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Vuoksi Basin
The Vuoksi (, historically: "Uzerva"; ; ; ) is a river running through the northernmost part of the Karelian Isthmus from Lake Saimaa in southeastern Finland to Lake Ladoga in northwestern Russia. The river enters Lake Ladoga in three branches, an older main northern branch at Priozersk (Käkisalmi), a smaller branch a few kilometers to the north of it, and a new southern branch entering further southeast as Burnaya River (Finnish: Taipaleenjoki), which has become the main stream in terms of water discharge. Since 1857, the old northern distributaries drain only the lower reaches of the Vuoksi basin and are not fed by Lake Saimaa. The northern and southern branches actually belong to two separate river systems, which at times get isolated from each other in dry seasons. The descent between Lake Saimaa and Lake Ladoga is . The entire run of the river is via the Priozersk branch, or via the Taipale (Burnaya) branch. It has a drainage basin of . For most of its length, the river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Saimaa
Saimaa ( , ; ) is a lake located in the Finnish Lakeland area in southeastern Finland. With a surface area of approximately , it is the largest lake in Finland, and the fourth-largest natural freshwater lake in Europe. The name Saimaa likely comes from a non-Uralic, non-Indo European substrate language. Alternatively, it has been proposed that the name may be connected to the Sami word ''sápmi''. History The lake was formed by glacial melting at the end of the Ice Age. Major towns on the lakeshore include Lappeenranta, Imatra, Savonlinna, Mikkeli, Varkaus, and Joensuu. About 6,000 years ago, ancient Lake Saimaa, estimated to cover nearly at the time, was abruptly discharged through a new outlet. The event created thousands of square kilometres of new residual wetlands. Following this event, the region saw a population maximum in the decades following only to later return to an ecological development towards old boreal conifer forests which saw a decline in population. To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuation War
The Continuation War, also known as the Second Soviet–Finnish War, was a conflict fought by Finland and Nazi Germany against the Soviet Union during World War II. It began with a Finnish declaration of war on 25 June 1941 and ended on 19 September 1944 with the Moscow Armistice. The Soviet Union and Finland had previously fought the Winter War from 1939 to 1940, which ended with the Soviet failure to conquer Finland and the Moscow Peace Treaty. Numerous reasons have been proposed for the Finnish decision to invade, with regaining territory lost during the Winter War regarded as the most common. Other justifications for the conflict include Finnish President Risto Ryti's vision of a Greater Finland and Commander-in-Chief Carl Gustaf Emil Mannerheim's desire to annex East Karelia. The following paragraph contains a bundle of cites for the Finnish participation in the siege of Leningrad, which is a commonly debated complex issue in the article (see talk).--> On 22 June 1941 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canoe
A canoe is a lightweight, narrow watercraft, water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using paddles. In British English, the term ''canoe'' can also refer to a kayak, whereas canoes are then called Canadian (canoe), Canadian or open canoes to distinguish them from kayaks. However, for official competition purposes, the American distinction between a kayak and a canoe is almost always adopted. At the Olympics, both conventions are used: under the umbrella terms Canoe Slalom and Canoe Sprint, there are separate events for canoes and kayaks. Culture Canoes were developed in cultures all over the world, including some designed for use with sails or outriggers. Until the mid-19th century, the canoe was an important means of transport for exploration and trade, and in some places is still used as such, sometimes with the addition of an outboard motor. Where the canoe play ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayak
] A kayak is a small, narrow human-powered watercraft typically propelled by means of a long, double-bladed paddle. The word ''kayak'' originates from the Inuktitut word '' qajaq'' (). In British English, the kayak is also considered to be a kind of canoe. There are countless different types of kayaks due to the craft being easily adaptable for different environments and purposes. The traditional kayak has an enclosed deck and one or more cockpits, each seating one occupant or kayaker, differentiating the craft from an open-deck canoe. The cockpit is sometimes covered by a spray deck that prevents unwanted entry of water from waves or splashes. Even within these confines, kayaks vary vastly in respect to materials, length, and width, with some kayaks such as the sprint kayak designed to be fast and light, and others such as the whitewater kayak designed to be sturdy and maneuverable. Some modern paddlecrafts, which still claim the title "kayak", remove integral parts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Sukhodolskoye
Lake Sukhodolskoye (; ) is a narrow 40 km long lake on the Karelian Isthmus located in Priozersky District of Leningrad Oblast, Russia. It is a part of the Vuoksi River basin, constituting its southern armlet, and drained by Burnaya River. Originally waters of the lake flowed into the Vuoksi through a waterway at Kiviniemi. However, in 1818 the channel that had been dug to drain spring flood waters from the lake into Lake Ladoga unexpectedly turned into Taipaleenjoki (Burnaya River), which started draining the lake itself and decreased its level by 7 m. The Kiviniemi waterway dried out. In 1857 a channel was dug there, but the stream reversed direction, revealed rapids and rendered navigation at Kiviniemi impossible. Since 1857 Lake Sukhodolskoye and Burnaya River have constituted the southern armlet of Vuoksi River, which has decreased the level of the original northern armlet flowing through Priozersk by 4 m. Archaeology In the late 19th and early 20th centuries, st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Losevo, Leningrad Oblast
Losevo (; ) is a rural locality (a station settlement) in Priozersky District, Leningrad Oblast, located at the junction of Vuoksi River and Lake Sukhodolskoye on Karelian Isthmus The Karelian Isthmus (; ; ) is the approximately stretch of land situated between the Gulf of Finland and Lake Ladoga in northwestern Russia, to the north of the River Neva. Its northwestern boundary is a line from the Bay of Vyborg to the we .... It is a train station, railway station of the Saint Petersburg–Khiytola railroad. Before the Winter War and Continuation War, it was a village of the Sakkola municipality of Finland known as Kiviniemi. Originally waters of Lake Sukhodolskoye quietly flowed into Vuoksi, but in 1818, as Burnaya River had emerged and started draining Sukhodolskoye into Lake Ladoga, the level of the former decreased dramatically by and the waterway connecting it to Vuoksi dried out. In 1857, the channel was dug, but the stream reversed direction, revealed rapids, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imatrankoski
Imatrankoski (The Imatra Rapids) are rapids on the Vuoksi in Imatra, Finland. It has been a famous tourist attraction since the late 1700s. Imatrankoski is also one of the National landscapes of Finland. Since 1929, the rapids has been blocked by a dam as the Imatra hydroelectric plant began operation. Today, the dam is opened daily between June and August (Wednesday to Sunday, at 18:00) as well as on Christmas Day and New Year's Eve.Imatrankoski rapids Go Saimaa. Retrieved 7 March 2015.Imatrankoski Atlas Obscura. Retrieved 7 March 2015. Geological history The Vuoksi and Imatrankoski were born about 5, ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapids
Rapids are sections of a river where the river bed has a relatively steep stream gradient, gradient, causing an increase in water velocity and turbulence. Flow, gradient, constriction, and obstacles are four factors that are needed for a rapid to be created. Physical factors Rapids are hydrology, hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''waterfall#Types, cascade''. Rapids are characterized by the river becoming shallower with some Rock (geology), rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white color, forming what is called "whitewater". Rapids occur where the stream bed, bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length. Rapids cause water aeration of the stream ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Petersburg
Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of 5,601,911 residents as of 2021, with more than 6.4 million people living in the Saint Petersburg metropolitan area, metropolitan area. Saint Petersburg is the List of European cities by population within city limits, fourth-most populous city in Europe, the List of cities and towns around the Baltic Sea, most populous city on the Baltic Sea, and the world's List of northernmost items#Cities and settlements, northernmost city of more than 1 million residents. As the former capital of the Russian Empire, and a Ports of the Baltic Sea, historically strategic port, it is governed as a Federal cities of Russia, federal city. The city was founded by Tsar Peter the Great on 27 May 1703 on the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korela Fortress
Korela Fortress (; ; ) is a medieval fortress in the town of Priozersk, Leningrad Oblast, Russia. Origin The original fortification was built by Karelians but the castle seen today is from Middle Ages, medieval times. It was first mentioned in a Novgorodian chronicle of 1143 as ''Korela'', and archaeological digs have revealed a layer belonging to the 12th century. Sweden, Swedish chronicles first reported of the settlement of ''Keksholm'' in 1294. Until the 16th century, the fortress belonged to the Novgorod Republic, followed by Grand Duchy of Moscow, Muscovy. Novgorodians built the current stone bastions and towers in 1364 after a fire had destroyed the original wooden fortress in 1360. During a Swedish-Novgorodian war in 1314, a small Karelian force re-captured their fortress from the representatives of Novgorod. They invited Swedes to keep it against Novgorod; however, the Novgorodians reconquered the fortress. The fortress was confirmed as belonging to Novgorod in the trea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imatra
Imatra is a city in Finland, located in the southeastern interior of the country. Imatra is located in the region of South Karelia, on Saima, Lake Saimaa and the River Vuoksi. The population of Imatra is approximately , while the Imatra sub-region, sub-region has a population of approximately . It is the most populous Municipalities of Finland, municipality in Finland. Imatra lies on the Finland–Russia border, border with Russia. On the other side of the border, away from the centre of Imatra, lies the Russian town of Svetogorsk. The city of Saint Petersburg, St. Petersburg is situated to the southeast, the Finnish capital Helsinki is away and Lappeenranta, the nearest Finnish city, is away. The main employers are the pulp and paper manufacturer Stora Enso, Stora Enso Oyj, the City of Imatra, the engineering steel manufacturer Ovako Bar Oy Ab and the Finnish Border Guard. , the total number of employees was 12,423. , 1,868 people were employed by the City of Imatra. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
