Chart Datum definition

Chart Datum means 3.9 m below ordinance datum (Newlyn), corresponding with a depth of 7.6m of the outer sill of the Port of Immingham;
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Chart Datum means the Chart Datum to which levels and soundings have been reduced for the purpose of drawings in contract is the chart datum which is 2.36 m below G. T. S. Bench mark situated beside the path leading to the main entrance of the Holy Trinity Church of England at Tuticorin. The
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Chart Datum means the Lowest Astronomical Tide in all ports of the Republic of South Africa and Namibia as determined from time to time by the Hydrographer of the South African Navy;
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Examples of Chart Datum in a sentence

  • The Licensee must ensure that navigable depth is not altered by more than 5% referenced to Chart Datum unless otherwise agreed, in writing, with the Licensing Authority in consultation with the MCA and NLB.

  • The depths shown on Sea Charts (and thereby the depths extracted by the extraction program) are, in areas with considerable tidal variation relative to a "Chart Datum", loosely defined as a level below which the tide rarely falls.

  • The so defined "Chart Datum" is not horizontal, and the difference between "Chart Datum" and MSL varies from location to location.

  • The Contractor shall set up a manual reading tide gauge and an automatic recording tide gauge at a location to be agreed by the Engineer, accurately levelled to zero at local Chart Datum.

  • The datum to which all levels are referred throughout these Specifications and which shall be referred in the as-built plans, drawings, soil profiles and reports prepared in the performance of this Contract shall be the Admiralty Chart Datum and shall be related to the Local Land Survey Datum or standard bench mark(s) located at or near the site.

  • Chart Datum used in Victoria is at or near the Lowest Astronomical Tide (LAT).

  • The automatic recording tide gauge shall be calibrated and zeroes to Local Chart Datum.

  • The navigable depth must not be altered by more than 5% of stated Chart Datum unless otherwise agreed, in writing, with the Licensing Authority in consultation with the MCA and NLB.

  • The main constraint in Dublin Port is the maintained channel depth of - 7.8m Chart Datum, and the available depth varies between 2 extremes related to the highest and lowest Astronomical Tides.

  • The tidal heights with respect to port Chart Datum, with local Mean Sea level as + 3.884 is presented in the table below: Highest High Water+ 7.59 mMean High Water Spring+ 6.66 mMean High Water+ 6.185 mMean High Water Neaps+ 5.71 mLocal Mean sea Level+3.88 mMean Low Water Neaps+ 1.80 mMean Low Water+ 1.30 mMean Low Water Spring+0.80 mLowest Low Water WavesKandla Creek is protected from wave disturbances by a number of shoals at its outfall into the gulf.


More Definitions of Chart Datum

Chart Datum means the height referencing datum as determined by the Hydrographer of the South African Navy;
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Chart Datum means the tidal level to which depths on a nautical chart are referred to constitute a vertical datum;
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Chart Datum means the lowest level due to astronomical effects and is exclusive of meteorological effects for instance it is the level below which the ocean tide never falls, allowing for the movements of the sun, moon and earth;
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Related to Chart Datum

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