evaluates from 28-33m at Djègbadji and from 32-48m at Djondji.
 

This Master Thesis has been completed by Audrey Agonvi at the University of Abomey-Calavi with the financial support of ACED.

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