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Part of an early "new style" Admiralty chart, of Risavika in Norway, published in 1970. Depth in metres (and tenths of metres for depths less than 20m). Metrication of Admiralty charts began in 1967, and it was decided to synchronise this with the introduction of a new style of chart, with increased use of colour, which continues in use today.
Use of colour in British Admiralty charts. Depths which have been measured are indicated by the numbers shown on the chart. Depths on charts published in most parts of the world use metres. Older charts, as well as those published by the United States government, may use feet or fathoms. Depth contour lines show the shape of underwater relief ...
English: Nautical chart of the Bay of Islands, Newfoundland, at a scale of 1:74,400. Surveyed by Staff Commander W.F. Maxwell assisted by the officers of the Newfoundland Survey 1880-1. Surveyed by Staff Commander W.F. Maxwell assisted by the officers of the Newfoundland Survey 1880-1.
A TSS is typically created in locations with large numbers of ship movements and vessels travelling in different directions and where there might otherwise be a high risk of collisions. Details of traffic separation schemes and similar routing-systems can be found on Admiralty charts. [1]
English: Nautical chart of Hay Island to Bow Reef. North of Morris Island surveyed by Lieut. Commander W.V.S. Howard and the officers of H.M. Surveying Ship Dart, 1896-1897; South of Morris Island surveyed by Lieut. Commander J.F. Parry, H.M. Surveying Ship Dart, 1898.
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