DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf
The HYPERNETS project developed a new hyperspectral radiometer (HYPSTAR ® ) integrated in automated networks of water (WATERHYPERNET) and land (LANDHYPERNET) bidirectional reflectance measurements for satellite validation. In this paper, the feasibility of using LANDHYPERNET surface reflectance data...
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ftfrontimediafig:oai:figshare.com:article/26829355 2024-09-30T14:26:35+00:00 DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf Pieter De Vis Adam Howes Quinten Vanhellemont Agnieszka Bialek Harry Morris Morven Sinclair Kevin Ruddick 2024-08-26T04:13:49Z https://doi.org/10.3389/frsen.2024.1323998.s001 https://figshare.com/articles/dataset/DataSheet1_Feasibility_of_satellite_vicarious_calibration_using_HYPERNETS_surface_reflectances_from_Gobabeb_and_Princess_Elisabeth_Antartica_sites_pdf/26829355 unknown doi:10.3389/frsen.2024.1323998.s001 https://figshare.com/articles/dataset/DataSheet1_Feasibility_of_satellite_vicarious_calibration_using_HYPERNETS_surface_reflectances_from_Gobabeb_and_Princess_Elisabeth_Antartica_sites_pdf/26829355 CC BY 4.0 Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing HYPERNETS hyperspectral validation surface reflectance uncertainty fiducial reference measurements earth observation vicarious calibration Dataset 2024 ftfrontimediafig https://doi.org/10.3389/frsen.2024.1323998.s001 2024-09-01T23:38:54Z The HYPERNETS project developed a new hyperspectral radiometer (HYPSTAR ® ) integrated in automated networks of water (WATERHYPERNET) and land (LANDHYPERNET) bidirectional reflectance measurements for satellite validation. In this paper, the feasibility of using LANDHYPERNET surface reflectance data for vicarious calibration of multispectral (Sentinel-2 and Landsat 8/9) and hyperspectral (PRISMA) satellites is studied. The pipeline to process bottom of atmosphere (BOA) surface reflectance HYPERNETS data to band-integrated top of atmosphere (TOA) reflectances and compare them to satellite observations is detailed. Two LANDHYPERNET sites are considered in this study: the Gobabeb HYPERNETS site in Namibia (GHNA) and Princess Elizabeth Base in Antarctica (PEAN). 36 near-simultaneous match-ups within 1 h are found where HYPERNETS and satellite data pass all quality checks. For the Gobabeb HYPERNETS site, agreement to within 5% is found with Sentinel-2 and Landsat 8/9. The differences with PRISMA are smaller than 10%. For the HYPERNETS Antarctica site, there are also a number of match-ups with good agreement to within 5% for Landsat 8/9. The majority show notable disagreement, i.e., HYPERNETS being over 10% different compared to satellite. This is due to small-scale irregularities in the wind-blown snow surface, and their shadows cast by the low Sun. A study comparing the HYPERNETS measurements against a bidirectional reflectance distribution function (BRDF) model is recommended. Overall, we confirm data from radiometrically stable HYPERNETS sites with sufficient spatial and angular homogeneity can successfully be used for vicarious calibration purposes. Dataset Antarc* Antarctica antartic* Frontiers: Figshare Boa ENVELOPE(15.532,15.532,66.822,66.822) Prisma ENVELOPE(-58.767,-58.767,-69.200,-69.200) |
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Open Polar |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing HYPERNETS hyperspectral validation surface reflectance uncertainty fiducial reference measurements earth observation vicarious calibration |
spellingShingle |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing HYPERNETS hyperspectral validation surface reflectance uncertainty fiducial reference measurements earth observation vicarious calibration Pieter De Vis Adam Howes Quinten Vanhellemont Agnieszka Bialek Harry Morris Morven Sinclair Kevin Ruddick DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
topic_facet |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing HYPERNETS hyperspectral validation surface reflectance uncertainty fiducial reference measurements earth observation vicarious calibration |
description |
The HYPERNETS project developed a new hyperspectral radiometer (HYPSTAR ® ) integrated in automated networks of water (WATERHYPERNET) and land (LANDHYPERNET) bidirectional reflectance measurements for satellite validation. In this paper, the feasibility of using LANDHYPERNET surface reflectance data for vicarious calibration of multispectral (Sentinel-2 and Landsat 8/9) and hyperspectral (PRISMA) satellites is studied. The pipeline to process bottom of atmosphere (BOA) surface reflectance HYPERNETS data to band-integrated top of atmosphere (TOA) reflectances and compare them to satellite observations is detailed. Two LANDHYPERNET sites are considered in this study: the Gobabeb HYPERNETS site in Namibia (GHNA) and Princess Elizabeth Base in Antarctica (PEAN). 36 near-simultaneous match-ups within 1 h are found where HYPERNETS and satellite data pass all quality checks. For the Gobabeb HYPERNETS site, agreement to within 5% is found with Sentinel-2 and Landsat 8/9. The differences with PRISMA are smaller than 10%. For the HYPERNETS Antarctica site, there are also a number of match-ups with good agreement to within 5% for Landsat 8/9. The majority show notable disagreement, i.e., HYPERNETS being over 10% different compared to satellite. This is due to small-scale irregularities in the wind-blown snow surface, and their shadows cast by the low Sun. A study comparing the HYPERNETS measurements against a bidirectional reflectance distribution function (BRDF) model is recommended. Overall, we confirm data from radiometrically stable HYPERNETS sites with sufficient spatial and angular homogeneity can successfully be used for vicarious calibration purposes. |
format |
Dataset |
author |
Pieter De Vis Adam Howes Quinten Vanhellemont Agnieszka Bialek Harry Morris Morven Sinclair Kevin Ruddick |
author_facet |
Pieter De Vis Adam Howes Quinten Vanhellemont Agnieszka Bialek Harry Morris Morven Sinclair Kevin Ruddick |
author_sort |
Pieter De Vis |
title |
DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
title_short |
DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
title_full |
DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
title_fullStr |
DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
title_full_unstemmed |
DataSheet1_Feasibility of satellite vicarious calibration using HYPERNETS surface reflectances from Gobabeb and Princess Elisabeth Antartica sites.pdf |
title_sort |
datasheet1_feasibility of satellite vicarious calibration using hypernets surface reflectances from gobabeb and princess elisabeth antartica sites.pdf |
publishDate |
2024 |
url |
https://doi.org/10.3389/frsen.2024.1323998.s001 https://figshare.com/articles/dataset/DataSheet1_Feasibility_of_satellite_vicarious_calibration_using_HYPERNETS_surface_reflectances_from_Gobabeb_and_Princess_Elisabeth_Antartica_sites_pdf/26829355 |
long_lat |
ENVELOPE(15.532,15.532,66.822,66.822) ENVELOPE(-58.767,-58.767,-69.200,-69.200) |
geographic |
Boa Prisma |
geographic_facet |
Boa Prisma |
genre |
Antarc* Antarctica antartic* |
genre_facet |
Antarc* Antarctica antartic* |
op_relation |
doi:10.3389/frsen.2024.1323998.s001 https://figshare.com/articles/dataset/DataSheet1_Feasibility_of_satellite_vicarious_calibration_using_HYPERNETS_surface_reflectances_from_Gobabeb_and_Princess_Elisabeth_Antartica_sites_pdf/26829355 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/frsen.2024.1323998.s001 |
_version_ |
1811646861283426304 |