VIEWPOINTSessions 33 Figure 1. Data transmission chain between seafl oor and user on shoreThe functioning parameters of the stations are also monitored, for a proper preparation of the maintenance interventions scheduled at each periodic cruise over the Var Valley.The data transmission results over the two years are presented. ConclusionsThe system presented here off ers the functions of a near real time sea observatory, at a modest cost.In addition to delivering the seafl oor data in near real time, it allows a permanent technical monitoring of the seafl oor equipment and can transmit alerts from the seafl oor.These two years of operation allowed to signifi cantly increase its reliability. References
Cervera et al. (2008) studied this question.