Mooring (oceanography)
A mooring in
Construction principle
The mooring is held up in the water column with various forms of buoyancy such as
Components
Top buoy
Surface buoys
Moorings often include surface buoys that transmit real time data back to shore. The traditional approach is to use the
Submerged buoys
In deeper waters, areas covered by
The buoyancy of the floats, i.e. of the top buoy plus additional packs of glass bulbs of foam, is sufficient to carry the instruments back to the surface. In order to avoid entangled ropes, it has been practical to place additional floats directly above each instrument.
Instrument housing
Prawlers
Prawlers (profiling crawlers) are sensor bodies which climb and descend the cable, to observe multiple depths. The energy to move is "free," harnessed by ratcheting upward via wave energy, then returning downward via gravity.[2]
Depth correction
Similar to a kite in the wind, the mooring line will follow a so-called (half-)catenary. The influence of
See also
- Benthic lander, a mooring which does not have any mooring line
References
- ^ Toole, John M.; McCartney, Michael S.; Hogg, Nelson; Weller, Robert A. (2000). "Outposts in the Ocean". Oceanus Magazine. 42 (1). Woods Hole Oceanographic Institution.
- ^ "Prawlers, Engineers, and the Future of Oceanography at Sea. Retrieved 27 Jan 2013". 5 October 2012.
- ^ Dewey, Richard K. "Mooring Design & Dynamics - A Matlab Package for Designing and Testing Oceanographic Moorings And Towed Bodies". Centre for Earth and Ocean Research, University of Victoria. Archived from the original on 2013-10-12. Retrieved 2012-09-25.
- .