Snow grooming

Last updated
A snow groomer for alpine slopes with plow, a surface finishing attachment for ski slopes, and a cable winch for grooming steep slopes Oberstdorf Germany Nebelhornbahn-Snow-groomer-01.jpg
A snow groomer for alpine slopes with plow, a surface finishing attachment for ski slopes, and a cable winch for grooming steep slopes
A snow groomer for cross-country trails with snow plow and attachments for the skate and classical lanes. Latukone.jpg
A snow groomer for cross-country trails with snow plow and attachments for the skate and classical lanes.
A groomed alpine skiing piste or trail Poranne narty - panoramio.jpg
A groomed alpine skiing piste or trail
A groomed cross-country trail, showing corduroy for skate-skiing and classic tracks (left) Skate skiing track.jpg
A groomed cross-country trail, showing corduroy for skate-skiing and classic tracks (left)

Snow grooming is the process of manipulating snow for recreational uses with a tractor, snowmobile, piste caterpillar, truck or snowcat towing specialized equipment. The process is used to maintain ski hills, cross-country ski trails and snowmobile trails by grooming (moving, flattening, rototilling, or compacting) the snow on them. A variation of the technique is used to construct snow runways in Antarctica.

Contents

A snow groomer is usually employed to pack snow and improve skiing and snowboarding and snowmobile trail conditions. The resulting pattern on the snow is known as corduroy, [1] and is widely regarded as a good surface on which to ski or ride. Snow groomers can also move accumulated snow made by snow machines as part of a process, called "snow farming".

Snow groomer

A snow groomer (informally called a "piste basher" in the United Kingdom) [2] [3] is a tracked vehicle equipped in front with a shovel (or dozer blade) and behind with a cutter (or roller). It is usually driven by diesel engines. When the machine drives over a snowfield, it pushes snow ahead of it and, at the same time, smooths out any surface unevenness.

Snow groomers built for ski slopes employ front mounted, hydraulically operated blades, powered rotary tillers and specialized shaping equipment for not only maintaining ski slopes, but also for building half pipes, ski/snowboard terrain parks and snow tube parks. Cross-country skiing trails are also groomed in similar fashion, often with a wide "corduroy" area that allows skate-skiing plus classic ski tracks, imprinted with specialized ski guides. [4] Manufacturers include Formatic, Kässbohrer Geländefahrzeug, Prinoth, Ratrak, Logan Machine Company, Tucker Sno-Cat, Snow Trac, Thiokol, the Ohara Corporation (Japan) and Aztec, SAS (France).

Snow groomers can handle very steep gradients due to their low centre of gravity and large contact area, but they can also be assisted by winches. Using cable lengths of up to 1,200 metres and a tractive force of up to 4.8 tonnes, winches can support the machines on steep slopes. [5]

Snow groomers warn skiers and snowboarders with visual or acoustic signals. Groomers are mostly sent out during the night time after the close of the ski area so as not to interfere with daily and night skiing. [6]

Due to their mobility and low ground pressure (typically 0.040 to 0.060 kg/cm2 (about 4 to 6 kN/m2) snow groomers are sometimes used elsewhere, e.g. for agricultural purposes, moving bulk goods, working on peat bogs or at biogas sites. [7]

Snow grooming equipment

Snow grooming equipment that is usually towed by vehicle like Side-by-Side, UTV, or Snow Mobile and is used for snow grooming narrow paths, laying Nordic and Cross-country ski trails, Fat bike trails. These small and practical snow groomers are excellent for making delicate corduroy trails that a large snow groomer cannot access. [8]

Snow farming

Snow farming is the use of obstacles, equipment and knowledge about management of snow in order to strategically manipulate snow coverage. Often this is done for the purpose of skiing or even preventing snow drift in certain areas like roads. The most popular obstacle is the snow fence, which is used to create drifts and collect more snow in a given area than would otherwise naturally occur. The snow can be moved to other areas and groomed with the use of a snow groomer. Sometimes the snow fence is readily movable in order to maximize the collection of blown snow, despite wind direction changes. [9] [10] In Mora, Minnesota, the annual Vasaloppet USA cross-country ski race would be unable to happen without the use of snow farming due to lack of natural snow in recent years. [11]

Snow runway construction

Snow grooming is used in construction and maintenance of airstrips to support research stations in Antarctica. U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) researchers described the engineering parameters necessary to make improvements to natural snow for use in landing fields. [12] One level of improvement is used to support aircraft with skis. [13] In 2016, CRREL researchers perfected field preparation practices that allow for use of heavy military transport and other wheeled aircraft on snow runways in Antarctica. Proof-of-concept tests employed a C-17. Wheeled aircraft capability exists at the US McMurdo Station and ski landings are routine at the Australian Davis Station. [14]

Related Research Articles

<span class="mw-page-title-main">Cross-country skiing</span> Form of snow skiing

Cross-country skiing is a form of skiing whereby skiers traverse snow-covered terrain without use of ski lifts or other assistance. Cross-country skiing is widely practiced as a sport and recreational activity; however, some still use it as a means of transportation. Variants of cross-country skiing are adapted to a range of terrain which spans unimproved, sometimes mountainous terrain to groomed courses that are specifically designed for the sport.

<span class="mw-page-title-main">Skiing</span> Recreational activity and sport using snow skis

Skiing is the use of skis to glide on snow. Variations of purpose include basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International Ski and Snowboard Federation (FIS).

<span class="mw-page-title-main">Snowboarding</span> Snow sport involving a single board

Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games.

<span class="mw-page-title-main">Alpine skiing</span> Sport of skiing downhill

Alpine skiing, or downhill skiing, is the pastime of sliding down snow-covered slopes on skis with fixed-heel bindings, unlike other types of skiing, which use skis with free-heel bindings. Whether for recreation or for sport, it is typically practiced at ski resorts, which provide such services as ski lifts, artificial snow making, snow grooming, restaurants, and ski patrol.

<span class="mw-page-title-main">Ski resort</span> Resort developed for skiing, snowboarding, and other winter sports

A ski resort is a resort developed for skiing, snowboarding, and other winter sports. In Europe, most ski resorts are towns or villages in or adjacent to a ski area – a mountainous area with pistes and a ski lift system. In North America, it is more common for ski areas to exist well away from towns, so ski resorts usually are destination resorts, often purpose-built and self-contained, where skiing is the main activity.

<span class="mw-page-title-main">Obertauern</span> Winter sports resort in Austria

Obertauern is a tourist destination which is located in the Radstädter Tauern in the Salzburger Land of Austria. The winter sports resort is separated in two communities: Tweng and Untertauern.

<span class="mw-page-title-main">Les Trois Vallées</span> Ski region in France

Les Trois Vallées is a ski region in the Tarentaise Valley in the Savoie department of Southeastern France, to the south of the town of Moûtiers, partly in Vanoise National Park.

<span class="mw-page-title-main">Backcountry skiing</span> Skiing in unmarked or unpatrolled areas

Backcountry skiing (US), also called off-piste (Europe), alpine touring, freeriding or out-of-area, is skiing in the backcountry on unmarked or unpatrolled areas either inside or outside a ski resort's boundaries. This contrasts with alpine skiing, which is typically done on groomed trails benefiting from a ski patrol. Unlike ski touring, backcountry skiing can - and often does - include the use of ski lifts including snowcats and helicopters. Recent improvements in equipment have increased the popularity of the sport. As the sport does confront the individual practicing it with the dangers of natural, unprepared alpine terrain like avalanches, it is generally recommended to carry standard safety equipment and to learn beforehand how to behave safely under such conditions.

<span class="mw-page-title-main">Snowcat</span> Enclosed-cab, truck-sized, fully tracked vehicle designed to move on snow

A snowcat is an enclosed-cab, truck-sized, fully tracked vehicle designed to move on snow. Major manufacturers are PistenBully (Germany), Prinoth (Italy) and Tucker.

<span class="mw-page-title-main">Piste</span> Marked ski run

A piste is a marked ski run or path down a mountain for snow skiing, snowboarding, or other mountain sports.

<span class="mw-page-title-main">Badger Pass Ski Area</span> Ski area in California, United States

Badger Pass Ski Area is a small ski area located within Yosemite National Park. Badger Pass is one of only three lift serviced ski areas operating in a US National Park. It is situated five miles (8 km) south-southeast of the Chinquapin intersection of Wawona Road with Glacier Point Road in the southern area of Yosemite National Park. Glacier Point Road provides the access to this ski area. During high snow level and/or ski season, Glacier Point road terminates at Badger Pass Ski Resort. Under these conditions, the remainder of Glacier Point Road is used for cross-country skiing access to Glacier Point and other destinations in the high country.

<span class="mw-page-title-main">La Mongie</span>

The village of La Mongie is at 1,800 m (5,900 ft) altitude. There are also residences at 1850 and the Tourmalet building at 1900. It lies below the Col du Tourmalet 2,115 m (6,939 ft). It is in the canton of Campan in the Midi-Pyrénées region of France and around 20 kilometres (12 mi) from the Spanish border. La Mongie is a winter ski resort offering alpine skiing, snowboarding, snowpark, cross-country skiing, snowmobiles and hiking in snowshoes. In the summer cycling and the use of trials motorcycles is popular. The village has two small supermarkets, a tourist information centre, gift shops and many restaurants and ski rental shops. The nearby spa town of Bagnères-de-Bigorre offers large supermarkets and shops, restaurants, a casino, an 18-hole golf course and the natural spa baths themselves.

<span class="mw-page-title-main">Montgenèvre</span> Commune in Provence-Alpes-Côte dAzur, France

Montgenèvre is a commune on the Italian border in the Hautes-Alpes department in the Provence-Alpes-Côte d'Azur region in Southeastern France.

<span class="mw-page-title-main">Backcountry snowboarding</span>

Backcountry snowboarding is snowboarding in a sparsely inhabited rural region over ungroomed and unmarked slopes or pistes in the backcountry, frequently amongst trees, usually in pursuit of fresh fallen snow, known as powder. Often, the land and the snow pack are not monitored, patrolled, or maintained. Fixed mechanical means of ascent such as ski lifts are typically not present, but alternative means such as splitboarding, hiking, snowshoeing and helicopters ("heliskiing") are sometimes used to reach the mountain's peak.

<span class="mw-page-title-main">Outline of skiing</span> Overview of and topical guide to skiing

The following outline is provided as an overview of and topical guide to skiing:

<span class="mw-page-title-main">Neumayer-Station III</span> Antarctic base

Neumayer-Station III, also known as Neumayer III after geophysicist Georg von Neumayer, is a German Antarctic research station of the Alfred-Wegener-Institut. It is located on the approximately 200 metres (660 ft) thick Ekström Ice Shelf several kilometres south of Neumayer-Station II. The station's assembly kit was transported to its current position early in November 2007. It is moving with the shelf ice at about 157 meters (515 ft) per year towards the open sea.

White Grass Ski Touring Center is a cross-country skiing facility located in Canaan Valley in Tucker County, West Virginia. It originally opened in 1979 on White Grass Knob near Harrisonburg, Virginia. Two years later, the operation was moved to the site of the second Weiss Knob Ski Area. The resort uses Weiss Knob's former lodge as its day lodge; it is one of the oldest dedicated cross country ski areas in the United States. Because of its status as a former downhill slope, White Grass is an unusually steep cross country area, with nearly 1,200 feet (370 m) of vertical rise—more than at neighboring downhill slope Canaan Valley Resort State Park. Its 45 trails are rated approximately 30% easy, 55% intermediate, 15% most difficult; climbs are available to the summit of 4,436-foot (1,352 m) Weiss Knob by intermediate skiing, and to 4,308-foot (1,313 m) Bald Knob via easier or intermediate trails. White Grass staff also conduct free natural history snowshoe tours each Sunday into the Canaan Valley Fish and Wildlife Refuge.

Mont-Sainte-Anne is a ski resort in eastern Canada, located in the town of Beaupré, Quebec, about 40 km (25 mi) northeast of Quebec City. The mountain is part of the Laurentian mountain chain and has a summit elevation of 800 m (2,625 ft) above sea level with a vertical drop of 625 m (2,051 ft).

<span class="mw-page-title-main">Cross-country skiing trail</span>

A cross-country skiing trail or loipe is a route that has been laid out, constructed and maintained specifically for cross-country skiing. Trails may extend point-to-point, but are more typically loops for recreational use or for competition. Until the mid-20th Century, trails were tracked by the passage of skiers. More recently, snow groomers set tracks for classic skiing and smooth lanes for skate skiing.

This glossary of skiing and snowboarding terms is a list of definitions of terms and jargon used in skiing, snowboarding, and related winter sports.

References

  1. Lockwood, Auguste, Corduroy for Groomed Trails , retrieved 2020-10-04
  2. "Piste basher". Cambridge English Dictionary. 2019. Retrieved 2019-07-26.
  3. Martin, Iain (2018-10-02). "Meet the world's first wheelchair-bound piste basher driver fulfilling his childhood dream". The Telegraph. ISSN   0307-1235 . Retrieved 2019-08-19.
  4. Older, Jules (1998). Cross-Country Skiing for Everyone . Stackpole Books. p.  87. ISBN   9780811727082. snow grooming.
  5. Neue Windentechnologie für steilste Hänge (Sherpa-Winde, Prinoth) ISR Internationale Seilbahn-Rundschau 22 April 2011, retrieved 5 September 2014
  6. Snowmakers, snowmaking prevail when Mother Nature is uncooperative Archived 2007-10-08 at the Wayback Machine - Pocahontas Times - Mountain Times, Vol. 6 No. 2 February 2007
  7. Pistenraupen zum Bewegen von Hackgut TEST Pistenraupe Prinoth LH 500, Anwender: Thermo Wipptal AG, ([photos dated 15 June 2011), retrieved 5 September 2014
  8. "Types of Snow Groomers". 28 November 2022. Retrieved 2022-12-06.
  9. Agrawala, Shardul (2007), Climate Change in the European Alps Adapting Winter Tourism and Natural Hazards Management: Adapting Winter Tourism and Natural Hazards Management, Environment & Sustainable Development, Paris: OECD Publishing, p. 136, ISBN   9789264031692
  10. Nelson, Janet (February 1973), "Groom Boom", Ski Magazine, p. 47, retrieved 2017-05-09
  11. "In Northern Minnesota, 'Snow Farmers' Make Sure A Ski-Racing Tradition Endures". NPR.org. Retrieved 2019-02-11.
  12. Vinson, Ted S.; Rooney, James W.; Haas, Wilbur H. (1996-01-01). Roads and Airfields in Cold Regions: A State of the Practice Report. ASCE Publications. pp. 91–94. ISBN   978-0-7844-7412-9.
  13. This week at Davis: 18 January 2019 Australian Antarctic Division. Retrieved 23 January 2023.
  14. Caruso, Aimee (18 December 2016). "CRREL Engineers Build Runway in Antarctica". The Valley News . Retrieved 23 January 2023.