The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping
As part of the NASA International Polar Year activities, a Ka-band cross-track interferometric synthetic aperture radar (SAR) recently demonstrated high-precision elevation swath mapping capability. This proof-of-concept instrument was achieved by interfacing two Ka-band slotted-waveguide antennas i...
Published in: | IEEE Transactions on Geoscience and Remote Sensing |
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Online Access: | https://escholarship.org/uc/item/8758m601 https://escholarship.org/content/qt8758m601/qt8758m601.pdf https://doi.org/10.1109/tgrs.2010.2057254 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt8758m601 2024-09-15T17:35:22+00:00 The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping Moller, Delwyn Hensley, Scott Sadowy, Gregory A Fisher, Charles D Michel, Thierry Zawadzki, Mark Rignot, Eric 827 - 842 2011-02-01 application/pdf https://escholarship.org/uc/item/8758m601 https://escholarship.org/content/qt8758m601/qt8758m601.pdf https://doi.org/10.1109/tgrs.2010.2057254 unknown eScholarship, University of California qt8758m601 https://escholarship.org/uc/item/8758m601 https://escholarship.org/content/qt8758m601/qt8758m601.pdf doi:10.1109/tgrs.2010.2057254 CC-BY IEEE Transactions on Geoscience and Remote Sensing, vol 49, iss 2 Ice interferometry radar Geophysics Electrical and Electronic Engineering Geomatic Engineering Geological & Geomatics Engineering article 2011 ftcdlib https://doi.org/10.1109/tgrs.2010.2057254 2024-06-28T06:28:20Z As part of the NASA International Polar Year activities, a Ka-band cross-track interferometric synthetic aperture radar (SAR) recently demonstrated high-precision elevation swath mapping capability. This proof-of-concept instrument was achieved by interfacing two Ka-band slotted-waveguide antennas in a cross-track geometry and Ka-band electronics with the Jet Propulsion Laboratory's L-band uninhabited aerial vehicle SAR. Deployed on the NASA Gulfstream III, initial engineering flights in March and April 2009 marked the first airborne demonstration of single-pass cross-track interferometry at Ka-band. Results of a preliminary interferometric assessment indicate height precisions that, for a 3 m × 3 m posting, range from 30 cm in the near range to 3 m in the far range and greater than 5 km of swath over the urban areas imaged. The engineering flights were followed by a comprehensive campaign to Greenland in May 2009 for ice-surface topography mapping assessment. Toward that end, coordinated flights with the NASA Wallops Airborne Topographic Mapper lidar were conducted in addition to establishing ground calibration sites at both the Summit Station of the National Science Foundation and the Swiss Camp of the Cooperative Institute for Research in the Environmental Sciences. Comparisons of the radar-derived elevation measurements with both in situ and lidar data are planned for a subsequent paper; however, at this stage, a single data example over rugged ice cover produced a swath up to 7 km with the desired height precision as estimated from interferometric correlation data. While a systematic calibration, including assessment and modeling of biases, due to penetration of the electromagnetic waves into the snow cover has not yet been addressed, these initial results indicate that we will exceed our system requirements. © 2006 IEEE. Article in Journal/Newspaper Airborne Topographic Mapper glacier Greenland International Polar Year University of California: eScholarship IEEE Transactions on Geoscience and Remote Sensing 49 2 827 842 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Ice interferometry radar Geophysics Electrical and Electronic Engineering Geomatic Engineering Geological & Geomatics Engineering |
spellingShingle |
Ice interferometry radar Geophysics Electrical and Electronic Engineering Geomatic Engineering Geological & Geomatics Engineering Moller, Delwyn Hensley, Scott Sadowy, Gregory A Fisher, Charles D Michel, Thierry Zawadzki, Mark Rignot, Eric The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
topic_facet |
Ice interferometry radar Geophysics Electrical and Electronic Engineering Geomatic Engineering Geological & Geomatics Engineering |
description |
As part of the NASA International Polar Year activities, a Ka-band cross-track interferometric synthetic aperture radar (SAR) recently demonstrated high-precision elevation swath mapping capability. This proof-of-concept instrument was achieved by interfacing two Ka-band slotted-waveguide antennas in a cross-track geometry and Ka-band electronics with the Jet Propulsion Laboratory's L-band uninhabited aerial vehicle SAR. Deployed on the NASA Gulfstream III, initial engineering flights in March and April 2009 marked the first airborne demonstration of single-pass cross-track interferometry at Ka-band. Results of a preliminary interferometric assessment indicate height precisions that, for a 3 m × 3 m posting, range from 30 cm in the near range to 3 m in the far range and greater than 5 km of swath over the urban areas imaged. The engineering flights were followed by a comprehensive campaign to Greenland in May 2009 for ice-surface topography mapping assessment. Toward that end, coordinated flights with the NASA Wallops Airborne Topographic Mapper lidar were conducted in addition to establishing ground calibration sites at both the Summit Station of the National Science Foundation and the Swiss Camp of the Cooperative Institute for Research in the Environmental Sciences. Comparisons of the radar-derived elevation measurements with both in situ and lidar data are planned for a subsequent paper; however, at this stage, a single data example over rugged ice cover produced a swath up to 7 km with the desired height precision as estimated from interferometric correlation data. While a systematic calibration, including assessment and modeling of biases, due to penetration of the electromagnetic waves into the snow cover has not yet been addressed, these initial results indicate that we will exceed our system requirements. © 2006 IEEE. |
format |
Article in Journal/Newspaper |
author |
Moller, Delwyn Hensley, Scott Sadowy, Gregory A Fisher, Charles D Michel, Thierry Zawadzki, Mark Rignot, Eric |
author_facet |
Moller, Delwyn Hensley, Scott Sadowy, Gregory A Fisher, Charles D Michel, Thierry Zawadzki, Mark Rignot, Eric |
author_sort |
Moller, Delwyn |
title |
The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
title_short |
The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
title_full |
The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
title_fullStr |
The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
title_full_unstemmed |
The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping |
title_sort |
glacier and land ice surface topography interferometer: an airborne proof-of-concept demonstration of high-precision ka-band single-pass elevation mapping |
publisher |
eScholarship, University of California |
publishDate |
2011 |
url |
https://escholarship.org/uc/item/8758m601 https://escholarship.org/content/qt8758m601/qt8758m601.pdf https://doi.org/10.1109/tgrs.2010.2057254 |
op_coverage |
827 - 842 |
genre |
Airborne Topographic Mapper glacier Greenland International Polar Year |
genre_facet |
Airborne Topographic Mapper glacier Greenland International Polar Year |
op_source |
IEEE Transactions on Geoscience and Remote Sensing, vol 49, iss 2 |
op_relation |
qt8758m601 https://escholarship.org/uc/item/8758m601 https://escholarship.org/content/qt8758m601/qt8758m601.pdf doi:10.1109/tgrs.2010.2057254 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.1109/tgrs.2010.2057254 |
container_title |
IEEE Transactions on Geoscience and Remote Sensing |
container_volume |
49 |
container_issue |
2 |
container_start_page |
827 |
op_container_end_page |
842 |
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1810453727402786816 |