Atlantic Long-Term Oceanographic Mooring (ALTOMOOR)
Frye, Daniel E.
Eastwood, Robert L.
Kemp, John N.
McPhee, Neil M.
Liberatore, Stephen P.
Tarbell, Susan A.
MetadataShow full item record
The Atlantic Long-Term Oceanogrphic Mooring (ALTOMOOR) has been maintained offshore Bermuda since 1993 as a testbed for the evaluation of new data telemetry technologies and new oceanographic instrumentation. It is currently a joint project between the Woods Hole Oceanographic Institution and the University of Southern California This report documents the WHOI contributions which have focused on the development of new data telemetry methods and new mooring technology. Details of the instrumentation evaluations will be published separately. A new inductively-coupled telemetry technology for ocean moorings has been developed and tested on ALTOMOOR. The inductive link uses standard, plastic-jacketed mooring wire as the transmission path for data generated at the individual instruments installed on the mooring. The signals are inductively linked to the mooring wire via toroids clamped around the wire, thus avoiding the need for multiconductor electromechanical cables terminated at each instrument. Seawater provides the electrical return path. The inductive modems send and receive data at 1200b/s. A controller in the surface buoy collects data from each of the subsurface instruments and forwards the data to shore by traditional satellite telemetry (Argos) and by short range radio using a nearby ship as a store and forward node. The buoy-to-ship link operates over about 2 km at 10kBytes/sec. When the ship docks, data are offloaded automatically to a computer on shore which can be accessed via the Internet.
Showing items related by title, author, creator and subject.
Webster, Ferris; Fofonoff, Nicholas P. (Woods Hole Oceanographic Institution, 1966-11)Summaries of current measurements made with Richardson current meters at a group of moored stations near Bermuda, and at a single station south of Bermuda are presented. Averaged quantities are presented in the form of ...
Goud, Margaret R.; Aubrey, David G. (Woods Hole Oceanographic Institution, 1983-05)The structures along a 12 km section of the shoreline of Cape Cod, Mass., were evaluated for condition and effectiveness at protecting the coast. Structures in the area include groins, jetties, revetments, and seawalls; ...
Brownlee, Emily F. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2017-06)Protists play important roles in grazing and nutrient recycling, but quantifying these roles has been hindered by difficulties in collecting, culturing, and observing these often-delicate cells. During long-term deployments ...