Категория:Моделирование рельефа: различия между версиями

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(Seafloor gravity maps)
 
(не показана 21 промежуточная версия этого же участника)
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[[Category:Моделирование]]
 
[[Category:Моделирование]]
[[Category:Карты]]
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[[Category:Реконструкция географии]]
How calculate sea depths?
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[[aw:Category:Geodata]]
  
[http://www.smithsonianmag.com/science-nature/first-complete-map-ocean-floor-stirring-controversial-waters-180963993/#jj5o3L2xV8reV7dY.99 To map some 140 million square miles of sea floor, the Seabed 2030 project is currently recruiting around 100 ships that will circumscribe the globe for 13 years. The team, united under the non-profit group General Bathymetric Chart of the Oceans (GEBCO)]
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[[lw:Category:Earth]]
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= goals =
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[https://bskamalov.livejournal.com/4290399.html?thread=3919711#t3919711 Интересно, если бы кто-то разбирающийся с ясным разумом сделал геологическую реконструкцию с картами, картинками, обоснованиями.]
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= solutions =
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* [https://gisandscience.com/2009/11/18/geography-awareness-week-how-much-water-is-in-the-ocean/ The calculation of variations in the sea level is relatively simple. It is by far more complicated to then determine the change in the water mass. A team of geodesists and oceanographers from the University of Bonn, as well as from the GFZ German Research Centre for Geosciences and the Alfred-Wegener Institute for Polar and Marine Sciences, two centres of the Helmholtz Association, have now, for the first time succeeded in doing this. The researchers were able to observe short-term fluctuations in the spatial distribution of the ocean water masses.]
  
= Seafloor gravity maps =
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[https://www.sciencedaily.com/releases/2009/11/091112103419.htm we were able to prove, for the first time, that in particular in the higher latitudes, significant fluctuations of the water mass occur, and that this takes place within a time period of only one to two weeks". So far one only knew that the mass of the world-wide ocean water varies seasonally by on average approximately three quadrillion kilogrammes (a quadrillion equals to 1 followed by 15 zeroes) -- that implies a sea level variation of approx. seven to eight millimetres. This effect is brought about, among others, by variations in precipitation and evaporation as well as by the storage of water as snow. But, also, the melting of the glaciers and the ice masses in Greenland and in the Antarctic play a role.]
[http://topex.ucsd.edu/grav_outreach/index.html#grid]
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* [https://www.sciencedaily.com/releases/2017/01/170130224728.htm The movement of water in the ocean is determined by many factors including tides; winds; surface waves; internal waves, those that propagate within the layers of the ocean; and differences in temperature, salinity or sea level height. Additionally, like high and low pressure systems seen on TV weather maps, the ocean is full of eddies, slowly swirling masses of water... In the future, Qiu and colleagues hope to develop a mathematical approach to creating more detailed pictures of circulation based on sea level in more locations throughout the Pacific.]
 
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* [[:Category:Инерционный калькулятор‎|Инерционный калькулятор‎]]
[https://io9.gizmodo.com/explore-the-worlds-most-detailed-map-of-the-seafloor-r-1642315933 Explore The World's Most Detailed Map Of The Seafloor, Released Today Robbie Gonzalez 10/03/14 8:00p]
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* [[:Category:Модель рельефа Земли|Модель рельефа Земли]]
 
 
[https://www.wired.com/2014/10/science-graphic-week-super-detailed-interactive-3-d-sea-floor-map/ super-detailed map of the ocean floor’s topography is based on satellite measurements of subtle lumps on the ocean’s surface. These lumps of water, which are subtle, low, and wide on the ocean’s surface, are caused by the gravitational pull of underwater features like mountains and ridges. The team of scientists wrapped their data around a globe built with the Javascript library Cesium]
 
 
 
= some regions =
 
[https://eos.org/project-updates/a-1-4-billion-pixel-map-of-the-gulf-of-mexico-seafloor A 1.4-Billion-Pixel Map of the Gulf of Mexico Seafloor]
 

Текущая версия на 18:37, 20 декабря 2018

aw:Category:Geodata

lw:Category:Earth

goals[править]

Интересно, если бы кто-то разбирающийся с ясным разумом сделал геологическую реконструкцию с картами, картинками, обоснованиями.

solutions[править]

we were able to prove, for the first time, that in particular in the higher latitudes, significant fluctuations of the water mass occur, and that this takes place within a time period of only one to two weeks". So far one only knew that the mass of the world-wide ocean water varies seasonally by on average approximately three quadrillion kilogrammes (a quadrillion equals to 1 followed by 15 zeroes) -- that implies a sea level variation of approx. seven to eight millimetres. This effect is brought about, among others, by variations in precipitation and evaporation as well as by the storage of water as snow. But, also, the melting of the glaciers and the ice masses in Greenland and in the Antarctic play a role.

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