Buoyancy-driven underwater vehicles are key tools for obtaining data from the ocean. Underwater gliders and profiling floats, equipped with sensors, provide crucial information on ocean processes climate changes. The Variable Buoyancy System (VBS) is a element of these vehicles, in many cases most complex highest energy-consuming subsystem. Energy consumption directly determines vehicle’s endur...

Underwater computer vision has attracted increasing attention in the research community due to recent advances underwater platforms such as of rovers, gliders, autonomous vehicles (AUVs) , and like, that now make possible acquisition vast amounts imagery video for applications biodiversity assessment, environmental monitoring, search rescue. Despite growing interest, is still a relatively under...

Using underwater gliders we have identified canyon driven upwelling across the Celtic Sea shelf-break, in the vicinity of Whittard Canyon. The presence of this upwelling appears to be tied to the direction and strength of the local slope current, which is in itself highly variable. During typical summer time equatorward flow, an unbalanced pressure gradient force and the resulting disruption of...

The primary use of underwater gliders is to collect oceanographic data within the water column and periodically relay the data at the surface via a satellite connection. In summer 2006, a Seaglider equipped with an acoustic recording system received transmissions from a broadband acoustic source centered at 75 Hz deployed on the bottom off Kauai, Hawaii, while moving away from the source at ran...

In this paper, the data feature of depth-averaged current velocities (DACVs) derived from underwater gliders is analyzed for first time. Two features DACVs have been proposed: one complex ingredients and small samples, other stationarity that occurs as length a DACV sequence increases. With these in mind, set methods combining statistical analysis machine learning are proposed to realize predic...

Abstract A four-dimensional survey by a fleet of seven underwater gliders was used to identify pathways subduction at the Almeria–Oran Front in western Mediterranean Sea. The combined glider covered nearly 9000 km over ground while doing 2500 dives as deep 700 m. had sensors measure temperature, salinity, velocity, chlorophyll fluorescence, and acoustic backscatter. Data from were analyzed thro...

Elementary cellular automaton (ECA) rules 9 and 74, members of Chua’s Bernoulli shift rules and Wolfram’s class 2, can generate a host of gliders and complicated glider collisions by introducing the hybrid mechanism. These gliders and collisions are more plentiful than those generated by ECA rule 110. This paper presents a discussion of the symbolic dynamics of the gliders in hybrid cellular au...