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GISP2
The Greenland Ice Sheet Project (GISP) was a decade-long project to drill ice cores in Greenland that involved scientists and funding agencies from Denmark, Switzerland and the United States. Besides the U.S. National Science Foundation (NSF), funding was provided by the Swiss National Science Foundation and the Danish Commission for Scientific Research in Greenland. The ice cores provide a proxy archive of temperature and atmospheric constituents that help to understand past climate variations. The preliminary GISP field work started in 1971 at Dye 3 (), where a 372 meter deep, 10.2 cm diameter core was recovered. After this, annual field expeditions were carried out to drill intermediate depth cores at various locations on the ice sheet. The first was a 398 m core at Milcent and another was a 405 m core at the Crete station in 1974. After working out various logistical and engineering problems related to the development of a more sophisticated drilling rig, drilling to bed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dye 3
Dye 3 is an ice core site and previously part of the DYE section of the Distant Early Warning (DEW) line, located at (, 2480 masl) in Greenland. As a DEW line base, it was disbanded in years 1990/1991. An ice core is a core sample from the accumulation of snow and ice that has re-crystallized and trapped air bubbles over many years. The composition of these ice cores, especially the presence of hydrogen and oxygen isotopes, provides a picture of the climate at the time. Ice cores contain an abundance of climate information. Inclusions in the snow, such as wind-blown dust, ash, bubbles of atmospheric gas and radioactive substances, remain in the ice. The variety of climatic proxies is greater than in any other natural recorder of climate, such as tree rings or sediment layers. These include (proxies for) temperature, ocean volume, precipitation, chemistry and gas composition of the lower atmosphere, volcanic eruptions, solar variability, sea-surface productivity, desert extent a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland Ice Core Project
The Greenland Ice Core Project (GRIP) was a research project organised through the European Science Foundation (ESF). The project ran from 1989 to 1995, with drilling seasons from 1990 to 1992. In 1988, the project was accepted as an ESF-associated program, and in the summer of 1989, the fieldwork was started in Greenland. GRIP aimed to collect and investigate 3000-metre-long ice cores drilled at the apex of the Greenland ice sheet, also known as Summit Camp. The Greenland ice sheet comprises more than 90% of the total ice sheet and glacier ice outside Antarctica. The project was managed by a Steering Committee of the University of Bern's Physics Institute, chaired by Professor Bernhard Stauffer. Funding came from eight European nations (Belgium, Denmark, France, Germany, Iceland, Italy, Switzerland, and United Kingdom), and from the European Union. Studies of nuclear isotopes and various atmospheric constituents provided by the cores allowed the team to construct detailed rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Ice Core Laboratory
The National Science Foundation Ice Core Facility (NSF-ICF), known as the National Ice Core Laboratory (NICL) before 2018, is the primary repository for ice cores collected by the United States. The facility is located at the Denver Federal Center in Lakewood, Colorado, and is managed by the United States Geological Survey (USGS). Funding for the facility comes from the National Science Foundation Office of Polar Programs, while scientific research is managed by the University of New Hampshire. NSF-ICF currently houses ~22,000 m of ice cores collected from Greenland and Antarctica, including the GISP2, Siple Dome, and portions of the Vostok cores. It is the lead facility for management of the West Antarctic Ice Sheet (WAIS) Divide ice core. In addition to providing a large storage facility, maintained at -35 ° C, NSF-ICF also has one of the largest sub-zero research and sample preparation spaces in the world. NSF-ICF is responsible for distributing samples of ice cores in their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Greenland Ice Core Project
The drilling site of the North Greenland Ice Core Project (NGRIP or NorthGRIP) is near the center of Greenland (75.1 N, 42.32 W, 2917 m, ice thickness 3085). Drilling began in 1999 and was completed at bedrock in 2003. The cores are cylinders of ice 11 centimeters in diameter that were brought to the surface in 3.5-meter lengths. The NGRIP site was chosen to extract a long and undisturbed record stretching into the last glacial, and it succeeded. The site was chosen for a flat basal topography to avoid the flow distortions that render the bottom of the GRIP and GISP cores unreliable. Unusually, there is melting at the bottom of the NGRIP core - believed to be due to a high geothermal heat flux locally. This has the advantage that the bottom layers are less compressed by thinning than they would otherwise be: NGRIP annual layers at 10.5 kyr age are 1.1 cm thick, twice the GRIP thicknesses at equal age. The NGRIP record helps to resolve a problem with the GRIP and GISP2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summit Camp
Summit Camp, also Summit Station, is a year-round staffed research station near the apex of the Greenland ice sheet. The station is located at above sea level. The population of the station is typically five in wintertime and reaches a maximum of 38 in the summer. The station is operated by the United States National Science FoundationArctic Logistics Information And Support (ALIAS) through the logistical-support contractor Battelle Arctic Research Operations (Battelle ARO). A permit from the Danish Polar Center ( da, Dansk Polarcenter) under the auspices of the Home R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Core
An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper ones, and an ice core contains ice formed over a range of years. Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach depths of over two miles (3.2 km), and contain ice up to 800,000 years old. The physical properties of the ice and of material trapped in it can be used to reconstruct the climate over the age range of the core. The proportions of different oxygen and hydrogen isotopes provide information about ancient temperatures, and the air trapped in tiny bubbles can be analysed to determine the level of atmospheric gases such as carbon dioxide. Since heat flow in a large ice sheet is very slow, the borehole temperature is another indicator of temperature in the past. These data can be combined to find the climate model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logo Gisp2 133x133
A logo (abbreviation of logotype; ) is a graphic mark, emblem, or symbol used to aid and promote public identification and recognition. It may be of an abstract or figurative design or include the text of the name it represents as in a wordmark. In the days of hot metal typesetting, a logotype was one word cast as a single piece of type (e.g. "The" in ATF Garamond), as opposed to a ligature, which is two or more letters joined, but not forming a word. By extension, the term was also used for a uniquely set and arranged typeface or colophon. At the level of mass communication and in common usage, a company's logo is today often synonymous with its trademark or brand.Wheeler, Alina. ''Designing Brand Identity'' © 2006 John Wiley & Sons, Inc. (page 4) Etymology Douglas Harper's Online Etymology Dictionary states that the term 'logo' used in 1937 "probably a shortening of logogram". History Numerous inventions and techniques have contributed to the contemporary logo, includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Data Center
The World Data Centre (WDC) system was created to archive and distribute data collected from the observational programmes of the 1957–1958 International Geophysical Year by the International Council of Science ( ICSU). The WDCs were funded and maintained by their host countries on behalf of the international science community. Originally established in the United States, Europe, Soviet Union, and Japan, the WDC system expanded to other countries and to new scientific disciplines. The WDC system included up to 52 Centres in 12 countries. All data held in WDCs were available for the cost of copying and sending the requested information. At the end of 2008, following the ICSU General Assembly in Maputo (Mozambique), the World Data Centres were reformed and a new ICSU World Data System In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Oceanic And Atmospheric Administration
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditions, charts the seas, conducts deep sea exploration, and manages fishing and protection of marine mammals and endangered species in the U.S. exclusive economic zone. Purpose and function NOAA's specific roles include: * ''Supplying Environmental Information Products''. NOAA supplies to its customers and partners information pertaining to the state of the oceans and the atmosphere, such as weather warnings and forecasts via the National Weather Service. NOAA's information services extend as well to climate, ecosystems, and commerce. * ''Providing Environmental Stewardship Services''. NOAA is a steward of U.S. coastal and marine environments. In coordination with federal, state, local, tribal and international authorities, NOAA manages the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EPICA
{{disambiguation ...
Epica or EPICA may refer to: * Epica (band), a Dutch symphonic metal band * ''Epica'' (Kamelot album), 2003 * ''Epica'' (Audiomachine album), 2012 * The European Project for Ice Coring in Antarctica (EPICA) * The Epica Awards (International Advertising Awards) * Daewoo Tosca, also known as Chevrolet Epica or Holden Epica * Daewoo Magnus, also known as Chevrolet Epica * ''Banksia epica'', a South Australian native bush See also *Epic (other) Epic commonly refers to: * Epic poetry, a long narrative poem celebrating heroic deeds and events significant to a culture or nation * Epic film, a genre of film with heroic elements Epic or EPIC may also refer to: Arts, entertainment, and med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clair Patterson
Clair Cameron Patterson (June 2, 1922 – December 5, 1995) was an American geochemist. Born in Mitchellville, Iowa, Patterson graduated from Grinnell College. He later received his Ph.D. from the University of Chicago and spent his entire professional career at the California Institute of Technology (Caltech). In collaboration with George Tilton, Patterson developed the uranium–lead dating method into lead–lead dating. By using lead isotopic data from the Canyon Diablo meteorite, he calculated an age for the Earth of 4.55 billion years, which was a figure far more accurate than those that existed at the time, and one that has remained largely unchanged since 1956. Patterson first encountered lead contamination in the late 1940s as a graduate student at the University of Chicago. His work on this subject led to a total re-evaluation of the growth in industrial lead concentrations in the atmosphere and the human body, and his subsequent campaigning was seminal in the bann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakewood, Colorado
The City of Lakewood is the home rule municipality that is the most populous municipality in Jefferson County, Colorado, United States. The city population was 155,984 at the 2020 U.S. Census making Lakewood the fifth most populous city in Colorado and the 167th most populous city in the United States. Lying immediately west of Denver, Lakewood is a principal city of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and a major city of the Front Range Urban Corridor. History The urban and suburban development of the community known as Lakewood was started in 1889 by Charles Welch and W.A.H. Loveland, who platted a 13-block area along Colfax Avenue west of Denver in eastern Jefferson County. Loveland, the former president of the Colorado Central Railroad, retired to the new community of Lakewood after many years of living in Golden. Until 1969, the area known as Lakewood had no municipal government, relying instead on several water districts, several fire di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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