New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2
Abstract Remote sensing from Earth‐observing satellites is now providing valuable information about ocean phytoplankton distributions. This paper presents the new ocean subsurface optical properties obtained from two space‐based lidars: the Cloud‐Aerosol Lidar with Orthogonal Polarization (CALIOP) a...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Geophysical Union (AGU)
2021-10-01
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| Series: | Earth and Space Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2021EA001839 |
| _version_ | 1818985238112501760 |
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| author | Xiaomei Lu Yongxiang Hu Yuekui Yang Thomas Neumann Ali Omar Rosemary Baize Mark Vaughan Sharon Rodier Brian Getzewich Patricia Lucker Charles Trepte Chris Hostetler David Winker |
| author_facet | Xiaomei Lu Yongxiang Hu Yuekui Yang Thomas Neumann Ali Omar Rosemary Baize Mark Vaughan Sharon Rodier Brian Getzewich Patricia Lucker Charles Trepte Chris Hostetler David Winker |
| author_sort | Xiaomei Lu |
| collection | DOAJ |
| description | Abstract Remote sensing from Earth‐observing satellites is now providing valuable information about ocean phytoplankton distributions. This paper presents the new ocean subsurface optical properties obtained from two space‐based lidars: the Cloud‐Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite and the Advanced Topographic Laser Altimeter System (ATLAS) aboard the Ice, Cloud, and land Elevation Satellite‐2 satellite. Obtaining reliable estimates of subsurface biomass necessitates removing instrument artifacts peculiar to each sensor, that is, polarization crosstalk artifacts in the CALIOP signals and after pulsing effects arising from the ATLAS photodetectors. We validate the optical properties derived from the corrected lidar backscatter signals using MODerate‐resolution Imaging Spectroradiometer ocean color measurements and autonomous biogeochemical Argo float profiles. Our results support the continued use of present and future spaceborne lidars to study the global plankton system and characterize its vertical structures in the upper ocean. |
| first_indexed | 2024-12-20T18:31:43Z |
| format | Article |
| id | doaj.art-c565bf8250834271b1f9e04d66045666 |
| institution | Directory Open Access Journal |
| issn | 2333-5084 |
| language | English |
| last_indexed | 2024-12-20T18:31:43Z |
| publishDate | 2021-10-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Earth and Space Science |
| spelling | doaj.art-c565bf8250834271b1f9e04d660456662022-12-21T19:30:01ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842021-10-01810n/an/a10.1029/2021EA001839New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2Xiaomei Lu0Yongxiang Hu1Yuekui Yang2Thomas Neumann3Ali Omar4Rosemary Baize5Mark Vaughan6Sharon Rodier7Brian Getzewich8Patricia Lucker9Charles Trepte10Chris Hostetler11David Winker12Science Systems and Applications, Inc. Hampton VA USANASA Langley Research Center Hampton VA USANASA Goddard Space Flight Center Greenbelt MD USANASA Goddard Space Flight Center Greenbelt MD USANASA Langley Research Center Hampton VA USANASA Langley Research Center Hampton VA USANASA Langley Research Center Hampton VA USAScience Systems and Applications, Inc. Hampton VA USANASA Langley Research Center Hampton VA USAScience Systems and Applications, Inc. Hampton VA USANASA Langley Research Center Hampton VA USANASA Langley Research Center Hampton VA USANASA Langley Research Center Hampton VA USAAbstract Remote sensing from Earth‐observing satellites is now providing valuable information about ocean phytoplankton distributions. This paper presents the new ocean subsurface optical properties obtained from two space‐based lidars: the Cloud‐Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite and the Advanced Topographic Laser Altimeter System (ATLAS) aboard the Ice, Cloud, and land Elevation Satellite‐2 satellite. Obtaining reliable estimates of subsurface biomass necessitates removing instrument artifacts peculiar to each sensor, that is, polarization crosstalk artifacts in the CALIOP signals and after pulsing effects arising from the ATLAS photodetectors. We validate the optical properties derived from the corrected lidar backscatter signals using MODerate‐resolution Imaging Spectroradiometer ocean color measurements and autonomous biogeochemical Argo float profiles. Our results support the continued use of present and future spaceborne lidars to study the global plankton system and characterize its vertical structures in the upper ocean.https://doi.org/10.1029/2021EA001839CALIPSOICESat‐2oceanlidarparticulate backscattering coefficient |
| spellingShingle | Xiaomei Lu Yongxiang Hu Yuekui Yang Thomas Neumann Ali Omar Rosemary Baize Mark Vaughan Sharon Rodier Brian Getzewich Patricia Lucker Charles Trepte Chris Hostetler David Winker New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 Earth and Space Science CALIPSO ICESat‐2 ocean lidar particulate backscattering coefficient |
| title | New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 |
| title_full | New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 |
| title_fullStr | New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 |
| title_full_unstemmed | New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 |
| title_short | New Ocean Subsurface Optical Properties From Space Lidars: CALIOP/CALIPSO and ATLAS/ICESat‐2 |
| title_sort | new ocean subsurface optical properties from space lidars caliop calipso and atlas icesat 2 |
| topic | CALIPSO ICESat‐2 ocean lidar particulate backscattering coefficient |
| url | https://doi.org/10.1029/2021EA001839 |
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