The subarctic climate (also called subpolar climate , or boreal climate ) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50°N to 70°N, poleward of the humid continental climates . Like other Class D climates, they are rare in the Southern Hemisphere, only found at some isolated highland elevations. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification Dfc , Dwc , Dsc , Dfd , Dwd and Dsd .
35-414: [REDACTED] Route 510 (Labrador South Highway) Happy Valley-Goose Bay ( Inuit : Vâli ) is a town in the province of Newfoundland and Labrador , Canada. Located in the central part of Labrador on the coast of Lake Melville and the Churchill River , Happy Valley-Goose Bay is the largest population centre in the region with an estimated 8,040 residents in 2021. Incorporated in 1973, it comprises
70-553: A building. The old one-room school was bought by Bella and Clarence Brown in early 1962 and turned into a family residence. In 1949, the Air Force donated a second building which became the North Star School. Mrs. Perrault also became Happy Valley's first librarian. Bella Brown took over as Happy Valley's librarian when the North Star School's second building was donated as the new library. The Grenfell Mission operated
105-619: A dry winter, are found in parts of East Asia, like China, where the Siberian High makes the winters colder than places like Scandinavia or Alaska interior but extremely dry (typically with around 5 millimeters (0.20 in) of rainfall equivalent per month), meaning that winter snow cover is very limited. The Dwc climate can be found in: In the Southern Hemisphere, small pockets of the Lesotho Highlands and
140-469: A subarctic climate, receives an average rain-equivalent of 101.91 inches (2,588.5 mm) of precipitation per year. Coastal areas of Khabarovsk Krai also have much higher precipitation in summer due to orographic influences (up to 175 millimetres (6.9 in) in July in some areas), whilst the mountainous Kamchatka peninsula and Sakhalin island are even wetter, since orographic moisture isn't confined to
175-507: Is excessive. The frost-free season is very short, varying from about 45 to 100 days at most, and a freeze can occur anytime outside the summer months in many areas. The first D indicates continentality, with the coldest month below 0 °C (32 °F) (or −3 °C (27 °F)). The second letter denotes precipitation patterns: The third letter denotes temperature: Most subarctic climates have little precipitation, typically no more than 380 mm (15 in) over an entire year due to
210-676: Is found in the following areas: Further north and east in Siberia, continentality increases so much that winters can be exceptionally severe, averaging below −38 °C (−36 °F), even though the hottest month still averages more than 10 °C (50 °F). This creates Dfd climates, which are mostly found in the Sakha Republic : In the Southern Hemisphere , the Dfc climate is found only in small, isolated pockets in
245-633: Is now the largest community in Labrador. However, Labrador West (a region consisting of Labrador City and a nearby community, Wabush ) still has a higher population than Upper Lake Melville (which includes Happy Valley-Goose Bay and three nearby communities) Happy Valley and Goose Bay are connected by the Trans-Labrador Highway with Labrador City and Baie-Comeau in Quebec. The road was extended south to link with an existing road from
280-520: Is significant year-round and is heavy for a continental climate at its latitude. In the 2021 Canadian census conducted by Statistics Canada , Happy Valley-Goose Bay had a population of 8,040 living in 3,072 of its 3,390 total private dwellings, a change of -0.9% from its 2016 population of 8,109. With a land area of 304.52 km (117.58 sq mi), it had a population density of 26.4/km (68.4/sq mi) in 2021. The 2011 census showed that Happy Valley-Goose Bay has outgrown Labrador City and
315-590: The Blanc Sablon - St. Barbe ferry. It opened in December 2009. Prior to 1954, hardly any licence plates were issued to Labrador communities except for Happy Valley and the Goose Bay area. A series of small plates were issued to help fund road development. It was not until the mid-1960s that all of Labrador started using regular Newfoundland licence plates. Since 1992, the road from Baie-Comeau to Wabush
350-627: The Goose River to build the Goose Bay Air Force Base. Docking facilities for transportation of goods and personnel were built at Terrington Basin. Goose Air Base became a landing and refuelling stop for the Atlantic Ferry route . Soon after the site was selected, men from the coast of Labrador began working on the base. With World War II in bloom, it took only five months to build an operational military airport on
385-781: The Pacific Ocean , resulting in increased precipitation, especially during the winter months. This climate zone supports the presence of temperate rainforests, mostly on highest areas of the Valdivian rainforest in Chile and the subantarctic forest in Argentina. Climates classified as Dsc or Dsd , with a dry summer, are rare, occurring in very small areas at high elevation around the Mediterranean Basin , Iran , Kyrgyzstan , Tajikistan , Alaska and other parts of
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#1732772108101420-713: The Snowy Mountains of Australia , the Southern Alps of New Zealand , and the Lesotho Highlands . In South America , this climate occurs on the western slope of the central Andes in Chile and Argentina , where climatic conditions are notably more humid compared to the eastern slope. The presence of the Andes mountain range contributes to a wetter climate on the western slope by capturing moisture from
455-667: The northwestern United States ( Eastern Washington , Eastern Oregon , Southern Idaho , California's Eastern Sierra ), the Russian Far East , Akureyri, Iceland , Seneca, Oregon , and Atlin, British Columbia . Turkey and Afghanistan are exceptions; Dsc climates are common in Northeast Anatolia , in the Taurus and Köroğlu Mountains , and the Central Afghan highlands . In the Southern Hemisphere,
490-416: The subpolar oceanic climate , as the sea is approached where winter temperatures average near or above freezing despite maintaining the short, cool summers. In China and Mongolia, as one moves southwestwards or towards lower elevations, temperatures increase but precipitation is so low that the subarctic climate grades into a cold semi-arid climate . The Dfc climate, by far the most common subarctic type,
525-823: The Dsc climate is present in South America as a subarctic climate influenced by Mediterranean characteristics, often considered a high-altitude variant of the Mediterranean climate. It is located on the eastern slopes of the central Argentine Andes and in some sections on the Chilean side. While there are no major settlements exhibiting this climate, several localities in the vicinity experience it, such as San Carlos de Bariloche , Villa La Angostura , San Martín de los Andes , Balmaceda , Punta de Vacas , and Termas del Flaco . Climates classified as Dwc or Dwd , with
560-497: The base area. Happy Valley-Goose Bay lies at the southwest end of Lake Melville near the mouth of the Churchill River . The town is located on the southern shore of a peninsula created by Terrington Basin to the north and Goose Bay at the south. Happy Valley-Goose Bay displays a humid continental climate ( Köppen Dfb ) right on the borderline with a subarctic climate (Köppen Dfc ), marked by significant snowfall in
595-430: The coldest month should average below 0 °C (32 °F) (or −3 °C (27 °F)). Record low temperatures can approach −70 °C (−94 °F). With 5–7 consecutive months when the average temperature is below freezing, all moisture in the soil and subsoil freezes solidly to depths of many feet. Summer warmth is insufficient to thaw more than a few surface feet, so permafrost prevails under most areas not near
630-586: The first medical facilities when it opened a nursing station in 1951. In 1963, the provincial government built Paddon Memorial Hospital. CFB Goose Bay saw a reduction of NATO low-level tactical flight training in the decade 1996–2005, and the town faced an uncertain future as the federal government reduced the number of permanent Royal Canadian Air Force personnel to fewer than 100 all-ranks. The last NATO nations to use CFB Goose Bay for flight training, Germany and Italy, did not renew their leases after terminating in early 2006. The runway at Happy Valley-Goose Bay
665-635: The former town of Happy Valley and the Local Improvement District of Goose Bay. Built on a large sandy plateau in 1941, the town is home to the largest military air base in northeastern North America, CFB Goose Bay . In the summer of 1941, Eric Fry, an employee of the Canadian Department of Mines and Resources on loan to the Royal Canadian Air Force , selected a large sandy plateau near the mouth of
700-512: The interior of Labrador. Newfoundland and Labrador Route 510 Too Many Requests If you report this error to the Wikimedia System Administrators, please include the details below. Request from 172.68.168.237 via cp1104 cp1104, Varnish XID 181725325 Upstream caches: cp1104 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 05:35:08 GMT Subarctic climate This type of climate offers some of
735-409: The leased territory. The first settlers to the area came from coastal Labrador to work with McNamara Construction Company, which was contracted to build the Goose Bay Air Force Base. Their first choice was Otter Creek, where they were told that it would be too close to the base. A new location was chosen based upon the requirement to be at least 8.0 km (5 mi) from the base. In 1942, a new site
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#1732772108101770-406: The long summer days at such latitudes do permit some agriculture. In some areas, ice has scoured rock surfaces bare, entirely stripping off the overburden. Elsewhere, rock basins have been formed and stream courses dammed, creating countless lakes. Should one go northward or even toward a polar sea, one finds that the warmest month has an average temperature of less than 10 °C (50 °F), and
805-423: The long winters and make use of the short summers. Trees are mostly limited to conifers , as few broadleaved trees are able to survive the very low temperatures in winter. This type of forest is also known as taiga , a term which is sometimes applied to the climate found therein as well. Even though the diversity may be low, the area and numbers are high, and the taiga (boreal) forest is the largest forest biome on
840-425: The low temperatures and evapotranspiration . Away from the coasts, precipitation occurs mostly in the summer months, while in coastal areas with subarctic climates the heaviest precipitation is usually during the autumn months when the relative warmth of sea vis-à-vis land is greatest. Low precipitation, by the standards of more temperate regions with longer summers and warmer winters, is typically sufficient in view of
875-418: The most extreme seasonal temperature variations found on the planet: in winter, temperatures can drop to below −50 °C (−58 °F) and in summer, the temperature may exceed 26 °C (79 °F). However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least 10 °C (50 °F) to fall into this category of climate, and
910-460: The planet, with most of the forests located in Russia and Canada . The process by which plants become acclimated to cold temperatures is called hardening . Agricultural potential is generally poor, due to the natural infertility of soils and the prevalence of swamps and lakes left by departing ice sheets , and short growing seasons prohibit all but the hardiest of crops. Despite the short season,
945-453: The southern boundary of this climate zone. Seasonal thaw penetrates from 2 to 14 ft (0.6 to 4.3 m), depending on latitude, aspect, and type of ground. Some northern areas with subarctic climates located near oceans (southern Alaska , northern Norway , Sakhalin Oblast and Kamchatka Oblast ), have milder winters and no permafrost, and are more suited for farming unless precipitation
980-403: The subarctic climate grades into a tundra climate not at all suitable for trees. Southward, this climate grades into the humid continental climates with longer summers (and usually less-severe winters) allowing broadleaf trees ; in a few locations close to a temperate sea (as in northern Norway and southern Alaska ), this climate can grade into a short-summer version of an oceanic climate ,
1015-420: The summer, a ferry service connects Happy Valley-Goose Bay with Cartwright . Air Canada and Eastern Provincial Airways were the first air carriers in the area to carry passengers from outside the area into CFB Goose Bay . Labrador Airways Limited provided air transportation to local communities. Located at Otter Creek is a seaplane base that also provided airlifts to local communities and tourist lodges in
1050-428: The very low evapotranspiration to allow a water-logged terrain in many areas of subarctic climate and to permit snow cover during winter, which is generally persistent for an extended period. A notable exception to this pattern is that subarctic climates occurring at high elevations in otherwise temperate regions have extremely high precipitation due to orographic lift . Mount Washington , with temperatures typical of
1085-519: The warmer months and creates large glaciers in Kamchatka. Labrador , in eastern Canada, is similarly wet throughout the year due to the semi-permanent Icelandic Low and can receive up to 1,300 millimetres (51 in) of rainfall equivalent per year, creating a snow cover of up to 1.5 metres (59 in) that does not melt until June. Vegetation in regions with subarctic climates is generally of low diversity, as only hardy tree species can survive
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1120-418: The winter, which has average highs around −12 °C (10 °F). Summer highs, on the other hand, average 20 °C (68 °F). The average high temperature stays at or below freezing for five months of the year and the low does so for six months. Snowfall averages nearly 406 cm (160 in) per year, and can occur in all months except July and August. Precipitation, at nearly 940 mm (37 in),
1155-488: Was also an alternative, but unused, landing site for NASA 's now-decommissioned Space Shuttle , because of its size and length. Prior to its amalgamation with Happy Valley, the Local Improvement District of Goose Bay was set up in 1970 and included an area called Spruce Park and the Canadian Department of Transport Housing areas. It grew to include other areas of the base until 1973, when it comprised all of
1190-673: Was chosen that was first called Refugee Cove; it was not until 1955 that it eventually was renamed Happy Valley. The first three families to arrive to work at the construction of the base were the Saunders from Davis Inlet , the Broomfields from Big Bay, and the Perraults from Makkovik . Happy Valley's first school was operated by a Mrs. Perrault from her home until 1946, when the Royal Canadian Air Force donated
1225-422: Was connected to an open route year-round to Happy Valley-Goose Bay. The town was serviced by boat and container ship to the ports from Newfoundland and the port of Montreal . Most of the town's supplies were transported by container vessels brought to the docking facilities located at Terrington Basin. These facilities were operated by Transport Canada . The shipping season usually lasted from June to December. In
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