|
Draget Canal
Draget Canal () is a Swedish canal in the municipality of Nynäshamn, county of Stockholm and province of Södermanland. Together with other natural channels, it provides a route between the ports of Nynäshamn and Södertälje avoiding the requirement to pass offshore of Landsort, although today it is only used by leisure craft. History In the 13th century, when the water level then was three meters higher than today,Much of Sweden was covered with a thick ice sheet during the last ice age; the great weight depressed the land. The land is still rebounding from the enormous weight of the ice (isostatic rebound), "growing out of the sea" several mm each year. This is a slow process; as a result the sea formerly covered substantial areas of what is today dry land. Draget was a strait between the island of Järflotta and the mainland. It was passable by sailing vessels, and the passage was documented by Valdemar Sejr, who passed through the strait on the way to his crusade in E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sjöfartsverket
The Swedish Maritime Administration () is the Government agencies in Sweden, government agency in Sweden which provides services to the transport sector by keeping the sea lanes open and safe. The agency is to a certain degree financed through fees levied on commercial shipping. The main services of the Maritime Administration include: pilotage, maintenance of marine Fairway (navigation), fairways, ice-breaking, Hydrographic survey, hydrographics, maritime search and rescue, seamen's service. It also maintains the lighthouses and other aids to navigation of Sweden. Until 1 January 2009, it also was responsible for maritime safety inspection. Seagoing vessels navigating the Baltic Sea must meet certain ice class requirement. While its mainly deals with merchant shipping, other maritime activities are also taken into account. Sjöfartsverket runs the Joint Rescue Center Gothenburg. See also * List of lighthouses and lightvessels in Sweden * P2 – Svenskt Vrakskydd * Sea traffic m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Age
An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages, and greenhouse periods during which there are no glaciers on the planet. Earth is currently in the ice age called Quaternary glaciation. Individual pulses of cold climate within an ice age are termed '' glacial periods'' (''glacials, glaciations, glacial stages, stadials, stades'', or colloquially, ''ice ages''), and intermittent warm periods within an ice age are called '' interglacials'' or ''interstadials''. In glaciology, the term ''ice age'' is defined by the presence of extensive ice sheets in the northern and southern hemispheres. By this definition, the current Holocene epoch is an interglacial period of an ice age. The accumulation of anthropogenic greenhouse gases is projected to delay the next glacial period. History of research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medieval
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of World history (field), global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early Middle Ages, Early, High Middle Ages, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralised authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crusade
The Crusades were a series of religious wars initiated, supported, and at times directed by the Papacy during the Middle Ages. The most prominent of these were the campaigns to the Holy Land aimed at reclaiming Jerusalem and its surrounding territories from Muslim rule. Beginning with the First Crusade, which culminated in the Siege of Jerusalem (1099), capture of Jerusalem in 1099, these expeditions spanned centuries and became a central aspect of European political, religious, and military history. In 1095, after a Byzantine request for aid,Helen J. Nicholson, ''The Crusades'', (Greenwood Publishing, 2004), 6. Pope Urban II proclaimed the first expedition at the Council of Clermont. He encouraged military support for List of Byzantine emperors, Byzantine emperor Alexios I Komnenos, AlexiosI Komnenos and called for an armed pilgrimage to Jerusalem. Across all social strata in Western Europe, there was an enthusiastic response. Participants came from all over Europe and had a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valdemar Sejr
Waldemar, Valdemar, Valdimar, or Woldemar is an Old High German given name. It consists of the elements ''wald-'' "power", "brightness" and ''-mar'' "fame". The name is considered the equivalent of the Latvian name Valdemārs, the Estonian name Voldemar, and the Slavic names Vladimir, Volodymyr, Uladzimir or Włodzimierz. The Old Norse form ''Valdamarr'' (also ''Valdarr'') occurs in the Guðrúnarkviða II as the name of a king of the Danes. The Old Norse form is also used in Heimskringla, in the story of Harald Hardrada, as the name of a ruler of Holmgard (Veliky Novgorod).Alison Finlay (2004). ''Fagrskinna: A Catalogue of the Kings of Norway''. Brillp. 236 The ''Fagrskinna'' kings' sagas also have ''Valdamarr'', in reference to both Vladimir the Great and Vladimir Yaroslavovich. People with the name include: Royalty :''Ordered chronologically'' * Valdemar I of Denmark or Waldemar the Great (1131–1182), King of Denmark * Valdemar of Denmark (bishop) (1157/1158–1235 or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Järflotta
Järflotta is an island in Stockholm archipelago, approximately south of Nynäshamn. Once separated from the mainland by a natural sound, this navigable route was rendered unusable in more modern times by post-glacial rebound and has been replaced by the artificial Draget Canal. The island is a nature reserve. Nature reserve Järflotta is a flat island which covers about . The entire island, as well as some outlying islands, constitute a nature reserve which in total covers around , including water. Most of the island consists of a sandy heath and Scots pine forest. Only the central part of the island contains arable land. Unusually for Stockholm County, the island has several sandy beaches which are a habitat for a number of red listed plants. The islands surrounding Järflotta, especially Gunnarshögarna, are also included in the nature reserve and support important habitats for birds such as Caspian tern, razorbill, black guillemot and common murre. The explicit purpose of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strait
A strait is a water body connecting two seas or water basins. The surface water is, for the most part, at the same elevation on both sides and flows through the strait in both directions, even though the topography generally constricts the flow somewhat. In some straits there is a dominant directional current. Most commonly, the strait is a narrowing channel that lies between two land masses. Straits are loci for sediment accumulation, with sand-size deposits usually occurring on the two strait exits, forming subaqueous fans or deltas. Some straits are not navigable because, for example, they are too narrow or too shallow, or because of an unnavigable reef or archipelago. Terminology The terms '' channel'', ''pass'', or ''passage'' can be synonymous and used interchangeably with ''strait'', although each is sometimes differentiated with varying senses. In Scotland, '' firth'' or ''Kyle'' are also sometimes used as synonyms for strait. Many straits are economically impor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isostatic Rebound
Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the removal of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression. Post-glacial rebound and isostatic depression are phases of glacial isostasy (glacial isostatic adjustment, glacioisostasy), the deformation of the Earth's crust in response to changes in ice mass distribution. The direct raising effects of post-glacial rebound are readily apparent in parts of Northern Eurasia, Northern America, Patagonia, and Antarctica. However, through the processes of ''ocean siphoning'' and ''continental levering'', the effects of post-glacial rebound on sea level are felt globally far from the locations of current and former ice sheets.Milne, G.A., and J.X. Mitrovica (2008) ''Searching for eustasy in deglacial sea-level histories.'' Quaternary Science Reviews. 27:2292–2302. Overview During the last glacial period, much of northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Sheet
In glaciology, an ice sheet, also known as a continental glacier, is a mass of glacier, glacial ice that covers surrounding terrain and is greater than . The only current ice sheets are the Antarctic ice sheet and the Greenland ice sheet. Ice sheets are bigger than ice shelf, ice shelves or alpine glaciers. Masses of ice covering less than 50,000 km2 are termed an ice cap. An ice cap will typically feed a series of glaciers around its periphery. Although the surface is cold, the base of an ice sheet is generally warmer due to Geothermal activity, geothermal heat. In places, melting occurs and the melt-water lubricates the ice sheet so that it flows more rapidly. This process produces fast-flowing channels in the ice sheet — these are ice streams. Even stable ice sheets are continually in motion as the ice gradually flows outward from the central plateau, which is the tallest point of the ice sheet, and towards the margins. The ice sheet slope is low around the plate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sweden
Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic country by both area and population, and is the List of European countries by area, fifth-largest country in Europe. Its capital and largest city is Stockholm. Sweden has a population of 10.6 million, and a low population density of ; 88% of Swedes reside in urban areas. They are mostly in the central and southern half of the country. Sweden's urban areas together cover 1.5% of its land area. Sweden has a diverse Climate of Sweden, climate owing to the length of the country, which ranges from 55th parallel north, 55°N to 69th parallel north, 69°N. Sweden has been inhabited since Prehistoric Sweden, prehistoric times around 12,000 BC. The inhabitants emerged as the Geats () and Swedes (tribe), Swedes (), who formed part of the sea-faring peopl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landsort
Landsort () is a Swedish village with a lighthouse on the island of Öja. The village has around 30 permanent residents. The tower was built in 1689, with an upper conical iron section added in 1870. Open fires, serving as beacons, have been lit at the site since early times. Landsort is the southernmost point of the Stockholm archipelago. Lighthouse The first lighthouse in the modern sense was lit in 1651 and, until the current tower was raised, a couple of different buildings were used to support the light. The tower of 1689 was constructed to carry an open fire, which burned coal. In 1840, a colza oil lamp was installed. A flame consumed paraffin from 1887 but in 1938 the beacon was electrified. Today the Swedish Maritime Administration owns and runs the lighthouse. During World War II and the Cold War, Landsort was a military base for the Swedish Coastal Artillery. Climate The Swedish weather service SMHI operates a meteorological station at Landsort. The southern end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Södertälje
Södertälje ( , ) is a Urban areas in Sweden, city in Stockholm County, Sweden and seat of Södertälje Municipality. It is also a part of Stockholm urban area, Greater Stockholm Metropolitan Area. As of 2020, it has 73,872 inhabitants. Södertälje is located at Mälarens confluence in to the Baltic Sea through the lock in the Södertälje Canal.Nationalencyklopedin, Södertälje. http://www.ne.se/uppslagsverk/encyklopedi/lång/södertälje-(tätort-södertälje-kommun) (hämtad 2020-06-13) Since year 2000, it is the largest Urban areas in Sweden, city located entirely within the province of Södermanland. History Ancient history It is estimated that the first people reached the area around what is today Södertälje during the Stone Age, about 4000 BC. They formed settlements around 3000 BC, when the peasant culture is believed to have reached the area.Svartsjö, Christina 2004, ''Centrumförnyelse i Södertälje - utopi eller verklighet!''. Blekinge tekniska högskola Around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
