Antarctica And The Southern Ocean
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Antarctica And The Southern Ocean
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Author : Nicholas Golledge
language : en
Publisher: Frontiers Media SA
Release Date : 2024-06-26
Antarctica And The Southern Ocean written by Nicholas Golledge and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-26 with Science categories.
Antarctica is our southernmost continent. It is nearly double the size of Australia. Antarctica is covered almost entirely by land ice called the Antarctic Ice Sheet and is surrounded by the Southern Ocean. The Southern Ocean influences climate by taking up heat and carbon dioxide from the atmosphere and storing it in deep waters. The cloud processes and aerosols over the Southern Ocean are complex and are important challenges for climate models. To understand the climate of the past, polar scientists drill ice cores through the Antarctic Ice Sheet. The ice core is a powerful tool that we can use to determine how the Earth's climate has changed and the information provided by historical ice cores has become extremely valuable for predicting the future scenarios of our planet. This ice is the largest reservoir of fresh water on Earth. The Antarctic Ice Sheet flows down into the Southern Ocean where parts of it start to float. These large floating platforms of ice are called ice shelves. Knowledge of the sensitivity and interaction of ice shelves to changes in atmosphere and ocean is important to understand the contribution of Antarctica to global sea level rise and the Southern Ocean, and global marine ecosystems. If melted, the Antarctic Ice Sheet would be a major contributor to global sea level rise. In winter, the surface of the ocean around Antarctica freezes and sea ice forms. At the height of winter, the area of sea ice that forms is as large as Antarctica itself but it melts back to the continent every summer. The amount of sea ice that forms in winter and melts back each summer is different. We examine this annual fluctuation of sea ice area around Antarctica for indications of climate change. Sea ice provides important habitats for primary producers, such as sea ice algae, and Antarctic krill, a keystone species of the Southern Ocean ecosystem. Sea ice is also an important habitat for penguins and seals. This collection aims to inform young readers about fundamental knowledge and digested cutting-edge science that will help increase their understanding of Antarctica and its central role as a global climate driver. In addition to the Editors hosting, we would acknowledge the coordination and organization efforts of Pat Wongpan .
Southern Ocean
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Author : Jonah Young
language : en
Publisher: Ice Press
Release Date : 2015-01-02
Southern Ocean written by Jonah Young and has been published by Ice Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-02 with Science categories.
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).
Future Science Opportunities In Antarctica And The Southern Ocean
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2011-11-28
Future Science Opportunities In Antarctica And The Southern Ocean written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-28 with Science categories.
Antarctica and the surrounding Southern Ocean remains one of the world's last frontiers. Covering nearly 14 million km² (an area approximately 1.4 times the size of the United States), Antarctica is the coldest, driest, highest, and windiest continent on Earth. While it is challenging to live and work in this extreme environment, this region offers many opportunities for scientific research. Ever since the first humans set foot on Antarctica a little more than a century ago, the discoveries made there have advanced our scientific knowledge of the region, the world, and the Universe-but there is still much more to learn. However, conducting scientific research in the harsh environmental conditions of Antarctica is profoundly challenging. Substantial resources are needed to establish and maintain the infrastructure needed to provide heat, light, transportation, and drinking water, while at the same time minimizing pollution of the environment and ensuring the safety of researchers. Future Science Opportunities in Antarctica and the Southern Ocean suggests actions for the United States to achieve success for the next generation of Antarctic and Southern Ocean science. The report highlights important areas of research by encapsulating each into a single, overarching question. The questions fall into two broad themes: (1) those related to global change, and (2) those related to fundamental discoveries. In addition, the report identified key science questions that will drive research in Antarctica and the Southern Ocean in coming decades, and highlighted opportunities to be leveraged to sustain and improve the U.S. research efforts in the region.
Antarctica
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Author : Colin Monteath
language : en
Publisher:
Release Date : 2005-03
Antarctica written by Colin Monteath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-03 with Antarctica categories.
Southern Ocean
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Author : Kate A Furlong
language : en
Publisher: ABDO
Release Date : 2010-09-01
Southern Ocean written by Kate A Furlong and has been published by ABDO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-01 with Juvenile Nonfiction categories.
Provides information about the newly delineated ocean that surrounds the continent of Antarctica.
Encyclopedia Of Antarctica And The Southern Oceans
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Author : B. Stonehouse
language : en
Publisher: John Wiley & Sons
Release Date : 2002-08-16
Encyclopedia Of Antarctica And The Southern Oceans written by B. Stonehouse and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-08-16 with Nature categories.
Antarctica is a major geographical region of our world and an important part of the global ecosystem. Including a continent larger than Australia and an ocean broader than the Atlantic, it makes up one-eighth of the World's surface. Knowledge gained by early explorers and more recently by scientists is proving increasingly important in world affairs. No longer remote at the southern end of the Earth, Antarctica and the southern oceans have become centres of general, historic, scientific and political interest. The Encyclopedia of Antarctica and the Southern Oceans contains over 1300 articles, compiled by a team of 26 international researchers, who have worked in the area. Topics covered include: History of discovery and exploration Geology, Glaciology and Climate Structure and ice cover of the Southern Ocean Biology of the ocean and continent Impacts of man, including conservation and political issues Islands of the southern oceans Articles are listed alphabetically and written in non-technical language. Many recommend further reading. Study guides help readers to follow learning paths through the Encyclopedia. This book is an up-to-date and authoritative reference on Antarctica and the southern oceans, essential for public libraries and reference sections of academic institutions, government departments and research centres. It is also of general use to any reader with an interest in Antarctica.
Antarctic Peninsula Region Of The Southern Ocean
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Author : Eugene G. Morozov
language : en
Publisher: Springer Nature
Release Date : 2022-01-01
Antarctic Peninsula Region Of The Southern Ocean written by Eugene G. Morozov and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-01 with Science categories.
The book is based on results from the Russian expedition in the region of the Antarctic Peninsula and Powell Basin in the northern part of the Weddell Sea, as well as on the review of earlier research in the region. The main goal of the research was to collect the newest data and study the physical properties and ecology of this key region of the Southern Ocean. Data analysis is supplemented with numerical modeling of the atmosphere-ocean interaction and circulation in the adjacent region, including research on rogue waves. The focus of the study was the Antarctic Circumpolar Current, currents and water properties in the Bransfield Strait and Antarctic Sound, properties of seawater, currents, ecosystem and biological communities in the Powell Basin of the northwestern Weddell Sea, and their variations. An attempt is made to reveal the role of various components of the Antarctic environment in the formation of biological productivity and maintenance of the Antarctic krill population. This is especially important as in the last decades the Antarctic environment has experienced significant changes related to the global climatic trends.
A New Zealand Science Strategy For Antarctica And The Southern Ocean
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Author :
language : en
Publisher:
Release Date : 1998
A New Zealand Science Strategy For Antarctica And The Southern Ocean written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Antarctica categories.
Antarctica And The Law Of The Sea
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Author : Christopher C. Joyner
language : en
Publisher: BRILL
Release Date : 2021-09-27
Antarctica And The Law Of The Sea written by Christopher C. Joyner and has been published by BRILL this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-27 with Law categories.
Antarctica and the Southern Ocean cover one-tenth of the earth's surface. In a legal and environmental sense, Antarctica represents the geography of hope. It is the freshest and most pristine of regions, governed by a legal regime that offers Antarctica and its circumpolar water the unique possibility of becoming the world's first global wilderness preserve. But in today's age of resource scarcity, Antarctica still provokes much political, economic and legal debate. Over the past decade, international attention has increasingly focused on the legal status of the continent, the potential for hydrocarbon exploitation offshore, and opportunities for harvesting circumpolar living marine resources. In this fascinating treatment, Christopher C. Joyner undertakes the first serious examination of the intimate relationship between Antarctica and the law of the sea. Using Antarctica as a case study, Joyner probes large conceptual issues of ocean law and politics. He uses the intricate details of oceanography and law to unravel the dynamics of the Antarctic Treaty System. In doing so, he examines how the changing importance of Antarctic issues has affected the development of the law of the sea for the region, the ways in which states define their national interests, and the accommodation through various negotations that have contributed to the development of law for governing the Southern Ocean. While the study of law for the Antarctic is provocative in itself, this work goes much farther. The study critically analyzes the region's biogeography, the condition of sovereignty on the continent, the lawfulness of asserting jurisdictional zones offshore, and various legal implications for Antarctica's continental shelf, local island groups, circumpolar deep seabed, and the Southern Ocean's high seas. Moreover, the special legal efforts by the international community to protect the Antarctic seas from marine pollution and to conserve its living marine resources are comprehensively appraised. Thorough, authoritative, and objectively reasoned, Antarctica and the Law of the Sea provides an insightful assessment of how law can progressively develop for a resource-rich region of the world's ocean. As such, it should appeal to a broad range of international lawyers and social scientists who are interested in international relations, political economy, environmental politics, and the law of the sea.
Antarctic Sea Ice Variability In The Southern Ocean Climate System
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher: National Academies Press
Release Date : 2017-03-24
Antarctic Sea Ice Variability In The Southern Ocean Climate System written by National Academies of Sciences, Engineering, and Medicine and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-24 with Science categories.
The sea ice surrounding Antarctica has increased in extent and concentration from the late 1970s, when satellite-based measurements began, until 2015. Although this increasing trend is modest, it is surprising given the overall warming of the global climate and the region. Indeed, climate models, which incorporate our best understanding of the processes affecting the region, generally simulate a decrease in sea ice. Moreover, sea ice in the Arctic has exhibited pronounced declines over the same period, consistent with global climate model simulations. For these reasons, the behavior of Antarctic sea ice has presented a conundrum for global climate change science. The National Academies of Sciences, Engineering, and Medicine held a workshop in January 2016, to bring together scientists with different sets of expertise and perspectives to further explore potential mechanisms driving the evolution of recent Antarctic sea ice variability and to discuss ways to advance understanding of Antarctic sea ice and its relationship to the broader ocean-climate system. This publication summarizes the presentations and discussions from the workshop.