Ice shelf

An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland and Canada. (Wikipedia.org)






Conferences related to Ice shelf

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2020 IEEE Radar Conference (RadarConf20)

Annual IEEE Radar Conference

  • 1996 IEEE Radar Conference

  • 1997 IEEE Radar Conference

  • 1998 IEEE Radar Conference

  • 1999 IEEE Radar Conference

  • 2000 IEEE International Radar Conference

  • 2001 IEEE Radar Conference

  • 2002 IEEE Radar Conference

  • 2003 IEEE Radar Conference

  • 2004 IEEE Radar Conference

  • 2005 IEEE International Radar Conference

  • 2006 IEEE Radar Conference

  • 2007 IEEE Radar Conference

  • 2008 IEEE Radar Conference

    The 2008 IEEE Radar Conference will focus on the key aspects of radar theory and applications as listed below. Exploration of new avenues and methodologies of radar signal processing will also be encouraged. Tutorials will be held in a number of fields of radar technology. The Conference will cover all aspects of radar systems for civil, security and defense applications.

  • 2009 IEEE Radar Conference

    The conference's scope is civil and military radar, including science, technology, and systems. The theme for RADAR '09 is "Radar: From Science to Systems," emphasizing scientific or observational requirements and phenomenology that lead to the systems that we in the radar community develop.

  • 2010 IEEE International Radar Conference

    RADAR Systems, RADAR technology

  • 2011 IEEE Radar Conference (RadarCon)

    RadarCon11 will feature topics in radar systems, technology, applications, phenomenology,modeling, & signal processing. The conference theme, In the Eye of the Storm, highlights the strong regional interest in radar for severe weather analysis and tracking. Broader implications of the theme reflect global interests such as radar's role in assessing climate change, supporting myriad defense applications, as well as issues with spectrum allocation and management.

  • 2012 IEEE Radar Conference (RadarCon)

    The 2012 IEEE Radar Conference will host 400 to 600 attendees interested in innovations and developments in radar technology. The radar related topics will include presentations describing developments in radar systems and their implementations, phenomenology, target and clutter modeling, component advances, signal processing and data processing utilizing advanced algorithms. The conference will also include exhibits by vendors of radar systems, radar components, instrumentation, related software and publ

  • 2013 IEEE Radar Conference (RadarCon)

    The conference theme is The Arctic The New Frontier as it presents a vast and challenging environment for which radar systems operating in a multi-sensor environment are currently being developed for deployment on space, air, ship and ground platforms and for both remote sensing of the environment and for the monitoring of human activity. It is one of the major challenges and applications being pursued in the field of radar development in Canada.

  • 2014 IEEE Radar Conference (RadarCon)

    The 2014 IEEE Radar Conference will showcase innovations and developments in radar technology. Topics will include presentations describing developments in radar systems and their implementations, phenomenology, target and clutter modeling, signal processing, component advances, etc.

  • 2015 IEEE Radar Conference (RadarCon)

    The scope of the IEEE 2015 International Radar Conference includes all aspects of civil and military radar. Topics range from fundamental theory to cutting-edge applications, from signal processing, modeling, simulation to hardware implementation and experimental results.

  • 2016 IEEE Radar Conference (RadarCon)

    A continuing series of annual RADAR Conferences IEEE-AESS

  • 2017 IEEE Radar Conference (RadarCon)

    This conference will be a continuation of the annual IEEE radar series (formerly the IEEE National Radar conference). These conferences cover the many disciplines that span the applications of modern radar systems. This includes systems-level through subsystem and component technologies, antennas, and signal processing (deterministic and adaptive). The scope includes systems architectures of monostatic, bistatic and multistatic, and ground-based, airborne, and spaceborn realizations.

  • 2018 IEEE Radar Conference (RadarConf18)

    This conference will be a continuation of the annual IEEE radar series (formerly the IEEE National Radar conference). These conferences cover the many disciplines that span the applications of modern radar systems, including systems-level through subsystem and component technologies, antennas, and signal processing (deterministic and adaptive). The scope includes systems architectures of monostatic, bistatic and multistatic, and ground-based, airborne, shipborne, and spaceborne realizations.


Oceans 2020 MTS/IEEE GULF COAST

To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.

  • OCEANS '96

  • OCEANS '97

  • OCEANS '98

  • OCEANS '99

  • OCEANS 2000

  • OCEANS 2001

  • OCEANS 2002

  • OCEANS 2003

  • OCEANS 2004

  • OCEANS 2005

  • OCEANS 2006

  • OCEANS 2007

  • OCEANS 2008

    The Marine Technology Society (MTS) and the Oceanic Engineering Society (OES) of the Institute of Electrical and Electronic Engineers (IEEE) cosponsor a joint conference and exposition on ocean science, engineering, education, and policy. Held annually in the fall, it has become a focal point for the ocean and marine community to meet, learn, and exhibit products and services. The conference includes technical sessions, workshops, student poster sessions, job fairs, tutorials and a large exhibit.

  • OCEANS 2009

  • OCEANS 2010

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2011

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2012

    Ocean related technology. Tutorials and three days of technical sessions and exhibits. 8-12 parallel technical tracks.

  • OCEANS 2013

    Three days of 8-10 tracks of technical sessions (400-450 papers) and concurent exhibition (150-250 exhibitors)

  • OCEANS 2014

    The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2015

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2016

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 500 technical papers and 150 -200 exhibits.

  • OCEANS 2017 - Anchorage

    Papers on ocean technology, exhibits from ocean equipment and service suppliers, student posters and student poster competition, tutorials on ocean technology, workshops and town meetings on policy and governmental process.

  • OCEANS 2018 MTS/IEEE Charleston

    Ocean, coastal, and atmospheric science and technology advances and applications

  • OCEANS 2021 San Diego

    Covering Oceanography as a whole - instrumentation, science, research, biology, subsea and surface vehicles, autonomous vehicles, AUV, ROV, manned submersibles, global climate, oceanography, oceanology, rivers, estuaries, aquatic life and biology, water purity, water treatment, sonar, mapping, charting, navigation, navigation safety, oil and gas, military, and commercial applications of the oceans, subsea mining, hot vents, adn more.


2020 IEEE/MTT-S International Microwave Symposium (IMS)

The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 1996 IEEE/MTT-S International Microwave Symposium - MTT '96

  • 1997 IEEE/MTT-S International Microwave Symposium - MTT '97

  • 1998 IEEE/MTT-S International Microwave Symposium - MTT '98

  • 1999 IEEE/MTT-S International Microwave Symposium - MTT '99

  • 2000 IEEE/MTT-S International Microwave Symposium - MTT 2000

  • 2001 IEEE/MTT-S International Microwave Symposium - MTT 2001

  • 2002 IEEE/MTT-S International Microwave Symposium - MTT 2002

  • 2003 IEEE/MTT-S International Microwave Symposium - MTT 2003

  • 2004 IEEE/MTT-S International Microwave Symposium - MTT 2004

  • 2005 IEEE/MTT-S International Microwave Symposium - MTT 2005

  • 2006 IEEE/MTT-S International Microwave Symposium - MTT 2006

  • 2007 IEEE/MTT-S International Microwave Symposium - MTT 2007

  • 2008 IEEE/MTT-S International Microwave Symposium - MTT 2008

  • 2009 IEEE/MTT-S International Microwave Symposium - MTT 2009

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2010 IEEE/MTT-S International Microwave Symposium - MTT 2010

    Reports of research and development at the state-of-the-art of the theory and techniques related to the technology and applications of devices, components, circuits, modules and systems in the RF, microwave, millimeter-wave, submillimeter-wave and Terahertz ranges of the electromagnetic spectrum.

  • 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2012 IEEE/MTT-S International Microwave Symposium - MTT 2012

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2013 IEEE/MTT-S International Microwave Symposium - MTT 2013

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter -wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2014 IEEE/MTT-S International Microwave Symposium - MTT 2014

    IMS2014 will cover developments in microwave technology from nano devices to system applications. Technical paper sessions, interactive forums, plenary and panel sessions, workshops, short courses, industrial exhibits, and a wide array of other technical activities will be offered.

  • 2015 IEEE/MTT-S International Microwave Symposium - MTT 2015

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics. The IMS includes technical sessions, both oral and interactive, worksh

  • 2016 IEEE/MTT-S International Microwave Symposium - IMS 2016

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2017 IEEE/MTT-S International Microwave Symposium - IMS 2017

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.

  • 2018 IEEE/MTT-S International Microwave Symposium - IMS 2018

    Microwave theory and techniques, RF/microwave/millimeter-wave/terahertz circuit design and fabrication technology, radio/wireless communication.

  • 2019 IEEE/MTT-S International Microwave Symposium - IMS 2019

    Comprehensive symposium on microwave theory and techniques including active and passive circuit components, theory and microwave systems.

  • 2021 IEEE/MTT-S International Microwave Symposium - IMS 2021

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.

  • 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2024 IEEE/MTT-S International Microwave Symposium - IMS 2024

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2025 IEEE/MTT-S International Microwave Symposium - IMS 2025

    The IEEE International Microwave Symposium (IMS) is the world s foremost conferencecovering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies;encompassing everything from basic technologies to components to systems including thelatest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulationand more. The IMS includes technical and interactive sessions, exhibits, student competitions,panels, workshops, tutorials, and networking events.

  • 2026 IEEE/MTT-S International Microwave Symposium - IMS 2026

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2029 IEEE/MTT-S International Microwave Symposium - IMS 2029

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2031 IEEE/MTT-S International Microwave Symposium - IMS 2031

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2036 IEEE/MTT-S International Microwave Symposium - IMS 2036

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.


OCEANS 2020 - SINGAPORE

An OCEANS conference is a major forum for scientists, engineers, and end-users throughout the world to present and discuss the latest research results, ideas, developments, and applications in all areas of oceanic science and engineering. Each conference has a specific theme chosen by the conference technical program committee. All papers presented at the conference are subsequently archived in the IEEE Xplore online database. The OCEANS conference comprises a scientific program with oral and poster presentations, and a state of the art exhibition in the field of ocean engineering and marine technology. In addition, each conference can have tutorials, workshops, panel discussions, technical tours, awards ceremonies, receptions, and other professional and social activities.

  • OCEANS 2005 - EUROPE

  • OCEANS 2006 - ASIA PACIFIC

  • OCEANS 2007 - EUROPE

    The theme 'Marine Challenges: Coastline to Deep Sea' focuses on the significant challenges, from the shallowest waters around our coasts to the deepest subsea trenches, that face marine, subsea and oceanic engineers in their drive to understand the complexities of the world's oceans.

  • OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean

  • OCEANS 2009 - EUROPE

  • OCEANS 2010 IEEE - Sydney

  • OCEANS 2011 - SPAIN

    All Oceans related technologies.

  • OCEANS 2012 - YEOSU

    The OCEANS conferences covers four days with tutorials, exhibits and three days of parallel tracks that address all aspects of oceanic engineering.

  • OCEANS 2013 - NORWAY

    Ocean related technologies. Program includes tutorials, three days of technical papers and a concurrent exhibition. Student poster competition.

  • OCEANS 2014 - TAIPEI

    The OCEANS conference covers all aspects of ocean engineering from physics aspects through development and operation of undersea vehicles and equipment.

  • OCEANS 2015 - Genova

    The Marine Technology Society and the Oceanic Engineering Society of IEEE cosponsor a joint annual conference and exposition on ocean science, engineering and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 50-200 exhibits.

  • OCEANS 2016 - Shanghai

    Papers on ocean technology, exhibits from ocean equipment and service suppliers, student posters and student poster competition, tutorial on ocean technology, workshops and town hall meetings on policy and governmental process.

  • OCEANS 2017 - Aberdeen

    Papers on ocean technology, exhibits from ocean equipment and service suppliers, student posters and student poster competition, tutorials on ocean technology, workshops and town hall meetings on policy and governmental process.

  • 2018 OCEANS - MTS/IEEE Kobe Techno-Ocean (OTO)

    The conference scope is to provide a thematic umbrella for researchers working in OCEAN engineering and related fields across the world to discuss the problems and potential long term solutions that concernnot only the oceans in Asian pacific region, but the world ocean in general.

  • OCEANS 2019 - Marseille

    Research, Development, and Operations pertaining to the Oceans


IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium

All fields of satellite, airborne and ground remote sensing.



Periodicals related to Ice shelf

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Geoscience and Remote Sensing Letters, IEEE

It is expected that GRS Letters will apply to a wide range of remote sensing activities looking to publish shorter, high-impact papers. Topics covered will remain within the IEEE Geoscience and Remote Sensing Societys field of interest: the theory, concepts, and techniques of science and engineering as they apply to the sensing of the earth, oceans, atmosphere, and space; and ...


Geoscience and Remote Sensing, IEEE Transactions on

Theory, concepts, and techniques of science and engineering as applied to sensing the earth, oceans, atmosphere, and space; and the processing, interpretation, and dissemination of this information.


Nuclear Science, IEEE Transactions on

All aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.


Oceanic Engineering, IEEE Journal of

Bayes procedures; buried-object detection; dielectric measurements; Doppler measurements; geomagnetism; sea floor; sea ice; sea measurements; sea surface electromagnetic scattering; seismology; sonar; acoustic tomography; underwater acoustics; and underwater radio communication.




Xplore Articles related to Ice shelf

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Retrieval and Validation of Sea Ice Concentration from AMSR-E/AMSR2 in Polar Regions

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

Sea ice concentration (SIC) is an important sea ice parameter of the atmosphere-ice-ocean system in the polar region. Daily 6.25 km AMSR-E/AMSR2 SIC from Bremen University (UB) is one of the widely used SIC products. In this paper, MODIS data and aerial image are used to validate this product. The results show that the daily mean AMSR-E ASI products underestimate ...


Elevation and Freeboard Changes of Ross Sea Ice and Ice Shelf using Icesat

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006

In this paper, ICESat (Ice, Cloud, and land Elevation Satellite)-based estimates of sea ice and ice shelf elevation change and the sea ice freeboard changes in the Ross Sea Region of west Antarctic were studied. To process the data, a 3-step procedure was developed. ICESat datasets of three releases were used for the study: laser 1 and laser 2A (2003) ...


Increased export of grounded ice after the collapse of northern Larsen ice shelf, Antarctic Peninsula, observed by Envisat ASAR

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007

Time series of satellite radar image data of Envisat ASAR were used to study the retreat of ice shelves and glaciers at northern Larsen Ice Shelf,Antarctic Peninsula, up to March 2007. After the disintegration event in March 2002, the small remaining ice shelf section of Larsen B decreased further in area. The retreat of grounded glacier ice continued also. The ...


Glacier flow and topography measurements with TerraSar-X and TanDEM-X

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011

We report on results from spaceborne velocity and topography measurements of the Drygalski glacier, Antarctic Peninsula. For our analysis we use a time series of TerraSAR-X data acquired between 2007 and 2010 which enables us to perform an error analysis and to determine higher order velocity parameters such as acceleration. Our estimated accuracy for velocity estimation is on the order ...


Recent Retreat of Wilkins Ice Shelf Reveals New Insights in Ice Shelf Breakup Mechanisms

IEEE Geoscience and Remote Sensing Letters, 2009

The disintegration of various ice shelves on the Antarctic Peninsula has demonstrated their vulnerability and impacts on tributary glaciers. A satellite image of Wilkins Ice Shelf (WIS) from July of 2007 reveals the formation of a large new double fracture, accompanied by numerous small fractures. We show that bending stresses induced by buoyancy forces were responsible for fracture formation. On ...



Educational Resources on Ice shelf

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IEEE-USA E-Books

  • Retrieval and Validation of Sea Ice Concentration from AMSR-E/AMSR2 in Polar Regions

    Sea ice concentration (SIC) is an important sea ice parameter of the atmosphere-ice-ocean system in the polar region. Daily 6.25 km AMSR-E/AMSR2 SIC from Bremen University (UB) is one of the widely used SIC products. In this paper, MODIS data and aerial image are used to validate this product. The results show that the daily mean AMSR-E ASI products underestimate SICs about 17.9% based on the aerial image, and underestimate SICs about 8.5% based on MODIS image. The sea ice extent (SIE) and sea ice area (SIA) which are derived from SIC by ASI algorithm, Dynamic Tie-point ASI algorithm (DT-ASI) as well as NT algorithm are compared.

  • Elevation and Freeboard Changes of Ross Sea Ice and Ice Shelf using Icesat

    In this paper, ICESat (Ice, Cloud, and land Elevation Satellite)-based estimates of sea ice and ice shelf elevation change and the sea ice freeboard changes in the Ross Sea Region of west Antarctic were studied. To process the data, a 3-step procedure was developed. ICESat datasets of three releases were used for the study: laser 1 and laser 2A (2003) and laser 3D (2005). It was found that all of them have suspect elevation data and extensive quality control was needed to remove the suspect points before a bias-free surface could be generated. Also obtained sea-ice freeboard from ICESat elevation data showed unusual negative results. Simple, universe, and ordinary kriging interpolations as well as inverse distance weights interpolation were tested and evaluated. It is found that the ordinary kriging method based on an unknown mean performed the best and achieved the smallest RMS prediction error (< 1 m) based on cross-validation technique. Seasonal elevation changes of the two complete datasets (laser 1 and laser 2A) have been analyzed and results indicate that (1) the mean elevation of sea ice increased about 0.89 m, with a mean increase of 0.55 m for the sea ice/ice shelf transition zone; (2) the mean elevation of the ice sheet decreased about 0.17 m; (3) maximum elevation of sea ice increased 1.13 m; (4) maximum elevation of ice shelf increased 5.36 m; (5) the transitional region has the largest elevation change: ~60 % of the region shown 48 to 20 m decreases, only small portions shown 20- 40 m increases. Inter-annual elevation changes obtained from laser 2A and laser 3D for sea ice indicate that (1) minimum surface elevation has decreased as 5.27 m with increase of mean surface about 0.12 m; (2) maximum surface elevation from Austral spring 2003 to spring 2005 has decreased as 12.69 m. It is suggested that the freeboard directly resulted from ICESat data has large negative values and needs better geoid or mean sea surface.

  • Increased export of grounded ice after the collapse of northern Larsen ice shelf, Antarctic Peninsula, observed by Envisat ASAR

    Time series of satellite radar image data of Envisat ASAR were used to study the retreat of ice shelves and glaciers at northern Larsen Ice Shelf,Antarctic Peninsula, up to March 2007. After the disintegration event in March 2002, the small remaining ice shelf section of Larsen B decreased further in area. The retreat of grounded glacier ice continued also. The glacier velocities above previous Larsen B increased further since 2004, but the acceleration has been smaller than in the first two years after the collapse in 2002. Ice export increased rapidly after the glaciers started to calve directly into the ocean. The sea level contribution due to discharge of grounded ice above the disintegrated ice shelf sections amounts to about 6% of the present glacier and ice sheet contribution to sea level rise.

  • Glacier flow and topography measurements with TerraSar-X and TanDEM-X

    We report on results from spaceborne velocity and topography measurements of the Drygalski glacier, Antarctic Peninsula. For our analysis we use a time series of TerraSAR-X data acquired between 2007 and 2010 which enables us to perform an error analysis and to determine higher order velocity parameters such as acceleration. Our estimated accuracy for velocity estimation is on the order of 2 cm/day and we find a weak slow down at the terminus of the glacier. Very first TanDEM-X single pass interferometric data sets acquired in 2010 allow us to reconstruct the 3D-glacier topography with unprecedented accuracy, delivering both, surface topography and roughness.

  • Recent Retreat of Wilkins Ice Shelf Reveals New Insights in Ice Shelf Breakup Mechanisms

    The disintegration of various ice shelves on the Antarctic Peninsula has demonstrated their vulnerability and impacts on tributary glaciers. A satellite image of Wilkins Ice Shelf (WIS) from July of 2007 reveals the formation of a large new double fracture, accompanied by numerous small fractures. We show that bending stresses induced by buoyancy forces were responsible for fracture formation. On February 28-29, 2008, an area of about 425 km<sup>2</sup> broke up at a narrow connection of the WIS to one of its confining islands. In contrast to Larsen B Ice Shelf, melt ponds that drain into crevasses played no role in this breakup process. A further breakup of 160 km<sup>2</sup> in the same area occurred on May 30-31, 2008 and documented that breakup can occur during austral winter. Radar images reveal a frozen surface, which demonstrates that in this breakup, surface melt water did not play a role. We conclude that ice shelves with strong thickness contrasts carry potential for disintegration. The fact that the WIS experienced two breakup events under two widely contrasting surface conditions (one during the melt season and one during winter) reveals that there may be several reasons for the disintegration of ice shelves that operate under differing circumstances.

  • Tidal deflection of Ross Ice Shelf, Antarctica, observed by Sentinel-1A double-differential interferometric SAR

    This paper reports the tidal deflection of Ross Ice Shelf, Antarctica, observed from Sentinel-1A data processed by using double-differential interferometric synthetic aperture radar (DDInSAR) technique. Sentinel-1A single look complex SAR data of 2015-2016, along the east and the west coast of Ross Ice Shelf, were obtained and interferometrically processed by Sentinel Application Platform (SNAP) program. GETASSE30 digital elevation model was used to remove the topographic fringes. After the phase unwrapping using SNAPHU program, the two interferograms were subtracted to obtain DDInSAR image to highlight the tidal deflection signals under the assumption of steady gravitational glacial flow. As a result, we can identify grounding lines and hinge zones in the east and the west coast of Ross Ice Shelf. The wider hinge zone in the west indicates thicker ice shelf than the east. Comparison of the tidal deflection with tidal model remind us the importance of barometric correction.

  • Geophysical parameters estimation with TerraSAR-X of outlet glaciers in the Transantarctic Mountains

    We discuss TerraSAR-X observations of three Transantarctic Mountain (TAM) outlet glaciers: Byrd, Nimrod and Beardmore. High resolution TerraSAR-X data acquired over the area in late 2009 and late 2010 using left looking mode were processed to generate detailed 2D ice velocity maps by means of speckle tracking. The ice dynamics from East Antarctica to Ross Ice Shelf through the three TAM fjords is compared. The position of the grounding line is determined by DInSAR and compared to other sources. The surface velocity at the grounding line is needed for estimating the magnitude of ice flux from East Antarctica fast glaciers into the Ross Ice Shelf.

  • Design and Performance of the Icepod LC-130 Deep and Shallow Radar Sounders

    This paper describes the design and operation of two radar systems developed for the Icepod, a 2.5m long cylindrical sensor housing, 60cm in diameter built on a metal frame clad with fiber-glass. The pod which attaches to the outside of an LC-130 contains three compartments each roughly 60cm diameter by 45cm long plus a cone fore and aft. Each compartment can house a variety of sensors. Input power is +28Vdc provided from the main aircraft bus and an in- line UPS. Power is filtered and divided down for supply to individual sensors. Heat is provided to sensors and sensor components via heating pads, monitored and controlled from inside the aircraft. The pod is connected to the rear troop door of a New York Air National Guard LC-130 by an arm that can be raised for take-off and lowered for deployment. The arm is attached to a door plug that is fitted into the starboard troop door frame located behind the starboard wing. Figure 1 shows the Icepod installed onto the aircraft.

  • Areal changes and motion of northern Larsen Ice Shelf, Antarctic Peninsula

    Areal changes and motion field of the northern Larsen Ice Shelf, Antarctic Peninsula, were analyzed based on Landsat TM data from 1986 to 1989 and ERS SAR data from 1991 to 1997. During this period the ice shelf north of Jason Peninsula decreased from 16200 km/sup 2/ to 10600 km/sup 2/. The main single event was observed in January 1995, when the two northernmost sections disintegrated almost completely. Velocities on the ice shelf were derived from TM and SAR data by feature tracking using cross-correlation techniques, based on repeat images of one-year intervals. The satellite derived motion compares well with field measurements which are available at a few sites.

  • Measurement of Hyperion MTF from on-orbit scenes

    The Hyperion instrument was launched on November 21, 2000 mounted on the EO-1 spacecraft into an orbit 1 minute behind Landsat 7. Hyperion has a 7.5 km swath width, a 30 metre ground resolution and more than 220 spectral bands. Part of the on-orbit characterization involves MTF measurements from several ground scenes. These scenes included edges from the Moon and glaciers as well as several bridges. The scenes were processed to determine the MTF for both the VNIR and SWIR imaging spectrometers and were compared to measurements made prior to launch.



Standards related to Ice shelf

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