The structure of the atmosphere in clear weather; a study of soundings with pilot balloons (1912)
Cave, C. J. P. (Charles John Philip), b. 1871 · Cambridge : University Press · leaf 52
FIG. 33. Feb. 20th, 1909, 6 p.m. a. Surface isobars, b. Computed isobars at 3 kilometresshowing relative differences of pressure from that over Portland Bill. Gradient Surface - -S-.
Winds · Atmosphere, Upper · Balloons
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.