The Metro Lines run: 1  Red: serves the northern part of the city. Main stations are: Union Station, Metro Center, Chinatown and Dupont Circle. 2  Blue: runs west-east through the city and then south. Main stations are: Capitol South, Smithsonian, McPhearson Square (White House), Arlington National Cemetery, National Airport.
Climate In the arctic tundra there are two seasons: winter and summer. In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3Â°C to 12Â°C.In the winter the opposite light conditions are present.There are several weeks where the sun never rises.limate In the arctic tundra there are two seasons: winter and summer. In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3Â°C to 12Â°C. In the winter the opposite light conditions are present. There are several weeks where the sun never rises.
In alpine tundra, where permafrost is absent or. patchy, the shallow bedrock or layers of rock near the. soilâs surface block water drainage and create some of. the same landscape features that permafrost does. TUNDRA WETLANDS. Although precipitation in arctic tundra is similar to. that of deserts (5 inches â12.7 centimeters â or less), the water has nowhere to go once it hits the. permafrost. The soil above the permafrost or bedrock, called the active layer , becomes saturated like a wet. sponge. The results are (1) wetlands typical of much. wetter environments and (2) freeze-thaw landforms. of tundra topography. The tundra contains ponds, lakes, bogs, marshes, and. river and stream corridor wetlands.