Penetration depth of interferometric synthetic-aperture radar signals in snow and ice
Digital elevation models of glaciated terrain produced by the NASA/Jet Propulsion Laboratory (JPL) airborne interferometric synthetic-aperture radar (InSAR) instrument in Greenland and Alaska at the C- (5.6 cm wave-length) and L-band (24-cm) frequencies were compared with surface elevation measured...
Published in: | Geophysical Research Letters |
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Language: | English |
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ftcdlib:qt5tx947cf 2023-05-15T16:20:36+02:00 Penetration depth of interferometric synthetic-aperture radar signals in snow and ice Rignot, E Echelmeyer, K Krabill, W 3501 - 3504 2001-09-15 application/pdf http://www.escholarship.org/uc/item/5tx947cf english eng eScholarship, University of California qt5tx947cf http://www.escholarship.org/uc/item/5tx947cf Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ CC-BY Rignot, E; Echelmeyer, K; & Krabill, W. (2001). Penetration depth of interferometric synthetic-aperture radar signals in snow and ice. Geophysical Research Letters, 28(18), 3501 - 3504. doi:10.1029/2000GL012484. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/5tx947cf article 2001 ftcdlib https://doi.org/10.1029/2000GL012484 2017-10-13T22:51:01Z Digital elevation models of glaciated terrain produced by the NASA/Jet Propulsion Laboratory (JPL) airborne interferometric synthetic-aperture radar (InSAR) instrument in Greenland and Alaska at the C- (5.6 cm wave-length) and L-band (24-cm) frequencies were compared with surface elevation measured from airborne laser altimetry to estimate the phase center of the interferometric depth, or penetration depth, δp. On cold polar firn at Greenland summit, δp = 9±2m at C- and 14±4m at L-band. On the exposed ice surface of Jakobshavn Isbrae, west Greenland, δp = 1±2 m at C- and 3±3 m at L-band except on smooth, marginal ice where δp = 15±5 m. On colder marginal ice of northeast Greenland, δp reaches 60 to 120 m at L-band. On the temperate ice of Brady Glacier, Alaska, δp is 4±2 m at C- and 12±6 m at L-band, with little dependence on snow/ice conditions. The implications of the results on the scientific use of InSAR data over snow/ice terrain is discussed. Article in Journal/Newspaper glacier glacier Greenland Jakobshavn Alaska University of California: eScholarship Greenland Geophysical Research Letters 28 18 3501 3504 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
description |
Digital elevation models of glaciated terrain produced by the NASA/Jet Propulsion Laboratory (JPL) airborne interferometric synthetic-aperture radar (InSAR) instrument in Greenland and Alaska at the C- (5.6 cm wave-length) and L-band (24-cm) frequencies were compared with surface elevation measured from airborne laser altimetry to estimate the phase center of the interferometric depth, or penetration depth, δp. On cold polar firn at Greenland summit, δp = 9±2m at C- and 14±4m at L-band. On the exposed ice surface of Jakobshavn Isbrae, west Greenland, δp = 1±2 m at C- and 3±3 m at L-band except on smooth, marginal ice where δp = 15±5 m. On colder marginal ice of northeast Greenland, δp reaches 60 to 120 m at L-band. On the temperate ice of Brady Glacier, Alaska, δp is 4±2 m at C- and 12±6 m at L-band, with little dependence on snow/ice conditions. The implications of the results on the scientific use of InSAR data over snow/ice terrain is discussed. |
format |
Article in Journal/Newspaper |
author |
Rignot, E Echelmeyer, K Krabill, W |
spellingShingle |
Rignot, E Echelmeyer, K Krabill, W Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
author_facet |
Rignot, E Echelmeyer, K Krabill, W |
author_sort |
Rignot, E |
title |
Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
title_short |
Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
title_full |
Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
title_fullStr |
Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
title_full_unstemmed |
Penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
title_sort |
penetration depth of interferometric synthetic-aperture radar signals in snow and ice |
publisher |
eScholarship, University of California |
publishDate |
2001 |
url |
http://www.escholarship.org/uc/item/5tx947cf |
op_coverage |
3501 - 3504 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier glacier Greenland Jakobshavn Alaska |
genre_facet |
glacier glacier Greenland Jakobshavn Alaska |
op_source |
Rignot, E; Echelmeyer, K; & Krabill, W. (2001). Penetration depth of interferometric synthetic-aperture radar signals in snow and ice. Geophysical Research Letters, 28(18), 3501 - 3504. doi:10.1029/2000GL012484. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/5tx947cf |
op_relation |
qt5tx947cf http://www.escholarship.org/uc/item/5tx947cf |
op_rights |
Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2000GL012484 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
18 |
container_start_page |
3501 |
op_container_end_page |
3504 |
_version_ |
1766008525257965568 |