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.
Suggested CitationBriscoe, M. G., Denton, E., Frye, D. E., Hunt, M. M., Montgomery, E. T., & Payne, R. E. (1988). Surface-wave data acquisition and dissemination by VHF packet radio and computer networking. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/7484
Showing items related by title, author, creator and subject.
Duda, Timothy F.; Preisig, James C. (IEEE, 1999-01)Propagation of 400-Hz sound through continental-shelf internal solitary wave packets is shown by numerical simulation to be strongly influenced by coupling of normal modes. Coupling in a packet is controlled by the mode ...
Duda, Timothy F. (IEEE, 2004-01)A computational case study of coupled-mode 400-Hz acoustic propagation over the distance 27 km on the continental shelf is presented. The mode coupling reported here is caused by lateral gradients of sound-speed within ...
Temporal and cross-range coherence of sound traveling through shallow-water nonlinear internal wave packets Duda, Timothy F. (Acoustical Society of America, 2006-06)Expressions governing coherence scales of sound passing through a moving packet of nonlinear internal waves in a continental shelf environment are presented. The expressions describe the temporal coherence scale at a point, ...