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92-621: The landscape is marked by several glaciations that formed many lakes, channels and fjords . The region contains icefields including the Northern Patagonian Ice Field and the Southern Patagonian Ice Field , the world's third largest after those in Antarctica and Greenland . The northern half of the region feature a north-south string of volcanoes . While the western part of the region

184-476: A glacier . Fjords exist on the coasts of Antarctica , the Arctic , and surrounding landmasses of the northern and southern hemispheres. Norway's coastline is estimated to be 29,000 km (18,000 mi) long with its nearly 1,200 fjords, but only 2,500 km (1,600 mi) long excluding the fjords . A true fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of

276-664: A "low face". Despite similarities their languages were completely different. The Chono moved around in the area from Chiloé Archipelago to 50° S and the Kawésqar from 46° S to the Strait of Magellan . Thus both groups overlapped in Gulf of Penas , Guayaneco Archipelago and other islands. Yaghans inhabited a reduced area south of Tierra del Fuego . Both Chonos and Kawésqar used Pilgerodendron uviferum as firewood as well as wood for rows, boats and houses. Guaitecas Archipelago made up

368-476: A 2021 study Aysén Region is one of the three Chilean regions that are most prone to suffer nepotism and elite capture . The earliest historically known inhabitants of the fjords and channels of Aysén Region are the Chono and Kawésqar . These two groups shared a life style as canoe-faring hunther-gatherers. They also shared physical traits such as being of low stature, long-headed ( Dolichocephalic ) and having

460-602: A Germanic noun for a travel : North Germanic ferd or färd and of the verb to travel , Dutch varen , German fahren ; English to fare . As a loanword from Norwegian, it is one of the few words in the English language to start with the sequence fj . The word was for a long time normally spelled f i ord , a spelling preserved in place names such as Grise Fiord . The fiord spelling mostly remains only in New Zealand English , as in

552-628: A common Germanic origin of the word. The landscape consists mainly of moraine heaps. The Föhrden and some "fjords" on the east side of Jutland, Denmark are also of glacial origin. But while the glaciers digging "real" fjords moved from the mountains to the sea, in Denmark and Germany they were tongues of a huge glacier covering the basin of which is now the Baltic Sea. See Förden and East Jutland Fjorde . Whereas fjord names mostly describe bays (though not always geological fjords), straits in

644-420: A fishing boom. In the 1990s, salmon aquaculture became an important economic activity and has remained so. An industrial park, devoted mainly to producing frozen and, to a lesser extent, canned, products has developed around Puerto Chacabuco, Puerto Aisén , and Puerto Cisnes . Although mining, based on polymetallic deposits of zinc, gold, and silver, makes a small contribution to Chile's total mining GDP, it

736-451: A fjord as a kind of sea ( Māori : tai ) that runs by a bluff ( matapari , altogether tai matapari "bluff sea"). The term "fjord" is sometimes applied to steep-sided inlets which were not created by glaciers. Most such inlets are drowned river canyons or rias . Examples include: Some Norwegian freshwater lakes that have formed in long glacially carved valleys with sill thresholds, ice front deltas or terminal moraines blocking

828-456: A glacial river flows in. Velfjorden has little inflow of freshwater. In 2000, some coral reefs were discovered along the bottoms of the Norwegian fjords. These reefs were found in fjords from the north of Norway to the south. The marine life on the reefs is believed to be one of the most important reasons why the Norwegian coastline is such a generous fishing ground. Since this discovery

920-592: A great number of the Europeans were from Germany , Switzerland , Austria , the former Yugoslavia , Italy , Spain , the Netherlands , Denmark , Norway and the United Kingdom . Large numbers of Russians , Croats , Scots , Welsh , Irish , and Sudeten Germans from present Czech Republic arrived by government invitation and land sale programs to assist in populating southern Chile and to reduce

1012-421: A highly productive group of phytoplankton that enable such fjords to be valuable feeding grounds for other species. It is possible that as climate change reduces long-term meltwater output, nutrient dynamics within such fjords will shift to favor less productive species, destabilizing the food web ecology of fjord systems. In addition to nutrient flux, sediment carried by flowing glaciers can become suspended in

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1104-430: A large degree developed around the center of the country. Glaciation A glacial period (alternatively glacial or glaciation ) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials , on the other hand, are periods of warmer climate between glacial periods. The Last Glacial Period ended about 15,000 years ago. The Holocene

1196-529: A long, narrow inlet. In eastern Norway, the term is also applied to long narrow freshwater lakes ( Randsfjorden and Tyrifjorden ) and sometimes even to rivers (for instance in Flå Municipality in Hallingdal , the Hallingdal river is referred to as fjorden ). In southeast Sweden, the name fjard fjärd is a subdivision of the term 'fjord' used for bays, bights and narrow inlets on

1288-544: A narrower sound is called sund . In the Finnish language , a word vuono is used although there is only one fjord in Finland. In old Norse genitive was fjarðar whereas dative was firði . The dative form has become common place names like Førde (for instance Førde ), Fyrde or Førre (for instance Førre ). The German use of the word Föhrde for long narrow bays on their Baltic Sea coastline, indicates

1380-500: A protected passage almost the entire 1,601 km (995 mi) route from Stavanger to North Cape , Norway. The Blindleia is a skerry-protected waterway that starts near Kristiansand in southern Norway and continues past Lillesand . The Swedish coast along Bohuslän is likewise skerry guarded. The Inside Passage provides a similar route from Seattle , Washington , and Vancouver , British Columbia , to Skagway , Alaska . Yet another such skerry-protected passage extends from

1472-426: A result, mean temperatures rarely fall below 4 °C (39.2 °F) in the coldest months, while the diurnal range is small, averaging 5 to 7 °C (9.00 to 12.60 °F). Owing to the high precipitation year-round, relative humidity is high, averaging 87% with no months averaging below 80%. High cloud cover dominates the coastal areas year round. In more inland areas to the east (about 40 km (25 mi) to

1564-675: A suffix in names of some Scandinavian fjords and has in same cases also been transferred to adjacent settlements or surrounding areas for instance Hardanger , Stavanger , and Geiranger . The differences in usage between the English and the Scandinavian languages have contributed to confusion in the use of the term fjord. Bodies of water that are clearly fjords in Scandinavian languages are not considered fjords in English; similarly bodies of water that would clearly not be fjords in

1656-541: A threshold around 100 to 200 m (330 to 660 ft) deep. Hardangerfjord is made up of several basins separated by thresholds: The deepest basin Samlafjorden between Jonaneset ( Jondal ) and Ålvik with a distinct threshold at Vikingneset in Kvam Municipality . Hanging valleys are common along glaciated fjords and U-shaped valleys . A hanging valley is a tributary valley that is higher than

1748-582: Is 2,000 m (6,562 ft) below the surrounding regional topography. Fjord lakes are common on the inland lea of the Coast Mountains and Cascade Range ; notable ones include Lake Chelan , Seton Lake , Chilko Lake , and Atlin Lake . Kootenay Lake , Slocan Lake and others in the basin of the Columbia River are also fjord-like in nature, and created by glaciation in the same way. Along

1840-503: Is also an important activity and the region contributes 80% of Chile's salmon output. The archipelago and fjord region in the west is primarily oriented towards the exploitation and cultivation of marine resources. Since the 1980s, the extraction of sea urchins and locos have featured prominently in the economy of Guaitecas Archipelago . In 1985 the discovery of merluza fishing grounds in Moraleda Channel sparkled

1932-412: Is also often described as a fjord, but is actually a freshwater lake cut off from the sea, so is not a fjord in the English sense of the term. Locally they refer to it as a "landlocked fjord". Such lakes are sometimes called "fjord lakes". Okanagan Lake was the first North American lake to be so described, in 1962. The bedrock there has been eroded up to 650 m (2,133 ft) below sea level, which

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2024-430: Is at least 500 m (1,600 ft) deep and water takes an average of 16 years to flow through the lake. Such lakes created by glacial action are also called fjord lakes or moraine-dammed lakes . Some of these lakes were salt after the ice age but later cut off from the ocean during the post-glacial rebound . At the end of the ice age Eastern Norway was about 200 m (660 ft) lower (the marine limit). When

2116-456: Is borrowed from Norwegian , where it is pronounced [ˈfjuːr] , [ˈfjøːr] , [ˈfjuːɽ] or [ˈfjøːɽ] in various dialects and has a more general meaning, referring in many cases to any long, narrow body of water, inlet or channel (for example, see Oslofjord ). The Norwegian word is inherited from Old Norse fjǫrðr , a noun which refers to a 'lake-like' body of water used for passage and ferrying and

2208-620: Is closely related to the noun ferð "travelling, ferrying, journey". Both words go back to Indo-European *pértus "crossing", from the root *per- "cross". The words fare and ferry are of the same origin. The Scandinavian fjord , Proto-Scandinavian * ferþuz , is the origin for similar Germanic words: Icelandic fjörður , Faroese fjørður , Swedish fjärd (for Baltic waterbodies), Scots firth (for marine waterbodies, mainly in Scotland and northern England). The Norse noun fjǫrðr

2300-570: Is densely vegetated and mountainous, the eastern reaches contain open grasslands and much flat and rolling terrain. Aysén Region was the last major area to be effectively incorporated into the Republic of Chile, with the first permanent settlements emerging in the second half of the 19th century and the inland part being settled at the turn of the century. Until the construction of Route 7 (the Carretera Austral , or Southern Highway) in

2392-653: Is fairly new, little research has been done. The reefs are host to thousands of lifeforms such as plankton , coral , anemones , fish, several species of shark, and many more. Most are specially adapted to life under the greater pressure of the water column above it, and the total darkness of the deep sea. New Zealand's fjords are also host to deep-water corals , but a surface layer of dark fresh water allows these corals to grow in much shallower water than usual. An underwater observatory in Milford Sound allows tourists to view them without diving. In some places near

2484-437: Is involved in cattle and sheep herding, while the latter tends to be more oriented around farming. The settler heritage of the region arising from Argentina and Chiloé have also led to a unique dialect of Spanish distinct from Central Chile, especially in the areas along the border with Argentina. It is the blend of these cultures and geographic isolation that make Aysén a region distinct from the national identity of Chile which to

2576-505: Is located on the southern shore of Lake Superior in Michigan . The principal mountainous regions where fjords have formed are in the higher middle latitudes and the high latitudes reaching to 80°N (Svalbard, Greenland), where, during the glacial period, many valley glaciers descended to the then-lower sea level. The fjords develop best in mountain ranges against which the prevailing westerly marine winds are orographically lifted over

2668-505: Is often described as the world's strongest tidal current . These characteristics distinguish fjords from rias (such as the Bay of Kotor ), which are drowned valleys flooded by the rising sea. Drammensfjorden is cut almost in two by the Svelvik "ridge", a sandy moraine that was below sea level when it was covered by ice, but after the post-glacial rebound reaches 60 m (200 ft) above

2760-527: Is significant in regional exports. Exploitation of forests and the production of yard timber, plywood, and panels for furniture is mostly geared to export markets. Animal husbandry focuses on beef cattle, sheep, and sheep's wool, part of which is exported. The region contains about 15,240 ha of Sphagnum bogs, and given an exploitation boom in 2010s extraction of Sphagnum in Chile is regulated by law since August 2, 2018. The commune that concentrates most of

2852-466: Is the current interglacial. A time with no glaciers on Earth is considered a greenhouse climate state . Within the Quaternary , which started about 2.6 million years before present , there have been a number of glacials and interglacials. At least eight glacial cycles have occurred in the last 740,000 years alone. The Penultimate Glacial Period (PGP) is the glacial period that occurred before

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2944-470: Is the freshwater fjord Movatnet (Mo lake) that until 1743 was separated from Romarheimsfjorden by an isthmus and connected by a short river. During a flood in November 1743, the river bed eroded and sea water could flow into the lake at high tide. Eventually, Movatnet became a saltwater fjord and renamed Mofjorden ( Mofjorden ). Like fjords, freshwater lakes are often deep. For instance Hornindalsvatnet

3036-409: Is the isthmus with a village between Hornindalsvatnet lake and Nordfjord . Such lakes are also denoted fjord valley lakes by geologists. One of Norway's largest is Tyrifjorden at 63 m (207 ft) above sea level and an average depth at 97 m (318 ft) most of the lake is under sea level. Norway's largest lake, Mjøsa , is also referred to as "the fjord" by locals. Another example

3128-410: Is usually a large inflow of river water in the inner areas. This freshwater gets mixed with saltwater creating a layer of brackish water with a slightly higher surface than the ocean which in turn sets up a current from the river mouths towards the ocean. This current is gradually more salty towards the coast and right under the surface current there is a reverse current of saltier water from the coast. In

3220-529: The Chacabuco , who discovered its usefulness for accessing more inland locations. The exploitation of Pilgerodendron uviferum ( Spanish : ciprés de las Guaitecas ) in the archipelagoe and fjords of Aysén Region contributed to link early economy of the region to Chiloé Archipelago further north. Following the signing of the Boundary Treaty with Argentina in 1881, European settlers came from

3312-636: The British Columbia Coast , a notable fjord-lake is Owikeno Lake , which is a freshwater extension of Rivers Inlet . Quesnel Lake , located in central British Columbia, is claimed to be the deepest fjord formed lake on Earth. A family of freshwater fjords are the embayments of the North American Great Lakes. Baie Fine is located on the northwestern coast of Georgian Bay of Lake Huron in Ontario , and Huron Bay

3404-595: The Last Glacial Period . It began about 194,000 years ago and ended 135,000 years ago, with the beginning of the Eemian interglacial. The last glacial period was the most recent glacial period within the Quaternary glaciation at the end of the Pleistocene , and began about 110,000 years ago and ended about 11,700 years ago. The glaciations that occurred during the glacial period covered many areas of

3496-896: The Northern Hemisphere and have different names, depending on their geographic distributions: Wisconsin (in North America ), Devensian (in Great Britain ), Midlandian (in Ireland ), Würm (in the Alps ), Weichsel (in northern Central Europe ), Dali (in East China ), Beiye (in North China ), Taibai (in Shaanxi ) Luoji Shan (in southwest Sichuan ), Zagunao (in northwest Sichuan ), Tianchi (in

3588-450: The Northern Patagonian Ice Field and the Southern Patagonian Ice Field , which are located at higher altitudes, temperatures are cold enough to maintain permanent ice fields. These two ice fields receive abundant precipitation year-round, particularly in the west facing slopes of the Andes that descend to the ocean and fiords . The climate is very windy. No meteorological stations exist in

3680-459: The Scandinavian sense of the term, are not universally considered to be fjords by the scientific community, because although glacially formed, most Finnmark fjords lack the steep-sided valleys of the more southerly Norwegian fjords. The glacial pack was deep enough to cover even the high grounds when they were formed. The Oslofjord , on the other hand, is a rift valley , and not glacially formed. The indigenous Māori people of New Zealand see

3772-613: The Straits of Magellan north for 800 km (500 mi). Fjords provide unique environmental conditions for phytoplankton communities. In polar fjords, glacier and ice sheet outflow add cold, fresh meltwater along with transported sediment into the body of water. Nutrients provided by this outflow can significantly enhance phytoplankton growth. For example, in some fjords of the West Antarctic Peninsula (WAP), nutrient enrichment from meltwater drives diatom blooms,

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3864-734: The Tian Shan ) Jomolungma (in the Himalayas ), and Llanquihue (in Chile ). The glacial advance reached the Last Glacial Maximum about 26,500 BP . In Europe , the ice sheet reached Northern Germany . Over the last 650,000 years, there have been on average seven cycles of glacial advance and retreat. Since orbital variations are predictable, computer models that relate orbital variations to climate can predict future climate possibilities. Work by Berger and Loutre suggests that

3956-543: The Viking settlers—though the inlet at that place in modern terms is an estuary , not a fjord. Similarly the name of Milford (now Milford Haven) in Wales is derived from Melrfjǫrðr ("sandbank fjord/inlet"), though the inlet on which it is located is actually a ria. Before or in the early phase of Old Norse angr was another common noun for fjords and other inlets of the ocean. This word has survived only as

4048-406: The 1980s, the only overland routes from north to south through the region were extremely primitive tracks. Region XI, Aysen del General Carlos Ibanez del Campo, is the least populated of the country. According to the 2002 census there were only 91,492 inhabitants in an area of 106,990.9 km². The population density is 0.85 inhabitants per km². Between 2000 and 2005, the average annual growth rate

4140-407: The Chile state, long after even the southernmost region of Magallanes and Chilean Antarctica . Its geographical location and transport difficulties explain the lack of interest in the nineteenth century for this region, to the point that no one even thought of colonizing it with immigrants, as happened with the other southern regions. In 1870, Aysén Fjord was explored by Enrique Simpson onboard

4232-585: The Guaitecas and Chonos inhabited the Chonos Archipelago . They are believed to have become extinct in the 20th century. In the archipelagos south of the Gulf of Penas and to Tierra del Fuego lived the Alacalufes or Kaweshkar , also fishermen. Both groups were quickly decimated by disease and attacks by settlers in the late 19th century coming from northern and southern Chile and Europe ;

4324-856: The Limfjord once was a fjord until the sea broke through from the west. Ringkøbing Fjord on the western coast of Jutland is a lagoon . The long narrow fjords of Denmark's Baltic Sea coast like the German Förden were dug by ice moving from the sea upon land, while fjords in the geological sense were dug by ice moving from the mountains down to the sea. However, some definitions of a fjord is: "A long narrow inlet consisting of only one inlet created by glacial activity". Examples of Danish fjords are: Kolding Fjord , Vejle Fjord and Mariager Fjord . The fjords in Finnmark in Norway, which are fjords in

4416-587: The Pampas to the valleys that cross the Andes from east to west. These private efforts led to the uncoordinated creation of cities of Puerto Aysen in 1904 and Balmaceda and Coyhaique in 1917 and 1929, respectively. The oldest town is Melinka , established by the mid-nineteenth century on Ascension Island in the Guaitecas Archipelago . The indigenous population was sparse. In the insular region,

4508-546: The Scandinavian sense have been named or suggested to be fjords. Examples of this confused usage follow. In the Danish language some inlets are called a fjord, but are, according to the English language definition, technically not a fjord, such as Roskilde Fjord . Limfjord in English terminology is a sound , since it separates the North Jutlandic Island (Vendsyssel-Thy) from the rest of Jutland . However,

4600-616: The Spanish Empire halted. The Spanish are thought to have lacked incentives for further conquests south. The indigenous populations were scarce and had ways of life that differed from the sedentary agricultural life the Spanish were accostumed to. The harsh climate in the fjords and channels of Patagonia may also have deterred further expansion. Indeed, even in Chiloé did the Spanish encounter difficulties to adapt as their attempts to base

4692-476: The Swedish Baltic Sea coast, and in most Swedish lakes. This latter term is also used for bodies of water off the coast of Finland where Finland Swedish is spoken. In Danish, the word may even apply to shallow lagoons . In modern Icelandic, fjörður is still used with the broader meaning of firth or inlet. In Faroese fjørður is used both about inlets and about broader sounds, whereas

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4784-517: The climate is more continental than coastal areas. Mean temperatures average between 8 and 10 °C (46.4 and 50.0 °F) which tends to be 1 or 2 °C (1.80 or 3.60 °F) lower than coastal areas at the same latitude. With lower precipitation, relative humidity is lower, averaging between 71% and 74% in Cochrane and Coyahique respectively. Cloud cover is lower and there are more clear days in inland areas than coastal areas. Corresponding to

4876-514: The current warm climate may last another 50,000 years. The amount of heat trapping (greenhouse) gases being emitted into the Earth's oceans and its atmosphere may delay the next glacial period by an additional 50,000 years. Fiords In physical geography , a fjord (also spelled fiord in New Zealand English ; ( / ˈ f j ɔːr d , f iː ˈ ɔːr d / ) is a long, narrow sea inlet with steep sides or cliffs, created by

4968-434: The deeper parts of the fjord the cold water remaining from winter is still and separated from the atmosphere by the brackish top layer. This deep water is ventilated by mixing with the upper layer causing it to warm and freshen over the summer. In fjords with a shallow threshold or low levels of mixing this deep water is not replaced every year and low oxygen concentration makes the deep water unsuitable for fish and animals. In

5060-407: The deepest fjord basins. Near the very coast, the typical West Norwegian glacier spread out (presumably through sounds and low valleys) and lost their concentration and reduced the glaciers' power to erode leaving bedrock thresholds. Bolstadfjorden is 160 m (520 ft) deep with a threshold of only 1.5 m (4 ft 11 in), while the 1,300 m (4,300 ft) deep Sognefjorden has

5152-593: The direction of Sognefjord and the fold pattern. This relationship between fractures and direction of fjords is also observed in Lyngen . Preglacial, tertiary rivers presumably eroded the surface and created valleys that later guided the glacial flow and erosion of the bedrock. This may in particular have been the case in Western Norway where the tertiary uplift of the landmass amplified eroding forces of rivers. Confluence of tributary fjords led to excavation of

5244-519: The east of the coastal areas), precipitation is much lower, averaging 730 mm (29 in) in Cochrane to 1,200 mm (47 in) in Coyhaique . Precipitation is the highest from May to August, which receives 50% of the annual precipitation. During periods of cold temperatures, precipitation can fall as snow during these months. Being located inland and farther away from the maritime influence,

5336-473: The economy on gold extraction and a "hispanic-mediterranean" agricultural model failed. During colonial times, the fjords and channels of Patagonia were first explored by the Spaniards . There were a number of motivations for their explorations, including a desire to Christianize indigenous peoples, to prevent intrusions of foreign powers into territory claimed by Spain, to increase geographic knowledge of

5428-419: The fjord. In the 19th century, Jens Esmark introduced the theory that fjords are or have been created by glaciers and that large parts of Northern Europe had been covered by thick ice in prehistory. Thresholds at the mouths and overdeepening of fjords compared to the ocean are the strongest evidence of glacial origin, and these thresholds are mostly rocky. Thresholds are related to sounds and low land where

5520-413: The fjord. Bolstadfjorden has a threshold of only 1.5 m (4 ft 11 in) and strong inflow of freshwater from Vosso river creates a brackish surface that blocks circulation of the deep fjord. The deeper, salt layers of Bolstadfjorden are deprived of oxygen and the seabed is covered with organic material. The shallow threshold also creates a strong tidal current. During the summer season, there

5612-489: The formation of sea ice. The study of phytoplankton communities within fjords is an active area of research, supported by groups such as FjordPhyto, a citizen science initiative to study phytoplankton samples collected by local residents, tourists, and boaters of all backgrounds. An epishelf lake forms when meltwater is trapped behind a floating ice shelf and the freshwater floats on the denser saltwater below. Its surface may freeze forming an isolated ecosystem. The word fjord

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5704-477: The ice cap receded and allowed the ocean to fill valleys and lowlands, and lakes like Mjøsa and Tyrifjorden were part of the ocean while Drammen valley was a narrow fjord. At the time of the Vikings Drammensfjord was still four or five m (13 or 16 ft) higher than today and reached the town of Hokksund , while parts of what is now the city of Drammen was under water. After the ice age

5796-464: The ice could spread out and therefore have less erosive force. John Walter Gregory argued that fjords are of tectonic origin and that glaciers had a negligible role in their formation. Gregory's views were rejected by subsequent research and publications. In the case of Hardangerfjord the fractures of the Caledonian fold has guided the erosion by glaciers, while there is no clear relation between

5888-479: The ice fields so it is estimated that the average high, average low and mean temperatures are below 0 °C (32.0 °F) in all months to maintain permanent ice fields. The easternmost parts of the region have a cold steppe climate . Precipitation is significantly lower than the other parts of the region with mean monthly precipitation below 40 mm (1.6 in). Precipitation is concentrated from May to August where these months are responsible for 55% to 65% of

5980-552: The ice load and eroded sediment is removed (also called isostasy or glacial rebound). In some cases, this rebound is faster than sea level rise . Most fjords are deeper than the adjacent sea ; Sognefjord , Norway , reaches as much as 1,300 m (4,265 ft) below sea level . Fjords generally have a sill or shoal (bedrock) at their mouth caused by the previous glacier's reduced erosion rate and terminal moraine . In many cases this sill causes extreme currents and large saltwater rapids (see skookumchuck ). Saltstraumen in Norway

6072-415: The inhabitants of southern Chiloé who visited these areas for wood, fish or hunting. Over-all the physical infrastructure of the Spanish in the fjords and channels during the colonial period was negligible and consisted of a few chapels built in the 1610s and 1620s and a wooden fortress built in 1750. All these buildings were abandoned after a few years. The Aysen region was the last to be integrated into

6164-446: The level of the original sea level. In Eidfjord, Eio has dug through the original delta and left a 110 m (360 ft) terrace while lake is only 19 m (62 ft) above sea level. Such deposits are valuable sources of high-quality building materials (sand and gravel) for houses and infrastructure. Eidfjord village sits on the eid or isthmus between Eidfjordvatnet lake and Eidfjorden branch of Hardangerfjord. Nordfjordeid

6256-471: The main fjord. The mouth of Fjærlandsfjord is about 400 m (1,300 ft) deep while the main fjord is 1,200 m (3,900 ft) nearby. The mouth of Ikjefjord is only 50 m (160 ft) deep while the main fjord is around 1,300 m (4,300 ft) at the same point. During the winter season, there is usually little inflow of freshwater. Surface water and deeper water (down to 100 m or 330 ft or more) are mixed during winter because of

6348-439: The main valley and was created by tributary glacier flows into a glacier of larger volume. The shallower valley appears to be 'hanging' above the main valley or a fjord. Often, waterfalls form at or near the outlet of the upper valley. Small waterfalls within these fjords are also used as freshwater resources. Hanging valleys also occur underwater in fjord systems. The branches of Sognefjord are for instance much shallower than

6440-497: The marine limit. Like freshwater fjords, the continuation of fjords on land are in the same way denoted as fjord-valleys . For instance Flåmsdal ( Flåm valley) and Måbødalen . Outside of Norway, the three western arms of New Zealand 's Lake Te Anau are named North Fiord, Middle Fiord and South Fiord. Another freshwater "fjord" in a larger lake is Western Brook Pond , in Newfoundland's Gros Morne National Park ; it

6532-405: The most extreme cases, there is a constant barrier of freshwater on the surface and the fjord freezes over such that there is no oxygen below the surface. Drammensfjorden is one example. The mixing in fjords predominantly results from the propagation of an internal tide from the entrance sill or internal seiching. The Gaupnefjorden branch of Sognefjorden is strongly affected by freshwater as

6624-518: The mountainous regions, resulting in abundant snowfall to feed the glaciers. Hence coasts having the most pronounced fjords include the west coast of Norway, the west coast of North America from Puget Sound to Alaska, the southwest coast of New Zealand, and the west and to south-western coasts of South America , chiefly in Chile . Other regions have fjords, but many of these are less pronounced due to more limited exposure to westerly winds and less pronounced relief. Areas include: The longest fjords in

6716-575: The number of indigenous peoples. The Aysén region of Chile, represents a cultural exchange mainly between Argentina and the Chiloé Archipelago which form the main settler groups that inhabit the area. The Gaucho is an important symbol of the region shaping the cuisine, dance, and music of Aysén rather than the Huaso of Central Chile. The main difference between the Guacho and Huaso is the former

6808-448: The ocean was about 150 m (490 ft) at Notodden . The ocean stretched like a fjord through Heddalsvatnet all the way to Hjartdal . Post-glacial rebound eventually separated Heddalsvatnet from the ocean and turned it into a freshwater lake. In neolithic times Heddalsvatnet was still a saltwater fjord connected to the ocean, and was cut off from the ocean around 1500 BC. Some freshwater fjords such as Slidrefjord are above

6900-491: The one in the central parts of the country. This is due to the moderating influence of General Carrera Lake which prevents temperatures from dropping too low. The vegetation is mostly shrubs owing to the low temperatures and precipitation. Relative humidity is lower, with mean annual values varying between 62% and 71%. The primary sector dominates in the regional economy, which focuses on the exploitation and processing of marine, mining, forestry, and animal resources. Aquaculture

6992-423: The outlet follow the Norwegian naming convention; they are frequently named fjords. Ice front deltas developed when the ice front was relatively stable for long time during the melting of the ice shield. The resulting landform is an isthmus between the lake and the saltwater fjord, in Norwegian called "eid" as in placename Eidfjord or Nordfjordeid . The post-glacial rebound changed these deltas into terraces up to

7084-439: The outlet of fjords where submerged glacially formed valleys perpendicular to the coast join with other cross valleys in a complex array. The island fringe of Norway is such a group of skerries (called a skjærgård ); many of the cross fjords are so arranged that they parallel the coast and provide a protected channel behind an almost unbroken succession of mountainous islands and skerries. By this channel, one can travel through

7176-465: The place name Fiordland . The use of the word fjord in Norwegian, Danish and Swedish is more general than in English and in international scientific terminology. In Scandinavia, fjord is used for a narrow inlet of the sea in Norway, Denmark and western Sweden, but this is not its only application. In Norway and Iceland, the usage is closest to the Old Norse, with fjord used for both a firth and for

7268-454: The precipitation are associated with strong winds from the northwest and the north. The winter months are usually the wettest months. Mean annual temperatures are between 8 and 9 °C (46.4 and 48.2 °F) with January being the warmest month. Temperatures decrease with latitude although owing to maritime influence which is reinforced with strong westerly winds throughout the year, temperatures are not extremely low compared to inland areas. As

7360-527: The region results in different types of climate zones in the western and eastern parts. There are four distinct climate zones found within the region. Coastal areas to the west have a cool temperate climate. The coastal areas receive abundant precipitation throughout the year with mean annual precipitation that can reach 4,000 millimetres (157 in). For example, Puerto Aysen receives 2,940 mm (116 in) of precipitation per year while on San Pedro Island, it receives 4,266 mm (168.0 in). Most of

7452-519: The region's Sphagnum bogs —28.5%— is O'Higgins . Given Sphagnum ’s property to absorb excess water and release it during dry months overexploitation of Sphagnum may threaten the water supply in the archipelagoes of Aysén Region. Aysén del General Carlos Ibáñez del Campo Region is subdivided into 4 provinces in which each province is divided into municipalities ( communes ). There are a total of 10 municipalities in Aysén Region. According to

7544-587: The same regions typically are named Sund , in Scandinavian languages as well as in German. The word is related to "to sunder" in the meaning of "to separate". So the use of Sound to name fjords in North America and New Zealand differs from the European meaning of that word. The name of Wexford in Ireland is originally derived from Veisafjǫrðr ("inlet of the mud flats") in Old Norse, as used by

7636-487: The seaward margins of areas with fjords, the ice-scoured channels are so numerous and varied in direction that the rocky coast is divided into thousands of island blocks, some large and mountainous while others are merely rocky points or rock reefs , menacing navigation. These are called skerries . The term skerry is derived from the Old Norse sker , which means a rock in the sea. Skerries most commonly formed at

7728-408: The southern limit of Pre-Hispanic agriculture as noted by the mention of the cultivation of potatoes by a Spanish expedition in 1557. Pedro de Valdivia sought originally to conquer all of southern South America to the Straits of Magellan (53° S). He did however only reach Reloncaví Sound (41°45' S). Later in 1567 Chiloé Archipelago (42°30' S) was conquered, from there on southern expansion of

7820-419: The steady cooling of the surface and wind. In the deep fjords, there is still fresh water from the summer with less density than the saltier water along the coast. Offshore wind, common in the fjord areas during winter, sets up a current on the surface from the inner to the outer parts. This current on the surface in turn pulls dense salt water from the coast across the fjord threshold and into the deepest parts of

7912-420: The surrounding bedrock. According to the standard model, glaciers formed in pre-glacial valleys with a gently sloping valley floor. The work of the glacier then left an overdeepened U-shaped valley that ends abruptly at a valley or trough end. Such valleys are fjords when flooded by the ocean. Thresholds above sea level create freshwater lakes. Glacial melting is accompanied by the rebounding of Earth's crust as

8004-628: The total annual precipitation. Snowfall can occur during these months owing to colder temperatures. Mean annual precipitation ranges from 300 mm (12 in) in Chile Chico to 612 mm (24.1 in) in Balmaceda . Mean temperatures are lower than areas to the east, averaging between 6 and 8 °C (42.8 and 46.4 °F). Mean summer temperatures can exceed 15 °C (59.0 °F) in Chile Chico, which permits agriculture, similar to

8096-455: The water column, increasing turbidity and reducing light penetration into greater depths of the fjord. This effect can limit the available light for photosynthesis in deeper areas of the water mass, reducing phytoplankton abundance beneath the surface. Overall, phytoplankton abundance and species composition within fjords is highly seasonal, varying as a result of seasonal light availability and water properties that depend on glacial melt and

8188-649: The zone, and finally, to search for a mythical city called City of the Caesars . False rumours of European settlements near the Straits of Magellan led the Spanish to organize the Antonio de Vea expedition of 1675–1676 which was the largest expedition to the date. In 1792, the viceroy of Peru ordered the exploration of the Patagonian channels in order to find an entrance to the interior of Patagonia. The said order

8280-589: Was adopted in German as Förde , used for the narrow long bays of Schleswig-Holstein , and in English as firth "fjord, river mouth". The English word ford (compare German Furt , Low German Ford or Vörde , in Dutch names voorde such as Vilvoorde, Ancient Greek πόρος , poros , and Latin portus ) is assumed to originate from Germanic * ferþu- and Indo-European root * pertu- meaning "crossing point". Fjord/firth/Förde as well as ford/Furt/Vörde/voorde refer to

8372-590: Was carried of by José de Moraleda who led an expedition that visited many of the main channels of the zone. Following the decline of the Chono populations in the archipelago in the 18th century, the area gained a reputation of "emptyness" among Chileans akin to the description of eastern Patagonia as a "desert." However, the islands were often visited and traversed in the 19th century by fishermen, lumberjacks , and hunters from Chiloé. This makes it clear that many areas that were traversed by explorers were already known to

8464-413: Was estimated at 1.35 per 100 inhabitants. The largest cities according to the 2002 census are Coyhaique (population 44,850), Puerto Aysen (16,936), Chile Chico (3042), Puerto Cisnes (2517), Cochrane (2217), Melinka (1411) and Mañihuales Villa (1401). Aysén Region climate's is classified as a cool oceanic climate with low temperatures, abundant precipitation and strong winds. The relief found throughout

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