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Bukkehåmårtjønne
Bukkehåmmårtjørna or Bukkehåmårtjønne is a small lake in Vågå Municipality in Innlandet county, Norway. The lake is located in the eastern part of the Jotunheimen mountains, just inside the boundaries of the Jotunheimen National Park. At an elevation of above sea level, this is the highest lake that has been investigated as a climate archive in southern Norway. A small glacier, Bukkehåmmårbreen, is draining meltwater into the lake at present. This glacier reformed just short of 6,000 years ago following the Holocene climate optimum and has existed continuously since. After growing gradually towards 4,000 years before present (BP) the glacier has been of near present size over the last 4,000 years, growing slightly larger over the last 2,000-2,500 years. Prior to the climate optimum and following the deglaciation the glacier melted some 10,000 years before present. The flat valley-shoulder that the lake is eroded into is locally known as a "''fly''". This particular le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vågå Municipality
Vågå () is a List of municipalities of Norway, municipality in Innlandet county, Norway. It is located in the Traditional districts of Norway, traditional district of Gudbrandsdal. The administrative centre of the municipality is the village of Vågåmo. Other village areas in Vågå include Lalm and Bessheim. The municipality is the 73rd largest by area out of the 356 municipalities in Norway. Vågå is the 214th most populous municipality in Norway with a population of 3,532. The municipality's population density is and its population has decreased by 5% over the previous 10-year period. General information The prestegjeld of ''Vaage'' was established as a municipality on 1 January 1838 (see formannskapsdistrikt law). On 1 January 1908, the municipality was divided into three parts. The northeastern part of Vågå (population: 2,287) became Sel Municipality, the southeastern part (population: 1,241) became Heidal Municipality, Hedalen Municipality, and the remaining areas i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deglaciation
Deglaciation is the transition from full glacial conditions during ice ages, to warm interglacials, characterized by global warming and sea level rise due to change in continental ice volume. Thus, it refers to the retreat of a glacier, an ice sheet or frozen surface layer, and the resulting exposure of the Earth's surface. The decline of the cryosphere due to ablation can occur on any scale from global to localized to a particular glacier. After the Last Glacial Maximum (ca. 21,000 years ago), the last deglaciation begun, which lasted until the early Holocene. Around much of Earth, deglaciation during the last 100 years has been accelerating as a result of climate change, partly brought on by anthropogenic changes to greenhouse gases. The previous deglaciation took place from approximately 22 ka until 11.5 ka. This occurred when there was an annual mean atmospheric temperature on the earth that increased by roughly 5 °C, which was also accompanied by regional hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lakes In Norway
This is a list of lakes and reservoirs in Norway, sorted by Counties of Norway, county. For the geography and history of lakes in that country, see Lakes in Norway, including: *Lakes in Norway#Largest lakes, List of largest lakes in Norway *Lakes in Norway#Deepest lakes, List of deepest lakes in Norway Akershus *Bjørkelangen (lake), Bjørkelangen *Bogstadvannet *Dælivannet *Engervannet *Hallangen *Hurdalsjøen *Lyseren *Mangen *Mjøsa *Øgderen *Østernvann *Øyangen (Gran) *Øyeren *Rødenessjøen *Setten Aust-Agder *Åraksfjorden *Blåsjø *Botnsvatnet *Botsvatn *Breidvatn *Byglandsfjorden *Fisstøylvatnet *Grøssæ *Gyvatn *Hartevatnet *Herefossfjorden *Holmavatnet (Vinje), Holmavatnet *Holmevatnet *Homstølvatnet *Hovatn *Høvringsvatnet *Kilefjorden *Kolsvatnet *Kvifjorden *Longerakvatnet *Måvatn *Myklevatnet *Nasvatn *Nelaug (lake), Nelaug *Nesvatn *Nystølfjorden *Ogge *Ormsavatnet *Østre Grimevann *Øyarvatnet *Ramvatn *Reinevatn *Rore (lake), Rore *Rosskreppfj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammoth
A mammoth is any species of the extinct elephantid genus ''Mammuthus.'' They lived from the late Miocene epoch (from around 6.2 million years ago) into the Holocene until about 4,000 years ago, with mammoth species at various times inhabiting Africa, Asia, Europe, and North America. Mammoths are distinguished from living elephants by their (typically large) spirally twisted tusks and in some later species, the development of numerous adaptions to living in cold environments, including a thick layer of fur. Mammoths and Asian elephants are more closely related to each other than they are to African elephants. The oldest mammoth representative, '' Mammuthus subplanifrons'', appeared around 6 million years ago during the late Miocene in what is now southern and Eastern Africa.'''' Later in the Pliocene, by about three million years ago, mammoths dispersed into Eurasia, eventually covering most of Eurasia before migrating into North America around 1.5–1.3 million year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Last Glacial Maximum
The Last Glacial Maximum (LGM), also referred to as the Last Glacial Coldest Period, was the most recent time during the Last Glacial Period where ice sheets were at their greatest extent between 26,000 and 20,000 years ago. Ice sheets covered much of Northern North America, Northern Europe, and Asia and profoundly affected Earth's climate by causing a major expansion of deserts, along with a large drop in sea levels. Based on changes in position of ice sheet margins dated via cosmogenic nuclide, terrestrial cosmogenic nuclides and radiocarbon dating, growth of ice sheets in the southern hemisphere commenced 33,000 years ago and maximum coverage has been estimated to have occurred sometime between 26,500 years ago and 20,000 years ago. After this, deglaciation caused an abrupt rise in sea level. Decline of the West Antarctica ice sheet occurred between 14,000 and 15,000 years ago, consistent with evidence for another abrupt rise in the sea level about 14,500 years ago. Glacier fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic Geological period, period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the #Evolutionary history, evolution of dinosaurs is a subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya and their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, Evolution of birds, having evolved from earlier Theropoda, theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds. Dinosaurs are varied from taxonomy (biology), taxonomic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global And Planetary Change
''Global and Planetary Change'' is a monthly peer-reviewed scientific journal covering research into the earth sciences, particularly pertaining to changes in aspects thereof such as sea level and the chemical composition of the atmosphere. It has been published by Elsevier since it was established in 1989. The editors-in-chief are Alan Haywood, Jed Kaplan, Trude Storelvmo, Liviu Matenco, Zhengtang Guo, Maoyan Zhu, Fabienne Marret-Davies, Howard Falcon-Lang. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 5.114. References External links * Earth and atmospheric sciences journals Planetary science journals Academic journals established in 1989 Elsevier academic journals Monthly jour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Innlandet
Innlandet is a Counties of Norway, county in Norway. It was created on 1 January 2020 with the merger of the old counties of Oppland and Hedmark (Jevnaker Municipality and Lunner Municipality were transferred to the neighboring county of Viken (Norwegian county), Viken on the same date). The new county has an area of , making it the largest county in Norway after the division of the old Troms og Finnmark county in 2024. The region was known as Opplandene or Opplanda since the middle ages. Historically part of Akershus, Oplandene County existed from 1757 to 1781, when it was divided into Christians County and Hedemarken County, also known as Western and Eastern Oplandene. In 1919 the two counties were renamed Oppland and Hedmark, and in 2020 they were again merged under the name Innlandet (with the exception of Jevnaker Municipality and Lunner Municipality, which went to the new county of Viken (county), Viken). This present name is a newly constructed name with no historical basi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land“Glacier, N., Pronunciation.” Oxford English Dictionary, Oxford UP, June 2024, https://doi.org/10.1093/OED/7553486115. Accessed 25 Jan. 2025. and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on ever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate
Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, including the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere and the interactions between them. The climate of a location is affected by its latitude, longitude, terrain, altitude, land use and nearby water bodies and their currents. Climates can be classified according to the average and typical variables, most commonly temperature and precipitation. The most widely used classification scheme is the Köppen climate classification. The Thornthwaite system, in use since 1948, incorporates evapotranspiration along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
