Description

Immediate dispatch from Somerset. Nice book in great condition. Pages in excellent condition. No notes or highlighting. See images. Fantastic book.

About the book >.>.> This atlas contains two sets of 13 charts showing tidal streams at hourly intervals commencing 6 hours before HW Brest and ending 6 hours after HW Brest. The times of HW Brest and other details of the prediction for this port are given in NP 202 Admiralty Tide Tables Vol 2 which is published annually. NP 202 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 strength of the tidal stream. Thus indicates a weak stream and indicates a strong stream. The figures against the arrows give the mean neap and spring rates in tenths of a knot thus: 1934 indicates a mean neap rate of 1-9 knots and a mean spring rate of 3-4 knots. The comma indicates the approximate position at which the observations were obtained. (LL)