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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
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81-345 Gdynia, POLAND
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The Concept of Time in Navigation
1 Gdynia Maritime University, Gdynia, Poland
ABSTRACT: The article discusses the concept of time in navigation, especially in marine navigation, as well as selected time measures, among others: Greenwich Mean Time (GMT), Universal Time Coordinated (UTC), International Atomic Time TAI (Temps Atomique International), GPST (Global Positioning System Time) eLoran Time and interrelation between these measures. Understanding how time is involved in navigation, and using it, is one of the navigator's most important duties. Nowadays we have satellite navigation to help us know where we are. These satellites contain several very precise and accurate clocks, because time and location are completely and totally inter-related in satellite navigation. There is growing interest internationally concerning the vulnerability Global Navigation Satellite Systems (GNSS) to natural and man-made interference, plus the jamming and spoofing of their transmissions. These vulnerabilities have led to a demand for sources of resilient PNT (Positioning, Navigation and Timing) [16], including a robust means of distributing precise time nationally and internationally.
REFERENCES
Astronomical Almanac On-Line 2017. The United States Naval Observatory (USNO). Time Scales and Coordinate Systems - http://asa.usno.navy.mil.
Carroll S.: From Eternity to Here: The Quest for the Ultimate Theory of Time. Dutton, New York 2009.
Curry, C.: Delivering a National Timescale Using eLoran. Chronos Technology Ltd., Issue 1.0, 07 June 2014.
Curry, C., Czaplewski, K., Schue, C., Weintrit, A.: The Use of eLoran System for Transmission of the National Time Signal. In: A. Weintrit (ed.): Marine Navigation. Proceedings of the 12th International Conference on Marine Navigation and Safety of Sea Transportation TransNav 2017, London, CRC Press/Balkema Book, Taylor & Francis Group, London, p. 37 - 47, 2017.
Hohenkerk, C.Y., Yallop, B.D., Smith, C.A., Sinclair, A.T.: Celestial Reference Systems, Chapter 3, p. 116, 1992. Explanatory Supplement to the Astronomical Almanac, Seidelmann, P.K., (ed.), U. S. Naval Observatory, University Science Books, Mill Valley, CA., 1996.
http://www.leapsecond.com/java/gpsclock.htm - TAI, UTC, GPS clocks.
Lippincott, K.: The Story of Time. London Merrell Holberton with association with National Maritime Museum, London 1999.
Morrison, L.V., Stephenson, F.R.: Historical values of the Earth's clock error ΔT and the calculation of eclipses. Journal for the History of Astronomy, Vol. 35, Part 3, No. 120, p. 327 – 336, 2004.
Oxford Dictionaries: Time. Oxford University Press. 2017. Retrieved 17 March 2017.
Ridderbos K. (ed.): Time. The Darwin College Lectures, Cambridge University Press, 2002.
Sexton, J.: Understanding Time for Navigation. SailNet. http://www.sailnet.com/forums/seamanship-articles/19270-understanding-time-navigation.html. Retrieved 17 March 2017.
Specht, C., Weintrit, A., Specht, M.: A history of maritime radio-navigation positioning systems used in Poland. Journal of Navigation, Vol. 69, Issue 03, p. 468 -480, 2016.
UKHO. Admiralty List of Radio Signals, Vol. 2. United Kingdom Hydrographic Office, Taunton 2017.
Weintrit, A.: The Time in the Navigation. Measures of Time: GMT - UTC - TAI - GPST (in Polish). Przegląd Telekomunikacyjny, No. 7, 2011.
Weintrit A.: Jednostki miar wczoraj i dziś. Przegląd systemów miar i wag na lądzie i morzu (Units of measure yesterday and today. Overview of systems of weights and measures on land and sea – in Polish). Wydawnictwo Akademii Morskiej, Gdynia 2011.
Weintrit, A., Zalewski, P.: Guidelines for Multi-System Shipborne Radionavigation Receivers Dealing with the Harmonized Provision of PNT Data. In: Mikulski J. (ed.) Transport System Telematics TST 2017, Communications in Computer and Information Science. Springer, Heidelberg 2017.
Whitrow, G.J.: What is Time? Thames & Hudson Ltd, London, 1972.
Citation note:
Weintrit A.: The Concept of Time in Navigation. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 11, No. 2, doi:10.12716/1001.11.02.01, pp. 209-219, 2017
Authors in other databases:

Other publications of authors:

A. Weintrit, R. Wawruch, C. Specht, L. Gucma, Z. Pietrzykowski
L. Murawski, S. Opoka, K. Majewska, M. Mieloszyk, W. Ostachowicz, A. Weintrit

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