EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND
Accumulation of snow and ice over time result in ice sheet layers. These can be remotely sensed where there is a contrast in electromagnetic properties, which reflect variations of the ice density, acidity and fabric orientation. Internal ice layers are assumed to be isochronous, deep beneath the ic...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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Online Access: | https://doi.org/10.5194/isprs-archives-XLI-B7-585-2016 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B7/585/2016/ |
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ftcopernicus:oai:publications.copernicus.org:isprs-archives53115 2023-05-15T16:28:14+02:00 EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND Xiong, S. Muller, J.-P. 2018-01-15 application/pdf https://doi.org/10.5194/isprs-archives-XLI-B7-585-2016 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B7/585/2016/ eng eng doi:10.5194/isprs-archives-XLI-B7-585-2016 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B7/585/2016/ eISSN: 2194-9034 Text 2018 ftcopernicus https://doi.org/10.5194/isprs-archives-XLI-B7-585-2016 2019-12-24T09:52:15Z Accumulation of snow and ice over time result in ice sheet layers. These can be remotely sensed where there is a contrast in electromagnetic properties, which reflect variations of the ice density, acidity and fabric orientation. Internal ice layers are assumed to be isochronous, deep beneath the ice surface, and parallel to the direction of ice flow. The distribution of internal layers is related to ice sheet dynamics, such as the basal melt rate, basal elevation variation and changes in ice flow mode, which are important parameters to model the ice sheet. Radar echo sounder is an effective instrument used to study the sedimentology of the Earth and planets. Ice Penetrating Radar (IPR) is specific kind of radar echo sounder, which extends studies of ice sheets from surface to subsurface to deep internal ice sheets depending on the frequency utilised. In this study, we examine a study site where folded ice occurs in the internal ice sheet south of the North Greenland Eemian ice drilling (NEEM) station, where two intersected radar echograms acquired by the Multi-channel Coherent Radar Depth Sounder (MCoRDS) employed in the NASA’s Operation IceBridge (OIB) mission imaged this folded ice. We propose a slice processing flow based on a Radon Transform to trace and extract these two sets of curved ice sheet layers, which can then be viewed in 3-D, demonstrating the 3-D structure of the ice folds. Text Greenland ice core Ice Sheet North Greenland Copernicus Publications: E-Journals Greenland The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B7 585 591 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Accumulation of snow and ice over time result in ice sheet layers. These can be remotely sensed where there is a contrast in electromagnetic properties, which reflect variations of the ice density, acidity and fabric orientation. Internal ice layers are assumed to be isochronous, deep beneath the ice surface, and parallel to the direction of ice flow. The distribution of internal layers is related to ice sheet dynamics, such as the basal melt rate, basal elevation variation and changes in ice flow mode, which are important parameters to model the ice sheet. Radar echo sounder is an effective instrument used to study the sedimentology of the Earth and planets. Ice Penetrating Radar (IPR) is specific kind of radar echo sounder, which extends studies of ice sheets from surface to subsurface to deep internal ice sheets depending on the frequency utilised. In this study, we examine a study site where folded ice occurs in the internal ice sheet south of the North Greenland Eemian ice drilling (NEEM) station, where two intersected radar echograms acquired by the Multi-channel Coherent Radar Depth Sounder (MCoRDS) employed in the NASA’s Operation IceBridge (OIB) mission imaged this folded ice. We propose a slice processing flow based on a Radon Transform to trace and extract these two sets of curved ice sheet layers, which can then be viewed in 3-D, demonstrating the 3-D structure of the ice folds. |
format |
Text |
author |
Xiong, S. Muller, J.-P. |
spellingShingle |
Xiong, S. Muller, J.-P. EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
author_facet |
Xiong, S. Muller, J.-P. |
author_sort |
Xiong, S. |
title |
EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
title_short |
EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
title_full |
EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
title_fullStr |
EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
title_full_unstemmed |
EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND |
title_sort |
extraction of ice sheet layers from two intersected radar echograms near neem ice core in greenland |
publishDate |
2018 |
url |
https://doi.org/10.5194/isprs-archives-XLI-B7-585-2016 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B7/585/2016/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core Ice Sheet North Greenland |
genre_facet |
Greenland ice core Ice Sheet North Greenland |
op_source |
eISSN: 2194-9034 |
op_relation |
doi:10.5194/isprs-archives-XLI-B7-585-2016 https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B7/585/2016/ |
op_doi |
https://doi.org/10.5194/isprs-archives-XLI-B7-585-2016 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLI-B7 |
container_start_page |
585 |
op_container_end_page |
591 |
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1766017864148451328 |