Swiss Alps

Source: Wikipedia, the free encyclopedia.
Satellite image of Switzerland in October 2002. On the north side of the Alps
, the regions located above 2000m are covered by snow. The canton of Ticino (on the south side) is almost snow-free in early autumn.

The Alpine region of Switzerland, conventionally referred to as the Swiss Alps (German: Schweizer Alpen, French: Alpes suisses, Italian: Alpi svizzere, Romansh: Alps svizras), represents a major natural feature of the country and is, along with the Swiss Plateau and the Swiss portion of the Jura Mountains, one of its three main physiographic regions. The Swiss Alps extend over both the Western Alps and the Eastern Alps, encompassing an area sometimes called Central Alps.[1] While the northern ranges from the Bernese Alps to the Appenzell Alps are entirely in Switzerland, the southern ranges from the Mont Blanc massif to the Bernina massif are shared with other countries such as France, Italy, Austria and Liechtenstein.

The Swiss Alps comprise almost all the highest mountains of the

list of mountains of Switzerland
.

Since the

nucleus of the Swiss Confederacy
in the early 14th century.

Geography

See also: Geography of Switzerland
Swiss Alps seen from the Swiss Jura in December 2010

The Alps cover 60% of Switzerland's total 41,285 square kilometres (15,940 sq mi) surface area, making it one of the most

alpine four-thousanders are located in the Swiss Alps and practically all of the remaining 34 are within 20 kilometres (12 mi) of the country's border.[4]

The glaciers of the Swiss Alps cover an area of 1,220 square kilometres (470 sq mi) — 3% of the Swiss territory, representing 44% of the total glaciated area in the Alps i.e. 2,800 square kilometres (1,100 sq mi).

The Swiss Alps are situated south of the

Rorschach on the shores of Lake Constance, passing close to the cities of Thun and Lucerne.[5] The not well defined regions in Switzerland that lie on the margin of the Alps, especially those on the north side, are called the Swiss Prealps[6] (Préalpes in French, Voralpen in German, Prealpi in Italian). The Swiss Prealps are mainly made of limestone and they generally do not exceed 2,500 metres (8,200 ft).[7]

The Alpine

Appenzell Ausserrhoden, Fribourg, Lucerne and Zug. The countries with which Switzerland shares mountain ranges of the Alps are (from west to east): France, Italy, Austria and Liechtenstein
.

Ranges

The Alps are usually divided into two main parts, the

canton of Graubünden. The latter is part of the Central Eastern Alps, except the Ortler Alps which belong to the Southern Limestone Alps. The Pennine, Bernese and Bernina Range are the highest ranges of the country, they contain respectively 38, 9 and 1 summit over 4000 meters. The lowest range is the Appenzell Alps
culminating at 2,500 meters.

Western Alps

Map of the western Swiss Alps
Location Range Cantons, Country Notable peaks East limit
From west to east, north of Rhône and Rhine
Bernese Alps
Valais
 Finsteraarhorn, Aletschhorn, Jungfrau, Mönch, Eiger, Lauteraarhorn Grimsel Pass
Uri and Emmental Alps
Valais
) 		Dammastock, Titlis, Brienzer Rothorn, Pilatus, Napf Reuss
Schwyzer Alps
Graubünden, Lucerne
Mythen
 Seeztal
Appenzell Alps
Zurich
) 		Säntis, Churfirsten Rhine
From west to east, south of Rhône and Rhine
Chablais Alps
Valais, France
 Dents du Midi Arve
Mont Blanc massif
Valais, France, Italy
 Aiguille d'Argentière Col Ferret
Pennine Alps
Valais, Italy
 Monte Rosa, Weisshorn, Matterhorn Simplon Pass
Lepontine Alps
Graubünden
 Monte Leone, Rheinwaldhorn Splügen Pass

Eastern Alps

Map of the eastern Swiss Alps
Location Range Notable peaks
From west to east, north of
Mera and Inn
Oberhalbstein
 Piz Platta
Plessur
 Aroser Weisshorn
Albula
 Piz Kesch, Piz Lunghin
Rätikon Schesaplana
Silvretta
 Piz Linard, Piz Buin
Samnaun Alps Muttler
From west to east, south of
Mera and Inn
Bregaglia Cima di Castello, Piz Badile
Bernina Piz Bernina, Piz Roseg
Livigno
 Piz Paradisin
Ortler Alps Piz Murtaröl
Sesvenna
 Piz Sesvenna

Hydrography

See also:
Valleys of the Alps

Rivers

See also:
List of rivers in Switzerland
Rhine Gorge
in Graubünden

The north side of the Swiss Alps is drained by the

Atlantic (the North Sea) and the Mediterranean Sea (Adriatic and the Black Sea). The European watershed lies only partially on the main chain
. Switzerland possesses 6% of Europe's freshwater, and is sometimes referred to as the "water tower of Europe".

Lakes

See also: List of lakes of Switzerland and List of mountain lakes of Switzerland
Lac des Dix
in Valais

Since the

artificial and are used as hydroelectric reservoirs.[8] Some large artificial lakes can be found above 2,300 m, but natural lakes larger than 1 km2 are generally below 1,000 m (with the exceptions of lakes in the Engadin such as Lake Sils, and Oeschinen in the Bernese Oberland). The melting of low-altitude glaciers can generate new lakes, such as the 0.25 km2 large Triftsee
which formed between 2002 and 2003.

Hydroelectricity Impacts due to Glacial Melting

Switzerland has been using this concerning transition in climate as a positive opportunity to develop new innovations and to change the ways that energy is being produced in the country. Switzerland depends on the use of hydroelectricity to power nearby communities, but as glaciers melt and stop refreezing, the melting that creates the energy ceases to exist. Researchers have been evaluating how the topography will change as the glaciers begin to decrease and they are looking more deeply into potential construction costs, energy production, and future problems they might encounter with these new developments. Switzerland is one of many countries that need to begin to think about the future of energy production in response to climate change. Switzerland is paving the way for a new wave of innovation and creative problem solving that the rest of the world will eventually need to follow.[9]

Land elevation

See also:
Swiss cantons by elevation

The following table[10] gives the surface area above 2000 m and 3000 m and the respective percentage on the total area of each canton whose high point is above 2000 metres.

Canton Land above 2000m in km2 Land above 2000m in % Land above 3000m in km2 Land above 3000m in %
Appenzell Ausserrhoden
 1 0.4 0 0
Appenzell Innerrhoden
 4 2.3 0 0
Bern 887 15 100 1.7
Fribourg 14 0.8 0 0
Glarus 213 31 4 0.6
Graubünden
 4296 60 111 1.6
Lucerne 4 0.3 0 0
Nidwalden
 20 7 0 0
Obwalden
 66 13 1 0.2
Schwyz 69 8 0 0
St. Gallen
 184 9 1 0.05
Ticino
 781 28 2 0.07
Uri 562 52 19 1.8
Valais
 2595 50 697 13
Vaud
 92 3 1 0.03
Switzerland 9788 24 936 2.3

Monitoring glacial changes over time

PERMOS (The Swiss Permafrost Monitoring Network) is an operational monitoring service, and its main goal is to create long-term scientific documentation of the permafrost changes in the Swiss Alps. To accurately represent the current conditions of the Alps, the network records permafrost temperatures and thermal changes in boreholes, the bottom temperature of the snow cover, ground surface temperature, and the development of snow cover. The network additionally takes air photos periodically from selected areas. These monitoring strategies continue to develop as new research and data are recorded over time.[11] The glaciers in the Swiss Alps have lost around half their volume during the last 90–120 years.[12][13]

Geology

Main article: Geology of the Alps
See also: List of glaciers in Switzerland
Lauterbrunnen
Valley in the Bernese Alps, a deep U-shaped valley that resulted from erosion by glaciers

The composition of the great tectonic units reflects the history of the formation of the Alps. The rocks from the

Briançonnais microcontinent and the Tethys Ocean. The closure of the latter by subduction under the African plate (Piemont Ocean first and Valais Ocean later) preceded the collision between the two plates and the so-called alpine orogeny. The major thrust fault of the Tectonic Arena Sardona in the eastern Glarus Alps gives a visible illustration of mountain-building processes and was therefore declared a UNESCO World Heritage. Another fine example gives the Alpstein
area with several visible upfolds of Helvetic zone material.

With some exceptions, the Alps north of Rhône and Rhine are part of the Helvetic Zone and those on the south side are part of the Penninic nappes. The Austroalpine zone concerns almost only the Eastern Alps, with the notable exception of the Matterhorn.

The last

Flims Rockslide, the biggest still visible landslide
worldwide.

Environment and climate

To protect endangered species some sites have been brought under protection. The

Jungfrau-Aletsch Protected Area
is the first World Heritage Site in the Alps.

Climate zones

See also: Climate of the Alps

As the temperature decreases with altitude (0.56 °C per 100 meters on yearly average), three different altitudinal zones, each having distinct climate, are found in the Swiss Alps:

  • Subalpine zone
Tree line in the national park
Gorner Glacier

The

Subalpine zone is the region that lies below the tree line. It is the most important region as it is the largest of the three and contains almost all human settlements as well as the productive areas. The forests are mainly composed of conifers above 1,200–1,400 meters, the deciduous
tree forest is confined to lower elevations. The upper limit of the Subalpine zone is located at about 1,800 meters on the north side of the Alps and about 2,000 meters on the south side. It can, however, differ in some regions such as the Appenzell Alps (1,600 meters) or the Engadin valley (2,300 meters).

  • Alpine zone

The

alpine meadows are often used as pastures. Some villages can still be found on the lowest altitudes such as Riederalp (1,940 m) or Juf
(2,130 m). The extent of the Alpine zone is limited by the first permanent snow, its altitude greatly varies depending on the location (and orientation), it comprises between 2,800 and 3,200 meters.

  • Glacial zone

The glacial zone is the area of permanent snow and ice. When the steepness of the slope is not too high it results in an accumulation and compaction of snow, which transforms into ice. The glacier-formed then flows down the valley and can reach as far down as 1,500 meters (the Upper Grindelwald Glacier). Where the slopes are too steep, the snow accumulates to form overhanging seracs, which periodically fall off due to the downward movement of the glacier and cause ice avalanches. The Bernese Alps, Pennine Alps, and Mont Blanc Massif contain most of the glaciated areas in the Alps. Except for research stations such as the Sphinx Observatory, no settlements are to be found in those regions.

Impact of glacial melting

Due to the change in weather patterns, the summers are expected to continue getting warmer and drier, while the winters are expected to become moister. This change in the weather increases the chances of flooding with heavier rainfall, the melting of permafrost zones, a change in the geography and wildlife, and the occurrence of more deadly rock slides. Furthermore, natural hazards are occurring more frequently, such as floods, avalanches, and landslides. Additionally, the water supply that the glaciers originally provided is on the decline, which is problematic for producing energy, agricultural practices, and other human use. Finally, the glacial melting puts the economy at risk because there will be less incoming financial revenue from the tourism and recreation services that these glaciers and ecosystems typically provide. All of these impacts will disrupt the nearby communities and require that updated infrastructure and safety measures be put into place to prevent mass destruction. [15] [16]

Travel and tourism

Glacier 3000
cable car

Tourism in the Swiss Alps began with the first ascents of the main peaks of the Alps (Jungfrau in 1811, Piz Bernina in 1850, Monte Rosa in 1855, Matterhorn in 1856, Dom in 1858, Weisshorn in 1861) mostly by British mountain climbers accompanied by the local guides. The construction of facilities for tourists started in the mid-nineteenth century with the building of hotels and mountain huts (creation of the Swiss Alpine Club in 1863) and the opening of mountain train lines (Rigi in 1873, Pilatus in 1889, Gornergrat in 1898). The Jungfraubahn opened in 1912; it leads to the highest railway station in Europe, the Jungfraujoch.

Summer tourism

Switzerland enjoys a 62,000-km network of well-maintained trails, of which 23,000 are located in mountainous areas. Many mountains attract a large number of

alpinists from around the world, especially the 4000-meter summits and the great north faces (Eiger, Matterhorn and Piz Badile). The large winter resorts are also popular destinations in summer, as most of aerial tramways operate through the year, enabling hikers and mountaineers to reach high altitudes without much effort. The Klein Matterhorn
is the highest summit of the European continent to be served by cable car.

Winter tourism

Main article: List of ski areas and resorts in Switzerland
Highest ski area in Europe above Zermatt

The major destinations for

Graubünden. Some villages are car-free and can be accessed only with public transports such as Riederalp and Bettmeralp.[17] Zermatt and Saas-Fee have both summer ski areas. The ski season starts from as early as November and runs to as late as May; however, the majority of ski resorts in Switzerland tend to open in December and run through to April. The most visited places are:[18]

Due to strong political will by the citizenry, Zermatt
remains car-free and retains much of its original character

Other important destinations on the regional level are

OW), Flumserberg and Pizol (both Sarganserland in SG), Toggenburg with Wildhaus – Unterwasser – Alt St. Johann (SG), Hoch-Ybrig and Stoos (all SZ), Braunwald and Elm (GL), Airolo and Bosco/Gurin (TI) and many more.[19]

The first person to ski in Grindelwald, Switzerland was Englishmen Gerald Fox (a resident of Tone Dale House in England) who put his skis on in his hotel bedroom in 1881 and walked out through the hotel Bar to the slopes wearing them.[20]

Snow activities

Some major sporting activities include:

  • Skiing
  • Snowboarding
  • Snow sled-biking
  • Downhill snow Mountain Biking
  • Snowmobiling (as well as snowmobile tours and rides)

Climate change

Climate change is impacting European Alpine tourism due to the increasing number and intensity of natural hazards, and it is endangering the accessibility and infrastructure of tourism destinations. Melting glaciers are affecting the attractiveness of the Alpine landscape, increasing winter temperatures will result in a shorter skiing season, and these climate changes are limiting the amount of snow coverage produced. All of these climate and geographical factors are leading to a smaller number of visitors and reduced revenues which can have an intense economic impact on winter tourism. In response to these changes, Switzerland has turned to the production of

artificial snow to match the demand for these tourist destinations and to uphold the structure and well-being of the economy.[21]

Transport

See also: List of mountain passes in Switzerland and List of mountain railways in Switzerland
The Glacier Express on the Landwasser Viaduct
, Albula Range
Lötschberg railway line

The Swiss Alps and Switzerland enjoy an extensive transport network. Virtually every mountain village can be reached by public transport, either by rail, bus, funicular, cable car, or usually a combination of them. The main companies of the coherently integrated public transport system are:

Most of the mountain regions are within 1 to 3 hours travel of

Graubünden is between 3 and 6 hours away from the large cities; the train journey itself, with the panoramic Glacier Express or Bernina Express
, is popular with tourists.

The

Engadin Airport near St. Moritz
at an altitude of 1,704 meters is the highest in Europe.

The crossing of the Alps is a key issue at national and international levels, as the European continent is at places divided by the range. Since the beginning of industrialisation Switzerland has improved its transalpine network; it began in 1882, by building the

Gotthard Rail Tunnel, followed in 1906 by the Simplon Tunnel and 1913 by the Lötschberg Tunnel, and more recently, in 2007, by the Lötschberg Base Tunnel. The 57.1-km long Gotthard Base Tunnel
, the longest railway tunnel of the world, opened in 2016 and provides a direct flat rail link through the Alps.

Toponymy

The different names of the mountains and other landforms are named in the

four national languages
. The table below gives the most recurrent names.

English German French Italian Romansh Examples
Mount Berg, Stock Mont Monte Munt, Cuolm Gamsberg, Dammastock, Mont Vélan, Monte Generoso, Munt Pers
Summit Gipfel Cime Cima Tschima Grenzgipfel, Cima di Gana Bianca, Tschima da Flix
Peak Spitze Pointe, Pic Pizzo Piz, Péz Lenzspitze, Pointe de Zinal, Pizzo Campo Tencia, Piz Roseg
Needle Nadel Aiguille Ago Ago, Guila Nadelhorn, Aiguille d'Argentière, Ago di Sciora
Horn Horn Corne Corno Corn Wetterhorn, Corne de Sorebois, Corn da Tinizong
Tower Turm Tour Torre Tuor
Torrone Alto
Head Kopf Tête Testa Tgau Bürkelkopf, Tête Blanche
Ridge Grat Crêt Cresta Fil, Cresta Gornergrat, Crêt du Midi, Fil de Cassons
Glacier Gletscher, Firn Glacier Ghiacciaio Glatscher, Vadret
Glatscher dil Vorab
Valley Tal Val Valle, Val Val Mattertal, Val d'Hérens, Valle Maggia
Pass Pass, Joch Col, Pas Passo Pass
Passo del San Gottardo

Also, a large number of peaks outside the Alps were named or nicknamed after Swiss mountains, such as the Wetterhorn Peak in Colorado or the Matterhorn Peak in California (see the Matterhorn article for a list of Matterhorns in the world).

The confluence of the Baltoro Glacier and the Godwin-Austen Glacier south of K2 in the Karakoram range was named after the Konkordiaplatz by European explorers.

See also

The Alps are featured on the Swiss fifty-franc banknote
since 2016.
Tourism
Sport
Other

Notes and references

  1. ^ Ball, John (1873). The Central Alps. Longmans, Green & Co.
  2. ISBN 2-606-00294-6
  3. ^ Area defined by the Alpine Convention (website: alpconv.org Archived 2011-07-29 at the Wayback Machine)
  4. Barre des Ecrins and Gran Paradiso are the only over 4,000-metre ranges not shared with Switzerland. Distance retrieved from the Swisstopo
    map
  5. ^ According to the limit defined by the Alpine Convention
  6. ^ The Swiss Prealps should not be confused with the homonymous region defined by the SOIUSA classification of the Alps, with the Schilthorn as main summit.
  7. ^ Swiss Alps in German, French and Italian in the online Historical Dictionary of Switzerland.
  8. ^ "Dam Begun in Swiss Alps to be Europe's Highest." Popular Science, November 1929, p. 61
  9. ^ Hydroelectricity((www.nytimes.com/interactive/2019/04/17/climate/switzerland-glaciers-climate-change.html))
  10. ^ Die Kantone nach ihren höchsten Punkten Archived 2006-09-08 at the Wayback Machine (in German) Various highest and lowest elevation values by canton (village center, road or rail network, etc.)
  11. ^ PERMOS monitoring((www.permos.ch/downloads/permos00-02.pdf.))
  12. doi:10.5194/tc-6-713-2012
    . Total ice volume change since 1900 is −96 ± 13 km3
  13. doi:10.5194/tc-16-3249-2022
    . This translates to a halving of glacier volume
  14. ^ "Nature parks swissworld.org". Archived from the original on 2009-06-04. Retrieved 2018-12-22.
  15. ^ Negative Impacts of Glacial Melting((lcluc.umd.edu/hotspot/glacial-retreat-alps))
  16. ^ Negative Impacts of Glacial Melting((www.myswissalps.com/aboutswitzerland/nature/environment/globalwarming))
  17. ^ There are in total 9 car-free villages members of the GAST (Gemeinschaft Autofreier Tourismusorte): Bettmeralp, Braunwald, Riederalp, Rigi, Saas-Fee, Stoos, Wengen, Mürren and Zermatt.
  18. ^ "Davos, la station la plus fréquentée de Suisse bilan.ch". Archived from the original on 2009-06-04. Retrieved 2009-06-08.
  19. ^ "Winter Sport Areas". search.ch. Retrieved 2015-11-09.
  20. ^ Skiing the Alps
  21. S2CID 129703860
    .

Bibliography

External links
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Coordinates: 46°33′33″N 8°33′41″E / 46.55917°N 8.56139°E / 46.55917; 8.56139