southern ocean oceans of the world

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Southern Ocean

Author : Jonah Young
Genre : Science
File Size : 33. 98 MB
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A large body of recent oceanographic research has shown that the Antarctic Circumpolar Current (ACC), an ocean current that flows from west to east around Antarctica, plays a crucial role in global ocean circulation. The region where the cold waters of the ACC meet and mingle with the warmer waters of the north defines a distinct border - the Antarctic Convergence - which fluctuates with the seasons, but which encompasses a discrete body of water and a unique ecologic region. The Convergence concentrates nutrients, which promotes marine plant life, and which, in turn, allows for a greater abundance of animal life. In 2000, the International Hydrographic Organization delimited the waters within the Convergence as a fifth world ocean - the Southern Ocean - by combining the southern portions of the Atlantic Ocean, Indian Ocean, and Pacific Ocean. The Southern Ocean extends from the coast of Antarctica north to 60 degrees south latitude, which coincides with the Antarctic Treaty Limit and which approximates the extent of the Antarctic Convergence. As such, the Southern Ocean is now the fourth largest of the world's five oceans (after the Pacific Ocean, Atlantic Ocean, and Indian Ocean, but larger than the Arctic Ocean).

Biodiversity Of The Southern Ocean

Author : Bruno David
ISBN : 9780081004852
Genre : Nature
File Size : 41. 34 MB
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The Southern Ocean surrounding the Antarctic continent is vast, in particular, its history, its isolation, and climate, making it a unique "laboratory case" for experimental evolution, adaptation and ecology. Its evolutionary history of adaptation provide a wealth of information on the functioning of the biosphere and its potential. The Southern Ocean is the result of a history of nearly 40 million years marked by the opening of the Straits south of Australia and South America and intense cooling. The violence of its weather, its very low temperatures, the formation of huge ice-covered areas, as its isolation makes the Southern Ocean a world apart. This book discusses the consequences for the evolution, ecology and biodiversity of the region, including endemism, slowed metabolism, longevity, gigantism, and its larval stages; features which make this vast ocean a "natural laboratory" for exploring the ecological adaptive processes, scalable to work in extreme environmental conditions. Today, biodiversity of the Southern Ocean is facing global change, particularly in regional warming and acidification of water bodies. Unable to migrate further south, how will she cope, if any, to visitors from the North? Designed for curious readers to discover the immense ocean surrounding the most isolated and most inhospitable continent on the planet. Describes the Southern Ocean facing biodiversification due to global change Authored by scientists with experience of expeditions to the Southern Ocean

Southern Ocean

Author : Louise Spilsbury
ISBN : 9781406287530
Genre : Antarctic Ocean
File Size : 71. 2 MB
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This series introduces children to the five oceans of the world. They are encouraged to use geographical information by reading maps and interpreting simple keys.

Earthtrek Geography 6 With Map Practice Book

Author : Rita Fernandez
ISBN : 9789325967533
Genre : Social Science
File Size : 87. 79 MB
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Earthtrek, a NEW series in Geography for classes 3-8, based on the latest ICSE syllabus, aims at introducing and developing concepts of Geography in a captivating style. The books attempt to create curiosity and interest in the mind of the learners through interesting activities and map work.

Interannual Variability And Future Changes Of The Southern Ocean Sea Ice Cover

Author : Wouter Lefebvre
ISBN : 2874630950
Genre : Science
File Size : 67. 5 MB
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The interannual variability of the sea ice in the Southern Ocean and its evolution projected for the end of the 21st century are investigated using observations and different types of models. First of all, none of the known atmospheric modes of variabilit

The Godforsaken Sea

Author : Derek Lundy
ISBN : 9781448114856
Genre : Biography & Autobiography
File Size : 25. 92 MB
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Environmental Contamination In Antarctica

Author : S. Caroli
ISBN : 0080531075
Genre : Science
File Size : 56. 4 MB
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This thought-provoking and ambitious volume surveys the causes and extent of environmental contamination in Antarctica, and looks critically at future prospects. It highlights the key role that modern techniques of analytical chemistry play in achieving reliable empirical data in this field and their impact on shaping legal provisions. Written by prominent scientists and experts in Antarctic sciences, this work gives an overview of the studies undertaken by countries to assess the impact of pollution phenomena on the uniquely clean environment of Antarctica. Empirical studies and regulatory issues are evaluated in context with the goal of providing a model approach to more polluted areas of the world.

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