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Interactions Between An Antarctic Ice Shelf And Land Fast Sea Ice Detected By In Situ And Satellite Measurements
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Book Synopsis Interactions Between an Antarctic Ice Shelf and Land-fast Sea Ice Detected by In-situ and Satellite Measurements by : Gemma Marie Brett
Download or read book Interactions Between an Antarctic Ice Shelf and Land-fast Sea Ice Detected by In-situ and Satellite Measurements written by Gemma Marie Brett and published by . This book was released on 2020 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Antarctic Sea Ice by : Martin O. Jeffries
Download or read book Antarctic Sea Ice written by Martin O. Jeffries and published by American Geophysical Union. This book was released on 1998-02-04 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 74. In a 1971 Scientific Committee on Antarctic Research report that reviewed polar contrasts in sea ice, Lyn Lewis and Willy Weeks made the following observation: "People who study sea ice in the Arctic Basin are commonly asked if they have ever studied ice in Antarctica, and they answer 'why bother, it's the same old stuff." Noting this was "fortunately true to a considerable extent," they added "It is clear that future work will depend critically on the logistics facilities available to allow surface observations beyond the fast ice edge at all seasons of the year. Of almost equal importance will be the development of instruments and recording equipment suited for use in the polar environment" (Lewis, E. L., and W. F. Weeks, Sea Ice: Some Polar Contrasts, in, Antarctic Ice and Water Masses, edited by G. Deacon, Scientific Committee on Antarctic Research, Cambridge, 23-34, 1971). Lewis and Weeks made no specific mention of Earth-orbiting satellites, on which the first passive microwave sensor became operational in December 1972. Less than a year later the giant Weddell Polynya was observed for the first time. Perhaps more than any other development, this unexpected feature illustrated the potential to greatly expand our knowledge of sea ice through the application of spaceborne remote sensing. Simultaneously, it acted as a catalyst for a significant increase in the level of research.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309456002 Total Pages :83 pages Book Rating :4.3/5 (94 download)
Book Synopsis Antarctic Sea Ice Variability in the Southern Ocean-Climate System by : National Academies of Sciences, Engineering, and Medicine
Download or read book Antarctic Sea Ice Variability in the Southern Ocean-Climate System written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-04-24 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Papers from the International Symposium on Sea Ice and Its Interactions with the Ocean, Atmosphere, and Biosphere by : Martin O. Jeffries
Download or read book Papers from the International Symposium on Sea Ice and Its Interactions with the Ocean, Atmosphere, and Biosphere written by Martin O. Jeffries and published by . This book was released on 2001 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Satellite Observations of Atmosphere-ice-ocean Interactions Around Antarctica by : Susheel Adusumilli
Download or read book Satellite Observations of Atmosphere-ice-ocean Interactions Around Antarctica written by Susheel Adusumilli and published by . This book was released on 2021 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ongoing increases in global sea level, projected to continue through the 21st century, have widespread impacts on coastal communities and infrastructure. Uncertainties in model projections of Antarctic Ice Sheet mass represent a major contribution to uncertainties in projected sea level rise. Many modelling studies have identified the important role of climate variability in driving ice sheet change; however, there have not been sufficient observational studies on the impact of this variability on the ice sheet. The Antarctic Ice Sheet is vast, and remote; therefore, satellites are the only feasible instruments with which we can measure changes in ice mass. In particular, satellite radar and laser altimeter measurements of changes in ice sheet height are a valuable tool to monitor changes in mass of both grounded ice and floating ice shelves. In this dissertation, we use satellite altimetry together with other ancillary datasets to identify the influences of variability in atmospheric and oceanic conditions on ice sheet mass. We demonstrate of how satellite radar altimetry data can be used to identify the climate drivers ice shelf change during 1994-2016 in the Antarctic Peninsula, a region that has changed rapidly during that period. In the western Antarctic Peninsula, the rates of ocean-driven basal melting exceeded values required to maintain constant mass. Extending this analysis to all Antarctic ice shelves, we find large interannual variability in the total volume flux of freshwater due to basal melting exported into the Southern Ocean, with the highest values occurring during the late 2000s from ice shelves in West Antarctica. Finally, we demonstrate how laser altimetry can be used to monitor large changes in snowfall at seasonal time scales over the grounded portion of the West Antarctic Ice Sheet during the 2019. The results described in this dissertation together highlight the value of satellite altimetry in observing variability in ice sheet mass at seasonal to interannual time scales. We expect that they will help improve model projections of sea level rise through a better understanding of the processes driving ice sheet change, and by providing improved constraints on the current state of the atmosphere-ice-ocean system.
Book Synopsis Oceanobs'19: An Ocean of Opportunity. Volume III by : Tong Lee
Download or read book Oceanobs'19: An Ocean of Opportunity. Volume III written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis Oceanobs'19: An Ocean of Opportunity. Volume I by : Tong Lee
Download or read book Oceanobs'19: An Ocean of Opportunity. Volume I written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Antarctic Sea Ice, 1973-1976 written by and published by . This book was released on 1983 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from the Electrically Scanning Microwave Radiometer (ESMR) on the Nimbus 5 satellite are used to determine the extent and distribution of Antarctic sea ice. The characteristics of the southern ocean, the mathematical formulas used to obtain quantitative sea ice concentrations, the general characteristics of the seasonal sea ice growth/decay cycle and regional differences, and the observed seasonal growth/decay cycle for individual years and interannual variations of the ice cover are discussed. The sea ice data from the ESMR are presented in the form of color-coded maps of the Antarctic and the southern oceans. The maps show brightness temperatures and concentrations of pack ice averaged for each month, 4-year monthly averages, and month-to-month changes. Graphs summarizing the results, such as areas of sea ice as a function of time in the various sectors of the southern ocean are included. The images demonstrate that satellite microwave data provide unique information on large-scale sea ice conditions for determining climatic conditions in polar regions and possible global climatic changes.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions between ice and ocean measured with phase-sensitive radar near an Antarctic ice-shelf grounding line by : A. Jenkins
Download or read book Interactions between ice and ocean measured with phase-sensitive radar near an Antarctic ice-shelf grounding line written by A. Jenkins and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Freezing Season by : G. Norman Lippert
Download or read book The Freezing Season written by G. Norman Lippert and published by CreateSpace. This book was released on 2015-08-24 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ashley is a young woman broken by choices- some her own, some not. Looking to escape the haunting grip of her past, she embarks on a several-state winter road trip only to pass a sight that changes her life completely: jutting from a dirty snow bank, a small human hand holds its palm up to the sky. Driven by an uncharacteristic need for redemption, Ashley returns to investigate. There, she encounters a seemingly helpful, if disturbed local man and the county sheriff. It isn't until the sheriff begins to question Ashley that the terror of her situation dawns: the body in the snow isn't a snowplow accident, but a murder victim, and by coming back to investigate, Ashley has placed herself directly in the serial killers' path. As the next twenty-two hours unfold, Ashley is confronted with a terrible choice: take advantage of her one chance for escape, or attempt rescue of the killers' last remaining victim, possibly sacrificing herself in the process. Only by embracing the ghosts of her past will Ashley survive her descent into the disturbing madness of the freezing season.
Book Synopsis The Global Coastal Ocean - Regional Studies and Syntheses by : Kenneth H. Brink
Download or read book The Global Coastal Ocean - Regional Studies and Syntheses written by Kenneth H. Brink and published by Harvard University Press. This book was released on 2005 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Geophysics of Sea Ice by : Norbert Untersteiner
Download or read book The Geophysics of Sea Ice written by Norbert Untersteiner and published by Springer. This book was released on 2013-12-19 with total page 1197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the proceedings of the NATO Advanced Study Institute on Air-Sea-Ice Interaction held September 28-October 10, 1981 in Acquafredda di maratea, Italy. Intent is to present the topic of sea ice in the broad and interdisciplinary context of atmospheric and oceanographic science.
Download or read book Earth Resources written by and published by . This book was released on 1983 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sea-ice and Ice-shelf Variability in the Amundsen Sea Embayment, West Antarctica by : Keyleigh N Wallick
Download or read book Sea-ice and Ice-shelf Variability in the Amundsen Sea Embayment, West Antarctica written by Keyleigh N Wallick and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global sea-level rise contributed by Antarctic ice-mass loss could soon outpace all other sources. The ice-mass-loss signal of the Antarctic Ice Sheet is dominated by the Amundsen Sea Embayment (ASE) in West Antarctica. Ice shelves in the ASE influence the ice-mass-loss rates of the Antarctic Ice Sheet through their ability to buttress the grounded ice and modulate ice-flow speed. Ice shelves reduce ice flow and retreat by buttressing grounded ice. Previous studies show that sea ice can buttress ice shelves via mechanical bonding and provide protection from ocean swells. Whereas several studies have examined the trends in West Antarctic sea ice and dynamics of ice shelves in the ASE separately, the interaction between ice shelves and sea ice in the ASE is poorly understood. This study investigated the relationship between sea-ice-area (SIA) anomalies and ice-shelf velocities of three large ASE ice shelves, of Thwaites Eastern Ice Shelf (TEIS), Pine Island Glacier Ice Shelf (PIGIS) and Crosson Ice Shelf (CIS), on seasonal and monthly timescales from summer 2001-02 to 2021-22 and 2014 to 2022, respectively. SIA anomalies and ice-shelf velocities were derived from satellite remote sensing data. Sea ice in the ASE experienced four- to seven-year periods of relatively consistent positive or negative SIA anomalies. Time series of TEIS average velocity shows increased velocity in the early 2000's, followed by relative stability, then again an increase from the late-2010's onwards. Time series of the PIGIS average velocity shows increased velocities over the 20-year period, with consistent acceleration from the late-2010's onwards. Time series of the CIS average velocity shows relatively stable to slightly decreasing trends over the 20-year period. Correlation analysis of sea ice and ice shelves predominantly showed no significant relationship. Fewer than 15% of Spearman's correlation coefficients between the SIA anomalies and ice-shelf velocities were statistically significant. Therefore, results of this study indicate no apparent relationship between sea ice and ice-shelf velocity in the ASE, at least on seasonal and monthly time scales. The relationship may be more evident on an episodic basis than in a long-term record, as previous studies identified the influence of sea-ice events (i.e., sea-ice breakout or retreat) on Antarctic ice shelves on daily to weekly time scales.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Intergovernmental Panel on Climate Change (IPCC) Publisher :Cambridge University Press ISBN 13 :9781009157971 Total Pages :755 pages Book Rating :4.1/5 (579 download)
Book Synopsis The Ocean and Cryosphere in a Changing Climate by : Intergovernmental Panel on Climate Change (IPCC)
Download or read book The Ocean and Cryosphere in a Changing Climate written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2022-04-30 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
