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Mount Bertha
Mount Bertha is a 10,204-foot (3,110 meter) glaciated mountain summit located in the Fairweather Range of the Saint Elias Mountains, in southeast Alaska, United States. Geography and naming The peak is situated in Glacier Bay National Park and Preserve, Glacier Bay National Park, east-northeast of Mount Crillon which is the nearest higher peak, and southeast of Mount Fairweather, which is the highest peak in the Fairweather Range. The mountain's name first appeared in 1910 when published by U.S. Coast and Geodetic Survey. The United States Geological Survey, USGS claims it was named after S.S. Bertha, an Alaska Commercial Company steamer in service from 1888 until it wrecked at Uyak Bay on July 18, 1915. However, according to Bradford Washburn of the Boston Museum of Science and American Mountaineering Museum, this feature was named for a prostitute in Skagway known by members of the International Boundary Commission who surveyed the area. Climbing history The first ascent of ... [...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] |
Barbara Washburn
Barbara Washburn (November 10, 1914 – September 25, 2014) was an American mountaineer. She became the first woman to climb Denali (Mount McKinley) on June 6, 1947. She was the wife and climbing partner of mountaineer and scientist Bradford Washburn. Early life Barbara Washburn, ''née'' Polk, grew up in the Boston-area suburb of West Roxbury, Massachusetts. She attended the Boston Girls Latin School and graduated from Smith College. As a young woman, she took courses at Harvard University and worked as a secretary for Bradford Washburn, then the director of the New England Museum of Natural History (now the Boston Museum of Science). When the Washburns announced their engagement, Barbara Washburn resigned from her job at the museum. They married on April 27, 1940, honeymooned in New Hampshire, then spent the summer on an Alaskan expedition. Mountaineering and first ascents Mount Bertha Shortly after marrying Bradford Washburn, Barbara Washburn was asked to accompany her hus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austin Post (photographer)
Austin S. Post (16 March 1922 – 12 November 2012) was a photographer, glaciologist, and mountaineer known for his aerial photography of the mountains and glaciers of North America, particularly the North Cascades of Washington and Glacier Bay, Alaska. Post worked for many years as a research scientist for the United States Geological Survey and was awarded an honorary degree from the University of Alaska-Fairbanks in 2004, despite not having graduated from high school. Many of his photographs were used in the ''Cascade Alpine Guide'' series by Fred Beckey. Post named Bradford Washburn as a photographic influence. He lived on Vashon Island, Washington. Selected publications * * * Selected ascents * First ascent of the Southeast Ridge of the White Princess, Eastern Alaska Range The Alaska Range is a relatively narrow, 600-mile-long (950 km) mountain range in the southcentral region of the U.S. state of Alaska, from Lake Clark at its southwest endSources differ as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Alaska
The geology of Alaska includes Precambrian igneous and metamorphic rocks formed in offshore terranes and added to the western margin of North America from the Paleozoic through modern times. The region was submerged for much of the Paleozoic and Mesozoic and formed extensive oil and gas reserves due to tectonic activity in the Arctic Ocean. Alaska was largely ice free during the Pleistocene, allowing humans to migrate into the Americas. Geologic History, Stratigraphy & Tectonics Compared with other areas of the North American continent, Alaska formed in the recent geologic past. Until 200 million years ago, western North America terminated at the Rocky Mountains, 120 miles further inland than the current shoreline, until the addition of the Yukon-Tanana Terrane. The Birch Creek Schist is the oldest rock in Alaska's interior and forms the core of the Yukon-Tanana Terrane with muscovite-quartz schist, mica quartzite and graphite schist. This intensely folded and rock unit extends f ... [...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] |
Glacier Bay Basin
Glacier Bay Basin in southeastern Alaska, in the United States, encompasses the Glacier Bay and surrounding mountains and glaciers, which was first proclaimed a U.S. National Monument on February 25, 1925, and which was later, on December 2, 1980, enlarged and designated as the Glacier Bay National Park and Preserve under the Alaska National Interest Lands Conservation Act, covering an area of 3,283,000 acres (1,329,000 ha). In 1986, UNESCO declared an area of 57,000 acres (23,000 ha) within a World Biosphere Reserve. This is the largest UNESCO protected biosphere in the world. In 1992, UNESCO included this area as a part of a World Heritage site, extending over an area of 24,300,000-acre (98,000 km2) which also included the Wrangell-St. Elias National Park, Kluane National Park (Canada) and Tatshenshini-Alsek Park (Canada). Part of the National Park is also designated a Wilderness area covering 2,658,000 acres (1,076,000 ha). Current glaciers cover an area 1,375 square miles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johns Hopkins Glacier
Johns Hopkins Glacier is a long glacier located in Glacier Bay National Park and Preserve in the U.S. state of Alaska. It begins on the east slopes of Lituya Mountain and Mount Salisbury, and trends east to the head of Johns Hopkins Inlet, southwest of the terminus of Clark Glacier on Mount Abbe, and northwest of Hoonah. It was named after Johns Hopkins University in Baltimore, Maryland in 1893 by Harry Fielding Reid. It is one of the few advancing tidewater glaciers of the 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 .... Access to the face of the glacier is limited to the Johns Hopkins Inlet. See also * List of glaciers References Glaciers of Glacier Bay National Park and Preserve Glaciers of Hoonah–Angoon Census Area, Alaska Johns Hopkins Unive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reid Glacier
Reid Glacier is an 11-mile-long (18 km) glacier in the U.S. state of Alaska. It trends north to Reid Inlet in Glacier Bay National Park and Preserve, two miles (3 km) south of Glacier Bay and 72 miles (116 km) northwest of Hoonah. It was named by members of the Harriman Alaska Expedition for Harry Fielding Reid. See also * List of glaciers A glacier ( ) or () is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries. Glaciers slowly deform ... Cited references Glaciers of Glacier Bay National Park and Preserve Glaciers of Hoonah–Angoon Census Area, Alaska Glaciers of Unorganized Borough, Alaska {{Alaska-glacier-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brady Glacier
Brady Glacier is a long glacier located in Glacier Bay National Park and Preserve in the U.S. state of Alaska. It begins at and trends south to Taylor Bay, 46 miles (74 km) northwest of Hoonah. It was named by the U.S. Coast and Geodetic Survey for missionary and later governor Rev. Mr Brady O'Keefe. When George Vancouver first set eyes on the Brady Glacier in 1794, it was a calving tidewater glacier that dumped ice into the Taylor Bay. The following century, the glacier advanced eight kilometers. This advance was taken by Bengston (1962) as a sign of the glacier changing from a tidal to non-tidal one. Bengston also stated that the huge outwash plain at the glacier's terminus allows it to preserve itself even as most glaciers in the region retreated. The Brady Glacier has an ELA (the line above which snow remains even after summer's end) of only 800 meters, one of the lowest in Alaska. See also * List of glaciers A glacier ( ) or () is a persistent body of dense ice ... [...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] |
