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Ice Drift

Author: Theodore Taylor

Publisher: HarperCollins

Published: 2006-03-01

Total Pages: 234

ISBN-13: 0547540612

The year is 1868, and fourteen-year-old Alika and his younger brother, Sulu, are hunting for seals on an ice floe attached to their island in the Arctic. Suddenly the ice starts to shake, and they hear a loud crack--the terrible sound of the floe breaking free from land. The boys watch with horror as the dark expanse of water between the ice and the shore rapidly widens, and they start drifting south--away from their home, their family, and everything they've ever known. Throughout their six-month-long journey down the Greenland Strait, the brothers face bitter cold, starvation, and most frightening of all, vicious polar bears. But they still remain hopeful that one day they'll be rescued. This thrilling new adventure story from bestselling author Theodore Taylor is a moving testament to the bond between brothers--and to the strength of the human spirit. Includes a map, a glossary of Inuit words and phrases, and an author's note..

The Drift of Sea Ice

Author: Matti Leppäranta

Publisher: Springer Science & Business Media

Published: 2011-03-22

Total Pages: 370

ISBN-13: 3642046835

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The Second Edition of The Drift of Sea Ice presents the fundamental laws of sea ice drift which come from the material properties of sea ice and the basic laws of mechanics. The resulting system of equations is analysed for the general properties of sea ice drift, the free drift model and analytical models for ice drift in the presence of internal friction, and the construction of numerical ice drift models is detailed. This second edition of a much lauded work, unique on this topic in the English language, has been revised, updated and expanded with much new information and outlines recent results, in particular in relation to the climate problem, mathematical modelling and ice engineering applications. The current book presents the theory, observations, mathematical modelling techniques, and applications of sea ice drift science. The theory is presented from the beginning on a graduate student level, so that students and researchers coming from other fields such as physical oceanography, meteorology, physics, engineering, environmental sciences or geography can use the book as a source book or self-study material. First the drift ice material is presented ending with the concept of ‘ice state’ – the relevant properties in sea ice dynamics. Ice kinematics observations are widely presented with the mathematical analysis methods, and thereafter come drift ice rheology – to close the triangle material – kinematics – stress. The momentum equation of sea ice is derived in detail and its general properties are carefully analysed. Then follow two chapters on analytical models: free drift and drift in the presence of internal friction: These are very important tools in understanding the dynamical behaviour of sea ice. The last topical chapter is numerical models, which are the modern tool to solve ice dynamics problem in short term and long term problems. The closing chapter summarises sea ice dynamics applications and the need of sea ice dynamic knowledge and gives some final remarks on the future of this branch of science.

Drift, Deformation, and Fracture of Sea Ice

Author: Jerome Weiss

Publisher: Springer Science & Business Media

Published: 2013-03-14

Total Pages: 95

ISBN-13: 940076202X

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Sea ice is a major component of polar environments, especially in the Arctic where it covers the entire Arctic Ocean throughout most of the year. However, in the context of climate change, the Arctic sea ice cover has been declining significantly over the last decades, either in terms of its concentration or thickness. The sea ice cover evolution and climate change are strongly coupled through the albedo positive feedback, thus possibly explaining the Arctic amplification of climate warming. In addition to thermodynamics, sea ice kinematics (drift, deformation) appears as an essential factor in the evolution of the ice cover through a reduction of the average ice age (and consequently of the cover's thickness), or ice export out of the Arctic. This is a first motivation for a better understanding of the kinematical and mechanical processes of sea ice. A more upstream, theoretical motivation is a better understanding of the brittle deformation of geophysical objects across a wide range of scales. Indeed, owing to its very strong kinematics, compared e.g. to the Earth’s crust, an unrivaled kinematical data set is available for sea ice from in situ (e.g. drifting buoys) or satellite observations. Here, we review the recent advances in the understanding of sea ice drift, deformation and fracturing obtained from these data. We focus particularly on the scaling properties in time and scale that characterize these processes, and we emphasize the analogies that can be drawn from the deformation of the Earth’s crust. These scaling properties, which are the signature of long-range elastic interactions within the cover, constrain future developments in the modeling of sea ice mechanics. We also show that kinematical and rheological variables such as average velocity, average strain-rate or strength have significantly changed over the last decades, accompanying and actually accelerating the Arctic sea ice decline.

Ice Drift, Ocean Circulation and Climate Change

Author: Jens Bischof

Publisher: Springer Science & Business Media

Published: 2000-11

Total Pages: 254

ISBN-13: 9781852336486

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The issue of global warming and climate change is of continuous concern. Since the 1970s, it bas been shown that the pack-ice around the Arctic Ocean is thinning, the margin of permafrost is moving north and the vegetation in the high northern parts of the world is changing (the 'greening' of the Arctic). But are these changes the result of human activity or simply regular variations of the Earth's climate system? Over thousands of years, a continuous archive of iceberg and sea ice drift bas formed in the deep-sea sediments, revealing the place of the ice's origin and allowing a reconstruction of the surface currents and the climate of the past. However, the drift of floating ice from one place to another is not just a passive record of past ocean circulation. It actively influences and changes the surface ocean circulation, thus having a profound effect on climate change. Ice Drift, Ocean Circulation and Climate Change is the first book to focus on the interactions between ice, the ocean and the atmosphere and to describe how these three components of the climate system influence each other. It makes clear the positive contribution of paleoclimatology and paleoceanography and should be read by anyone concerned with global warming and climate change.

Ice Ship

Author: Charles W. Johnson

Publisher: ForeEdge from University Press of New England

Published: 2014-10-07

Total Pages: 335

ISBN-13: 1611686040

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In the golden age of polar exploration (from the mid-1800s to the early 1900s), many an expedition set out to answer the big questionÑwas the Arctic a continent, an open ocean beyond a barrier of ice, or an ocean covered with ice? No one knew, for the ice had kept its secret well; ships trying to penetrate it all failed, often catastrophically. NorwayÕs charismatic scientist-explorer Fridtjof Nansen, convinced that it was a frozen ocean, intended to prove it in a novel if risky way: by building a ship capable of withstanding the ice, joining others on an expedition, then drifting wherever it took them, on a relentless one-way journey into discovery and fame . . . or oblivion. Ice Ship is the story of that extraordinary ship, the Fram, from conception to construction, through twenty years of three epic expeditions, to its final resting place as a museum. It is also the story of the extraordinary men who steered the Fram over the course of 84,000 miles: on a three-year, ice-bound drift, finding out what the Arctic really was; in a remarkable four-year exploration of unmapped lands in the vast Canadian Arctic; and on a twoÐyear voyage to Antarctica, where another famous Norwegian explorer, Roald Amundsen, claimed the South Pole. Ice Ship will appeal to all those fascinated with polar exploration, maritime adventure, and wooden ships, and will captivate readers of such books as The Endurance, In the Heart of the Sea, and The Last Place on Earth. With more than 100 original photographs, the book brings the Fram to life and light.

Ice Age Continental Drift Creativity Book

Author: Emily Stead

Publisher: Carlton Books

Published: 2013-02-05

Total Pages: 0

ISBN-13: 9781780972275

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Provides aeons of fun for young fans of the Ice Age movies. This book is packed with stickers, stencils, pull-out craft paper, make-its, games, puzzles, drawing, doodling, colouring and more It can help you learn to draw Manny, create a Sid the Sloth mask or steer the herd through the maze to a new continent.

Ice Age: Continental Drift: The Junior Novel

Author: Susan Korman

Publisher: Harper Collins

Published: 2012-05-29

Total Pages: 67

ISBN-13: 0062104861

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It's just a normal day in pre-history, when suddenly Manny finds himself separated from his family by a huge, gaping hole in the earth! As the continent splits in two, Manny sets off to find the land bridge that will reunite him with his loved ones—but not without the help of his friends Diego and Sid. Together they sail the high seas in search of home, but before long they run into a rowdy group of pirates. Can the trio navigate the sea, escape the grips of the vicious pirates, and make it back to Manny's family before the gap gets too large?

The Arctic Basin

Author: Ivan E. Frolov

Publisher: Springer Science & Business Media

Published: 2006-08-25

Total Pages: 305

ISBN-13: 3540376658

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A group of authors from the Arctic and Antarctic Research Institute in St Petersburg, Russia, have all achieved individual doctoral theses on various aspects of Arctic and Antarctic research. This book is written by experienced group of researchers and authors.