Unusual Radar Echoes from the Greenland Ice Sheet
Airborne radar images of part of the Greenland ice sheet reveal icy terrain whose radar properties are unique among radar-studied terrestrial surfaces but resemble those of Jupiter's icy Galilean satellites. The 5.6- and 24-centimeter-wavelength echoes from the Greenland percolation zone, like...
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1993
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ftcdlib:oai:escholarship.org:ark:/13030/qt01d8w3nf 2023-09-05T13:19:41+02:00 Unusual Radar Echoes from the Greenland Ice Sheet Rignot, EJ Ostro, SJ van Zyl, JJ Jezek, KC 1710 - 1713 1993-09-24 application/pdf https://escholarship.org/uc/item/01d8w3nf unknown eScholarship, University of California qt01d8w3nf https://escholarship.org/uc/item/01d8w3nf CC-BY Science, vol 261, iss 5129 General Science & Technology article 1993 ftcdlib 2023-08-21T18:07:11Z Airborne radar images of part of the Greenland ice sheet reveal icy terrain whose radar properties are unique among radar-studied terrestrial surfaces but resemble those of Jupiter's icy Galilean satellites. The 5.6- and 24-centimeter-wavelength echoes from the Greenland percolation zone, like the 3.5- and 13-centimeter-wavelength echoes from the icy satellites, are extremely intense and have anomalous circular and linear polarization ratios. However, the detailed subsurface configurations of the Galilean satellite regoliths, where heterogeneities are the product of prolonged meteoroid bombardment, are unlikely to resemble that within the Greenland percolation zone, where heterogeneities are the product of seasonal melting and refreezing. Article in Journal/Newspaper Greenland Ice Sheet University of California: eScholarship Greenland |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
General Science & Technology |
spellingShingle |
General Science & Technology Rignot, EJ Ostro, SJ van Zyl, JJ Jezek, KC Unusual Radar Echoes from the Greenland Ice Sheet |
topic_facet |
General Science & Technology |
description |
Airborne radar images of part of the Greenland ice sheet reveal icy terrain whose radar properties are unique among radar-studied terrestrial surfaces but resemble those of Jupiter's icy Galilean satellites. The 5.6- and 24-centimeter-wavelength echoes from the Greenland percolation zone, like the 3.5- and 13-centimeter-wavelength echoes from the icy satellites, are extremely intense and have anomalous circular and linear polarization ratios. However, the detailed subsurface configurations of the Galilean satellite regoliths, where heterogeneities are the product of prolonged meteoroid bombardment, are unlikely to resemble that within the Greenland percolation zone, where heterogeneities are the product of seasonal melting and refreezing. |
format |
Article in Journal/Newspaper |
author |
Rignot, EJ Ostro, SJ van Zyl, JJ Jezek, KC |
author_facet |
Rignot, EJ Ostro, SJ van Zyl, JJ Jezek, KC |
author_sort |
Rignot, EJ |
title |
Unusual Radar Echoes from the Greenland Ice Sheet |
title_short |
Unusual Radar Echoes from the Greenland Ice Sheet |
title_full |
Unusual Radar Echoes from the Greenland Ice Sheet |
title_fullStr |
Unusual Radar Echoes from the Greenland Ice Sheet |
title_full_unstemmed |
Unusual Radar Echoes from the Greenland Ice Sheet |
title_sort |
unusual radar echoes from the greenland ice sheet |
publisher |
eScholarship, University of California |
publishDate |
1993 |
url |
https://escholarship.org/uc/item/01d8w3nf |
op_coverage |
1710 - 1713 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Science, vol 261, iss 5129 |
op_relation |
qt01d8w3nf https://escholarship.org/uc/item/01d8w3nf |
op_rights |
CC-BY |
_version_ |
1776200500290519040 |