MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development
Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) is scheduled to launch in late 2017 and will carry the Advanced Topographic Laser Altimeter System (ATLAS), which is a photon-counting laser altimeter and represents a new approach to satellite determination of surface elevation. Given the new te...
Published in: | The Cryosphere |
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Copernicus Publications
2016
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Online Access: | https://doi.org/10.5194/tc-10-1707-2016 http://www.the-cryosphere.net/10/1707/2016/tc-10-1707-2016.pdf https://doaj.org/article/d9fecdeb72ad42c1933bd7b7e19d5c32 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d9fecdeb72ad42c1933bd7b7e19d5c32 2023-05-15T16:20:37+02:00 MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development K. M. Brunt T. A. Neumann J. M. Amundson J. L. Kavanaugh M. S. Moussavi K. M. Walsh W. B. Cook T. Markus 2016-08-01 https://doi.org/10.5194/tc-10-1707-2016 http://www.the-cryosphere.net/10/1707/2016/tc-10-1707-2016.pdf https://doaj.org/article/d9fecdeb72ad42c1933bd7b7e19d5c32 en eng Copernicus Publications 1994-0416 1994-0424 doi:10.5194/tc-10-1707-2016 http://www.the-cryosphere.net/10/1707/2016/tc-10-1707-2016.pdf https://doaj.org/article/d9fecdeb72ad42c1933bd7b7e19d5c32 undefined The Cryosphere, Vol 10, Iss 4, Pp 1707-1719 (2016) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.5194/tc-10-1707-2016 2023-01-22T19:11:29Z Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) is scheduled to launch in late 2017 and will carry the Advanced Topographic Laser Altimeter System (ATLAS), which is a photon-counting laser altimeter and represents a new approach to satellite determination of surface elevation. Given the new technology of ATLAS, an airborne instrument, the Multiple Altimeter Beam Experimental Lidar (MABEL), was developed to provide data needed for satellite-algorithm development and ICESat-2 error analysis. MABEL was deployed out of Fairbanks, Alaska, in July 2014 to provide a test dataset for algorithm development in summer conditions with water-saturated snow and ice surfaces. Here we compare MABEL lidar data to in situ observations in Southeast Alaska to assess instrument performance in summer conditions and in the presence of glacier surface melt ponds and a wet snowpack. Results indicate the following: (1) based on MABEL and in situ data comparisons, the ATLAS 90 m beam-spacing strategy will provide a valid assessment of across-track slope that is consistent with shallow slopes (< 1°) of an ice-sheet interior over 50 to 150 m length scales; (2) the dense along-track sampling strategy of photon counting systems can provide crevasse detail; and (3) MABEL 532 nm wavelength light may sample both the surface and subsurface of shallow (approximately 2 m deep) supraglacial melt ponds. The data associated with crevasses and melt ponds indicate the potential ICESat-2 will have for the study of mountain and other small glaciers. Article in Journal/Newspaper glacier glaciers Ice Sheet The Cryosphere Alaska Unknown Fairbanks Mabel ENVELOPE(-44.683,-44.683,-60.667,-60.667) The Cryosphere 10 4 1707 1719 |
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Open Polar |
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fttriple |
language |
English |
topic |
geo envir |
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geo envir K. M. Brunt T. A. Neumann J. M. Amundson J. L. Kavanaugh M. S. Moussavi K. M. Walsh W. B. Cook T. Markus MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
topic_facet |
geo envir |
description |
Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) is scheduled to launch in late 2017 and will carry the Advanced Topographic Laser Altimeter System (ATLAS), which is a photon-counting laser altimeter and represents a new approach to satellite determination of surface elevation. Given the new technology of ATLAS, an airborne instrument, the Multiple Altimeter Beam Experimental Lidar (MABEL), was developed to provide data needed for satellite-algorithm development and ICESat-2 error analysis. MABEL was deployed out of Fairbanks, Alaska, in July 2014 to provide a test dataset for algorithm development in summer conditions with water-saturated snow and ice surfaces. Here we compare MABEL lidar data to in situ observations in Southeast Alaska to assess instrument performance in summer conditions and in the presence of glacier surface melt ponds and a wet snowpack. Results indicate the following: (1) based on MABEL and in situ data comparisons, the ATLAS 90 m beam-spacing strategy will provide a valid assessment of across-track slope that is consistent with shallow slopes (< 1°) of an ice-sheet interior over 50 to 150 m length scales; (2) the dense along-track sampling strategy of photon counting systems can provide crevasse detail; and (3) MABEL 532 nm wavelength light may sample both the surface and subsurface of shallow (approximately 2 m deep) supraglacial melt ponds. The data associated with crevasses and melt ponds indicate the potential ICESat-2 will have for the study of mountain and other small glaciers. |
format |
Article in Journal/Newspaper |
author |
K. M. Brunt T. A. Neumann J. M. Amundson J. L. Kavanaugh M. S. Moussavi K. M. Walsh W. B. Cook T. Markus |
author_facet |
K. M. Brunt T. A. Neumann J. M. Amundson J. L. Kavanaugh M. S. Moussavi K. M. Walsh W. B. Cook T. Markus |
author_sort |
K. M. Brunt |
title |
MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
title_short |
MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
title_full |
MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
title_fullStr |
MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
title_full_unstemmed |
MABEL photon-counting laser altimetry data in Alaska for ICESat-2 simulations and development |
title_sort |
mabel photon-counting laser altimetry data in alaska for icesat-2 simulations and development |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-1707-2016 http://www.the-cryosphere.net/10/1707/2016/tc-10-1707-2016.pdf https://doaj.org/article/d9fecdeb72ad42c1933bd7b7e19d5c32 |
long_lat |
ENVELOPE(-44.683,-44.683,-60.667,-60.667) |
geographic |
Fairbanks Mabel |
geographic_facet |
Fairbanks Mabel |
genre |
glacier glaciers Ice Sheet The Cryosphere Alaska |
genre_facet |
glacier glaciers Ice Sheet The Cryosphere Alaska |
op_source |
The Cryosphere, Vol 10, Iss 4, Pp 1707-1719 (2016) |
op_relation |
1994-0416 1994-0424 doi:10.5194/tc-10-1707-2016 http://www.the-cryosphere.net/10/1707/2016/tc-10-1707-2016.pdf https://doaj.org/article/d9fecdeb72ad42c1933bd7b7e19d5c32 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-10-1707-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
4 |
container_start_page |
1707 |
op_container_end_page |
1719 |
_version_ |
1766008545245921280 |