are the great lakes like an oceandavid w carter high school yearbook
[89] The International Joint Commission in 2009 summarized the change: "Since the early 1970s, the level of treatment to reduce pollution from waste water discharges to the Great Lakes has improved considerably. Connect and share knowledge within a single location that is structured and easy to search. Both the province of Ontario and the state of Michigan include in their boundaries portions of four of the lakes: The province of Ontario does not border Lake Michigan, and the state of Michigan does not border Lake Ontario. [66] The population of giant freshwater mussels was eliminated as the mussels were harvested for use as buttons by early Great Lakes entrepreneurs. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The names bodies of water have are historical, so what they are called is down to what somebody saw fit to call them in the past - not any modern taxonomy. New York and Wisconsin's jurisdictions extend into two lakes, and each of the remaining states into one of the lakes. The prevailing winds from the west pick up the air and moisture from the lake surface, which is slightly warmer in relation to the cold surface winds above. janetcbl. [92], Researchers have found more than 22million pounds (10.0kt) of plastic in the Great Lakes each year. Concern over the fate of the lakes reached a high pitch in the late 20th century, with both the U.S. and the Canadian governments and individuals investigating methods for reversing the consequences of years of misuse of the lakes waters. A similar phenomenon allows wineries to flourish in the Finger Lakes region of New York, as well as in Prince Edward County, Ontario, on Lake Ontario's northeast shore. "Sea" versus "lake" versus "just part of the ocean" is a bit fuzzy, but there are two things that are universal about seas: Now, let's see how the Great Lakes look under these criteria. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. [14], Intensive human population growth began in the region in the 20th century and continues today. "Meer"). [63], On both sides of the CanadaUnited States border, the proliferation of dams and impoundments have multiplied, necessitating more regulatory efforts. Please refer to the appropriate style manual or other sources if you have any questions. Fish and Wildlife Service estimated in 2007 that the economic impact of the zebra mussel could be about $5billion over the next decade. Roads closed because of Croatan National Forest fire Because the lake maritime community largely developed independently, it has some distinctive vocabulary. While the influx of fresh water has driven the salinity relatively low compared to the oceans, the sea now only loses water through evaporation - so there's no way for the (tiny amounts) of incoming salts and (relatively large amounts) of sediment to go. The Greatest Lakes The largest lake in the world by a long shot is the Caspian Sea - a name that hints at a past when it was contiguous with the ocean around 11 million years ago. 69-77. The East Antarctic Ice cap OTOH has about 60m of sea level rise in it; roughtly double what'd be needed to flood the Caspian basin. As the ice retreat continued, Lake Maumee was drained into Lake Chicago through a valley that now contains the Grand River in Michigan. They are one of the great natural features of the continent and of the Earth. @Sean Humans might be able of doing a lot of things, yes. 2. Surrounding the Great Salt Lake are salt flats, areas where the lake has evaporated, leaving only stretches of white salt. Its range, which has expanded to Lake Huron, poses a significant threat to the lower lake fishery. Moreover, between 1879 and 1899, reported whitefish harvests declined from some 24.3million pounds (11millionkg) to just over 9million pounds (4millionkg). The rasping mouth of the sea lamprey, an infamous Great Lakes invader. As shown in the elevation profile below, Lake Ontario is the lowest in elevation, 243 feet above sea level; Lake Superior breaks 600 feet. Except for Lake Michigan, the lakes provide a natural border between Canada and the United States, a frontier that was stabilized by a boundary-waters treaty of 1909. "@mswann82 @gavinbena Have you ever actually been to the great lakes? The Great Lakes receive their water supply from precipitation, which increases from west to east and from north to south. Early European settlers were astounded by both the variety and quantity of fish; there were 150 different species in the Great Lakes. Will the Great Lakes Rise With Sea Level? - John Englander By the mid-1980s, most jurisdictions bordering the Great Lakes had controlled phosphate detergents. In the early 21st century, Lake Superior's shores are 91% forested, Lake Huron 68%, Lake Ontario 49%, Lake Michigan 41%, and Lake Erie, where logging and urbanization has been most extensive, 21%. The Great Lakes are connected by the Chicago Sanitary and Ship Canal to the Gulf of Mexico via the Illinois River (from the Chicago River) and the Mississippi River. The dissolved salt makes the water denser, and because it is denser than the water around it, it will settle into the . In 2007, the Great Lakes Shipwreck Historical Society announced that it had found the wreckage of Cyprus, a 420-foot (130m) long, century-old ore carrier. Storm-generated waves carve the lakes' ice sheet and create conical mounds through the eruption of water and slush. [32] Larger ships are confined to working within the lakes. They are in a place where rifting started to create a new ocean, but it never got connected to the ocean system (and flooded), and that was still the case when the rifting eventually stopped. rev2023.4.21.43403. While enormous public investments such as the Deep Tunnel projects in Chicago and Milwaukee have greatly reduced the frequency and volume of these events, they have not been eliminated. It is 350 miles (563 km) long (east to west), and at its greatest width it is 160 miles (258 km) from north to south. [51] The Great Lakes coast measures approximately 10,500 miles (16,900km);,[14] but the length of a coastline is impossible to measure exactly and is not a well-defined measure. Barges from middle North America were able to reach the Atlantic Ocean from the Great Lakes when the Welland Canal opened in 1824 and the later Erie Canal opened in 1825. [93] Plastics in the water break up into very small particles known as microplastics. The domestic bulk freight developed because of the nearby mines. Related to the lake effect is the regular occurrence of fog, particularly along the shorelines of the lakes. This is a laker with a conveyor belt system that can unload itself by swinging a crane over the side. Those rifts were then further (much later) "excavated" by glaciers. gulf, Endorheic? [14], A notable modern phenomenon is the formation of ice volcanoes over the lakes during wintertime. As a chain of lakes and rivers, they connect the east-central interior of North America to the Atlantic Ocean. Not surprising that the Great Lakes are considered lakes, not seas. [29] Both of these islands are large enough to contain multiple lakes themselvesfor instance, Manitoulin Island's Lake Manitou is the world's largest lake on a freshwater island. The Wisconsin Fisheries Commission noted a reduction of roughly 25% in general fish harvests by 1875. Lakes and Reservoirs | U.S. Geological Survey [5] Depending on how it is measured, by surface area, either Lake Superior or Lake Michigan-Huron is the second-largest lake in the world and the largest freshwater lake. They protect against frost during transitional weather and keep the summertime temperatures cooler than further inland. Page not found Instagram [107] Today, the Great Lakes fleet is much smaller in numbers than it once was because of the increased use of overland freight, and a few larger ships replacing many small ones. Tourism and recreation are major industries on the Great Lakes. "[62] Water quality improvements realized during the 1970s and 1980s, combined with successful salmonid stocking programs, have enabled the growth of a large recreational fishery. Marine debris. The creeping threat of the Great Atlantic Sargassum Belt Map of the Great Lakes - Geology But many species remain a mystery", Recovery of Lake Erie Walleye a Success Story, Historical Perspecivie Of The Phosphate Detergent Conflict, "Large Lake Erie algal bloom nearing Colchester tested for toxicity", "Lake Erie Water Quality Past Present and Future", "14th Biennial Report on Great Lakes Water Quality", New Report: Solving Region's Sewage Crisis Will Create Jobs, Restore Great Lakes, "Antidepressants are finding their way into fish brains", "U of T researchers discover microplastics in all samples of Great Lakes fish", "Industrial plastic is spilling into Great Lakes, and no one's regulating it, experts warn", "How a fleet of robots could help solve the Great Lakes plastic pollution problem", "Monitoring algal blooms in the Great Lakes Basin", "Evidence for early hunters beneath the Great Lakes", "Great Lakes Fleet Page Vessel Feature Burns Harbor", Lake Champlain, The Sixth Great Lake? Also note that Ontario is separated from Erie (and hence the upper lakes) by the Niagara River and a 167 ft/51 m waterfall. The weight of the ice sheet exerted enormous pressures on the Earths crust. Great Lakes, chain of deep freshwater lakes in east-central North America comprising Lakes Superior, Michigan, Huron, Erie, and Ontario. Ocean pollution and marine debris | National Oceanic and Atmospheric Nonetheless, both nations maintained coast guard vessels in the Great Lakes. For the African Great Lakes, see, Large bays and related significant bodies of water, "Evolution of the Great Lakes Water Quality Agreement", Paul Muldoon and Lee Botts, Michigan State University Press, 2005, Burkhardt Steffen, Amoroso Gabi, Riebesell Ulf, Sltemeyer Dieter, (2001), CO. Brian N. Popp, Edward A. [10] The lakes have been a major source for transportation, migration, trade, and fishing, serving as a habitat to many aquatic species in a region with much biodiversity. @jamesqf it would take melting the East Antarctic ice shelf (the big stable one). The lakes are prone to sudden and severe storms, in particular in the autumn, from late October until early December. In the early 19th century, the government of Upper Canada found it necessary to introduce similar legislation prohibiting the use of weirs and nets at the mouths of Lake Ontario's tributaries.
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