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    Transhorizon VHF Telemetry from Ocean Moorings

    Source: Journal of Atmospheric and Oceanic Technology:;1984:;volume( 001 ):;issue: 002::page 176
    Author:
    Brooks, David A.
    DOI: 10.1175/1520-0426(1984)001<0176:TVTFOM>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: During long deployment periods, it is desirable to communicate remotely with moored or drifting instruments. In addition to providing access to the data set as it is collected, a telemetry capability provides insurance against undetected instrument failure and the associated risk of jeopardized scientific objectives. As part of an ongoing study in the Gulf of Maine, an experimental VHF transhorizon telemetry system was recently deployed with a current meter mooring. The refractive properties of the marine boundary layer made it possible to transmit data with about 70% reliability over a 100 km distance, or about ten times the optical-horizon distance for the antenna heights used. During weather anomalies, large signal-strength enhancements occurred, and these could easily be exploited to increase the data-transfer reliability.
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      Transhorizon VHF Telemetry from Ocean Moorings

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4219510
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    contributor authorBrooks, David A.
    date accessioned2017-06-09T16:57:18Z
    date available2017-06-09T16:57:18Z
    date copyright1984/06/01
    date issued1984
    identifier issn0739-0572
    identifier otherams-77.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4219510
    description abstractDuring long deployment periods, it is desirable to communicate remotely with moored or drifting instruments. In addition to providing access to the data set as it is collected, a telemetry capability provides insurance against undetected instrument failure and the associated risk of jeopardized scientific objectives. As part of an ongoing study in the Gulf of Maine, an experimental VHF transhorizon telemetry system was recently deployed with a current meter mooring. The refractive properties of the marine boundary layer made it possible to transmit data with about 70% reliability over a 100 km distance, or about ten times the optical-horizon distance for the antenna heights used. During weather anomalies, large signal-strength enhancements occurred, and these could easily be exploited to increase the data-transfer reliability.
    publisherAmerican Meteorological Society
    titleTranshorizon VHF Telemetry from Ocean Moorings
    typeJournal Paper
    journal volume1
    journal issue2
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(1984)001<0176:TVTFOM>2.0.CO;2
    journal fristpage176
    journal lastpage189
    treeJournal of Atmospheric and Oceanic Technology:;1984:;volume( 001 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian