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Nautical Publications
This atlas contains 13 charts from Falmouth to Teignmouth extending southwards to mid channel, show wing tidal streams at hourly intervals from 6 hours before to 6 hours after HW Devonport.
The times for HWDevonport and other details of the prediction for this port are given in NP201, Admiralty Tide Tables Vol 1, which is published annually. NP201 also gives tidal predictions for a number of ports and tidal stations in the area covered by this atlas.
On the tidal stream charts the directions are shown by arrows which are graded in weight and, where possible, in length to indicate the approximate rate of the tidal stream. Thus ㅡ> indicates a weak stream and ㅡ> indicates a strong stream.
The figures against the arrows give the mean neap and spring rates in tenths of a knot, thus : 18,34 indicates a mean neap reat of 1.8 knots and a mean spring rate of 3.4 knots. The comma indicates the approximate position at which the observations were obtained.
The times for HWDevonport and other details of the prediction for this port are given in NP201, Admiralty Tide Tables Vol 1, which is published annually. NP201 also gives tidal predictions for a number of ports and tidal stations in the area covered by this atlas.
On the tidal stream charts the directions are shown by arrows which are graded in weight and, where possible, in length to indicate the approximate rate of the tidal stream. Thus ㅡ> indicates a weak stream and ㅡ> indicates a strong stream.
The figures against the arrows give the mean neap and spring rates in tenths of a knot, thus : 18,34 indicates a mean neap reat of 1.8 knots and a mean spring rate of 3.4 knots. The comma indicates the approximate position at which the observations were obtained.
