Surface-wave data acquisition and dissemination by VHF packet radio and computer networking
Briscoe, Melbourne G.
Frye, Daniel E.
Hunt, Mary M.
Montgomery, Ellyn T.
Payne, Richard E.
MetadataShow full item record
Waverider buoy data are normally transmitted on a 27 MHz analog radio link to a shore station a few miles away, where the buoy data are plotted on a paper strip-chart recorder or logged digitally for later computer processing. Instead, we have constructed a relay station on Martha's Vineyard island that retransmits the received Waverider data over a digital, 148 MHz packet-radio link to a personal computer in our laboratory on Cape Cod, where the data are edited, processed, spectrally analyzed, and then sent over an Ethernet line to our Institution mainframe computer for archiving. Telephone modem access of a special wave-data file on the mainframe permits unattended data dissemination to the public. The report describes the entire system, including Waverider buoy mooring hardware, computer programs, and equipment. The purpose of the project was to learn what difficulties are involved in the automated acquisition and dissemination of telemetered oceanographic data, and to gain experience with packet radio techniques. Although secondary to these purposes, the long-term surface-wave monitoring off the southwest shore of Martha's Vineyard has its own scientific, engineering, and environmental benefits.
Showing items related by title, author, creator and subject.
A preliminary investigation into the ecology and behavior of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile Bocconcelli, Alessandro; Hickmott, Leigh S.; Landea Briones, Rafaela; Howes, Gloria; Sayigh, Laela S. (Woods Hole Oceanographic Institution, 2014-09)A joint effort between WHOI and the Melimoyu Ecosystem Research Institute (MERI) sought to gain a better understanding of a population of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile. A cruise in ...
Geiger, Sam R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-09)A finite difference computer model is developed to simulate the exposure statistics of a radio frequency buoyant antenna as it is towed in a three-dimensional random seaway. The model allows the user to prescribe antenna ...
Array data acquisition with wireless LAN telemetry as applied to shallow water tomography in the Barents Sea von der Heydt, Keith; Kemp, John N.; Lynch, James F.; Miller, J.; Chiu, Ching-Sang (Woods Hole Oceanographic Institution, 1992-12)This report describes the application of a new technique of digital radio telemetry, based on a recently available wireless Local Area Network Ethernet adapter, to the need for realtime transmission of data from a vertical ...