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How Mountains Affect Rainfall |
When drawing maps of continents, being realistic is a good idea even when inventing for a fantasy or SF landscape. We're not freed from plausibility unless we're purposely throwing out the laws of physics and nature. Most of us are probably creating reasonably Earth-like terrain, but even if not, there are natural forces at work on most planets. The following tips can not only prevent mistakes but give world builders ideas. Sometimes we're not sure where to put a forest or desert, or why. Maybe we're not sure where to even begin. The answer is mountain ranges and a decision on which hemisphere our continent is on. This will determine prevailing winds and, as a result, vegetation. If you don't understand why, read on. Mountains and Rain Shadows Mountains cause moisture-carrying winds to rise. The clouds dump all the rain on one side of the mountain range, causing plants and trees. On the mountain range's other side, there's no water left to fall. This causes a "rain shadow," an area