. Compendium of meteorology. Meteorology. 664 LOCAL CIRCULATIONS phenomenon of summer. Nevertheless, mountain and valley winds may also occur on cloudy days and in winter when they become manifest mostly in a modifica- tion of the general wind. The vector diagram of the winds in the Inn river valley near Innsbruck in Fig_ 8 shows a good example of mountain and valley winds. 1512. 0 12 3 4 5 M SEC-I Fig. 8.—Vector diagram of the mountain and valley winds in the Inn valley (Innsbruck) on June 19,1929, 100 m above the valley bottom. The dash-dotted lines indicate the axes of the Inn valley; upstr
. Compendium of meteorology. Meteorology. 664 LOCAL CIRCULATIONS phenomenon of summer. Nevertheless, mountain and valley winds may also occur on cloudy days and in winter when they become manifest mostly in a modifica- tion of the general wind. The vector diagram of the winds in the Inn river valley near Innsbruck in Fig_ 8 shows a good example of mountain and valley winds. 1512. 0 12 3 4 5 M SEC-I Fig. 8.—Vector diagram of the mountain and valley winds in the Inn valley (Innsbruck) on June 19,1929, 100 m above the valley bottom. The dash-dotted lines indicate the axes of the Inn valley; upstream is to the left. Numbers indicate local mean time. (After Ekhart [19].) This diagram of the wind conditions in the course of a clear day, June 19, 1929, shows that the maximum of the valley wind with speeds of 5-6 m see" occurs shortly after 1500. The maximum of the mountain wind with speeds of 3-4 m sec"^ in the opposite direction occurs at around 0700. In general, the winds blow in the longitudinal direction of the valley's axis. As an example of the height and intensity of the mountain and valley winds at Innsbruck, an isopleth diagram by Ekhart is reproduced in Fig. 9. The wind. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Meteorological Society. Committee on the Compendium of Meteorology; Malone, Thomas F. Boston : American Meteorological Society
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