بحيرة سوپيريور Lake Superior

Coordinates: 47°42′N 87°30′W / 47.7°N 87.5°W / 47.7; -87.5 (Lake Superior)


بحيرة سوپريور
Lake Superior
Gichi-gami or Anishinaabewi-gichi-gami (Ojibwe)
Lake Superior, ISS.jpg
Lake Superior taken from the International Space Station on June 6, 2019
Location of Lake Superior in North America.
Location of Lake Superior in North America.
سوپيريور
Lake Superior bathymetry map.png
Lake Superior bathymetric map.[1][2][3] The deepest point, roughly off its southeastern shore, is marked with "×".[4] The deep trenches in its eastern part may have originated from tunnel valleys.[5][6]
الموقعأمريكا الشمالية
المجموعةالبحيرات العظمى
الاحداثيات47°42′N 87°30′W / 47.7°N 87.5°W / 47.7; -87.5 (Lake Superior)
النوعGlacial
الموارد الرئيسيةNipigon, St. Louis, Pigeon, Pic, White, Michipicoten, Kaministiquia Rivers
التصريفات الرئيسيةSt. Marys River
منطقة المستجمعات49,305 sq mi (127,700 km2)
بلدان الحوضCanada, United States
أقصى طول350 mi (560 km)
أقصى عرض160 mi (260 km)
مساحة السطح31,820 sq mi (82,400 km2) [7] Canadian portion 11,081 sq mi (28,700 km2)
متوسط العمق482 ft (147 m)
أقصى عمق1,332 ft (406 m)[7]
حجم المياه2,900 cu mi (12,000 km3)
زمن المكوث191 سنة
طول الساحل12,725 mi (4,385 km)
ارتفاع السطح600 ft (180 m)[7]
الجزرIsle Royale, Apostle Islands, Slate Islands
التجمعات السكنيةثندر باي، أونتاريو
دولوث، مينسوتا
Sault Ste. Marie, Ontario
ماركت، مشيگن
سوپيريور، وسكنسن
Sault Ste. Marie, Michigan
1 Shore length is not a well-defined measure.

بحيرة سوپيريور (إنگليزية: Lake Superior، فرنسية: Lac Supérieur) إحدى البحيرات العظمى الخمس الواقعة في أمريكا الشمالية، وهي أكبر بحيرة عذبة في العالم. كما أنها أعمق بحيرة بين البحيرات العظمى وأعلاها ارتفاعًا عن مستوى سطح البحر. تقع في أقصى الشمال والغرب. انظر: البحيرات العظمى. وتشكِّل بحيرة سوبيريور جزءًا من منظومة الطريق المائي الداخلي للولايات المتحدة وكندا. وتمتد هذه المنظومة من المحيط الأطلسي خلال طريق سانت لورنس البحري والبحيرات العظمى ونهر المسيسيبي إلى خليج المكسيك. أطلق تجارُ الفراء الفرنسيون الأوائل اسم سوبيريير على البحيرة وتعني بالفرنسية البحيرة العليا.

بحيرة سوپريور


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الاسم

False color view of Lake Superior as seen by the AVHRR instrument onboard MetOp-B. Made in a 221 composition, so colors are approximate. Received by an amateur station via the HRPT downlink with a 1m parabolic antenna.
خريطة البحيرات العظمى (بحيرة سوبيريور بالأزرق الداكن)

The Ojibwe name for the lake is gichi-gami (in syllabics: ᑭᒋᑲᒥ, pronounced gitchi-gami or kitchi-gami in different dialects),[8] meaning "great sea". Henry Wadsworth Longfellow wrote this name as "Gitche Gumee" in the poem The Song of Hiawatha, as did Gordon Lightfoot in his song "The Wreck of the Edmund Fitzgerald".

According to other sources, the full Ojibwe name is ᐅᒋᑉᐧᐁ ᑭᒋᑲᒥ Ojibwe Gichigami ("Ojibwe's Great Sea") or ᐊᓂᐦᔑᓈᐯ ᑭᒋᑲᒥ Anishinaabe Gichigami ("Anishinaabe's Great Sea").[9] The 1878 dictionary by Father Frederic Baraga, the first one written for the Ojibway language, gives the Ojibwe name as Otchipwe-kitchi-gami (a transliteration of Ojibwe Gichigami).[8]

In the 17th century, the first French explorers approached the great inland sea by way of the Ottawa River and Lake Huron; they referred to their discovery as le lac supérieur (the upper lake, i.e., above Lake Huron). Some 17th-century Jesuit missionaries referred to it as Lac Tracy (for Alexandre de Prouville de Tracy).[10] After taking control of the region from the French in the 1760s following their defeat in the French and Indian War, the British anglicized the lake's name to Superior, "on account of its being superior in magnitude to any of the lakes on that vast continent".[11]


الموقع والحجم

تقع بحيرة سوبيريور على الحدود الدولية بين الولايات المتحدة وكندا. ويقع إقليم أونتاريو الكندي شمال وشرق البحيرة. وتقع مشيجان ووسكنسن في الولايات المتحدة جنوب البحيرة ومينيسوتا في غربها. تغطِّي بحيرة سوبيريور مساحة 82,103 كم²، ويبلغ طولها 563 كم، وعرضها 257كم. تقع البحيرة على ارتفاع 183م فوق مستوى سطح البحر، وأعمق نقطة فيها 406م.

الوصف

تتميَّز سواحل البحيرة بأنها صخرية وصلدة. وترتفع السنون الصخرية في بعض المناطق وبخاصة على الساحل الشمالي. وتمتد الجدران الحجرية الرملية الملوّنة المعروفة باسم الصخور المصورة على بعض شواطئ ميتشيجان. وتنتشر المصايف وقرى الصيد والمتنزهات على طول الطريق الممتد باتجاه ساحل مينيسوتا الصخري. وهناك برج إضاءة يسمّى سبليت روك لايت هاوس، وهو علامة مُمَيِّزة، يحذِّر الملاحين من الحافات الصخرية في خليج بيفر على امتداد شواطئ مينيسوتا.

وتغطِّي الغابات معظم الأراضي المحاذية للبحيرة. وتصب مياه ما يقرب من 200 نهر معظمها أنهار قصيرة، في بحيرة سوبيريور. وتشكِّل معظم هذه الأنهار شلالات تغمر الأراضي الصخرية العالية. ويُعَد نهر سانت لويس من أكبر الأنهار التي تصب في البحيرة، وهو يتلقى مياهه من أعالي مياه نهر سانت لورنس، إذ يصب في الطرف الغربي من البحيرة. تقع شبه جزيرة كوِيناو المشهورة بإرسابات النحاس، في وسط بحيرة ميتشيجان تماما. تنتشر على سطح البحيرة أعداد كبيرة من الجُزر، أكبرُها جزيرةُ مشيگن رويال، وأونتاريو سانت إجنيس، وميتشيبيكوتين. تقع كثير من الجُزر الصغيرة شمال شواطئ وسكنسن، وتسمى جزر أبوستل.

الهيدروجرافيا

Lake Superior empties into Lake Huron via the St. Marys River and the Soo Locks (Sault Ste. Marie locks). Lake Superior is the largest freshwater lake in the world by area and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish.

Lake Superior deepest point[4] on the bathymetric map.[1]

Lake Superior has a surface area of 31,700 square miles (82,103 km2),[12] which is approximately the size of South Carolina or Austria. It has a maximum length of 350 statute miles (560 km; 300 nmi) and maximum breadth of 160 statute miles (257 km; 139 nmi).[13] Its average depth is 80.5 fathoms (483 ft; 147 m) with a maximum depth of 222.17 fathoms (1,333 ft; 406 m).[12][13][7] Lake Superior contains 2,900 cubic miles (12,100 km3) of water.[12] There is enough water in Lake Superior to cover the entire land mass of North and South America to a depth of 30 centimetres (12 in).[أ] The shoreline of the lake stretches 2,726 miles (4,387 km) (including islands).[12] The lake boasts a very small ratio (1.55) of catchment area to surface area, which indicates minimal terrestrial influence.[14]

American limnologist J. Val Klump was the first person to reach the lowest depth of Lake Superior on July 30, 1985, as part of a scientific expedition, which at 122 fathoms 1 foot (733 ft or 223 m) below sea level is the second-lowest spot in the continental interior of the United States and the third-lowest spot in the interior of the North American continent after Great Slave Lake in the Northwest Territories of Canada (1,503 ft or 458 m below sea level) and Iliamna Lake in Alaska 942 ft or 287 m. (Though Crater Lake is the deepest lake in the United States and deeper than Lake Superior, Crater Lake's elevation is higher and consequently its deepest point is 4,229 feet (1,289 m) above sea level.)

While the temperature of the surface of Lake Superior varies seasonally, the temperature below 110 fathoms (660 ft; 200 m) is an almost constant 39 °F (4 °C). This variation in temperature makes the lake seasonally stratified. Twice per year, however, the water column reaches a uniform temperature of 39 °F (4 °C) from top to bottom, and the lake waters thoroughly mix. This feature makes the lake dimictic. Because of its volume, Lake Superior has a retention time of 191 years.[15][16]

Annual storms on Lake Superior regularly feature wave heights of over 20 feet (6 m).[17] Waves well over 30 feet (9 m) have been recorded.[18]

الروافد

Lake Superior basin

Lake Superior is fed by more than 200 rivers, including the Nipigon River, the St. Louis River, the Pigeon River, the Pic River, the White River, the Michipicoten River, the Bois Brule River and the Kaministiquia River. The lake's outlet at St. Marys River has a relatively steep gradient with rapids. The Soo Locks enable ships to bypass the rapids and to overcome the 25-foot (8 m) height difference between Lakes Superior and Huron.

Water levels

A frozen Duluth Harbor entrance

The lake's average surface elevation is 600 feet (183 m)[13][15] above sea level. Until approximately 1887, the natural hydraulic conveyance through the St. Marys River rapids determined the outflow from Lake Superior. By 1921, development in support of transportation and hydroelectric power resulted in gates, locks, power canals and other control structures completely spanning St. Marys rapids. The regulating structure is known as the Compensating Works and is operated according to a regulation plan known as Plan 1977-A. Water levels, including diversions of water from the Hudson Bay watershed, are regulated by the International Lake Superior Board of Control, which was established in 1914 by the International Joint Commission.

Lake Superior's water level was at a new record low in September 2007, slightly less than the previous record low in 1926.[19] Water levels recovered within a few days.[20]

Historic high water The lake's water level fluctuates from month to month, with the highest lake levels in October and November. The normal high-water mark is 1.17 feet (0.36 m) above the datum (601.1 ft or 183.2 m). In the summer of 1985, Lake Superior reached its highest recorded level at 2.33 feet (0.71 m) above the datum.[21] 2019 and 2020 set new high-water records in nearly every month.[21]

Historic low water The lake's lowest levels occur in March and April. The normal low-water mark is 0.33 feet (0.10 m) below the datum. In the winter of 1926 Lake Superior reached its lowest recorded level at 1.58 feet (0.48 m) below the datum.[21] Additionally, the entire first half of the year (January to June) included record low months. The low water was a continuation of the dropping lake levels from the previous year, 1925, which set low-water records for October through December. During the nine-month period of October 1925 to June 1926, water levels ranged from 1.58 feet (0.48 m) to 0.33 feet (0.10 m) below Chart Datum.[21] In the summer of 2007 monthly historic lows were set; August at 0.66 feet (0.20 m), and September at 0.58 feet (0.18 m).[21]

التغير المناخي

According to a study by professors at the University of Minnesota Duluth, Lake Superior may have warmed faster than its surrounding area.[22] Summer surface temperatures in the lake appeared to have increased by about 4.5 °F (2.5 °C) between 1979 and 2007, compared with an approximately 2.7 °F (1.5 °C) increase in the surrounding average air temperature. The increase in the lake's surface temperature may be related to the decreasing ice cover. Less winter ice cover allows more solar radiation to penetrate and warm the water. If trends continue, Lake Superior, which freezes over completely once every 20 years, could routinely be ice-free by 2040[23] although more current data through 2021 does not support this trend.[24]

Warmer temperatures could lead to more snow in the lake effect snow belts along the shores of the lake, especially in the Upper Peninsula of Michigan. Two recent consecutive winters (2013–2014 and 2014–2015) brought high ice coverage to the Great Lakes, and on March 6, 2014, overall ice coverage peaked at 92.5%, the second-highest in recorded history.[25] Lake Superior's ice coverage further beat 2014's record in 2019, reaching 95% coverage.[26]

الجغرافيا

Lake Superior, by Walter Shirlaw

The largest island in Lake Superior is Isle Royale in Michigan. Isle Royale contains several lakes, some of which also contain islands. Other well-known islands include Madeline Island in Wisconsin, Michipicoten Island in Ontario, and Grand Island (the location of the Grand Island National Recreation Area) in Michigan.

The larger cities on Lake Superior include the twin ports of Duluth, Minnesota, and Superior, Wisconsin; Thunder Bay, Ontario; Marquette, Michigan; and the twin cities of Sault Ste. Marie, Michigan, and Sault Ste. Marie, Ontario. Duluth-Superior, at the western end of Lake Superior, is the most inland point on the Saint Lawrence Seaway and the most inland port in the world.

Among the scenic places on the lake are Apostle Islands National Lakeshore, Brockway Mountain Drive on the Keweenaw Peninsula, Isle Royale National Park, Porcupine Mountains Wilderness State Park, Pukaskwa National Park, Lake Superior Provincial Park, Grand Island National Recreation Area, Sleeping Giant (Ontario) and Pictured Rocks National Lakeshore. The Great Lakes Circle Tour is a designated scenic road system connecting all of the Great Lakes and the St. Lawrence River.[27]


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المناخ

Lake Superior's size reduces the severity of the seasons of its humid continental climate (more typically seen in locations like Nova Scotia).[28] The water surface's slow reaction to temperature changes, seasonally ranging between 32 and 55 °F (0–13 °C) around 1970,[29] helps to moderate surrounding air temperatures in the summer (cooler with frequent sea breeze formations) and winter, and creates lake-effect snow in colder months. The hills and mountains that border the lake hold moisture and fog, particularly in the fall.

الجيولوجيا

Most of Lake Superior lies within the basin of the Midcontinent Rift.

The rocks of Lake Superior's northern shore date back to the early history of the earth. During the Precambrian (between 4.5 billion and 540 million years ago) magma forcing its way to the surface created the intrusive granites of the Canadian Shield.[30] These ancient granites can be seen on the North Shore today. It was during the Penokean orogeny, part of the process that created the Great Lakes tectonic zone, that many valuable metals were deposited. The region surrounding the lake has proved to be rich in minerals, with copper, iron, silver, gold and nickel the most frequently mined. Notable production includes gold from the Hemlo mine near Marathon, copper from the Keweenaw Peninsula and the Mamainse Point Formation, iron from the Gogebic Range, silver at Silver Islet, and uranium at Theano Point.

The mountains steadily eroded, depositing layers of sediments that compacted and became limestone, dolomite, taconite and the shale at Kakabeka Falls. The continental crust was later riven, creating one of the deepest rifts in the world.[31] The lake lies in this long-extinct Mesoproterozoic rift valley, the Midcontinent Rift. Magma was injected between layers of sedimentary rock, forming diabase sills. This hard diabase protects the layers of sedimentary rock below, forming the flat-topped mesas in the Thunder Bay area. Amethyst formed in some of the cavities created by the Midcontinent Rift, and there are several amethyst mines in the Thunder Bay area.[32]

Basaltic columns along Lake Superior

Lava erupted from the rift and formed the black basalt rock of Michipicoten Island, Black Bay Peninsula, and St. Ignace Island.[بحاجة لمصدر]

In the most recent geological history, during the Wisconsin glaciation 10,000 years ago, ice covered the region at a thickness of 1.25 miles (2 km). The land contours familiar today were carved by the advance and retreat of the ice sheet. The retreat left gravel, sand, clay and boulder deposits. Glacial meltwaters gathered in the Superior basin creating Lake Minong, a precursor to Lake Superior.[33] Without the immense weight of the ice, the land rebounded, and a drainage outlet formed at Sault Ste. Marie, becoming today's St. Mary's River.

التاريخ

Historical map of Lake Superior and Northern Michigan, published 1879 by Rand McNally

The first people came to the Lake Superior region 10,000 years ago after the retreat of the glaciers in the Last Glacial Period. They are known as the Plano, and they used stone-tipped spears to hunt caribou on the northwestern side of Lake Minong. The Shield Archaic peoples arrived around 5000 BC; evidence of this culture can be found at the eastern and western ends of the Canadian shore. They used bows and arrows, paddled dugout canoes, fished, hunted, mined copper for tools and weapons, and established trading networks. They are believed to be the direct ancestors of the Ojibwe and Cree.[34] The people of the Laurel complex (c. 500 BC to AD 500) developed seine net fishing, evidence being found at rivers around Superior such as the Pic and Michipicoten. The people of the Terminal Woodland period were evident in the area from AD 900 to 1650. They were Algonquian peoples who hunted, fished and gathered berries. They used snowshoes, birch bark canoes and conical or domed lodges. At the mouth of the Michipicoten River, nine layers of encampments have been discovered. Most of the Pukaskwa Pits were likely made during this time.[34]

Pictographs at Lake Superior Provincial Park, Ontario

The Anishinaabe people (an ethnic grouping including the Ojibwe/Chippewa) have inhabited the Lake Superior region for over five hundred years and were preceded by the Dakota, Meskwaki (Fox), Menominee, Nipigon, Noquet and Gros Ventres. After the arrival of Europeans, the Anishinaabe made themselves middle-men between the French fur traders and other Native peoples. They soon became the dominant Native American nation in the region: they forced out the Sioux and Fox and won a victory against the Iroquois west of Sault Ste. Marie in 1662. By the mid-18th century, the Ojibwe occupied all of Lake Superior's shores.[35]

Reconstructed Great Hall, Grand Portage National Monument, Minnesota

In the 18th century, as the booming fur trade supplied Europe with beaver hats, the Hudson's Bay Company had a virtual monopoly in the region until 1783, when the rival North West Company was formed. The North West Company built forts on Lake Superior at Grand Portage, Fort William, Nipigon, the Pic River, the Michipicoten River, and Sault Ste. Marie. But by 1821, with competition harming the profits of both, the companies merged under the Hudson's Bay Company name. Many towns around the lake are current or former mining areas, or engaged in processing or shipping. Today, tourism is another significant industry: the sparsely populated Lake Superior country, with its rugged shorelines and wilderness, attracts vacationers and adventurers.

النقل البحري

"Ice blockade in Marquette Harbor, June 1873", stereoscopic photo

Lake Superior has been an important link in the Great Lakes Waterway, providing a route for the transportation of iron ore as well as grain and other mined and manufactured materials. Large cargo vessels called lake freighters, as well as smaller ocean-going freighters, transport these commodities across Lake Superior. Shipping was slow to arrive at Lake Superior in the 19th century. The first steamboat to run on the lake was the Independence in 1847, whereas the first steamers on the other Great Lakes began sailing in 1816.[36][37] Ice closes the lake shipping from mid-January to late March. Exact dates for the shipping season vary each year,[38] depending on weather conditions that form and break the ice.

حطام السفن

انظر أيضاً: Great Storms of the North American Great Lakes, List of shipwrecks of Isle Royale, Whitefish Point Underwater Preserve, and List of shipwrecks of western Lake Superior

The southern shore of Lake Superior between Grand Marais, Michigan, and Whitefish Point is known as the "Graveyard of the Great Lakes"; more ships have been lost around the Whitefish Point area than any other part of Lake Superior.[39] These shipwrecks are now protected by the Whitefish Point Underwater Preserve. Storms that claimed multiple ships include the Mataafa Storm in November 1905 and the Great Lakes Storm of 1913.

Wreckage of إس‌إس Cyprus—a 420-foot (130 m) ore carrier that sank on October 11, 1907, during a Lake Superior storm in 77 fathoms (460 ft or 140 m) of water—was located in August 2007. Built in Lorain, Ohio, Cyprus was launched August 17, 1907, and was lost on her second voyage hauling iron ore from Superior, Wisconsin, to Buffalo, New York, with the sole survivor among her 23 crew being Charles G. Pitz.[40] In 1918 the last warships to sink in the Great Lakes, French minesweepers Inkerman and Cerisoles, vanished in a Lake Superior storm, perhaps upon striking the uncharted danger of the Superior Shoal in an otherwise deep part of the lake. With 78 crewmembers dead, their sinking marked the largest loss of life on Lake Superior to date.

إس‌إس Edmund Fitzgerald is the last ship that sank in Lake Superior, 15 nautical miles (28 km; 17 mi) from Whitefish Point in a storm on November 10, 1975. The wreck was immortalized by Gordon Lightfoot in his ballad "The Wreck of the Edmund Fitzgerald". All 29 crew members died, and no bodies were recovered. Edmund Fitzgerald was battered so intensely by Lake Superior that the 729-foot (222 m) ship split in half; her two pieces lie approximately 170 feet (52 m) apart at a depth of 88 fathoms (530 ft or 160 m).

Lightfoot sings that "Superior, they said, never gives up her dead".[41] This is because of the unusually cold water, under 36 °F (2 °C) on average around 1970.[29] Normally, bacteria decaying a sunken body will bloat it with gas, causing it to float to the surface after a few days. But Lake Superior's water is cold enough year-round to inhibit bacterial growth, and bodies tend to sink and never resurface.[42] Joe MacInnis reported that in July 1994, explorer Frederick Shannon's Expedition 94 to the wreck of Edmund Fitzgerald discovered a man's body near the port side of her pilothouse, not far from the open door, "fully clothed, wearing an orange life jacket, and lying face down in the sediment".[43]

In February 2024 it was announced that wreckage from the Arlington was discovered from a sinking in 1940.[44]


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البيئة

Bedrock shoreline, Neys Provincial Park, Ontario
Pictured Rocks National Lakeshore, Michigan

More than 80 species of fish have been found in Lake Superior. Species native to the lake include banded killifish, bloater, brook trout, burbot, cisco, lake sturgeon, lake trout, lake whitefish, longnose sucker, muskellunge, northern pike, pumpkinseed, rock bass, round whitefish, smallmouth bass, walleye, white sucker and yellow perch. In addition, many fish species have been either intentionally or accidentally introduced to Lake Superior: Atlantic salmon, brown trout, carp, chinook salmon, coho salmon, freshwater drum, pink salmon, rainbow smelt, rainbow trout, round goby, ruffe, sea lamprey and white perch.[45][46]

Lake Superior has fewer dissolved nutrients relative to its water volume than the other Great Lakes and so is less productive in terms of fish populations and is an oligotrophic lake. This is a result of the underdeveloped soils found in its relatively small watershed.[15] It is also a reflection of relatively small human population and small amount of agriculture in its watershed. However, nitrate concentrations in the lake have been continuously rising for more than a century. They are still much lower than levels considered dangerous to human health; but this steady, long-term rise is an unusual record of environmental nitrogen buildup. It may relate to anthropogenic alternations to the regional nitrogen cycle, but researchers are still unsure of the causes of this change to the lake's ecology.[47]

As for other Great Lakes fish, populations have also been affected by the accidental or intentional introduction of foreign species such as the sea lamprey and Eurasian ruffe. Accidental introductions have occurred in part by the removal of natural barriers to navigation between the Great Lakes. Overfishing has also been a factor in the decline of fish populations.[48]

التجارة

لا تتجمد البحيرة خلال فصل الشتاء إلا بعد أن تجمد الموانئ، مما يؤثر على الملاحة ويقيِّدها. ويمتد موسم الملاحة من منتصف شهر أبريل إلى ديسمبر. وتنقل الزوارق خام الحديد، التاكونيت والقمح، والخشب، والنحاس، والمعادن الأخرى إلى الموانئ الواقعة على طول البحيرات العظمى وإلى الشرق منها. وتجعل مغالقُ قنوات سو في سولت سانت ماري السفن تدور حول مياه نهر سانت ماري السريعة. انظر: سو، قنوات. يربط هذا النهر بحيرة سوبيريور ببحيرة هورون. من أهم موانئ البحيرة: دولوث، وتوهاربورز، وتاكونايت وجراند ماريس، وسيلفر باي، وجميعها في مينيسوتا، وكذلك سوبيريور، وأشلاند في وسكنسن، وماركويت في ميتشيجان، وتندربي ومتشيبيكوتين هاربور في أونتاريو.

انظر أيضاً

عام

ملاحظات

  1. ^ North America (2.47×107 km2) and South America (1.78×107 km2) combined cover 4.26×107 km2. Lake Superior's volume (1.20×104 km3) over 4.26×107 km2 gives a depth of 0.282 m.

المصادر

الهامش

  1. ^ أ ب خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة GLBathSup
  2. ^ خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة GLBathHur
  3. ^ خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة GLOBE
  4. ^ أ ب خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة NOAA_GLERL
  5. ^ خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة Wright73
  6. ^ خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة Regis73
  7. ^ أ ب ت ث Wright, John W., ed. (2006). The New York Times Almanac (2007 ed.). New York: Penguin Books. p. 64. ISBN 0-14-303820-6.
  8. ^ أ ب "Kitchi-Gami Almanac: The Name". LakeSuperior.com. January 1, 2006.
  9. ^ Chisholm, Barbara & Gutsche, Andrea (1998). Under the Shadow of the Gods: A Guide to the History of the Canadian Shore of Lake Superior (1st ed.). Transcontinental Printing.
  10. ^ "Great Lakes Atlas". Environment Canada and United States Environmental Protection Agency. 1995.
  11. ^ Stewart, George R. (1945). "Names on the Land, A Historical Account of Place-Naming in the United States". Geographical Review. 35 (4): 83. Bibcode:1945GeoRv..35..659P. doi:10.2307/210804. JSTOR 210804.
  12. ^ أ ب ت ث "Great Lakes: Basic Information: Physical Facts". United States Environmental Protection Agency. May 25, 2011. Archived from the original on October 29, 2010. Retrieved November 9, 2011.
  13. ^ أ ب ت "Great Lakes Atlas: Factsheet #1". United States Environmental Protection Agency. April 11, 2011. Retrieved November 10, 2011.
  14. ^ Urban, N. R. (2005). "Carbon cycling in Lake Superior". Journal of Geophysical Research (in الإنجليزية). 110 (C6): C06S90. Bibcode:2005JGRC..110.6S90U. doi:10.1029/2003JC002230. ISSN 0148-0227.
  15. ^ أ ب ت Minnesota Sea Grant. "Lake Superior". University of Minnesota. Archived from the original on February 20, 2007. Retrieved August 9, 2007.
  16. ^ Minnesota Sea Grant (October 15, 2014). "Lake Superior's Natural Processes". University of Minnesota. Archived from the original on August 22, 2020. Retrieved November 17, 2015.
  17. ^ "The Fall Storm Season". National Weather Service. Retrieved September 25, 2007.
  18. ^ خطأ: الوظيفة "harvard_core" غير موجودة..
  19. ^ "Lake Superior Hits Record Lows". The Globe and Mail. Toronto. Associated Press. October 1, 2007. Archived from the original on June 10, 2008. Retrieved October 6, 2007.
  20. ^ "Current Great Lakes Water Levels". Great Lakes Information Network. Archived from the original on October 20, 2007. Retrieved October 23, 2007.
  21. ^ أ ب ت ث ج Detroit District (February 2021). Water Level Data. United States Army Corps of Engineers.
  22. ^ Marshall, Jessica (May 30, 2007). "Global Warming Is Shrinking the Great Lakes". New Scientist. Archived from the original on October 13, 2007. Retrieved September 25, 2007.
  23. ^ "Lake Superior Warming Faster than Surrounding Climate". The Globe and Mail. Toronto. Associated Press. June 4, 2007. Archived from the original on April 9, 2007. Retrieved September 25, 2007.
  24. ^ "Statistics". coastwatch.glerl.noaa.gov. Retrieved 2022-07-29.
  25. ^ "Extensive Great Lakes Ice Coverage to Limit Severe Weather, Pose Challenges to Shipping Industry". Accuweather.com. Archived from the original on January 1, 2016. Retrieved November 17, 2015.
  26. ^ Meyers, John (March 16, 2019). "After Achieving 95 Percent Coverage, Lake Superior's Ice Breaking Up". Pioneer Press (in الإنجليزية الأمريكية). St. Paul, Minnesota. Forum News Service. Retrieved September 4, 2019.
  27. ^ "Great Lakes Circle Tour". Great-Lakes.net. Archived from the original on July 25, 2010. Retrieved November 17, 2015.
  28. ^ Phillips, David W. (1978). "Environmental Climatology of Lake Superior". Journal of Great Lakes Research (in الإنجليزية). Vol. 4, no. 3–4. pp. 288–309. doi:10.1016/S0380-1330(78)72199-4.
  29. ^ أ ب Derecki, J. A. (July 1980). "NOAA Technical Memorandum ERL GLERL-29: Evaporation from Lake Superior" (PDF). Great Lakes Environmental Research Laboratory. p. 37. Archived from the original (PDF) on October 24, 2015. Retrieved September 25, 2007.
  30. ^ Harris, Ann G. (1977). Geology of National Parks (2nd ed.). Dubuque, Iowa: Kendall Hunt. p. 200.
  31. ^ Linder, Douglas O. (2006). "'Simply Superior: The World's Greatest Lake' Lake Superior Facts". Law.umkc.edu. Archived from the original on November 5, 2005. Retrieved November 17, 2015.
  32. ^ "Ontario Amethyst: Ontario's Mineral Emblem". Ontario Ministry of Northern Development and Mines. Archived from the original on August 12, 2007. Retrieved August 4, 2007.
  33. ^ خطأ: الوظيفة "harvard_core" غير موجودة..
  34. ^ أ ب خطأ: الوظيفة "harvard_core" غير موجودة..
  35. ^ خطأ: الوظيفة "harvard_core" غير موجودة..
  36. ^ *Palmer, Richard F. (1988). First Steamboat on the Great Lakes (PDF). pp. 7–8.
  37. ^ *Bowen, Dana Thomas (1953). Great Lakes Ships and Shipping (PDF). Minnesota Historical Society. p. 9. Archived from the original (PDF) on July 14, 2020. Retrieved October 28, 2019.
  38. ^ "Paul R. Treggurtha: Last Trip for the Tregurtha This Year". Duluth Shipping News. January 12, 2015. Archived from the original on May 20, 2020. Retrieved January 21, 2015. Another trip here was planned but has apparently been canceled, making this her last and 41st visit this season. Last year, without a late start due to ice, the Tregurtha was here 49 times.
  39. ^ Stonehouse, Frederick (1998) [1985]. Lake Superior's Shipwreck Coast. Gwinn, Michigan: Avery Color Studios. p. 267. ISBN 0-932212-43-3.
  40. ^ "Century-Old Shipwreck Discovered: Ore Carrier Went Down in Lake Superior on Its Second Voyage". NBC News. Associated Press. September 10, 2007.
  41. ^ Kohl, Cris (1998). The 100 Best Great Lakes Shipwrecks. Vol. II. Seawolf Communications. p. 430. ISBN 0-9681437-3-3.
  42. ^ خطأ: الوظيفة "harvard_core" غير موجودة..
  43. ^ MacInnis, Joseph (1998). Fitzgerald's Storm: The Wreck of the Edmund Fitzgerald. Berkeley, California: Thunder Bay Press. p. 101. ISBN 1-882376-53-6.
  44. ^ "Shipwreck hunters stunned by discovery at bottom of world's largest freshwater lake". Independent.co.uk. Retrieved 14 February 2024.
  45. ^ Minnesota Sea Grant. "Lake Superior Fish Species". University of Minnesota. Retrieved June 3, 2009.
  46. ^ Minnesota 2009 fishing regulations. p. 23.[استشهاد ناقص]
  47. ^ Sterner, Robert W.; Anagnostou, Eleni; Brovold, Sandra; Bullerjahn, George S.; Finlay, Jacques C.; Kumar, Sanjeev; McKay, R. Michael L.; Sherrell, Robert M. (2007). "Increasing Stoichiometric Imbalance in North America's Largest Lake: Nitrification in Lake Superior" (PDF). Geophysical Research Letters. Vol. 34, no. 10. pp. L10406. Bibcode:2007GeoRL..3410406S. doi:10.1029/2006GL028861.
  48. ^ خطأ استشهاد: وسم <ref> غير صحيح؛ لا نص تم توفيره للمراجع المسماة pursuit

للاستزادة

  • Burt, Williams A., and Hubbard, Bela Reports on the Mineral Region of Lake Superior (Buffalo: L. Danforth, 1846), 113 pages.
  • Hyde, Charles K., and Ann and John Mahan. The Northern Lights: Lighthouses of the Upper Great Lakes. Detroit: Wayne State University Press, 1995. ISBN 0814325548 ISBN 9780814325544.
  • Oleszewski, Wes, Great Lakes Lighthouses, American and Canadian: A Comprehensive Directory/Guide to Great Lakes Lighthouses, (Gwinn, Michigan: Avery Color Studios, Inc., 1998) ISBN 0-932212-98-0.
  • Penrod, John, Lighthouses of Michigan, (Berrien Center, Michigan: Penrod/Hiawatha, 1998) ISBN 9780942618785 ISBN 9781893624238
  • Penrose, Laurie and Bill, A Traveler’s Guide to 116 Michigan Lighthouses (Petoskey, Michigan: Friede Publications, 1999). ISBN 0923756035 ISBN 9780923756031
  • Sims, P.K. and L.M.H. Carter, eds. Archean and Proterozoic Geology of the Lake Superior Region, U.S.A., 1993 [U.S. Geological Survey Professional Paper 1556]. Washington, D.C.: U.S. Department of the Interior, U.S. Geological Survey, 1996.
  • Splake, T. Kilgore. Superior Land Lights. Battle Creek, MI: Angst Productions, 1984
  • Stonehouse, Frederick. Marquette Shipwrecks. Marquette, MI: Harboridge Press, 1974
  • Wagner, John L., Michigan Lighthouses: An Aerial Photographic Perspective, (East Lansing, Michigan: John L. Wagner, 1998) ISBN 1880311011 ISBN 9781880311011
  • Wright, Larry and Wright, Patricia, Great Lakes Lighthouses Encyclopedia Hardback (Erin: Boston Mills Press, 2006) ISBN 1550463993
حطام سفن
  • "America"; Houghton, Michigan; Houghton Mining Gazette; Vol. 29; June 8, 1928
  • Stonehouse, Frederick; Isle Royale Shipwrecks; Marquette, Michigan; Arery Color Studios; 1977
  • "Cumberland" & "Wreck of Sidewheel Steamer Cumberland"; Detroit, Michigan; Detroit Free Press; January 29, 1974
  • "S.S.George M. Cox Wrecked"; Houghton, Michigan; Houghton Mining Gazette; May 28, 1933
  • Holdon, Thom "Reef of the Three C's"; Duluth, Minnesota; Lake Superior Marine Museum; Vol. 2, #4; July/August 1977
  • Holdon, Thom; "Above and Below: Steamer America"; Duluth, Minnesota; Lake Superior Marine Museum; Vol. 3, #3 & #4; May/June & July/August 1978

وصلات خارجية

مشاع المعرفة فيه ميديا متعلقة بموضوع [[commons: Category:Lake Superior

| Lake Superior

]].
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