Figure 1: A diagram showing a view of the Earth, the moon and its orbit the sun, and the lunar and solar tidal bulges during neap tide and spring tide.
2. During which phase(s) of the moon is the solar tidal bulge added to the lunar tidal
bulge, resulting in spring tides?
3. During which phase(s) of the moon is the solar tidal bulge subtracted from the lunar
tidal bulge, resulting in neap tides?
4. Review the introduction to this exercise and determine which kind of tide would be
best for the date of the invasion, spring, or neap, and why
© The National WWII Museum
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The Moon and Tides of D-Day, part 2 of 2