Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog can be considered a type of low-lying cloud resembling stratus, is influenced by nearby bodies of water and wind conditions. In turn, fog has affected many human activities, such as shipping and warfare; the term "fog" is distinguished from the more generic term "cloud" in that fog is low-lying, the moisture in the fog is generated locally. By definition, fog reduces visibility to less than 1 kilometre, whereas mist causes lesser impairment of visibility. For aviation purposes in the UK, a visibility of less than 5 kilometres but greater than 999 metres is considered to be mist if the relative humidity is 95% or greater. Fog forms when the difference between air temperature and dew point is less than 2.5 °C. Fog begins to form when water vapor condenses into tiny liquid water droplets that are suspended in the air. Six examples of ways that water vapor is added to the air are by wind convergence into areas of upward motion.
Water vapor begins to condense on condensation nuclei such as dust and salt in order to form clouds. Fog, like its elevated cousin stratus, is a stable cloud deck which tends to form when a cool, stable air mass is trapped underneath a warm air mass. Fog occurs at a relative humidity near 100%; this occurs from either added moisture in the air, or falling ambient air temperature. However, fog can form at lower humidities, can sometimes fail to form with relative humidity at 100%. At 100% relative humidity, the air cannot hold additional moisture, the air will become supersaturated if additional moisture is added. Fog produces precipitation in the form of drizzle or light snow. Drizzle occurs when the humidity of fog attains 100% and the minute cloud droplets begin to coalesce into larger droplets; this can occur when the fog layer is lifted and cooled sufficiently, or when it is forcibly compressed from above by descending air. Drizzle becomes freezing drizzle; the thickness of a fog layer is determined by the altitude of the inversion boundary, which in coastal or oceanic locales is the top of the marine layer, above which the air mass is warmer and drier.
The inversion boundary varies its altitude in response to the weight of the air above it, measured in terms of atmospheric pressure. The marine layer, any fogbank it may contain, will be "squashed" when the pressure is high, conversely, may expand upwards when the pressure above it is lowering. Fog can form in a number of ways, depending on how the cooling that caused the condensation occurred. Radiation fog is formed by the cooling of land after sunset by infrared thermal radiation in calm conditions with a clear sky; the cooling ground cools adjacent air by conduction, causing the air temperature to fall and reach the dew point, forming fog. In perfect calm, the fog layer can be less than a meter thick, but turbulence can promote a thicker layer. Radiation fog occurs at night, does not last long after sunrise, but it can persist all day in the winter months in areas bounded by high ground. Radiation fog is most common in early winter. Examples of this phenomenon include the Tule fog. Ground fog is fog that obscures less than 60% of the sky and does not extend to the base of any overhead clouds.
However, the term is a synonym for shallow radiation fog. Advection fog occurs when moist air is cooled, it is common. It is most common at sea when moist air encounters cooler waters, including areas of cold water upwelling, such as along the California coast. A strong enough temperature difference over water or bare ground can cause advection fog. Although strong winds mix the air and can disperse, fragment, or prevent many kinds of fog, markedly warmer and humid air blowing over a snowpack can continue to generate advection fog at elevated velocities up to 80 km/h or more – this fog will be in a turbulent moving, comparatively shallow layer, observed as a few centimeters/inches in depth over flat farm fields, flat urban terrain and the like, and/or form more complex forms where the terrain is different such as rotating areas in the lee of hills or large buildings and so on. Fog formed by advection along the California coastline is propelled onto land by one of several processes. A cold front can push the marine layer coast-ward, an occurrence most typical in the spring or late fall.
During the summer months, a low pressure trough produced by intense heating inland creates a strong pressure gradient, drawing in the dense marine layer. During the summer, strong high pressure aloft over the desert southwest in connection with the summer monsoon, produces a south to southeasterly flow which can drive the offshore marine layer up the coastline. However, if the monsoonal flow is sufficiently turbulent, it might instead break up the marine layer a
Mountaineering is the set of activities that involves ascending mountains. Mountaineering-related activities include traditional outdoor climbing, hiking and traversing via ferratas. Indoor climbing, sport climbing and bouldering are considered mountaineering as well. While mountaineering began as attempts to reach the highest point of unclimbed big mountains, it has branched into specializations that address different aspects of mountains, depending on whether the route chosen is over rock, snow, or ice or on level ground. All require various degrees of experience, athletic ability, technical knowledge to maintain safety, it is still common to seek the summits of peaks, whether unclimbed or not. Mountaineering is called alpinism, mountain climbers are sometimes called alpinists, although use of the term may vary between countries and eras; the word "alpinism" was born in the 19th century to refer to climbing for the purpose of enjoying climbing itself as a sport or recreation, distinct from climbing while hunting or as a religious pilgrimage, done at that time.
The UIAA, the International Climbing and Mountaineering Federation, is the International Olympic Committee-recognized world governing body for mountaineering and climbing, addressing issues like access, mountain protection, safety and ice climbing. Many cultures have harbored superstitions about mountains, which they regarded as sacred due to their perceived proximity with heaven, such as Mount Olympus for the Ancient Greeks. On April 26, 1336 famous Italian poet Petrarch climbed to the summit of 1,912 m Mount Ventoux overlooking the Bay of Marseilles, claiming to be inspired by Philip V of Macedon's ascent of Mount Haemo, making him the first known alpinist. One of the first European mountains visited by many tourists was Sněžka; this was due to the minor technical difficulties ascent and the fact that since the sixteenth century, many resort visitors flocked to the nearby Cieplice Śląskie-Zdrój and visible Sněžka, visually dominant over all Krkonoše was for them an important attraction. The first confirmed ascent took place in the year 1456.
In 1492 Antoine de Ville, lord of Domjulien and Beaupré, was the first to ascend the Mont Aiguille, in France, with a little team, using ladders and ropes. It appears to be the first recorded climb of any technical difficulty, has been said to mark the beginning of mountaineering. In 1573 Francesco De Marchi and Francesco Di Domenico ascended Corno Grande, the highest peak in the Apennine Mountains. During the Enlightenment, as a product of the new spirit of curiosity for the natural world, many mountain summits were surmounted for the first time.. In 1741 Richard Pococke and William Windham made a historic visit to Chamonix. In 1757 Swiss scientist Horace-Bénédict de Saussure made the first of several unsuccessful attempts on Mont Blanc in France offering a reward, claimed in 1786 by Jacques Balmat and Michel-Gabriel Paccard. By the early 19th century many of the alpine peaks were reached, including the Grossglockner in 1800, the Ortler in 1804, the Jungfrau in 1811, the Finsteraarhorn in 1812, the Breithorn in 1813.
In 1808 Marie Paradis became the first female to climb Mont Blanc, followed in 1838 by Henriette d'Angeville. The beginning of mountaineering as a sport in the UK is dated to the ascent of the Wetterhorn in 1854 by English mountaineer Sir Alfred Wills, who made mountaineering fashionable in Britain; this inaugurated what became known as the Golden age of alpinism, with the first mountaineering club - the Alpine Club - being founded in 1857. Prominent figures of the period include Lord Francis Douglas, Florence Crauford Grove, Charles Hudson, E. S. Kennedy, William Mathews, A. W. Moore, Leslie Stephen, Francis Fox Tuckett, John Tyndall, Horace Walker and Edward Whymper. Well-known guides of the era include Christian Almer, Jakob Anderegg, Melchior Anderegg, J. J. Bennen, Michel Croz, Johannes Zumtaugwald. In the early years of the "golden age", scientific pursuits were intermixed with the sport, such as by the physicist John Tyndall. In the years, it shifted to a more competitive orientation as pure sportsmen came to dominate the London-based Alpine Club and alpine mountaineering overall.
One of the most dramatic events was the spectacular first ascent of the Matterhorn in 1865 by a party led by English illustrator Edward Whymper, in which four of the party members fell to their deaths. This ascent is regarded as marking the end of the mountaineering golden age. By this point the sport of mountaineering had reached its modern form, with a body of professional guides and fixed guidelines. Mountaineering in the Americas became popular in the 1800s. In North America, Pikes Peak in the Colorado Rockies was first climbed by Edwin James and two others in 1820. Though lower than Pikes Peak, the glaciated Fremont Peak in Wyoming was thought to be the tallest mountain in the Rockies when it was first climbed by John C. Frémont and two others in 1842. Pico de Orizaba, the tallest peak in Mexico and third tallest in North America, was first climbed by U. S. military personnel which included William F. Raynolds and a half dozen other climbers in 1848. Glaciated and more technical climbs in North American were not achieved until the late 19th and early 20th centuries.
In 1897 Mount Saint Elias on the Alaska-Yukon border was summitted by the Duke of the Abruzzi and party. But it was not until 1913 that Denali, the tallest peak in North America, was climbed
Stanley Peak (Ball Range)
Stanley Peak is a 3,155 m high mountain located in the Ball Range, at the northeastern section of Kootenay National Park, in the Canadian Rocky Mountains. The mountain was named in 1901 by its first climber, the English explorer Edward Whymper, after Frederick Stanley, 16th Earl of Derby, the sixth Governor-General of Canada. There are sources that date the naming in 1912 after Stanley H. Mitchell, Secretary-Treasurer of Alpine Club of Canada; the peak is visible from the Trans-Canada Highway and Highway 93. Stanley Glacier on the northeast face of the peak can be seen up close by following a hiking trail into a hanging valley between the peak and a southern outlier of Storm Mountain. Stanley Peak can be ascended from a scrambling route by late summer but involves much routefinding among the many ledges and gullies on the north face. Climbing routes travel the north and northeast faces. There are another two peaks in British Columbia called Stanley Peak. One is 2,935 m high, located at the Squamish-Lillooet Regional District, 24 km north-west from Keyhole Falls and 62 km west from Gold Bridge.
The other is 2,030 m high, in the Stikine Region. Stanley Peak is composed of sedimentary rock laid down from the Precambrian to Jurassic periods, pushed east and over the top of younger rock during the Laramide orogeny. Based on the Köppen climate classification, the mountain is located in a subarctic climate with cold, snowy winters, mild summers. Temperatures can drop below -20 °C with wind chill factors below -30 °C. Edward Whymper Mount Whymper Geology of the Rocky Mountains
Germany the Federal Republic of Germany, is a country in Central and Western Europe, lying between the Baltic and North Seas to the north, the Alps to the south. It borders Denmark to the north and the Czech Republic to the east and Switzerland to the south, France to the southwest, Luxembourg and the Netherlands to the west. Germany includes 16 constituent states, covers an area of 357,386 square kilometres, has a temperate seasonal climate. With 83 million inhabitants, it is the second most populous state of Europe after Russia, the most populous state lying in Europe, as well as the most populous member state of the European Union. Germany is a decentralized country, its capital and largest metropolis is Berlin, while Frankfurt serves as its financial capital and has the country's busiest airport. Germany's largest urban area is the Ruhr, with its main centres of Essen; the country's other major cities are Hamburg, Cologne, Stuttgart, Düsseldorf, Dresden, Bremen and Nuremberg. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity.
A region named Germania was documented before 100 AD. During the Migration Period, the Germanic tribes expanded southward. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation. After the collapse of the Holy Roman Empire, the German Confederation was formed in 1815; the German revolutions of 1848–49 resulted in the Frankfurt Parliament establishing major democratic rights. In 1871, Germany became a nation state when most of the German states unified into the Prussian-dominated German Empire. After World War I and the revolution of 1918–19, the Empire was replaced by the parliamentary Weimar Republic; the Nazi seizure of power in 1933 led to the establishment of a dictatorship, the annexation of Austria, World War II, the Holocaust. After the end of World War II in Europe and a period of Allied occupation, Austria was re-established as an independent country and two new German states were founded: West Germany, formed from the American and French occupation zones, East Germany, formed from the Soviet occupation zone.
Following the Revolutions of 1989 that ended communist rule in Central and Eastern Europe, the country was reunified on 3 October 1990. Today, the sovereign state of Germany is a federal parliamentary republic led by a chancellor, it is a great power with a strong economy. As a global leader in several industrial and technological sectors, it is both the world's third-largest exporter and importer of goods; as a developed country with a high standard of living, it upholds a social security and universal health care system, environmental protection, a tuition-free university education. The Federal Republic of Germany was a founding member of the European Economic Community in 1957 and the European Union in 1993, it is part of the Schengen Area and became a co-founder of the Eurozone in 1999. Germany is a member of the United Nations, NATO, the G7, the G20, the OECD. Known for its rich cultural history, Germany has been continuously the home of influential and successful artists, musicians, film people, entrepreneurs, scientists and inventors.
Germany has a large number of World Heritage sites and is among the top tourism destinations in the world. The English word Germany derives from the Latin Germania, which came into use after Julius Caesar adopted it for the peoples east of the Rhine; the German term Deutschland diutisciu land is derived from deutsch, descended from Old High German diutisc "popular" used to distinguish the language of the common people from Latin and its Romance descendants. This in turn descends from Proto-Germanic *þiudiskaz "popular", derived from *þeudō, descended from Proto-Indo-European *tewtéh₂- "people", from which the word Teutons originates; the discovery of the Mauer 1 mandible shows that ancient humans were present in Germany at least 600,000 years ago. The oldest complete hunting weapons found anywhere in the world were discovered in a coal mine in Schöningen between 1994 and 1998 where eight 380,000-year-old wooden javelins of 1.82 to 2.25 m length were unearthed. The Neander Valley was the location where the first non-modern human fossil was discovered.
The Neanderthal 1 fossils are known to be 40,000 years old. Evidence of modern humans dated, has been found in caves in the Swabian Jura near Ulm; the finds included 42,000-year-old bird bone and mammoth ivory flutes which are the oldest musical instruments found, the 40,000-year-old Ice Age Lion Man, the oldest uncontested figurative art discovered, the 35,000-year-old Venus of Hohle Fels, the oldest uncontested human figurative art discovered. The Nebra sky disk is a bronze artefact created during the European Bronze Age attributed to a site near Nebra, Saxony-Anhalt, it is part of UNESCO's Memory of the World Programme. The Germanic tribes are thought to date from the Pre-Roman Iron Age. From southern Scandinavia and north Germany, they expanded south and west from the 1st century BC, coming into contact with the Celtic tribes of Gaul as well
Climbing is the activity of using one's hands, feet, or any other part of the body to ascend a steep object. It is done for locomotion and competition, in trades that rely on it, in emergency rescue and military operations, it is done indoors and out, on man-made structures. Guides, such as professional mountain guides, have been an essential element of pursuing the sport in the natural environment, remain so today. Climbing activities include: Bouldering: Ascending boulders or small outcrops with climbing shoes and a chalk bag or bucket. Instead of using a safety rope from above, injury is avoided using a crash pad and a human spotter Buildering: Ascending the exterior skeletons of buildings without protective equipment. Canyoneering: Climbing along canyons for sport or recreation. Chalk climbing: Ascending chalk cliffs uses some of the same techniques as ice climbing. Competition climbing: A formal, competitive sport of recent origins practiced on artificial walls that resemble natural formations.
The International Federation of Sport Climbing is the official organization governing competition rock climbing worldwide and is recognized by the IOC and GAISF and is a member of the International World Games Association. The UIAA is the official organization governing competition ice climbing worldwide. Competition climbing has three major disciplines: Lead and Speed. Free Climbing: a form of rock climbing in which the climber uses climbing equipment such as ropes and other means of climbing protection, but only to protect against injury during falls and not to assist progress. Ice climbing: Ascending ice or hard snow formations using special equipment ice axes and crampons. Techniques of protecting the climber are similar to those of rock climbing, with protective devices adapted to frozen conditions. Indoor climbing: Top roping, lead climbing, bouldering artificial walls with bolted holds in a climbing gym. Ladder climbing: Climbing ladders for exercise; this may involve climbing up and down the underside of a ladder, or along a horizontally aligned ladder or'monkey bars'.
The ladder may be climbed going backwards, or sideways. Lumberjack tree-trimming and competitive tree-trunk or pole climbing for speed using spikes and belts. Mallakhamba: A traditional Indian sport which combines climbing a pole or rope with the performance of aerial Yoga and gymnastics. Mountaineering: Ascending mountains for sport or recreation, it involves rock and/or ice climbing. Pole climbing: Climbing poles and masts without equipment. Rock climbing: Ascending rock formations using climbing shoes and a chalk bag. Equipment such as ropes, nuts and camming devices are employed, either as a safeguard or for artificial aid. Rope access: Industrial climbing abseiling, as an alternative to scaffolding for short works on exposed structures. Rope climbing: Climbing a short, thick rope for speed. Not to be confused with roped climbing, as in rock or ice climbing. Scrambling which includes easy rock climbing, is considered part of hillwalking. Sport climbing is a form of rock climbing that relies on permanent anchors fixed to the rock, bolts, for protection.
Top roping: Ascending a rock climbing route protected by a rope anchored at the top and protected by a belayer below Traditional climbing is a form of climbing without fixed anchors and bolts. Climbers place removable protection such as camming devices and other passive and active protection that holds the rope to the rock in the event of a fall and/or when weighted by a climber. Solo climbing: Solo climbing or soloing is a style of climbing in which the climber climbs alone, without somebody belaying them; when free soloing, an error is fatal as no belay systems are being used. Soloing can be self-belayed, hence minimizing the risks. Tree climbing: Recreationally ascending trees using ropes and other protective equipment. A tower climber is a professional who climbs broadcasting or telecommunication towers or masts for maintenance or repair. Rock and tree climbing all utilize ropes for safety or aid. Pole climbing and rope climbing were among the first exercises to be included in the origins of modern gymnastics in the late 18th century and early 19th century.
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