Subarctic: Dfc and Dfd
By: Aniruth K. and Kevin T.
Background Info: Subarctic
The Dfc climate, by far the most common subarctic type, is found in the following areas:
- Much of Siberia
- The Kamchatka Peninsula
- The northern and central parts of the Kuril Islands and Sakhalin Island
- The Western Alps between 1600 and 2100 meters (5,249 and 6,890 feet), and the Eastern Alps between 1450 and 1800 meters (4,757 and 5,905 feet) - France, Switzerland, Germany, Italy and Austria.
- The Pyrenees, between 1600 and 2100 meters (5,249 and 6,890 feet) - Andorra, France and Spain.
- The northern half of Scandinavia (milder winters in coastal areas)
- Most of Interior, Western and Southcentral Alaska
- The high Rocky Mountains in Colorado, Wyoming, Idaho and Montana and the White Mountains of New Hampshire
- Much of Canada from about 53-55°N to the tree line, including:
Anchorage, Alaska, United States
A - Mountains
C - No continentality
O - On the ocean area, oceanality
W - It is in the southern part of the polar cell
Video: Climate and Animals
Where - Along the Pacific rim of Asia and in North America
Life Span - Two years
Scientific Name - Oncorhynchus gorbuscha
Where - Subarctic and Temperate North Pacific Ocean
Life Span - 15 to 25 years
Scientific Name - Lamna ditropis
Conservation Status - Least Concern
Northern Fur Seals
Where - North Pacific Ocean, The Bering Sea and The Sea of Okhotsk
Life Span - 10 to 27 years, with females living longer than males
Scientific Name - Callorhinus ursinus
Conservation Status - Vulnerable
Where - NW Pacific Ocean
Life Span - 23 years
Scientific Name - Phoceana phoceana
Conservation Status - Least concern
Height: 30 cm
Height: 1 cm
Height: 50 cm
Height: 15 cm
The subarctic climate has brief, cool summers and bitterly cold winters. The subarctic experiences the lowest temperatures outside of Antarctica, and the largest annual temperature range of any climate. Though the summer is short, the day length is quite long with June days lasting 18.8 hrs at 60oN. Daytime temperatures can rise above 25 C (77F), while dropping to 10 C (50F)during the evening. The freeze free period is of course short, being only three months long. However, a freeze can occur in any month.
Total annual precipitation in the subarctic is fairly small, amounting to no more than 380 mm (15 in) to 500 mm (21 in) over the year. Most of the precipitation is cyclonic in origin and concentrated during the warmer months (except along coasts) where air masses are more humid. Notice that the summer precipitation at Yakutsk is three times that of winter. The extremely cold temperatures, coupled with the subsidence of the Polar High, are responsible for the meager precipitation that falls during the winter.
The Boreal forest is the world's largest land-based biome. Spreading over continents and covering many countries, the Boreal plays a significant role in the planet's biodiversity and even its climate.
1. The Boreal Forest is named after Boreas, the Greek god of the North wind.
2. The biome is known as boreal in Canada, but is also known as taiga, a Russian word. Taiga is most commonly used to refer to the biome's more barren northern locations while boreal is used for the more temperate, southern area (we're just using boreal for ease).Image via BU Land Cover and Land Cover Dynamics
3. The boreal covers most of inland Canada and Alaska, most of Sweden, Finland and inland Norway, much of Russia, and the northern parts of Kazakhstan, Mongolia and Japan.
4. The boreal represents 29% of the world's forest cover.
5. While typically low on biodiversity, the boreal around the globe supports a range of animals. Canada's boreal forest is home to 85 species of mammals, 130 species of fish, some 32,000 species of insects, and 300 species of birds.