An on-going challenge for decision makers is the interpretation of temporal trends from monitoring data given that environmental processes often generate complex data that are multivariate and potentially nonlinear. Generalized additive models (GAMs) is a wellsuited modelling framework for uncovering such trends and unifying datasets. This approach allows flexible specification of regression sp...

l Biofoulingmitigationmeasures for optical ports can extend the duration of oceanographic deployments, but there have been few quantitative studies of field performance. Results are presented from a 4-month field test of a stereo-optical camera system intended for long-term environmental monitoring of tidal turbines. A combination of passive (copper rings and ClearSignal antifouling coating) an...

This paper reports the development and results of at-sea eld testing of a new control system for remotely operated underwater vehicles. The control system provides model-based closed loop trajectory tracking control in addition to conventional PID control, dynamic power management, and a high level of power control and monitoring. The control system is presently deployed on three operational US...

The long-term goals of this project are to create and demonstrate a reactive ocean survey system, capable of long-term unattended deployments in remote environments. We refer to such a system as an Autonomous Ocean Sampling Network (AOSN). The work described below is the product of a collaboration of research groups at the Massachusetts Institute of Technology, Woods Hole Oceanographic Institut...

Long term video electro-encephalographic (EEG) monitoring (LTM) is defined as the continuous and synchronized recording of EEG and multimedia to analyze brain abnormalities. A conventional LTM system continuously records EEG in the frequency range of 0.5-70Hz. The data synchronization, the high-volume data management, the system reliability as well as noise reduction remain significant challeng...

The principal long term goal of this project is to develop a practical, portable, nested, tidal data assimilation scheme which makes use of all available data (e.g., altimetry data, current moorings, coastal radar) to constrain barotropic and baroclinic tides (especially tidal currents) in coastal areas and shallow seas. A second long term goal is to develop more efficient methods for assimilat...

Underwater Wireless Sensor Network (UWSN) is a new network paradigm that is being proposed to explore, monitor and protect the oceans. Some of the Underwater Sensor Nodes applications include oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation and tactical surveillance applications. The topology and model of communication play cruc...

In this study, temporal and spatial trends of sea surface temperature (SST), wind speed, air temperature, salinity (SSS), sea-level pressure (SLP), SST-based upwelling index are examined compared with data from previous studies. Analyses these parameters performed for five critical locations that best illustrate the characteristic meteorological oceanographic structures Aegean Sea. Upwelling ca...