The S-1 Chronicle: A Tribute to Bernhard Haurwitz

Abstract

The diurnal tide in surface pressure was explained theoretically in 1967, with the help of a framework that had been built up in the preceding six years. A significant contribution to this framework was made by Bernhard Haurwitz, who in 1965 published spherical-harmonic and Hough-function analyses of the diurnal surface-pressure oscillation. The lecture also examines origins of knowledge about negative equivalent depths.