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Ad Astra Ice Cap (Greenland)
Ad Astra Ice Cap () is an ice cap in Queen Louise Land, northeastern Greenland.Google Earth Administratively it belongs to the Northeast Greenland National Park. History The ice cap was mapped during the 1952–54 British North Greenland expedition led by Commander James Simpson. It was named in honor of the Royal Air Force in order to commemorate the air transport supplied to the expedition. The name "Adastra Ice Cap" had been suggested by Brian Roberts, but finally "Ad Astra Ice Cap" became the approved name. Geography The Ad Astra Ice Cap is the largest ice cap in Queen Louise Land. It lies in the northern sector, to the east of the lower stretch of the Admiralty Glacier. The Trefork Lake lies to the southwest. The small Gultop Glacier flows to the NNW from the northern end and joins the Admiralty Glacier near its terminus. See also *List of glaciers in Greenland *Queen Louise Land Queen Louise Land (; ) is a vast mountainous region located west of Dove Bay, King Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel-2
Sentinel-2 is an Earth observation mission from the Copernicus Programme that acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission's Sentinel-2A and Sentinel-2B satellites were joined in orbit in 2024 by a third, Sentinel-2C, and in the future by Sentinel-2D, eventually replacing the A and B satellites, respectively. The mission supports services and applications such as agricultural monitoring, emergencies management, land cover classification, and water quality. Sentinel-2 has been developed and is being operated by the European Space Agency. The satellites were manufactured by a consortium led by Airbus Defence and Space in Friedrichshafen, Germany. Overview The Sentinel-2 mission includes: * Multispectral image, Multi-spectral data with 13 bands in the Visible spectrum, visible, Infrared#Regions within the infrared, near infrared, and Infrared#Regions within the infrared, short wave infrared part of the Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Glacier
Admiralty Glacier () is a glacier in Queen Louise Land, northeastern Greenland.Google Earth Administratively it belongs to the Northeast Greenland National Park. History The glacier was mapped during the 1952–54 British North Greenland expedition led by Commander James Simpson. It was named after the British Admiralty in order to commemorate the assistance given to the expedition by the Royal Navy. Geography The Admiralty Glacier is one of the main glaciers in northern Queen Louise Land. It flows from the Greenland Ice Sheet from west to east the first , slightly bending to the north of Trefork Lake and flowing roughly northeastwards. The Ad Astra Ice Cap lies to the east of its lower stretch. The glacier has its terminus in the Støvdal valley at the Britannia Lake, near the southern end of the Britannia Glacier. The structure of the cliffs on either side of Admiralty Glacier was examined by the British North Greenland expedition geologists. Expedition member and g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Cap
In glaciology, an ice cap is a mass of ice that covers less than of land area (usually covering a highland area). Larger ice masses covering more than are termed ice sheets. Description By definition, ice caps are not constrained by topographical features (i.e., they must lie over the top of mountains). By contrast, ice masses of similar size that ''are'' constrained by topographical features are known as ice fields. The ''dome'' of an ice cap is usually centred on the highest point of a massif. Ice flows away from this high point (the ice divide) towards the ice cap's periphery. Ice caps significantly affect the geomorphology of the area they occupy. Plastic moulding, gouging and other glacial erosional features become present upon the glacier's retreat. Many lakes, such as the Great Lakes in North America, as well as numerous valleys have been formed by glacial action over hundreds of thousands of years. The Antarctic and Greenland contain 99% of the ice volume on earth, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Louise Land
Queen Louise Land (; ) is a vast mountainous region located west of Dove Bay, King Frederik VIII Land, northeastern Greenland. Administratively it is part of the Northeast Greenland National Park zone. The highest point of Queen Louise Land is Gefiontinde, with a height of , the highest of the Gefiontinder group of peaks located at .Google Earth Geologically Queen Louise Land is made up of orthogneiss overlain by sedimentary rocks. History This remote area was named ''Dronning Louises Land'' after Queen Louise of Denmark (1851–1926), wife of King Frederik VIII of Denmark, by the ill-fated 1906–08 Denmark Expedition —the expedition that aimed to map one of the last unknown parts of Greenland. Danish Arctic explorer Alf Trolle claimed that this area had been originally named as ''Den Store Nanuták'' —The Big Nunatak. Queen Louise Land was subsequently visited by the 1912–13 Danish Expedition to Queen Louise Land led by J.P. Koch, as well as the 1952–54 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Cap
In glaciology, an ice cap is a mass of ice that covers less than of land area (usually covering a highland area). Larger ice masses covering more than are termed ice sheets. Description By definition, ice caps are not constrained by topographical features (i.e., they must lie over the top of mountains). By contrast, ice masses of similar size that ''are'' constrained by topographical features are known as ice fields. The ''dome'' of an ice cap is usually centred on the highest point of a massif. Ice flows away from this high point (the ice divide) towards the ice cap's periphery. Ice caps significantly affect the geomorphology of the area they occupy. Plastic moulding, gouging and other glacial erosional features become present upon the glacier's retreat. Many lakes, such as the Great Lakes in North America, as well as numerous valleys have been formed by glacial action over hundreds of thousands of years. The Antarctic and Greenland contain 99% of the ice volume on earth, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland
Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenland are full Danish nationality law, citizens of Denmark and European Union citizenship, of the European Union. Greenland is one of the Special territories of members of the European Economic Area#Overseas countries and territories, Overseas Countries and Territories of the European Union and is part of the Council of Europe. It is the List of islands by area, world's largest island, and lies between the Arctic Ocean, Arctic and Atlantic oceans, east of the Arctic Archipelago, Canadian Arctic Archipelago. It is the location of the northernmost point of land in the world; Kaffeklubben Island off the northern coast is the world's Northernmost point of land, northernmost undisputed point of land—Cape Morris Jesup on the mainland was thought to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Earth
Google Earth is a web mapping, web and computer program created by Google that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satellite images, aerial photography, and geographic information system, GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and coordinates, or by using a Computer keyboard, keyboard or computer mouse, mouse. The program can also be downloaded on a smartphone or Tablet computer, tablet, using a touch screen or stylus to navigate. Users may use the program to add their own data using Keyhole Markup Language and upload them through various sources, such as forums or blogs. Google Earth is able to show various kinds of images overlaid on the surface of the Earth and is also a Web Map Service client. In 2019, Google revealed that Google Earth covers more than 97 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northeast Greenland National Park
Northeast Greenland National Park (, ) is the world's largest national park and the 10th largest protected area (the only larger protected areas consist mostly of sea). Established in 1974, the Northeast Greenland national park expanded to its present size in 1988. It protects of the interior and northeastern coast of Greenland and is larger than the area of Tanzania, but smaller than that of Egypt. This means that the national park is bigger than 166 of the world's 195 countries. It was the first national park to be created in the Kingdom of Denmark and remains Greenland's only national park. It is the northernmost national park in the world and the second-largest by area of any second-level subdivision of any country in the world, trailing only the Qikiqtaaluk Region in Nunavut, Canada. Geography The park shares borders, largely laid out as straight lines, with the Sermersooq municipality in the south and with the Avannaata municipality in the west, partly along the 45° ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British North Greenland Expedition
The British North Greenland expedition was a British scientific mission, led by Commander James Simpson RN, which lasted from July 1952 to August 1954. A total of 30 men took part, though not all stayed for both years. The purpose of BNGE was primarily to carry out scientific studies in glaciology, meteorology, geology and physiology. Gravimetric and seismological surveys were made, and radio wave propagation was also studied from their station codenamed " North Ice". It also provided information useful to the Armed Forces about operating in Arctic environments, and the majority of the team were serving members. Travel over the icecap was either on foot, by dog sled, or by M29 Weasel tracked vehicles. Expedition members also made pioneering ascents in the Barth Mountains and Queen Louise Land. History Simpson made a preparatory exploration in 1951. A Short Sunderland flying boat landed in Seal Lake and from there Simpson walked across Storstrommen to Queen Louise Land. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Simpson (explorer)
Cortlandt James Woore Simpson (2 September 1911, Westbourne, Sussex – 9 May 2002, South Hams, Devon) was an English polar explorer and naval officer. Personal life Jim Simpson was born into a naval family His grandfather, Vice-Admiral Cortlandt Herbert Simpson, was the commander of HMS ''Mullett'' and other vessels, and his father, Rear Admiral Cortlandt Herbert Simpson, also had a distinguished naval career. His family home for three generations was in Stoke-by-Nayland in Suffolk. Simpson sold it in 1969, building a smaller house for himself in the grounds, before eventually moving to Somerset and then to Devon in later life. Simpson was married four times and had one daughter. His great-grandfather was John Busby, who along with his great-uncle James Busby were the fathers of the Australian wine industry. Naval career He was commissioned into the Royal Navy following graduation from the Royal Naval College, Dartmouth. After service on several vessels, he resigned his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Air Force
The Royal Air Force (RAF) is the Air force, air and space force of the United Kingdom, British Overseas Territories and Crown Dependencies. It was formed towards the end of the World War I, First World War on 1 April 1918, on the merger of the Royal Flying Corps (RFC) and the Royal Naval Air Service (RNAS). Following the Allies of World War I, Allied victory over the Central Powers in 1918, the RAF emerged as the largest air force in the world at the time. Since its formation, the RAF has played History of the Royal Air Force, a significant role in Military history of the United Kingdom, British military history. In particular, during the Second World War, the RAF established Air supremacy, air superiority over Nazi Germany's Luftwaffe during the Battle of Britain, and led the Allied strategic bombing effort. The RAF's mission is to support the objectives of the British Ministry of Defence (United Kingdom), Ministry of Defence (MOD), which are to "provide the capabilities nee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Birley Roberts
Brian Birley Roberts (23 October 1912 – 9 October 1978) was a British polar expert, ornithologist and diplomat who played a key role in the development of the Antarctic Treaty System. A biography of Roberts has been published. Early life Brian Roberts was born in Woking, Surrey. He was the youngest of four children of Charles Michael Roberts, a doctor, and Madeline Julia Birley. He was educated at Uppingham School and Emmanuel College, Cambridge. In childhood he developed an interest in birds, photography and the polar regions, which was stimulated by adventurous family holidays Polar exploration and ornithology As an undergraduate, Roberts led Cambridge expeditions to Vatnajökull, Iceland (1932) and to Scoresbysund, east Greenland (1933). On the latter, the party was taken to and fro by French polar explorer Jean-Baptiste Charcot on the vessel ''Pourquoi Pas?'' In 1934, he graduated in geography, archaeology and anthropology Tripos. Later that year, he joined the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
