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Coastline Of The North Sea
The coastline of the North Sea has been evolving since the end of the last ice age. The coastline varies from fjords, river estuaries to mudflats. The eastern and western coasts of the North Sea are jagged, as they were stripped by glaciers during the ice ages. The coastlines along the southernmost part are soft, covered with the remains of deposited glacial sediment, which was left directly by the ice or has been redeposited by the sea. The Norwegian mountains plunge into the sea, giving rise, north of Stavanger, to deep fjords and archipelagos. South of Stavanger, the coast softens, the islands become fewer. The eastern Scottish coast is similar, though less severe than Norway. Starting from Flamborough Head in the north east of England, the cliffs become lower and are composed of less resistant moraine, which erodes more easily, so that the coasts have more rounded contours. In the Netherlands, Belgium and in the east of England (East Anglia) the littoral is low and marshy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firth
Firth is a word in the English and Scots languages used to denote various coastal waters in the United Kingdom, predominantly within Scotland. In the Northern Isles, it more usually refers to a smaller inlet. It is linguistically cognate to ''fjord'' (both from Proto-Germanic *''ferþuz''), which has a more constrained sense in English. Bodies of water named "firths" tend to be more common on the Scottish east coast, or in the southwest of the country, although the Firth of Clyde is an exception to this. The Highland coast contains numerous estuaries, straits, and inlets of a similar kind, but not called "firth" (e.g. the Minch and Loch Torridon); instead, these are often called sea lochs. Before about 1850, the spelling "Frith" was more common. A firth is generally the result of ice age glaciation and is very often associated with a large river, where erosion caused by the tidal effects of incoming sea water passing upriver has widened the riverbed into an estuary. Demarcation c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Range
Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun and the rotation of Earth. Tidal range depends on time and location. Larger tidal range occur during spring tides (spring range), when the gravitational forces of both the Moon and Sun are aligned (at syzygy), reinforcing each other in the same direction ( new moon) or in opposite directions (full moon). The largest annual tidal range can be expected around the time of the equinox if it coincides with a spring tide. Spring tides occur at the second and fourth (last) quarters of the lunar phases. By contrast, during neap tides, when the Moon and Sun's gravitational force vectors act in quadrature (making a right angle to the Earth's orbit), the difference between high and low tides (neap range) is smallest. Neap tides occur at the first and third quarters of the lunar phases. Tidal data for coastal ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frisian Islands
The Frisian Islands, also known as the Wadden Islands or the Wadden Sea Islands, form an archipelago at the eastern edge of the North Sea in northwestern Europe, stretching from the northwest of the Netherlands through Germany to the west of Denmark. The islands shield the mudflat region of the Wadden Sea (large parts of which fall dry during low tide) from the North Sea. The Frisian Islands, along with the mainland coast in the German Bight, form the region of Frisia (German and Dutch: ''Friesland''), homeland of the Frisian people. Generally, the term Frisian Islands is used for the islands where Frisian languages, Frisian is spoken and the population is ethnically Frisian. In contrast, the term Wadden Islands applies to the entire archipelago, including the Dutch language, Dutch-speaking westernmost islands of Texel and Vlieland and Danish language, Danish-speaking Danish Wadden Sea Islands further north off the west coast of Jutland. Most of the Frisian Islands are environment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IJsselmeer
The IJsselmeer (; fy, Iselmar, nds-nl, Iesselmeer), also known as Lake IJssel in English, is a closed off inland bay in the central Netherlands bordering the provinces of Flevoland, North Holland and Friesland. It covers an area of with an average depth of . The river IJssel flows into the IJsselmeer. History Two thousand years ago Pomponius Mela, a Roman geographer, mentioned a complex of lakes at the current location of the IJsselmeer. He called it ''Lacus Flevo''. Over the centuries, the lake banks crumbled away due to flooding and wave action and the lake, now called the Almere, grew considerably. During the 12th and 13th centuries, storm surges and rising sea levels flooded large areas of land between the lake and the North Sea, turning the lake into a bay of the North Sea, called the Zuiderzee. The Zuiderzee continued to be a threat to the Dutch, especially when northwesterly storms funnel North Sea waters towards the English Channel, creating very high tides along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Den Helder
Den Helder () is a municipality and a city in the Netherlands, in the province of North Holland. Den Helder occupies the northernmost point of the North Holland peninsula. It is home to the country's main naval base. From here the Royal TESO ferryboat service operates the transportation link between Den Helder and the nearby Dutch Wadden island of Texel to the north. Etymology Before the year 1928 the official name of Den Helder was Helder. The origin of the name Helder is not entirely clear. The name Helder may have come from ''Helle/Helde'', which means "hill" or "hilly grounds", or from ''Helre'', which means a sandy ridge. Another explanation is that the name derived from ''Helsdeur'' (Hell's Door), likely because in the water between Den Helder and Texel (called Marsdiep) the current was so strong that many ships were lost. History Huisduinen was the original older part of the city, whereas Helder itself was a nearby smaller hamlet. When a harbour was built near Hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esbjerg
Esbjerg (, ) is a seaport town and seat of Esbjerg Municipality on the west coast of the Jutland peninsula in southwest Denmark. By road, it is west of Kolding and southwest of Aarhus. With an urban population of 71,698 (1 January 2022)BY3: Population 1. January by urban areas, area and population density The Mobile Statbank from it is the fifth-largest city in Denmark, and the largest in West Jutland. Before a decision was made to establish a (now the second largest in Denmark) at Esbjerg in 1868 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Flats
Mudflats or mud flats, also known as tidal flats or, in Ireland, slob or slobs, are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. A global analysis published in 2019 suggested that tidal flat ecosystems are as extensive globally as mangroves, covering at least of the Earth's surface. / They are found in sheltered areas such as bays, bayous, lagoons, and estuaries; they are also seen in freshwater lakes and salty lakes (or inland seas) alike, wherein many rivers and creeks end. Mudflats may be viewed geologically as exposed layers of bay mud, resulting from deposition of estuarine silts, clays and aquatic animal detritus. Most of the sediment within a mudflat is within the intertidal zone, and thus the flat is submerged and exposed approximately twice daily. A recent global remote sensing analysis estimated that approximately 50% of the global extent of tidal flats occurs within eight countries (Indonesia, China, Austral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zandvoort Aan Zee (19)
Zandvoort () is a municipality in the province of North Holland, Netherlands. It is one of the major beach resorts of the Netherlands; it has a long sandy beach. It is bordered by coastal dunes of Zuid-Kennemerland National Park and the Amsterdam water supply dunes. It hosts the country's most prominent motor racing circuit, Circuit Zandvoort. The municipality of extends to take in Bentveld; it had a population of 16,954 in 2017. A nudist bathing section of the beach begins about 2 km to the south, with six eateries, which extends kilometers further. History Zandvoort is known to exist in 1100, called ''Sandevoerde'' (a combination of "sand" and "''voorde''", meaning ford; compare English '' Sandford''). Until 1722 the area was under the control of the Lords of Brederode. The village was dependent on fishing for many centuries until the 19th century when it started to transform itself into a seaside resort, following the pattern set by similar towns in the United Kingd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skerry
A skerry is a small rocky island, or islet, usually too small for human habitation. It may simply be a rocky reef. A skerry can also be called a low sea stack. A skerry may have vegetative life such as moss and small, hardy grasses. They are often used as resting places by animals such as seals and birds. Etymology The term ''skerry'' is derived from the Old Norse ', which means a rock in the sea (which in turn derives from the Proto-Indo-European root *''sker''-, "cut", in the sense of a rock cut off from the land). The Old Norse term ' was brought into the English language via the Scots language word spelled or . It is a cognate of the Scandinavian languages' words for ''skerry'' – Icelandic, fo, sker, da, skær, sv, skär, no, skjær / skjer, found also in german: Schäre, fi, kari, et, skäär, lv, šēra, lt, Šcheras and russian: шхеры (). In Scottish Gaelic, it appears as ', e.g. Sula Sgeir, in Irish as '','' in Welsh as '','' and in Manx as ''.'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2004 07 31-L51 Ubt
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically three. The sum of the first four prime numbers two + three + five + seven is the only sum of four consecutive prime numbers that yields an odd prime number, seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, three and five, which are the first two Fermat primes, like seventeen, which is the third. On the other hand, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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