Amplified Climate Changes In The Arctic

Author : Manfred Wendisch,Ping Yang,Ping Yang (géologue).),André Ehrlich
Publisher : Unknown
Page : 34 pages
File Size : 47,6 Mb
Release : 2013
Category : Atmospheric radiation
ISBN : 3777623865

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Amplified Climate Changes in the Arctic by Manfred Wendisch,Ping Yang,Ping Yang (géologue).),André Ehrlich Pdf

A presentation given at the regular plenary session of the Academy of Sciences of Saxony in Leipzig (Germany) on October 12, 2012, is thoroughly summarized. Additional aspects important to the theme but not covered in the talk have been added to complete the text. The characteristic conditions and processes leading to the so-called Arctic amplification are outlined. The phenomenon of Arctic amplification comprises an enhanced variability and amplified increase of the near-surface air temperature in the Arctic in comparison to the average near-surface warming at lower latitudes. Observations and simulations show the magnitude of the observed Arctic near-surface air temperature increase is more than double the air temperature increase at lower latitudes. To illustrate the phenomenon of Arctic amplification, several examples of observed Arctic near-surface air temperature increases are presented. In general, Arctic amplification also implies serious Arctic climate changes other than near-surface air temperature, such as the dramatic summer melting of Arctic Sea ice and the Greenland ice sheet, and the decrease of snow cover and surface albedo of the Greenland ice sheet. Numerous reasons for the Arctic climate changes are discussed; the direct and indirect surface albedo feedback and the related increase of near-surface water vapor and cloudiness, meridional heat and water vapor transports in the atmosphere and ocean, and increased soot amounts in both the atmosphere and snow/ice surfaces. The special role of low-level clouds under Arctic conditions (low Sun, polar day and night, high surface albedo) for the self-enforcing amplification processes is described. In particular, the impact of ice in Arctic mixed-phase clouds on the cloud radiative forcing is investigated. Methods of ice detection in mixed-phase Arctic clouds are presented along with verification examples.

Author : Patrick Charles Taylor,Peter L. Langen,Ivy Tan
Publisher : Frontiers Media SA
Page : 177 pages
File Size : 54,7 Mb
Release : 2023-03-15
Category : Science
ISBN : 9782832517536

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Arctic amplification: Feedback process interactions and contributions by Patrick Charles Taylor,Peter L. Langen,Ivy Tan Pdf

Author : The Royal Society,National Academy of Sciences
Publisher : National Academies Press
Page : 62 pages
File Size : 49,7 Mb
Release : 2014-02-26
Category : Science
ISBN : 9780309302029

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Climate Change by The Royal Society,National Academy of Sciences Pdf

Climate Change: Evidence and Causes is a jointly produced publication of The US National Academy of Sciences and The Royal Society. Written by a UK-US team of leading climate scientists and reviewed by climate scientists and others, the publication is intended as a brief, readable reference document for decision makers, policy makers, educators, and other individuals seeking authoritative information on the some of the questions that continue to be asked. Climate Change makes clear what is well-established and where understanding is still developing. It echoes and builds upon the long history of climate-related work from both national academies, as well as on the newest climate-change assessment from the United Nations' Intergovernmental Panel on Climate Change. It touches on current areas of active debate and ongoing research, such as the link between ocean heat content and the rate of warming.

Author : David N. Thomas
Publisher : John Wiley & Sons
Page : 468 pages
File Size : 45,9 Mb
Release : 2021-01-26
Category : Science
ISBN : 9781118846544

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Arctic Ecology by David N. Thomas Pdf

The Arctic is often portrayed as being isolated, but the reality is that the connectivity with the rest of the planet is huge, be it through weather patterns, global ocean circulation, and large-scale migration patterns to name but a few. There is a huge amount of public interest in the ‘changing Arctic’, especially in terms of the rapid changes taking place in ecosystems and exploitation of resources. There can be no doubt that the Arctic is at the forefront of the international environmental science agenda, both from a scientific aspect, and also from a policy/environmental management perspective. This book aims to stimulate a wide audience to think about the Arctic by highlighting the remarkable breadth of what it means to study its ecology. Arctic Ecology seeks to systematically introduce the diverse array of ecologies within the Arctic region. As the Arctic rapidly changes, understanding the fundamental ecology underpinning the Arctic is paramount to understanding the consequences of what such change will inevitably bring about. Arctic Ecology is designed to provide graduate students of environmental science, ecology and climate change with a source where Arctic ecology is addressed specifically, with issues due to climate change clearly discussed. It will also be of use to policy-makers, researchers and international agencies who are focusing on ecological issues and effects of global climate change in the Arctic. About the Editor David N. Thomas is Professor of Arctic Ecosystem Research in the Faculty of Biological and Environmental Sciences, University of Helsinki. Previously he spent 24 years in the School of Ocean Sciences, Bangor University, Wales. He studies marine systems, with a particular emphasis on sea ice and land-coast interactions in the Arctic and Southern Oceans as well as the Baltic Sea. He also edited a related book: Sea Ice, 3rd Edition (2017), which is also published by Wiley-Blackwell.

Author : National Research Council,Division on Earth and Life Studies,Polar Research Board,Board on Atmospheric Sciences and Climate,Committee on Linkages Between Arctic Sea Ice Loss and Mid-Latitude Weather Patterns: A Workshop
Publisher : National Academies Press
Page : 85 pages
File Size : 42,7 Mb
Release : 2014-05-29
Category : Science
ISBN : 9780309301916

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Linkages Between Arctic Warming and Mid-Latitude Weather Patterns by National Research Council,Division on Earth and Life Studies,Polar Research Board,Board on Atmospheric Sciences and Climate,Committee on Linkages Between Arctic Sea Ice Loss and Mid-Latitude Weather Patterns: A Workshop Pdf

The Arctic has been undergoing significant changes in recent years. Average temperatures are rising twice as fast as they are elsewhere in the world. The extent and thickness of sea ice is rapidly declining. Such changes may have an impact on atmospheric conditions outside the region. Several hypotheses for how Arctic warming may be influencing mid-latitude weather patterns have been proposed recently. For example, Arctic warming could lead to a weakened jet stream resulting in more persistent weather patterns in the mid-latitudes. Or Arctic sea ice loss could lead to an increase of snow on high-latitude land, which in turn impacts the jet stream resulting in cold Eurasian and North American winters. These and other potential connections between a warming Arctic and mid-latitude weather are the subject of active research. Linkages Between Arctic Warming and Mid-Latitude Weather Patterns is the summary of a workshop convened in September 2013 by the National Research Council to review our current understanding and to discuss research needed to better understand proposed linkages. A diverse array of experts examined linkages between a warming Arctic and mid-latitude weather patterns. The workshop included presentations from leading researchers representing a range of views on this topic. The workshop was organized to allow participants to take a global perspective and consider the influence of the Arctic in the context of forcing from other components of the climate system, such as changes in the tropics, ocean circulation, and mid-latitude sea surface temperature. This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high-latitude snow cover, changes in Arctic-region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and/or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature/precipitation anomalies and extreme weather events over northern continents.

Author : Susan Hassol,Arctic Climate Impact Assessment
Publisher : Cambridge University Press
Page : 146 pages
File Size : 47,8 Mb
Release : 2004-12-13
Category : Nature
ISBN : 0521617782

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Impacts of a Warming Arctic - Arctic Climate Impact Assessment by Susan Hassol,Arctic Climate Impact Assessment Pdf

Plain-language synthesis of key findings of Arctic Climate Impact Assessment, for policymakers and broader public.

Author : National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee for the Workshop on Frontiers in Understanding Climate Change and Polar Ecosystems
Publisher : National Academies Press
Page : 86 pages
File Size : 47,7 Mb
Release : 2011-06-02
Category : Science
ISBN : 9780309210874

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Frontiers in Understanding Climate Change and Polar Ecosystems by National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee for the Workshop on Frontiers in Understanding Climate Change and Polar Ecosystems Pdf

The polar regions are experiencing rapid changes in climate. These changes are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels, including society. Even larger changes and more significant impacts are anticipated. As species respond to changing environments over time, their interactions with the physical world and other organisms can also change. This chain of interactions can trigger cascades of impacts throughout entire ecosystems. Evaluating the interrelated physical, chemical, biological, and societal components of polar ecosystems is essential to understanding their vulnerability and resilience to climate forcing. The Polar Research Board (PRB) organized a workshop to address these issues. Experts gathered from a variety of disciplines with knowledge of both the Arctic and Antarctic regions. Participants were challenged to consider what is currently known about climate change and polar ecosystems and to identify the next big questions in the field. A set of interdisciplinary "frontier questions" emerged from the workshop discussions as important topics to be addressed in the coming decades. To begin to address these questions, workshop participants discussed the need for holistic, interdisciplinary systems approach to understanding polar ecosystem responses to climate change. As an outcome of the workshop, participants brainstormed methods and technologies that are crucial to advance the understanding of polar ecosystems and to promote the next generation of polar research. These include new and emerging technologies, sustained long-term observations, data synthesis and management, and data dissemination and outreach.

Author : Miyase Christensen,Annika E. Nilsson,N. Wormbs
Publisher : Springer
Page : 316 pages
File Size : 55,6 Mb
Release : 2013-10-31
Category : Social Science
ISBN : 9781137266231

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Media and the Politics of Arctic Climate Change by Miyase Christensen,Annika E. Nilsson,N. Wormbs Pdf

Combining multidisciplinary perspectives and new research, this volume goes beyond broad discussions of the impacts of climate change and reflects on the current and historical mediations and narratives that are part of creating this new social and scientific reality.

Author : Intergovernmental Panel on Climate Change (IPCC)
Publisher : Cambridge University Press
Page : 1807 pages
File Size : 51,7 Mb
Release : 2022-05-19
Category : Science
ISBN : 9781009178464

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The Ocean and Cryosphere in a Changing Climate by Intergovernmental Panel on Climate Change (IPCC) Pdf

The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.

Author : Neloy Khare
Publisher : CRC Press
Page : 416 pages
File Size : 45,7 Mb
Release : 2022-03-14
Category : Science
ISBN : 9781000545319

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Climate Change in the Arctic by Neloy Khare Pdf

The Arctic, in the polar region, the northernmost part of Earth, is the hotspot for climate change assessments and the sensitive barometer of global climate variability. This book includes the scientific observations in the Arctic region’s climate and the results obtained by scientists at the Indian Arctic station Himadri over the past decade. Designed and structured to incorporate multi-dimensional climate change research output, it is a significant contribution toward understanding, among other issues, the role of persistent organic pollutants and mercury, as well as the increase of carbon monoxide during ozone reduction in the Arctic. Features include: Highlights the achievements of climate change research in the Arctic region Includes case studies of scientists in the Arctic and their significant achievements through the Indian research base Himadri Provides a thorough review of palaeoclimate change studies, the impact of climate change on biotic components and the impact of climate change on abiotic components Provides specific details on the study of ozone depletion phenomenon over the Arctic region Covers a wide range of research contributions Details sea ice variability in the context of global warming over the Arctic region Connects seismogenesis with the climate change in the Arctic region This book will be an important read for researchers, students and all interested professionals.

Author : Mark C. Serreze,Roger G. Barry
Publisher : Cambridge University Press
Page : 413 pages
File Size : 51,8 Mb
Release : 2005-10-13
Category : Science
ISBN : 9781139445382

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The Arctic Climate System by Mark C. Serreze,Roger G. Barry Pdf

The Arctic can be viewed as an integrated system, characterised by intimate couplings between its atmosphere, ocean and land, linked in turn to the larger global system. This comprehensive, up-to-date assessment begins with an outline of early Arctic exploration and the growth of modern research. Using an integrated systems approach, subsequent chapters examine the atmospheric heat budget and circulation, the surface energy budget, the hydrologic cycle and interactions between the ocean, atmosphere and sea ice cover. Reviews of recent directions in numerical modelling and the characteristics of past Arctic climates set the stage for detailed discussion of recent climate variability and trends, and projected future states. Throughout, satellite remote sensing data and results from recent major field programs are used to illustrate key processes. The Arctic Climate System provides a comprehensive and accessible overview of the subject for researchers and advanced students in a wide range of disciplines.

Author : Constantin Andronache
Publisher : Elsevier
Page : 300 pages
File Size : 48,9 Mb
Release : 2017-09-28
Category : Science
ISBN : 9780128105504

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Mixed-Phase Clouds by Constantin Andronache Pdf

Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling

Author : Burton G. Hurdle
Publisher : Springer Science & Business Media
Page : 788 pages
File Size : 46,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461580355

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The Nordic Seas by Burton G. Hurdle Pdf

" ... as soon as one has traversed the greater part of the wild sea, one comes upon such a huge quantity of ice that nowhere in the whole world has the like been known." "This ice is of a wonderful nature. It lies at times quite still, as one would expect, with openings or large fjords in it; but sometimes its movement is so strong and rapid as to equal that of a ship running before the wind, and it drifts against the wind as often as with it." Kongespeilet - 1250 A.D. ("The Mirror of Kings") Modern societies require increasing amounts influence on the water mass and on the resulting of scientific information about the environment total environment of the region; therefore, cer tain of its characteristics will necessarily be in whieh they live and work. For the seas this information must describe the air above the sea, included.

Author : National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee on Emerging Research Questions in the Arctic
Publisher : National Academies Press
Page : 240 pages
File Size : 50,8 Mb
Release : 2014-07-31
Category : Science
ISBN : 9780309301862

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The Arctic in the Anthropocene by National Research Council,Division on Earth and Life Studies,Polar Research Board,Committee on Emerging Research Questions in the Arctic Pdf

Once ice-bound, difficult to access, and largely ignored by the rest of the world, the Arctic is now front and center in the midst of many important questions facing the world today. Our daily weather, what we eat, and coastal flooding are all interconnected with the future of the Arctic. The year 2012 was an astounding year for Arctic change. The summer sea ice volume smashed previous records, losing approximately 75 percent of its value since 1980 and half of its areal coverage. Multiple records were also broken when 97 percent of Greenland's surface experienced melt conditions in 2012, the largest melt extent in the satellite era. Receding ice caps in Arctic Canada are now exposing land surfaces that have been continuously ice covered for more than 40,000 years. What happens in the Arctic has far-reaching implications around the world. Loss of snow and ice exacerbates climate change and is the largest contributor to expected global sea level rise during the next century. Ten percent of the world's fish catches comes from Arctic and sub-Arctic waters. The U.S. Geological Survey estimated that up to 13 percent of the world's remaining oil reserves are in the Arctic. The geologic history of the Arctic may hold vital clues about massive volcanic eruptions and the consequent release of massive amount of coal fly ash that is thought to have caused mass extinctions in the distant past. How will these changes affect the rest of Earth? What research should we invest in to best understand this previously hidden land, manage impacts of change on Arctic communities, and cooperate with researchers from other nations? The Arctic in the Anthropocene reviews research questions previously identified by Arctic researchers, and then highlights the new questions that have emerged in the wake of and expectation of further rapid Arctic change, as well as new capabilities to address them. This report is meant to guide future directions in U.S. Arctic research so that research is targeted on critical scientific and societal questions and conducted as effectively as possible. The Arctic in the Anthropocene identifies both a disciplinary and a cross-cutting research strategy for the next 10 to 20 years, and evaluates infrastructure needs and collaboration opportunities. The climate, biology, and society in the Arctic are changing in rapid, complex, and interactive ways. Understanding the Arctic system has never been more critical; thus, Arctic research has never been more important. This report will be a resource for institutions, funders, policy makers, and students. Written in an engaging style, The Arctic in the Anthropocene paints a picture of one of the last unknown places on this planet, and communicates the excitement and importance of the discoveries and challenges that lie ahead.

Author : Lars Aue
Publisher : Unknown
Page : 0 pages
File Size : 54,7 Mb
Release : 2023
Category : Electronic
ISBN : OCLC:1436516254

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Cyclone Impacts on Sea Ice in the Atlantic Arctic Ocean by Lars Aue Pdf

The Arctic is the hot spot of the ongoing, global climate change. Over the last decades, near-surface temperatures in the Arctic have been rising almost four times faster than on global average. This amplified warming of the Arctic and the associated rapid changes of its environment are largely influenced by interactions between individual components of the Arctic climate system. On daily to weekly time scales, storms can have major impacts on the Arctic sea-ice cover and are thus an important part of these interactions within the Arctic climate. The sea-ice impacts of storms are related to high wind speeds, which enhance the drift and deformation of sea ice, as well as to changes in the surface energy budget in association with air mass advection, which impact the seasonal sea-ice growth and melt. The occurrence of storms in the Arctic is typically associated with the passage of transient cyclones. Even though the above described mechanisms how storms/cyclones impact the Arctic sea ice are in principal known, there is a lack of statistical quantification of these effects. [...].