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Noted American cartographer Dr. J. Paul Goode (1862–1932) developed this cylindrical projection (see Figure 4-6). It’s an equal area projection, which means that the land areas are shown in their true sizes relative to each other. In that respect, Goode’s projection is far superior to Mercator’s. Interrupted refers to the map’s outline. Earth is cut into once above the Equator and three times below it. Therefore, the Northern Hemisphere appears as two lobes and the Southern Hemisphere as four lobes.

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FIGURE 4-6: Goode’s Interrupted Homolosine projection.

As a result, the map’s outline is not a rectangle or some other compact form, but instead is interrupted. The word homolosine reflects the fact that Goode’s map is a combination of two other projections: the Mollweide homolographic and the Sinusoidal. (Whether or not you ever learn what that means, I will be happy to give you extra-credit for correct spellings.) Although Goode’s projection appears in various atlases and despite its desirable equal-area attribute, many people are visually uncomfortable with its interrupted format.