Method of Measuring Deep Sea Tides

Abstract

IN a letter to NATURE of April 4 under this heading Prof. R. W. Wood suggests the use of a subsurface buoy as an “artificial island” for supporting recording tidal gauges, in order to study the tidal rise and fall in the open sea. Many readers of NATURE are, of course, aware that a similar contrivance was worked out by Swedish oceanographers more than fifteen years ago, and has been repeatedly used with very satisfactory results, in order to take continuous records of the subsurface currents from points in the open sea off the coasts of Sweden.