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Jorge Montt Glacier
Jorge Montt Glacier is a tidewater glacier located in the Aisén Region of Chile, south of the town of Caleta Tortel. It lies at the north end of the Southern Patagonian Ice Field, within Bernardo O'Higgins National Park. The mouth of Pascua River is located in the vicinity of the glacier calving front. The total drainage area of the glacier is about . The glacier's ice is thinning most at low elevations, where air temperature is the highest. Ice thinning between 1975 and 2000 averaged per year over the entire glacier, and reached per year at the lowest elevations. The glacier calving front experienced a major retreat of in those 25 years as a result of rapid thinning. The glacier calves off icebergs into the Baker Channel. In 2000, NASA wrote: ''Conventional topographic data from the 1970s and 1990s were compared with data from NASA's February 2000 Shuttle Radar Topography Mission to measure changes in the volumes of the 63 largest glaciers in the region over time. The resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jorge Montt From Landsat, 2016
Jorge is a Spanish and Portuguese given name. It is derived from the Greek name Γεώργιος (''Georgios'') via Latin ''Georgius''; the former is derived from (''georgos''), meaning "farmer" or "earth-worker". The Latin form ''Georgius'' had been rarely given in Western Christendom since at least the 6th century. The popularity of the name however develops from around the 12th century, in Occitan in the form ''Jordi'', and it becomes popular at European courts after the publication of the ''Golden Legend'' in the 1260s. The West Iberian form ''Jorge'' is on record as the name of Jorge de Lencastre, Duke of Coimbra (1481–1550). List of people with the given name Jorge * Jorge (footballer, born 1946), Brazilian footballer * Jorge (Brazilian singer), Brazilian musician and singer, Jorge & Mateus * Jorge (Romanian singer), real name George Papagheorghe, Romanian singer, actor, TV host * Jorge Betancourt, Cuban diver * Jorge Campos, Mexican football player * Jorge Cantú, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidewater Glacier
The tidewater glacier cycle is the typically centuries-long behavior of tidewater glaciers that consists of recurring periods of advance alternating with rapid retreat and punctuated by periods of stability. During portions of its cycle, a tidewater glacier is relatively insensitive to climate change. Calving rate of tidewater glaciers While climate is the main factor affecting the behavior of all glaciers, additional factors affect calving (iceberg-producing) tidewater glaciers. These glaciers terminate abruptly at the ocean interface, with large pieces of the glacier fracturing and separating, or calving, from the ice front as icebergs. Climate change causes a shift in the equilibrium line altitude (ELA) of a glacier. This is the imaginary line on a glacier, above which snow accumulates faster than it ablates, and below which, the reverse is the case. This altitude shift, in turn, prompts a retreat or advance of the terminus toward a new steady-state position. However, this ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aisén Region , one of Chile's administrative divisions
*Aysén Province, a province in the Chilean region
*Puerto Aysén, the capital city of Aysén Province
{{disambig, geo ...
Aisén or Aysén may refer to: *Aisén (name), an African name for a boy or a girl Places *Aysén, Chile, a commune in Aysén Province *Aysén Region The Aysén del General Carlos Ibáñez del Campo Region ( es, Región de Aysén, , '), often shortened to Aysén Region or Aisén,Examples of name usage1, official regional government site refers to the region as "Región de Aysén"., Chile's of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caleta Tortel, Chile
Caleta Tortel is a coastal village ( es, aldea) in Chile. It is the administrative centre of the commune of Tortel and is located between the mouth of the Baker River the largest river in Chile and a small embayment of the Baker Channel. The surrounding geography is rugged, formed by a number of islands, fjords, channels and estuaries. The village was founded in 1955 to exploit the cypress de las guaytecas or Guaytecas Cypress (Pilgerodendron uviferum) wood that was abundant in the area. The timber business accounts for most of the economy in Tortel to this day. For most of its history the village had only air and boat access; the road was constructed only in 2003, and connects Caleta Tortel with the Carretera Austral. Caleta Tortel consists mainly of stilt houses, typical of Chilotan architecture, built along the coast for several kilometers. There are no conventional streets - instead there are wooden walkways build with Guaitecas Cypress. The wooden walkways give the villag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Patagonian Ice Field
The Southern Patagonian Ice Field ( es, Hielo Continental or '), located at the Southern Patagonic Andes between Chile and Argentina, is the world's second largest contiguous extrapolar ice field. It is the bigger of two remnant parts of the Patagonian Ice Sheet, which covered all of southern Chile during the last glacial period, locally called the Llanquihue glaciation. Geography The Southern Patagonia Ice Field extends from parallels 48° 15′ S to 51° 30′ S for approximately , and has an approximate area of , of which 14,200 km2 belong to Chile and 2,600 km2 belong to Argentina. The ice mass feeds dozens of glaciers in the area, among which are the Upsala (765 km2), Viedma (978 km2) and Perito Moreno (258 km2) in the Los Glaciares National Park in Argentina, and the Pío XI Glacier or Bruggen Glacier (1,265 km2, the largest in area and longest in the southern hemisphere outside of Antarctica), O'Higgins (820 km2), Grey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernardo O'Higgins National Park
Bernardo O'Higgins National Park () is the largest of the protected areas in Chile, covering an area of in both the Aysén and Magallanes and Antártica Chilena regions. Management of this and other national parks in Chile is entrusted to the ''Corporación Nacional Forestal'' (CONAF). The park is named after General Bernardo O'Higgins, the first head of state of the Republic of Chile. Los Glaciares National Park (Argentina) and Torres del Paine National Park are its neighbours to the east, Laguna San Rafael National Park is located to the north, the Alacalufes National Reserve to the southwest and the Katalalixar National Reserve to the northwest. History The earliest occupants of the area were the Alacaluf people. In 1830, the then-Captain Phillip Parker King on board HMS ''Beagle'' visited the Eyre Fjord. In June 2007, it was announced that between March and May 2007 all the water within a glacial lake located within the park had disappeared, leaving behind a 100-foot- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pascua River
The Pascua River is a river located in the Aysén del General Carlos Ibáñez del Campo Region of Chile. In spite of being a short river, its drainage basin is the seventh-largest in the country due to the great size of the O'Higgins/San Martín Lake, its source. The Pascua River was discovered in 1898 by the German Hans Steffen, during the exploration of the area near Christmas time (''Pascua'' means Easter but is frequently used to describe Christmas in Chilean Spanish, thus explaining the origin of its name). The river has its source in the northern part of the north-west arm of the lake O'Higgins in the form of a small stream, in an area surrounded by steep-sided mountains that reach over 1,000 meters with glaciers spilling down to the lake or to the river. The river flows quickly forming rapids until it creates a cascade in the place where it falls into the Chico Lake. After leaving this lake, the river forms a new cascade and rushes furiously, preventing any type of naviga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Calving
Ice calving, also known as glacier calving or iceberg calving, is the breaking of ice chunks from the edge of a glacier.Essentials of Geology, 3rd edition, Stephen Marshak It is a form of ice ablation or ice disruption. It is the sudden release and breaking away of a mass of ice from a glacier, iceberg, ice front, ice shelf, or crevasse. The ice that breaks away can be classified as an iceberg, but may also be a growler, bergy bit, or a crevasse wall breakaway.Glossary of Glacier Terms Ellin Beltz, 2006. Retrieved July 2009. Calving of glaciers is often accompanied by a loud cracking or booming sound before blocks of ice up to high break loose and crash into the water. The entry of the ice into the water causes large, and often hazardous waves. The waves formed in locations like |
Baker Channel
Baker Channel, also known as Calen Inlet, is a channel of Chile located in the Tortel, Aysén del General Carlos Ibáñez del Campo Region. The Baker River discharges into Martinez Inlet, the northern part of this large estuary. It penetrates the mainland about and opens into Tarn Bay at the south-east corner of the Gulf of Penas. Merino Jarpa Island lies wholly within this great estuary, while at its mouth lies a group of smaller islands, called Baker Islands, which separate it from Messier Channel. Baker Channel also receives the waters of the O'Higgins/San Martín Lake through the Pascua River. The lake's far-reaching fjord-like arms extend approximately from lat. 49° 11' to 48° 22' S. Its north-west arm is that which drains into the mentioned river. The calving front of Jorge Montt Glacier, which is the northern glacier of the Southern Patagonian Ice Field, reaches the Baker Channel. A number of icebergs can be seen in this area. The channel marks the northern border ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old-growth Forest
An old-growth forestalso termed primary forest, virgin forest, late seral forest, primeval forest, or first-growth forestis a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological features, and might be classified as a climax community. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. More than one-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitat that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree height ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
