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Pål Wessel
Pål Wessel (August 31, 1959 – March 26, 2024) pronounced as, and also known as Paul Wessel, was a professor of the Department of Geology and Geophysics at the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaiʻi at Mānoa. He taught as a visiting professor at Sydney University in Australia and University of Oslo in Norway. Wessel was a Fellow of the Geological Society of America. Open source mapping tools and data In the 1980s, Wessel and Walter H. F. Smith created Generic Mapping Tools, Generic Mapping Tools (GMT), an open-source collection of computer software tools for processing and displaying geographic and Cartesian datasets. They later supplemented this with the GSHHS, Global Self-consistent, Hierarchical, High-resolution Shoreline Database (GSHHS) that they constructed from two public domain data sets, the World Data Bank II (WDB), also known as CIA Data Bank, and the World Vector Shoreline (WVS) data set. Geological and geophysical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarpsborg
Sarpsborg ( or ), historically Borg, is a List of cities in Norway, city and Municipalities of Norway, municipality in Østfold Counties of Norway, county, Norway. The administrative centre of the municipality is the city of Sarpsborg. Sarpsborg is part of the fifth List of continuously built-up areas in Norway by population, largest urban area in Norway when paired with neighbouring Fredrikstad. As of 1 January 2018, according to Statistics Norway these two municipalities have a total population of 136,127 with 55,840 in Sarpsborg and 81,278 in Fredrikstad. Statistics for 2021, say that the city has a population where 19% of the children belong to families that have "low-income in the long-term"; that is the highest level for a city (in Norway); the national level is 11.3%. General information Name In Norsemen, Norse times the city was just called ''Borg'' (from ''borg'' which means "castle"). The background for this was the fortification built by Olav Haraldsson (see Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotspot (geology)
In geology, hotspots (or hot spots) are volcanic locales thought to be fed by underlying Mantle (geology), mantle that is anomalously hot compared with the surrounding mantle. Examples include the Hawaii hotspot, Hawaii, Iceland hotspot, Iceland, and Yellowstone hotspots. A hotspot's position on the Earth's surface is independent of plate boundary, tectonic plate boundaries, and so hotspots may create a chain of volcanoes as the plates move above them. There are two hypotheses that attempt to explain their origins. One suggests that hotspots are due to mantle plumes that rise as thermal diapirs from the core–mantle boundary. The alternative plate theory (volcanism), plate theory is that the mantle source beneath a hotspot is not anomalously hot, rather the crust above is unusually weak or thin, so that lithospheric extension permits the passive rising of melt from shallow depths. Origin The origins of the concept of hotspots lie in the work of J. Tuzo Wilson, who postulated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madeira
Madeira ( ; ), officially the Autonomous Region of Madeira (), is an autonomous Regions of Portugal, autonomous region of Portugal. It is an archipelago situated in the North Atlantic Ocean, in the region of Macaronesia, just under north of the Canary Islands, Spain, west of the Morocco and southwest of mainland Portugal. Madeira sits on the African Plate, African Tectonic Plate, but is culturally, politically and ethnically associated with Europe, with its population predominantly descended from Portuguese settlers. Its population was 251,060 in 2021. The capital of Madeira is Funchal, on the main island's south coast. The archipelago includes the islands of Madeira Island, Madeira, Porto Santo Island, Porto Santo, and the Desertas Islands, Desertas, administered together with the separate archipelago of the Savage Islands. Roughly half of the population lives in Funchal. The region has political and administrative autonomy through the Autonomous Regions of Portugal#Const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azores
The Azores ( , , ; , ), officially the Autonomous Region of the Azores (), is one of the two autonomous regions of Portugal (along with Madeira). It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atlantic Ocean, about west of Lisbon, about northwest of Morocco, about southeast of Newfoundland, Canada, and the same distance southwest of Cork, Ireland. Its main industries are agriculture, dairy farming, livestock, fishing, and tourism, which has become a major service activity in the region. In the 20th century and to some extent into the 21st, they have served as a waypoint for refueling aircraft flying between Europe and North America. The government of the Azores employs a large percentage of the population directly or indirectly in the service and tertiary sectors. The largest city of the Azores is Ponta Delgada. The culture, dialect, cuisine, and traditions of the Azorean islands vary considerably, because these remote island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Islands
The Society Islands ( , officially ; ) are an archipelago in the South Pacific Ocean that includes the major islands of Tahiti, Mo'orea, Moorea, Raiatea, Bora Bora and Huahine. Politically, they are part of French Polynesia, an overseas country of France, overseas country of the France, French Republic. Geographically, they form part of Polynesia. Name The term ''Society Islands'' was first used by Captain James Cook when he visited the Leeward Islands (Society Islands), Leeward Islands, a subgroup of six of the modern-day Society Islands, during his First voyage of James Cook, expedition to the south Pacific Ocean in 1769. It has been asserted that the name honors the Royal Society, the sponsor of his voyage, but this is disputed. Cook wrote in his journal: History Settlement The first Polynesians are understood to have arrived on these islands around 1000AD. Oral history origin The islanders explain their origins in terms of an oral tradition, orally transmitted sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmantid Hotspot
The Tasmantid hotspot is a volcanic hotspot located in the South Pacific Ocean. The northward movement of the Indo-Australian Plate over the last 60 million years coupled with volcanism of the Tasmantid hotspot has resulted in a north–south line of submarine volcanoes called the Tasmantid Seamount Chain. This includes over 10 seamounts, the youngest of which is the seven million year old Gascoyne Seamount. The Tasmantid hotspot is now south of Gascoyne Seamount and is defined by a prominent zone of seismic activity. Due to plate tectonics the hotspot was under different parts of the seabed in the past. It was initially centred under what is now the southern Coral Sea about 60 million years ago somewhere close to where the present Louisiade Plateau is located, so it has been suggested that the Louisiade Plateau might be a large igneous province created by the hotspot. At the southern boundary of the plateau are volcanic rocks that appear in age and type to be able ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ontong Java
Ontong Java Atoll or Luangiua (formerly Lord Howe Atoll, not to be confused with Lord Howe Island) is an atoll in the Solomon Islands, and one of the largest atolls on earth. It is inhabited by a Polynesian community of about people, who speak the Ontong Java language. Description Geographically, Ontong Java belongs to a scattered group of three atolls which includes nearby Nukumanu Atoll and the wholly submerged Roncador Reef located to the south. Administratively Ontong Java belongs to Solomon Islands. As an outlying part of Malaita Province, it forms the northernmost tract of land of this state, over north of Santa Isabel Island. The closest land, however, is Nukumanu Atoll, which lies only due north of Ontong Java's northern tip and, though historically closely related to Ontong Java, is now under the administration of Papua New Guinea. Ontong Java is roughly boot-shaped. The entire size of the atoll is , but there are only of land, spread out over 122 small isl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samoa
Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited islands (Manono Island, Manono and Apolima), and several smaller, uninhabited islands, including the Aleipata Islands (Nuʻutele, Nuʻulua, Fanuatapu and Namua). Samoa is located west of American Samoa, northeast of Tonga, northeast of Fiji, east of Wallis and Futuna, southeast of Tuvalu, south of Tokelau, southwest of Hawaii, and northwest of Niue. The capital and largest city is Apia. The Lapita culture, Lapita people discovered and settled the Samoan Islands around 3,500 years ago. They developed a Samoan language and Culture of Samoa, Samoan cultural identity. Samoa is a Unitary state, unitary Parliamentary system, parliamentary democracy with 11 Districts of Samoa, administrative divisions. It is a sovereign state and a membe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tristan
Tristan (Latin/ Brythonic: ''Drustanus''; ; ), also known as Tristran or Tristram and similar names, is the folk hero of the legend of Tristan and Iseult. While escorting the Irish princess Iseult to wed Tristan's uncle, King Mark of Cornwall, Tristan and Iseult accidentally drink a love potion during the journey and fall in love, beginning an adulterous relationship that eventually leads to Tristan's banishment and death. The character's first recorded appearance is in the 12th-century poetic tellings initiated by Béroul and Thomas of Britain, which were eventually vastly expanded in the later tradition from the vast Prose ''Tristan''. In later versions of his story he is featured in Arthurian legend, including the seminal compilation ''Le Morte d'Arthur'', as a great Knight of the Round Table and friend of Lancelot. The historical roots of Tristan are unclear; his association with Cornwall may originate from the Tristan Stone, a 6th-century granite pillar in C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Réunion
LA most frequently refers to Los Angeles, the second most populous city in the United States of America. La, LA, or L.A. may also refer to: Arts and entertainment Music * La (musical note), or A, the sixth note *"L.A.", a song by Elliott Smith on ''Figure 8'' (album) * ''L.A.'' (EP), by Teddy Thompson *'' L.A. (Light Album)'', a Beach Boys album * "L.A." (Neil Young song), 1973 * The La's, an English rock band * L.A. Reid, a prominent music producer * Yung L.A., a rapper * Lady A, an American country music trio * "L.A." (Amy Macdonald song), 2007 *"La", a song by Australian-Israeli singer-songwriter Old Man River *''La'', a Les Gordon album Other media * l(a, a poem by E. E. Cummings * La (Tarzan), fictional queen of the lost city of Opar (Tarzan) *'' Lá'', later known as Lá Nua, an Irish language newspaper * La7, an Italian television channel *LucasArts, an American video game developer and publisher * Liber Annuus, academic journal Business, organizations, and governm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Easter Island
Easter Island (, ; , ) is an island and special territory of Chile in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle in Oceania. The island is renowned for its nearly 1,000 extant monumental statues, called ''moai'', which were created by the early Rapa Nui people. In 1995, UNESCO named Easter Island a World Heritage Site, with much of the island protected within Rapa Nui National Park. Experts differ on when the island's Polynesian inhabitants first reached the island. While many in the research community cited evidence that they arrived around the year 800, a 2007 study provided compelling evidence suggesting their arrival was closer to 1200. The inhabitants created a thriving and industrious culture, as evidenced by the island's numerous enormous stone ''moai'' and other artifacts. Land clearing for cultivation and the introduction of the Polynesian rat led to gradual deforestation. By the time of European arrival in 1722, the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
