Figure 17. Montage of aspects of the earth and its atmosphere (with data from Crowley and North, 1991). Obliquity and major atmosphere patterns (from Rumney, 1968, with permission of MacMillan Company), global image showing atmosphere patterns in Western Hemisphere and parts of Pacific and Atlantic oceans, pathways for mobile polar highs (MPH) and resulting trade wind circulation in the tropics (based on Leroux, 1993) (from Bryant, 1997, with permission of Cambridge University Press), and meridional cross-section of the atmospheric circulation for the Northern Hemisphere in winter (from Barry and Chorley, 1968, with permision of Thomson Publishing Services).