Trace: cost_wg2
 
HIGHLIGTHS:
Article presenting the
COST Action ES0904,
to be published in
International Innovation
~~~
Poster presenting the
COST Action ES0904
~~~


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public/cost_wg2.txt · Last modified: 2012/01/14 14:56 by testor


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WG2: Glider vehicle, sensors, and “gliderports” infrastructures

Investigations on the technical developments possible for the existing platforms (engines, hulls, embedded energy, other hardware and on-board software) as well as fully new gliding vehicles is the first task of this WG. Even if the Action includes the few European early stage projects that are now developing new glider platforms, the Action will be mainly active as available scientific and technical expertise and in assessing the usefulness and implementation of these new developments for the updated gliders or new gliding vehicles as measuring oceanic platforms. Some of these developments could be pointed as recommendations for the members – in particular the main “gliderports” (see below) where the technical skills are available – to conduct specific actions. The second task concerns an accurate survey concerning existing oceanographic sensors applicable for gliders will also be performed. Three groups of sensors will be described:

  • Sensors for physical measurements: pressure, temperature, salinity, horizontal and vertical currents, as the gliders imposes strong constraint on the existing measuring techniques.
  • Bio-optical sensors: this is the ability to retrieve from water Inherent and Apparent Optical properties (IOP and AOP), the concentration of biogeochemical parameters (phytoplankton classes, nutrients, non algal particles such as contaminants) combined with the sampling capabilities of the gliders. For gliders, energy consumption and miniaturization for integration on the vehicle payload are the main challenges that this WG will work out.
  • Other sensors: passive acoustics (such as for whale watch, wind intensity and precipitations from acoustic noise), active or passive acoustics for underwater positioning (we include here active acoustics for data telemetry) and other measuring techniques such particle counters, video for zooplankton and jellies, … for biologically oriented measurements.

The “sensor” activities will focus on recommendations, based on experience gathered by partners of COST Actions and available literature, for use of particular sets of sensors, with their energy consumption and advice on how to achieve best performance on gliders. Results of several ongoing R&D “sensor” projects by the partners will be also investigated. The last objective of this WG is the development of “gliderports”. Main “gliderports” are selected sites with the technical staff and relevant infrastructure needed for complete preparation, maintenance (including sensor calibration) and evolution (in particular for adaptation of new sensors in the scientific payload) of large fleets of gliders can be achieved. This also includes a logistic chain for shipping of the instruments, spares and refurbishment developed in close relation with the companies. These main “gliderports” will also include the computing facilities to host the “ground segment” for piloting as described in WG3. This will be also the place for the “glider’s husband”, the manager of the fleet attached to this gliderport. In order to help operations at sea all over the world, a network of worldwide local supports or “secondary gliderports” where the basic expertise for glider safe deployment/recovery/first maintenance is available, will be developed. It is likely that several partnerships with marine institutions of developing countries will be developed, which implies a training support activity that could be partly supported by the Action.

Proposed deliverables:

  • Compilation of fields of attention and promising new technologies for gliders.
  • Database with the oceanographic sensors applicable to gliders, their characteristics, advantages and limitations.
  • Recommendations for selection of the sensors for each type of measurements. Glider safety procedures handbooks for deployment, recovery for the secondary gliderport.
  • A support system for glider deployment and retrieval actions (wide range of research institutions, ships operators, ships of opportunity) to increase range and effectiveness of glider operations, especially in remote regions.
  • Extended procedure handbooks and tutorials for piloting and exploiting the main gliderport facilities.
 





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