US Southern Ocean JGOFS Program (AESOPS) PDF Download

Author: Robert Frederick Anderson
Publisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 344

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Author: Charles B. Miller
Publisher: John Wiley & Sons
ISBN: 1118223187
Category : Nature
Languages : en
Pages : 499

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Book Description
This new edition of Biological Oceanography has been greatly updated and expanded since its initial publication in 2004. It presents current understanding of ocean ecology emphasizing the character of marine organisms from viruses to fish and worms, together with their significance to their habitats and to each other. The book initially emphasizes pelagic organisms and processes, but benthos, hydrothermal vents, climate-change effects, and fisheries all receive attention. The chapter on oceanic biomes has been greatly expanded and a new chapter reviewing approaches to pelagic food webs has been added. Throughout, the book has been revised to account for recent advances in this rapidly changing field. The increased importance of molecular genetic data across the field is evident in most of the chapters. As with the previous edition, the book is primarily written for senior undergraduate and graduate students of ocean ecology and professional marine ecologists. Visit www.wiley.com/go/miller/oceanography to access the artwork from the book.

Author:
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Category : Chemical oceanography
Languages : en
Pages : 140

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Author:
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ISBN:
Category : Antarctica
Languages : en
Pages : 260

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Author: Dan Lubin
Publisher: Springer Science & Business Media
ISBN: 3540307850
Category : Science
Languages : en
Pages : 868

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Book Description
The polar regions, perhaps more than any other places on Earth, give the geophysical scientist a sense of exploration. This sensibility is genuine, for not only is high-latitude ?eldwork arduous with many locations seldom or never visited, but there remains much fundamental knowledge yet to be discovered about how the polar regions interact with the global climate system. The range of opportunities for new discovery becomes strikingly clear when we realize that the high latitudes are not one region but are really two vastly di?erent worlds. The high Arctic is a frozen ocean surrounded by land, and is home to fragile ecosystems and unique modes of human habitation. The Antarctic is a frozen continent without regular human habitation, covered by ice sheets taller than many mountain ranges and surrounded by the Earth’s most forbidding ocean. When we consider global change as applied to the Arctic, we discuss impacts to a region whose surface and lower atmospheric temperatures are near the triple point of water throughout much of the year. The most consistent signatures of climate warming have occurred at northern high latitudes (IPCC, 2001), and the potential impacts of a few degrees increase in surface temperature include a reduction in sea ice extent, a positive feedback to climate warming due to lowering of surface albedo, and changes to surface runo? that might a?ect the Arctic Ocean’s salinity and circulation.

Author: Roger B. Hanson
Publisher: Cambridge University Press
ISBN: 9780521656030
Category : Nature
Languages : en
Pages : 540

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Book Description
The world's oceans act as a reservoir, with the capacity to absorb and retain carbon dioxide. The air-sea exchange of carbon is driven by physico-chemical forces, photosynthesis, and respiration, and has an important influence on atmospheric composition. Variability in the ocean carbon cycle could therefore exert significant feedback effects during conditions of climate change. The Joint Global Ocean Flux Study (JGOFS) is the first multidisciplinary program to directly address the interactions among the biology, chemistry, and physics of marine systems, with emphasis on the transport and transformations of carbon within the ocean and across its boundaries. This unique volume, written by an international panel of scientists, provides a synthesis of JGOFS science and its achievements to date. The authoritative chapters will be of great interest to readers seeking a current overview of the role of ocean processes in Earth system science and their wider implications for climate change.

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Category : Antarctica
Languages : en
Pages : 112

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"This document represents the final report of the United States Antarctic Program External Panel. The report has the unanimous approval of all 11 panel members and draws upon our collective experience which includes some 44 individual trips to Antarctica involving visits to all three U. S. stations, each research ship, support icebreakers and numerous field sites. As a panel, we visited McMurdo Station and South Pole Station and toured support facilities at Christchurch. We received approximately 70 briefings and conducted 80 “one-on-one” meetings with individuals involved in virtually all aspects of the Antarctic Program. Over 200 inputs were received in response to our request for “public comments". During visits to McMurdo and the Pole, the Panel conducted informal “Town Meetings” and was the beneficiary of numerous comments by members of those communities having first-hand experience in day-to-day operations. We are most appreciative of the candor and professionalism with which we were treated by all those with whom we came into contact, and in particular the members of the National Science Foundation who so expertly and constructively supported our efforts. We believe the U. S. Antarctic Program is well managed, involves high quality science and is important to the region as well as to the United States. We also believe that in the current budget environment, costs must be reduced, preferably through increased efficiency and “reinvention,” but, if not, through reduced scope. Recommendations are offered herein to help ensure the continued viability of the program into the 21st century."--

Author: Michael J.R. Fasham
Publisher: Springer Science & Business Media
ISBN: 3642558445
Category : Science
Languages : en
Pages : 324

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Book Description
Oceans account for 50% of the anthropogenic CO2 released into the atmosphere. During the past 15 years an international programme, the Joint Global Ocean Flux Study (JGOFS), has been studying the ocean carbon cycle to quantify and model the biological and physical processes whereby CO2 is pumped from the ocean's surface to the depths of the ocean, where it can remain for hundreds of years. This project is one of the largest multi-disciplinary studies of the oceans ever carried out and this book synthesises the results. It covers all aspects of the topic ranging from air-sea exchange with CO2, the role of physical mixing, the uptake of CO2 by marine algae, the fluxes of carbon and nitrogen through the marine food chain to the subsequent export of carbon to the depths of the ocean. Special emphasis is laid on predicting future climatic change.

Author:
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Category : Atmospheric chemistry
Languages : en
Pages : 406

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Book Description

Author: Bernard Quéguiner
Publisher: John Wiley & Sons
ISBN: 184821815X
Category : Science
Languages : en
Pages : 146

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Book Description
In the biogeochemical dynamics of marine ecosystems, silicon is a major element whose role has, for a long time, been underestimated. It is however indispensable to the activity of several biomineralizing marine organisms, some of which play an essential role in the biological pump of oceanic carbon. This book presents notions indispensable to the knowledge on the silicon biogeochemical cycle in ocean systems, first of all describing the main quantitative analysis techniques and examination of the major organisms involved in the cycle. The author then moves on to study the most up-to-date processes to control the use of silicon and its regeneration in natural conditions, before mentioning the central role played by this original element in the control of all the biogeochemical cycles in the global ocean. The available information finally enables the global biogeochemical budget of silicon in the marine environment to be quantified.