The Arctic Of The Antarctic Circle - 1716 Words

Any point north of the Arctic Circle or south of the Antarctic Circle will have one period in the summer when the sun does not set, and one period in the winter when the sun does not rise. At progressively higher latitudes, the maximum periods of midnight sun and polar night are progressively longer. For example, at the military and weather station Alert located at 82 °30†²05†³N and 62 °20†²20†³W, on the northern tip of Ellesmere Island, Canada (about 450 nautical miles or 830 km from the North Pole), the sun begins to peek above the horizon for minutes per day at the end of February and each day it climbs higher and stays up longer; by 21 March, the sun is up for over 12 hours. On 6 April the sun rises at 0522 UTC and remains above the horizon until it sets below the horizon again on 6 September at 0335 UTC. By October 13 the sun is above the horizon for only 1 hour 30 minutes and on October 14 it does not rise above the horizon at all and remains below the horizon until it rises again on 27 February.[17] First light comes in late January because the sky has twilight, being a glow on the horizon, for increasing hours each day, for more than a month before the sun first appears with its disc above the horizon. From mid-November to mid-January, there is no twilight. In the weeks surrounding 21 June, in the northern polar region, the sun is at its highest elevation, appearing to circle the sky there without going below the horizon. Eventually, it does go below the horizon,Show MoreRelatedGlobal Warming Reflection Paper1510 Words   |  7 Pageshave a greener earth and slow the global warming. Environmental and social implications regarding climate changes Climate changes are affecting the earth worldwide. According to Arctic Melt Unnerves the Experts article â€Å"The Arctic ice cap shrank so much this summer that waves briefly lapped along two long-imagined Arctic shipping routes, the Northwest Passage over Canada and the Northern Sea Route over Russia† (NY Times, 2007). Ice glaciers are melting and sea levels are increasing. The climate changeRead MoreThe Negative Effect of Global Warming892 Words   |  4 Pagesmountain glaciers, Arctic sea ice, and ice sheets covering West Antarctica and Greenland (Global Warming Puts the Arctic on Thin Ice). When the large blocks of ice start to melt, the ability to reflect sunlight is lost. Usually when sunlight hits the polar ice caps, it is reflected back into space (Global Warming Puts the Arctic on Thin Ice). Without the ability, the ocean absorbs the sunlight and heats up ocean water (Global Warming Puts the Arctic on Thin Ice). This is how Arctic temperatures continueRead MoreClim ate Change1617 Words   |  7 PagesThe deterioration in Arctic sea ice, both in magnitude and width, over the last numerous decades is additional evidence for rapid climate change. Sea ice is frozen seawater that drifts on the ocean surface. It overlays millions of square kilometers in the Polar Regions, fluctuating with the seasons. In the Arctic, some sea ice remains year after year, although almost all Southern Ocean or Antarctic sea ice melts away and reforms annually. Satellite surveillances show that Arctic sea ice is now deterioratingRead MoreGlobal Warming Is The Main Features Of Climate Change921 Words   |  4 Pagessalinization, etc., resulting in natural ecological environment imbalances, the coastal, estuary, bay to the coastal zone of ecological environment system disaster. Global climate change, climate warming, rising temperatures may lead to the Antarctic Peninsula and the arctic melt, and influence polar bear and walrus survival environment. Global climate change will lead to human health is at risk. Scientific research shows that as the climate warming, some harmful substances in the air, such as fungal sporesRead MoreThe Density Of Jupiter1293 Words   |  6 Pageshigher in the sky. This results in warmer average temperatures, as additional solar radiation reaches the surface. When the north pole is tilted away from the Sun, the reverse is true and the weather is generally cooler. Above the Arctic Circle and below the Antarctic Circle, an extreme case is reached in which there is no daylight at all for part of the year. This is called a polar night. This variation in the weather (because of the direction of the Earths axial tilt) results in the seasons. TheRead MoreGlobal Warming : Fact Or Fiction? Essay1395 Words   |  6 Pagesearth has undergone at least five different ice ages, in addition to various heating cycles. The man himself has never been at the forefront of any of these causes. Currently, the earth is in the middle of one of its heating cycles which will probably circle back again to a cooling cycle. In fact, it was not more than sixty years ago when the academic world was advocating for climate change due to â€Å"global cooling,† rather than global warming. This is further evidence for a cyclical climate rather thanRead MoreDiscussion of a biome using specific information about precipitation patterns, plants, animals, and general locations 1356 Words   |  6 Pagesreceive extreme temperatures of 43-49 °C during day and usually have very little rainfall and/or concentrated rainfall in short periods between long rainless periods, averaging about 250 mm of rain per year. The cold deserts are situated near the Arctic Circle and are mostly covered in snow, but can receive rainfall during spring(usually around 15-26 cm per year). Temperatures range from -2 to 26 °C. Contrary to popular belief, deserts have usually high biodiversity. Both the flora and fauna are adaptedRead MoreA Study On The Killer Whales2384 Words   |  10 Pagesthe killer whales to justify breeding killer whales and keeping them in marine parks. Killer Whales are the largest member of the dolphin family and they found all over the world but in the largest quantities in the colder water of the Arctic and Antarctic. They have also been reportedly sighted in the warmer waters of the tropics and off the southern coasts of the United States (â€Å"Welcome†). Male killer whales can weigh up to 22,000 pounds and females killer whales can weigh up to 16,500 poundsRead MoreThe Building Sector Affects The Society2927 Words   |  12 Pagesdegrees. KurowskI (2014) also states that during the summer solstice the sun is directly overhead (90 degrees) at the Tropic of Cancer and has an angle of 66.5 at the Equator and is at the horizon at the Antarctic Circle (66.5 S). Below the Antarctic Circle, it is dark 24 hours a day. Above the Arctic Circle (66.6 N) there is sunlight 24 hours a day. Shaded surface For a shaded surface, the radiation incident falling on it varies based on the shading type. The difference in the shading type complicatesRead MoreClimate Change And The Global Warming2120 Words   |  9 Pagespresent climate change as â€Å"stronger than expected, sooner than forecast†. She drawn this conclusion from following aspects. Firstly, recent 30 or more years, The Arctic Ocean is losing sea ice. (Stroeve, Holland, Meir, Scambon Serreze, 2007) It means ocean water would be warmed more by the sun. And it would cause a vicious circle that the Arctic Ocean could be ice-free quickly during the summer, as well as difficult to form and to retain sea ice during the winter. According to a current forecast that