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Ayre (landform)
An ayre is the name used for shingle beaches found in Orkney, Shetland, the Isle of Man, Lancashire, Cumbria and Northumbria. The word is derived from the Old Norse ''eyrr'', meaning a shingle beach or gravelly place, and may be applied to ordinary beaches, cliff-foot beaches such as the Lang Ayre in Northmavine, Shetland, spits, bars or tombolos, but only if formed of shingle. More than 130 such shingle beaches are named on Ordnance Survey maps of Shetland, but far fewer in Orkney, where most beaches are formed of sand. The word in its Old Norse form is common in Iceland, and it also occurs in a few place names in the north and west of the Scottish mainland which had a strong Norse influence, such as Eriboll ("a homestead on a shingle beach") and in the names of several shingle banks—Salt Ayre, Green Ayre, Stake Ayre, Rabbit Ayre and Whinny Ayre—in the tidal reach of the River Lune at Lancaster. Churchill Barrier number 4 in Orkney used a shingle spit, the Ayre of Cara on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar (landform)
In oceanography, geomorphology, and geoscience, a shoal is a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material and rises from the bed of a body of water to near the surface. It often refers to those submerged ridges, banks, or bars that rise near enough to the surface of a body of water as to constitute a danger to navigation. Shoals are also known as sandbanks, sandbars, or gravelbars. Two or more shoals that are either separated by shared troughs or interconnected by past or present sedimentary and hydrographic processes are referred to as a shoal complex.Neuendorf, K.K.E., J.P. Mehl Jr., and J.A. Jackson, eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. The term ''shoal'' is also used in a number of ways that can be either similar or quite different from how it is used in geologic, geomorphic, and oceanographic literature. Sometimes, this term refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Ninian's Isle
St Ninian's Isle is a small tied island connected by the largest tombolo in the UK to the south-western coast of the Mainland, Shetland, in Scotland. It is part of the civil parish of Dunrossness on the South Mainland. The tombolo, known locally as an ''ayre'' from the Old Norse for "gravel bank", is 500 metres long. During the summer the tombolo is above sea level and accessible to walkers. During winter, stronger wave action removes sand from the beach so that it is usually covered at high tide, and occasionally throughout the tidal cycle, until the sand is returned the following spring. Depending on the definition used, St. Ninian's is thus either an island, or a peninsula; it has an area of about 72 hectares. The nearest settlement is Bigton, also in the parish of Dunrossness. The important early medieval St Ninian's Isle Treasure of metalwork, mostly in silver, was discovered under the church floor in 1958. Many seabirds, including puffins, visit the island, with several s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Ronaldsay
South Ronaldsay (, also , sco, Sooth Ronalshee) is one of the Orkney Islands off the north coast of Scotland. It is linked to the Orkney Mainland by the Churchill Barriers, running via Burray, Glimps Holm and Lamb Holm. Name Along with North Ronaldsay, the island is named after St Ronald. The original name from which the English name derives, ''Rǫgnvaldsey'', comes from Old Norse; ''Rǫgnvalds'' ("Ronald's") + ''ey'' ("island"). Geography and geology With an area of , it is the fourth largest of the Orkney islands after The Mainland, Hoy and Sanday. Ferries sail from Burwick on the island to John o' Groats on the Scottish mainland and from St Margaret's Hope to Gills Bay.Wenham, Sheena "The South Isles" in Omand (2003) p. 212. South Ronaldsay's main village is St Margaret's Hope, Orkney's third largest settlement. It is named either after Margaret, Maid of Norway, the heir to the Scottish throne who died in Orkney age sevenWenham, Sheena "The South Isles" in Omand (200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Churchill Barrier
The Churchill Barriers are four causeways in the Orkney islands with a total length of . They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm. The barriers were built between May 1940 and September 1944, primarily as naval defences to protect the anchorage at Scapa Flow, but since 12 May 1945, serve as road links between the islands. The two southern barriers, Glimps Holm to Burray and Burray to South Ronaldsay, are Category A listed. History On 14 October 1939, the Royal Navy battleship HMS ''Royal Oak'' was sunk at her moorings within the natural harbour of Scapa Flow, by the under the command of Günther Prien. ''U-47'' had entered Scapa Flow through Holm Sound, one of several eastern entrances to Scapa Flow. The eastern passages were protected by measures including sunken block ships, booms and anti-submarine nets, but ''U-47'' entered at night at high tide by navigating betwee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lancaster, Lancashire
Lancaster (, ) is a city and the county town of Lancashire, England, standing on the River Lune. Its population of 52,234 compares with one of 138,375 in the wider City of Lancaster local government district. The House of Lancaster was a branch of the English royal family. The Duchy of Lancaster still holds large estates on behalf of Charles III, who is also Duke of Lancaster. Its long history is marked by Lancaster Castle, Lancaster Priory Church, Lancaster Cathedral and the Ashton Memorial. It is the seat of Lancaster University and has a campus of the University of Cumbria. The Port of Lancaster played a big role in the city's growth, but for many years the outport of Glasson Dock has become the main shipping facility. History The name of the city first appeared in the Domesday Book of 1086, as ''Loncastre'', where "Lon" refers to the River Lune and "castre" (from the Old English ''cæster'' and Latin ''castrum'' for "fort") to the Roman fort that stood on the site. Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Lune
The River Lune (archaically sometimes Loyne) is a river in length in Cumbria and Lancashire, England. Etymology Several elucidations for the origin of the name ''Lune'' exist. Firstly, it may be that the name is Brittonic in genesis and derived from ''*lǭn'' meaning "full, abundant", or "healthy, pure" (c.f. Old Irish ''slán'', Welsh ''llawn''). Secondly, ''Lune'' may represent Old English ''Ēa Lōn'' (''ēa'' = "river") as a phonetic adaptation of a Romano-British name referring to a Romano-British god Ialonus who was worshipped in the area. Springs The river begins as a stream at Newbiggin, in the parish of Ravenstonedale, Cumbria, at St. Helen's Well (elevation of above sea level) and some neighbouring springs. On the first two miles of its course, it is joined by four streams, two of them as short as itself, but two much longer. These are the Bessy Beck (short), the Dry Beck of 4.9 kilometres' (three miles) length at from St. Helen's Well, the Sandwath Beck (s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriboll
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Eriboll (Scottish Gaelic: Earabol) is a village in Sutherland, Scotland. The village is situated on the south eastern shore of Loch Eriboll, in the northern part of the former county of Sutherland. The main A838 coast road connects the villages of Tongue, Achuvoldrach, Hope and Eriboll to the east and Portnancon, Sangobeg, Durness and on to Laxford Bridge to the west. Its Norse name means ''Home on a gravel beach''. References Populated places in Sutherland Eriboll Eriboll (Scottish Gaelic: Earabol) is a village in Sutherland, Scotland. The village is situated on the south eastern shore of Loch Eriboll, in the northern part of the former county of Sutherland. The main A838 coast road connects the village ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceland
Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its surrounding areas) is home to over 65% of the population. Iceland is the biggest part of the Mid-Atlantic Ridge that rises above sea level, and its central volcanic plateau is erupting almost constantly. The interior consists of a plateau characterised by sand and lava fields, mountains, and glaciers, and many glacial rivers flow to the sea through the lowlands. Iceland is warmed by the Gulf Stream and has a temperate climate, despite a high latitude just outside the Arctic Circle. Its high latitude and marine influence keep summers chilly, and most of its islands have a polar climate. According to the ancient manuscript , the settlement of Iceland began in 874 AD when the Norwegian chieftain Ingólfr Arnarson became the first p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance Survey
, nativename_a = , nativename_r = , logo = Ordnance Survey 2015 Logo.svg , logo_width = 240px , logo_caption = , seal = , seal_width = , seal_caption = , picture = , picture_width = , picture_caption = , formed = , preceding1 = , dissolved = , superseding = , jurisdiction = Great BritainThe Ordnance Survey deals only with maps of Great Britain, and, to an extent, the Isle of Man, but not Northern Ireland, which has its own, separate government agency, the Ordnance Survey of Northern Ireland. , headquarters = Southampton, England, UK , region_code = GB , coordinates = , employees = 1,244 , budget = , minister1_name = , minister1_pfo = , chief1_name = Steve Blair , chief1_position = CEO , agency_type = , parent_agency = , child1_agency = , keydocument1 = , website = , footnotes = , map = , map_width = , map_caption = Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tombolos
A tombolo is a sandy or shingle isthmus. A tombolo, from the Italian ', meaning 'pillow' or 'cushion', and sometimes translated incorrectly as ''ayre'' (an ayre is a shingle beach of any kind), is a deposition landform by which an island becomes attached to the mainland by a narrow piece of land such as a spit or bar. Once attached, the island is then known as a tied island. Several islands tied together by bars which rise above the water level are called a tombolo cluster. Two or more tombolos may form an enclosure (called a lagoon) that can eventually fill with sediment. Formation The shoreline moves toward the island (or detached breakwater) due to accretion of sand in the lee of the island, where wave energy and longshore drift are reduced and therefore deposition of sand occurs. Wave diffraction and refraction True tombolos are formed by wave refraction and diffraction. As waves near an island, they are slowed by the shallow water surrounding it. These waves th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spit (landform)
A spit or sandspit is a deposition bar or beach landform off coasts or lake shores. It develops in places where re-entrance occurs, such as at a cove's headlands, by the process of longshore drift by longshore currents. The drift occurs due to waves meeting the beach at an oblique angle, moving sediment down the beach in a zigzag pattern. This is complemented by longshore currents, which further transport sediment through the water alongside the beach. These currents are caused by the same waves that cause the drift. Hydrology and geology Where the direction of the shore inland ''re-enters'', or changes direction, for example at a headland, the longshore current spreads out or dissipates. No longer able to carry the full load, much of the sediment is dropped. This is called deposition. This submerged bar of sediment allows longshore drift or littoral drift to continue to transport sediment in the direction the waves are breaking, forming an above-water spit. Without the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
