Wanderlust World Wanderlust World
1. Geography: The shape of the North American continent is more compact than that of Europe. This means that there is less landmass between the ocean and the interior of the continent in North America. This allows the cold, dry air from the interior of the continent to reach the coast more easily, which limits the extent of the marine west coast climate. In Europe, on the other hand, the landmass is more dissected, with peninsulas and bays that allow the marine air to penetrate further inland.
2. Ocean currents: The ocean currents that flow along the west coasts of North America and Europe also play a role in determining the climate. The North Pacific Ocean is much colder than the North Atlantic Ocean, due to the influence of the Arctic Ocean. The cold ocean currents that flow along the west coast of North America cool the air and reduce the amount of evaporation, which limits the development of marine west coast climates. In contrast, the North Atlantic Ocean is much warmer, and the ocean currents that flow along the west coast of Europe bring warm, moist air from the tropics. This warm air helps to create a more moderate climate and makes it more favorable for the development of marine west coast climates.
3. Mountain ranges: The presence of mountain ranges also affects the distribution of marine west coast climates. In North America, the coastal mountain ranges, such as the Sierra Nevada and the Cascades, block the flow of moist air from the ocean. This results in a rain shadow effect, which creates a drier climate in the interior of the continent. In Europe, the coastal mountain ranges are not as high, and they do not block the flow of moist air from the ocean as effectively. This allows the marine west coast climate to penetrate further inland.
As a result of these factors, marine west coast climates are much more widespread in western Europe than they are in North America.