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Time Series Analysis Of Ers 2 Elevation Data For Estimation Of Antarctic Ice Sheet Mass Balance
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Book Synopsis Time Series Analysis of ERS-2 Elevation Data for Estimation of Antarctic Ice Sheet Mass Balance by : Adam Christopher Ferguson
Download or read book Time Series Analysis of ERS-2 Elevation Data for Estimation of Antarctic Ice Sheet Mass Balance written by Adam Christopher Ferguson and published by . This book was released on 2002 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Decadal Mass Balance of the Antarctic Ice Sheet from Satellite Radar Altimetry and Its Contribution by : Yonghong Li
Download or read book Decadal Mass Balance of the Antarctic Ice Sheet from Satellite Radar Altimetry and Its Contribution written by Yonghong Li and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, we estimated the decadal mass balance of the Antarctic ice sheet using the European Space Agency's ERS-1 and ERS-2 satellite radar altimeter data over the time period of 1992 - 2003. Several techniques are developed to improve the processing and analysis of both low and high resolution elevation change time series. Our research results show that the majority of the East Antarctica interior regions are thickening, and this is probably caused by increased precipitation. Finally, many coastal areas, especially in West Antarctica, are experiencing strongly negative elevation change. These thinning trends are probably due to high heat fluxes, ocean warming, and/or basal melting. The overall estimate of Antarctic elevation change north of 81.6°S corresponds to global sea level increase of 0.07 mm/yr based on the high-resolution interior and coastal results.
Book Synopsis Mass Balance of the Cryosphere by : Jonathan L. Bamber
Download or read book Mass Balance of the Cryosphere written by Jonathan L. Bamber and published by Cambridge University Press. This book was released on 2004-02-12 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed and comprehensive overview of observational and modelling techniques for all climate change, environmental science and glaciology researchers.
Download or read book IGARSS 2004 written by and published by . This book was released on 2004 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Global Cryosphere by : Roger Barry
Download or read book The Global Cryosphere written by Roger Barry and published by Cambridge University Press. This book was released on 2011-08-11 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first textbook to address all the components of the Earth's cryosphere – all forms of snow and ice, both terrestrial and marine. It provides a concise but comprehensive summary of snow cover, glaciers, ice sheets, lake and river ice, permafrost, sea ice and icebergs – their past history and projected future state. It is designed for courses at upper undergraduate and graduate level in environmental science, geography, geology, glaciology, hydrology, water resource engineering and ocean sciences. It also provides a superb up-to-date summary for researchers of the cryosphere. The book includes an extensive bibliography, numerous figures and color plates, thematic boxes on selected topics and a glossary. The book builds on courses taught by the authors for many decades at the University of Colorado and the University of Alberta. Whilst there are many existing texts on individual components of the cryosphere, no other textbook covers the whole cryosphere.
Book Synopsis DEM Generation and Ocean Tide Modeling Over Sulzberger Ice Shelf, West Antarctica, Using Synthetic Aperture Radar Interferometry by : Sang-Ho Baek
Download or read book DEM Generation and Ocean Tide Modeling Over Sulzberger Ice Shelf, West Antarctica, Using Synthetic Aperture Radar Interferometry written by Sang-Ho Baek and published by . This book was released on 2006 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Accurate knowledge of the Antarctic ice sheet mass balance plays an important role on the global sea level change. Ocean tides (barotropic and baroclinic) and tidal currents cause basal melting and migration of grounding lines, which are all critical to the accurate determination of ice sheet or ice stream mass balance. Ocean tides in the Antarctic Ocean, especially underneath ice shelves or sea ice, are poorly known primarily due to lack of observations with adequate resolution and knowledge of the bathymetry and ice shelf bottom roughness. InSAR has been used to measure the ice sheet mass balance, ice topography, ice stream velocity, and the location of the grounding lines. To properly use InSAR measurements for ice mass balance and because of their high spatial resolution (tens of meters), knowledge of ocean tides underneath the ice shelves needs to be accurately known and with commensurate resolution. Here two-pass differential InSAR (DInSAR) technique is applied for tidal signal modeling underneath the Sulzberger ice shelf, West Antarctica. The fine resolution (60-m) Digital Elevation Model (DEM) over grounded ice and ice shelf, obtained by combining ERS-1/2 tandem InSAR and ICESat laser altimetry, has been used to correct the topography phase from interferograms, resulting in a more accurate time series of vertical deformation measurements. In this study, it is demonstrated for the first time, that observable tidal constituents can be estimated underneath an ice shelf using an InSAR time series. In particular, it is shown that the time series of observed tidal differences from InSAR agrees well with a number of global/regional ocean tide models such as NAO. 99b, TPXO. 6.2, GOT00.2, CATS02.01, and FES2004, with the regional model, CATS02.01, having the best agreement. The technique developed here can be applied to other ice shelf regions where tide modeling is poor in accuracy and resolution.
Book Synopsis Arctic Research of the United States by :
Download or read book Arctic Research of the United States written by and published by . This book was released on 1996 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Satellite Altimetry and Earth Sciences by : Lee-Lueng Fu
Download or read book Satellite Altimetry and Earth Sciences written by Lee-Lueng Fu and published by Elsevier. This book was released on 2000-11-09 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new level of precision and global coverage provided by satellite altimetry is rapidly advancing studies of ocean circulation. It allows for new insights into marine geodesy, ice sheet movements, plate tectonics, and for the first time provides high-resolution bathymetry for previously unmapped regions of our watery planet and crucial information on the large-scale ocean features on intra-season to interannual time scales. Satellite Altimetry and Earth Sciences has integrated the expertise of the leading international researchers to demonstrate the techniques, missions, and accuracy of satellite altimetry, including altimeter measurements, orbit determination, and ocean circulation models.Satellite altimetry is helping to advance studies of ocean circulation, tides, sea level, surface waves and allowing new insights into marine geodesy. Satellite Altimetry and Earth Sciences provides high resolution bathymetry for previously unmapped regions of our watery planet.Satellite Altimetry and Earth Sciences is for a very broad spectrum of academics, graduate students, and researchers in geophysics, oceanography, and the space and earth sciences. International agencies that fund satellite-based research will also appreciate the handy reference on the applications of satellite altimetry.
Book Synopsis IEEE International Geoscience and Remote Sensing Symposium Proceedings by :
Download or read book IEEE International Geoscience and Remote Sensing Symposium Proceedings written by and published by . This book was released on 2003 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Snow, Ice and Glaciers by : Vijay P. Singh
Download or read book Encyclopedia of Snow, Ice and Glaciers written by Vijay P. Singh and published by Springer Science & Business Media. This book was released on 2011-07-01 with total page 1301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The earth’s cryosphere, which includes snow, glaciers, ice caps, ice sheets, ice shelves, sea ice, river and lake ice, and permafrost, contains about 75% of the earth’s fresh water. It exists at almost all latitudes, from the tropics to the poles, and plays a vital role in controlling the global climate system. It also provides direct visible evidence of the effect of climate change, and, therefore, requires proper understanding of its complex dynamics. This encyclopedia mainly focuses on the various aspects of snow, ice and glaciers, but also covers other cryospheric branches, and provides up-to-date information and basic concepts on relevant topics. It includes alphabetically arranged and professionally written, comprehensive and authoritative academic articles by well-known international experts in individual fields. The encyclopedia contains a broad spectrum of topics, ranging from the atmospheric processes responsible for snow formation; transformation of snow to ice and changes in their properties; classification of ice and glaciers and their worldwide distribution; glaciation and ice ages; glacier dynamics; glacier surface and subsurface characteristics; geomorphic processes and landscape formation; hydrology and sedimentary systems; permafrost degradation; hazards caused by cryospheric changes; and trends of glacier retreat on the global scale along with the impact of climate change. This book can serve as a source of reference at the undergraduate and graduate level and help to better understand snow, ice and glaciers. It will also be an indispensable tool containing specialized literature for geologists, geographers, climatologists, hydrologists, and water resources engineers; as well as for those who are engaged in the practice of agricultural and civil engineering, earth sciences, environmental sciences and engineering, ecosystem management, and other relevant subjects.
Download or read book IGARSS 2003 written by and published by . This book was released on 2003 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Tammy I. Stein Publisher :Institute of Electrical & Electronics Engineers(IEEE) ISBN 13 : Total Pages :828 pages Book Rating :4.:/5 (318 download)
Book Synopsis IGARSS'99 Proceedings by : Tammy I. Stein
Download or read book IGARSS'99 Proceedings written by Tammy I. Stein and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1999 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theme of IGARSS'99, Remote Sensing of the System Earth - A Challenge for the 21st Century, reflects the expectation that earth observation based on satellite remote sensing can significantly contribute to the future study of our environment and the changes it is undergoing, whether from natural causes or human activities. The wide range of topics suggested for presentation is not only an indication of the interdisciplinary nature of this complex task, it also implies an essential need for integrated approaches in remote sensing in order to meet the challenge of modeling and understanding a system as complex as our environment.
Author :United States. Congress. Senate. Committee on Environment and Public Works Publisher : ISBN 13 : Total Pages :172 pages Book Rating :4.F/5 ( download)
Book Synopsis Oversight Hearing by : United States. Congress. Senate. Committee on Environment and Public Works
Download or read book Oversight Hearing written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 2015 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Satellite Altimetry Over Oceans and Land Surfaces by : Detlef Stammer
Download or read book Satellite Altimetry Over Oceans and Land Surfaces written by Detlef Stammer and published by CRC Press. This book was released on 2017-10-31 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite remote sensing, in particular by radar altimetry, is a crucial technique for observations of the ocean surface and of many aspects of land surfaces, and of paramount importance for climate and environmental studies. This book provides a state-of-the-art overview of the satellite altimetry techniques and related missions, and reviews the most-up-to date applications to ocean dynamics and sea level. It also discusses related space-based observations of the ocean surface and of the marine geoid, as well as applications of satellite altimetry to the cryosphere and land surface waters; operational oceanography and its applications to navigation, fishing and defense.
Book Synopsis Gravity, Geoid and Geodynamics 2000 by : Michael G. Sideris
Download or read book Gravity, Geoid and Geodynamics 2000 written by Michael G. Sideris and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium continued the tradition of mid-term meetings held between the joint symposia of International Geoid and Gravity Commissions. This time, geodynamics was chosen as the third topic to accompany the traditional topics of gravity and geoid. The symposium thus aimed at bringing together geodesists and geophysicists working in the general areas of gravity, geoid and geodynamics. Besides covering the traditional research areas, special attention was paid to the use of geodetic methods for geodynamics studies, dedicated satellite missions, airborne surveys, geodesy and geodynamics of arctic regions, and the integration of geodetic and geophysical information.
Book Synopsis Exploration of Subsurface Antarctica by : M.J. Siegert
Download or read book Exploration of Subsurface Antarctica written by M.J. Siegert and published by Geological Society of London. This book was released on 2018-01-08 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our appreciation of glaciological processes in Antarctica suffers from a lack of observations in regions where numerical models indicate the ice sheet to be susceptible to ocean and/or atmospheric warming. The solution lies in the use and development of glacier geophysics. In this volume we present a series of papers that demonstrate how geophysics can be deployed in Antarctica to comprehend: (1) boundary conditions that influence ice flow such as subglacial topography, the distribution of basal water and ice-sheet rheology; (2) phenomena that might affect ice-flow processes, such as complex internal ice-sheet structures and the proposition of large stores of hitherto unappreciated groundwater; and (3) how glacigenic sediments and formerly glaciated terrain on, and surrounding, the continent can inform us about past ice-sheet dynamics. The volume also takes a historical view on developments leading to current knowledge, examines active ice-sheet processes, and points the way forward on how geophysics can advance quantitative understanding of Antarctic ice-sheet behaviour.
Book Synopsis Interannual and Decadal Variations of Antarctic Ice Shelves Using Multi-mission Satellite Radar Altimetry, and Links with Oceanic and Atmospheric Forcings by : Fernando Serrano Paolo
Download or read book Interannual and Decadal Variations of Antarctic Ice Shelves Using Multi-mission Satellite Radar Altimetry, and Links with Oceanic and Atmospheric Forcings written by Fernando Serrano Paolo and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antarctica's ice shelves, the floating extensions of the ice sheet, exert an important dynamic constraint on the flow of ice from the grounded ice sheet to the ocean, and hence on changes in global sea level. Thinning of an ice shelf reduces its ability to restrain the ice discharge from the grounded ice-sheet interior. Since the grounded ice sheet responds to perturbations in the ice shelves, predicting sea-level rise requires that we understand the processes that determine ice-shelf response to climate variability. Our understanding of these processes is, however, still too rudimentary to allow prediction of ice-sheet change under projected future climate states. This dissertation presents improved procedures to construct 18-year time series (1994-2012) of ice-shelf height around the entire Antarctic continent by merging data from multiple overlapping satellite radar altimeter missions (ERS-1, ERS-2, and Envisat). The resulting data set has a temporal resolution of 3 months and a spatial resolution of ~ 30 km. Improved procedures for trend analysis are introduced, and a more accurate alternative for uncertainty estimation to the standard error propagation approach is proposed. Ice-shelf height variability is analyzed using orthogonal-component decomposition of multivariate time series, spectral estimation and background-noise statistical tests. The derived data set and method allow to estimate, reliably and with defined formal uncertainties, the temporal progression and spatial structure of changes in ice-shelf height and volume in Antarctica between 1994 and 2012. The results reveal that, overall, Antarctic ice-shelf volume loss is accelerating. Furthermore, significant interannual variability in the Amundsen Sea ice shelves is strongly correlated with the low-frequency mode of El Niño-Southern Oscillation. These findings may ultimately allow us to understand the processes driving ice-shelf changes sufficiently to improve our models for predicting future ice loss.
