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Mount Dagelet
Mount Dagelet is a glaciated mountain summit located in the Fairweather Range of the Saint Elias Mountains, in southeast Alaska, United States. The peak is situated in Glacier Bay National Park, south of Mount Crillon, and northwest of Mount La Perouse, which is the nearest highest peak. Topographic relief is significant as the mountain rises up from tidewater in less than nine miles. The mountain was named in 1874 by William Healey Dall of the U.S. Geological Survey, for Joseph Lepaute Dagelet (1751-1788), a French astronomer and mathematician who accompanied Lapérouse when he explored this coastal area in 1786. The first ascent of the peak was made July 29, 1933, by W. S. Child, C. S. Houston, and H. A. Carter. Climate Based on the Köppen climate classification, Mount Dagelet has a subarctic climate with cold, snowy winters, and cool summers. Weather systems coming off the Gulf of Alaska are forced upwards by the Fairweather Range (orographic lift), causing heavy prec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairweather Range
The Fairweather Range is the unofficial name for a mountain range located in the U.S. state of Alaska and the Canadian province of British Columbia. It is the southernmost range of the Saint Elias Mountains. The northernmost section of the range is situated in Tatshenshini-Alsek Provincial Park while the southernmost section resides in Glacier Bay National Park, in the Hoonah-Angoon Census Area. In between it goes through the southeastern corner of Yakutat Borough. Peaks of this range include Mount Fairweather (the highest point in British Columbia) and Mount Quincy Adams . The range is home to the Fairweather Fault, an active geologic transform fault of the larger Queen Charlotte Fault along the boundary between the Pacific and North American plates. Mountains *Mount Crillon *Mount Fairweather *Mount La Perouse *Mount Orville * Mount Quincy Adams * Mount Wilbur Panorama See also *Alsek Ranges - mountain range to the east *Centennial Range The Centennial Range is a sub-rang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Lepaute Dagelet
Joseph Lepaute Dagelet (1751–1788) was a French astronomer, clockmaker and mathematician who accompanied Lapérouse on his scientific circumnavigation, in the course of which he perished in the final shipwreck of the expedition. Dagelet's astronomical sightings gave precision to the maps posthumously published in the official ''Atlas du Voyage de la Perouse'' (Paris: L'Imprimerie de la Republique, An V, 1797). Young Dagelet arrived in Paris in 1767, welcomed by his uncles the renowned clockmakers Jean-André and Jean-Baptiste Lepaute, who held the brevet ''horlogers du Roi''. Through his aunt, Nicole-Reine Lepaute, wife of Jean-André, he discovered his aptitude for astronomy. From his arrival until 1772 he studied in the observatory of the Collège Mazarin, where he was guided by Joseph Jérôme Lefrançois de Lalande. In 1773 he departed for the South Seas with the expedition of Yves Joseph de Kerguelen de Trémarec; on his return he was made professor of mathematics at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Hoonah–Angoon Census Area, Alaska
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Glacier Bay National Park And Preserve
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography Of Alaska
Alaska occupies the northwestern portion of the North American continent and is bordered only by Canada on the east. It is one of two U.S. states not bordered by another state; Hawaii is the other. Alaska has more ocean coastline than all of the other U.S. states combined. About of Canadian territory separate Alaska from Washington state. Alaska is thus an exclave of the United States that is part of the continental U.S. and the U.S. West Coast, but is not part of the contiguous U.S. Alaska is also the only state, other than Hawaii, whose capital city is accessible only via ship or air, because no roads connect Juneau to the rest of the continent. The state is bordered by Yukon and British Columbia, Canada to the east, the Gulf of Alaska and the Pacific Ocean to the south, Russia ( Chukotka Autonomous Okrug), Bering Sea, the Bering Strait, and Chukchi Sea to the west, and the Beaufort Sea and the Arctic Ocean to the north. Because it extends into the Eastern Hemisphere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orographic Lift
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and create clouds and, under the right conditions, precipitation. Orographic lifting can have a number of effects, including precipitation, rain shadowing, leeward winds, and associated clouds. Precipitation Precipitation induced by orographic lift occurs in many places throughout the world. Examples include: * The Mogollon Rim in central Arizona * The western slope of the Sierra Nevada range in California * The mountains near Baja California North – specifically La Bocana to Laguna Hanson. * The windward slopes of Khasi and Jayantia Hills (see Mawsynram) in the state of Meghalaya in India. * The Western Highlands of Yemen, which receive by far the most rain in Arabia. * The Western Ghats that run along India's western coast. * The Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Alaska
The Gulf of Alaska (Tlingit: ''Yéil T'ooch’'') is an arm of the Pacific Ocean defined by the curve of the southern coast of Alaska, stretching from the Alaska Peninsula and Kodiak Island in the west to the Alexander Archipelago in the east, where Glacier Bay and the Inside Passage are found. The Gulf shoreline is a combination of forest, mountain and a number of tidewater glaciers. Alaska's largest glaciers, the Malaspina Glacier and Bering Glacier, spill out onto the coastal line along the Gulf of Alaska. The coast is heavily indented with Cook Inlet and Prince William Sound, the two largest connected bodies of water. It includes Yakutat Bay and Cross Sound. Lituya Bay (a fjord north of Cross Sound, and south of Mount Fairweather) is the site of the largest recorded tsunami in history. It serves as a sheltered anchorage for fishing boats. Ecology The Gulf of Alaska is considered a Class I, productive ecosystem with more than 300 grams of carbon per square meter per year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subarctic Climate
The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50° to 70°N, poleward of the humid continental climates. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification ''Dfc'', ''Dwc'', ''Dsc'', ''Dfd'', ''Dwd'' and ''Dsd''. Description This type of climate offers some of the most extreme seasonal temperature variations found on the planet: in winter, temperatures can drop to below and in summer, the temperature may exceed . However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least to fall into this category of climate, and the coldest month should ave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crillon Dagelet
Crillon may refer to: People * Louis des Balbes de Berton de Crillon Places * Hôtel de Crillon, a hotel in Paris Crillon is the name or part of the name of several communes in France: * Crillon, Oise, in the Oise ''département'' * Crillon-le-Brave, in the Vaucluse ''département'' * Cape Crillon Cape Crillon (russian: Мыс Крильон, ja, 西能登呂岬 "Nishinotoro-misaki" (Cape Nishinotoro in Japanese), ) is the southernmost point of Sakhalin. The cape was named by Frenchman Jean-François de La Pérouse, who was the first Europe ..., the southernmost point of Sakhalin, in Russia. * Crillon Tours, DMC and largest Tour Operator in Bolivia {{disambiguation mg:Crillon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Snead Houston
Charles Snead Houston (August 24, 1913 – September 27, 2009) was an American physician, mountaineer, high-altitude investigator, inventor, author, film-maker, and former Peace Corps administrator. He made two important and celebrated attempts to climb the mountain K2 in the Karakoram Range. Early life and education Houston was born in New York in 1913 and grew up in Great Neck on Long Island. He was educated at The Hotchkiss School and Harvard University, and he earned a Doctor of Medicine from Columbia University College of Physicians and Surgeons. Mountaineering Houston began climbing in the Alps with his father where they met Scottish mountaineer T. Graham Brown. He then gained experience on several expeditions to Canada and America making the second ascent of Mount Foraker in 1934, with T. Graham Brown and Chychele Waterston. In 1936, Houston was a member of the British–American Himalayan Expedition led by the British climber H.W. Tilman to the top of Nanda De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-François De Galaup, Comte De Lapérouse
Jean François de Galaup, comte de Lapérouse (; variant spelling: ''La Pérouse''; 23 August 17411788?), often called simply Lapérouse, was a French naval officer and explorer. Having enlisted at the age of 15, he had a successful naval career and in 1785 was appointed to lead a scientific expedition around the world. His ships stopped in Chile, Hawaii, Alaska, California, Mauritius, Reunion, Macau, Japan, Russia, and Australia, before wrecking on the reefs of Vanikoro in the Solomon Islands. Early career Jean-François de Galaup was born near Albi, France. His family was ennobled in 1558. Lapérouse studied in a Jesuit college, and joined the Navy as a Garde-Marine in Brest on 19 November 1756. In 1757 he was appointed to the French ship ''Célèbre'' and participated in a supply expedition to the fort of Louisbourg in New France. Lapérouse also took part in a second supply expedition in 1758 to Louisbourg, but as this was in the early years of the Seven Years' War, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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