Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter
Abstract Corner cube retro‐reflectors (CCRs), passive optical components, are used to independently evaluate the geolocation accuracy and effective laser footprint diameter of NASA's laser altimetry mission, ICESat‐2, at two specific study sites: White Sands Missile Range in New Mexico and alon...
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American Geophysical Union (AGU)
2021
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ftdoajarticles:oai:doaj.org/article:620915e7a24d4d68ac4e56a153f1c98d 2023-05-15T13:50:47+02:00 Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter Lori Magruder Kelly Brunt Thomas Neumann Bradley Klotz Michael Alonzo 2021-10-01T00:00:00Z https://doi.org/10.1029/2020EA001414 https://doaj.org/article/620915e7a24d4d68ac4e56a153f1c98d EN eng American Geophysical Union (AGU) https://doi.org/10.1029/2020EA001414 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2020EA001414 https://doaj.org/article/620915e7a24d4d68ac4e56a153f1c98d Earth and Space Science, Vol 8, Iss 10, Pp n/a-n/a (2021) Astronomy QB1-991 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.1029/2020EA001414 2022-12-31T09:08:01Z Abstract Corner cube retro‐reflectors (CCRs), passive optical components, are used to independently evaluate the geolocation accuracy and effective laser footprint diameter of NASA's laser altimetry mission, ICESat‐2, at two specific study sites: White Sands Missile Range in New Mexico and along a segment of the 88°S line of latitude in Antarctica. The CCR methodology provides ICESat‐2 the ability to monitor these altimeter performance metrics throughout the mission lifetime as an indicator of the health of the instrument and the quality of the observations for science applications. The results using this technique reveal a mean geolocation accuracy of the ICESat‐2 measurements of 3.5 m ± 2.1 m, meeting the mission requirement of 6.5 m. For those instances where multiple CCRs are illuminated, the mean effective laser footprint diameter is 10.9 m ± 1.2 m, with the variability assumed to be due to the influence of atmospheric conditions, but warrants further investigation. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Earth and Space Science 8 10 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Astronomy QB1-991 Geology QE1-996.5 |
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Astronomy QB1-991 Geology QE1-996.5 Lori Magruder Kelly Brunt Thomas Neumann Bradley Klotz Michael Alonzo Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
topic_facet |
Astronomy QB1-991 Geology QE1-996.5 |
description |
Abstract Corner cube retro‐reflectors (CCRs), passive optical components, are used to independently evaluate the geolocation accuracy and effective laser footprint diameter of NASA's laser altimetry mission, ICESat‐2, at two specific study sites: White Sands Missile Range in New Mexico and along a segment of the 88°S line of latitude in Antarctica. The CCR methodology provides ICESat‐2 the ability to monitor these altimeter performance metrics throughout the mission lifetime as an indicator of the health of the instrument and the quality of the observations for science applications. The results using this technique reveal a mean geolocation accuracy of the ICESat‐2 measurements of 3.5 m ± 2.1 m, meeting the mission requirement of 6.5 m. For those instances where multiple CCRs are illuminated, the mean effective laser footprint diameter is 10.9 m ± 1.2 m, with the variability assumed to be due to the influence of atmospheric conditions, but warrants further investigation. |
format |
Article in Journal/Newspaper |
author |
Lori Magruder Kelly Brunt Thomas Neumann Bradley Klotz Michael Alonzo |
author_facet |
Lori Magruder Kelly Brunt Thomas Neumann Bradley Klotz Michael Alonzo |
author_sort |
Lori Magruder |
title |
Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
title_short |
Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
title_full |
Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
title_fullStr |
Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
title_full_unstemmed |
Passive Ground‐Based Optical Techniques for Monitoring the On‐Orbit ICESat‐2 Altimeter Geolocation and Footprint Diameter |
title_sort |
passive ground‐based optical techniques for monitoring the on‐orbit icesat‐2 altimeter geolocation and footprint diameter |
publisher |
American Geophysical Union (AGU) |
publishDate |
2021 |
url |
https://doi.org/10.1029/2020EA001414 https://doaj.org/article/620915e7a24d4d68ac4e56a153f1c98d |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Earth and Space Science, Vol 8, Iss 10, Pp n/a-n/a (2021) |
op_relation |
https://doi.org/10.1029/2020EA001414 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2020EA001414 https://doaj.org/article/620915e7a24d4d68ac4e56a153f1c98d |
op_doi |
https://doi.org/10.1029/2020EA001414 |
container_title |
Earth and Space Science |
container_volume |
8 |
container_issue |
10 |
_version_ |
1766254010727137280 |