This analysis aims to establish whether the ‘regime shifts’ documented for the north Pacific Ocean are seen in the western and central Pacific Ocean (WCPO) and are relevant to recruitment variation for tropical tunas. Quantitative indicators of oceanographic state are derived by multivariate analysis of physical and biological variables output from an ocean general circulation and biogeochemica...

Oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. For instance Sea Surface Temperature (SST) images, altimetry data and ocean color data can be used for characterizing currents and vortex structures in the ocean. The purpose of this thesis is to derive a relatively complete frame...

Interannual variations in Gulf of Alaska shelf temperature and salinity could significantly influence this ecosystem and hence the recovery and restoration of organisms and services affected by the Exxon Valdez oil spill. This variability is being quantified from time series at hydrographic station GAK 1, near Seward Alaska, and within the Alaska Coastal Current. Data from this station spans a ...

Monitoring temperature of aquatic waters is of great importance, with modelled, satellite and in-situ data providing invaluable insights into long-term environmental change. However, there is often a lack of depth-resolved temperature measurements. Recreational dive computers routinely record temperature and depth, so could provide an alternate and highly novel source of oceanographic informati...

Underwater sensor networks will find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, and tactical surveillance. Underwater acoustic networking is the enabling technology for these applications. In this paper, the problem of data gathering for three-dimensional underwater sensor networks is investigated at the n...

Large scale, long term submarine cabled observatory systems represent a new direction for oceanographic research infrastructure. The power and bandwidth of recent generation technology provides several orders of magnitude more capability than has ever been available to the oceanographic research community. Coupled with a multi-decade observing presence, these new capabilities provide an opportu...

oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. for instance sea surface temperature (sst) images, altimetry data and ocean color data can be used for characterizing currents and vortex structures in the ocean. the purpose of this thesis is to derive a relatively complete frame...

Several compact sampling platforms have recently been developed or are gaining widespread use in Naval operations and oceanographic research. In addition to limited sensor payloads, many of these platforms are autonomous and intended for extended deployments. Sensors compatible with these platforms must therefore be compact, low power, and able to accommodate effective anti-biofouling measures....