The Relevance of Mediterranean Neutrino Telescope Sites on Earth-skimming ντ detection

A study of the UHE ντ detection performances of a km3 Neutrino Telescope sitting at the three proposed sites for ANTARES, NEMO and NESTOR in the Mediterranean sea is here performed. In particular, it is analyzed the effect of the underwater surface profile on the total amount of yearly expected τ crossing the fiducial volume in the limit of full detection efficiency and energy resolution.