Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images

Over the past decades, remote sensing satellite sensors have significantly increased their performance and, at the same time, differed in their characteristics. Therefore, making the data repeatable over time and uniform with respect to different platforms has become one of the most challenging issu...

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Main Authors: Federico Santini, Angelo Palombo
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/14/16/3903
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author Federico Santini
Angelo Palombo
author_facet Federico Santini
Angelo Palombo
author_sort Federico Santini
collection DOAJ
description Over the past decades, remote sensing satellite sensors have significantly increased their performance and, at the same time, differed in their characteristics. Therefore, making the data repeatable over time and uniform with respect to different platforms has become one of the most challenging issues to obtain a representation of the intrinsic characteristics of the observed target. In this context, atmospheric correction has the role of cleaning the signal from unwanted contributions and moving from the sensor radiance to a quantity more closely related to the intrinsic properties of the target, such as ground reflectance. To this end, atmospheric correction procedures must consider a number of factors, closely related to the specific scene acquired and to the characteristics of the sensor. In mountainous environments, atmospheric correction must include a topographic correction level to compensate for the topographic effects that heavily affect the remote signal. In this paper, we want to estimate the impact of topographic correction on remote sensing images based on a statistical analysis, using data acquired under different illumination conditions with different sensors. We also want to show the benefits of introducing this level of correction in second level products such as PRISMA L2C reflectance, which currently do not implement it.
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spelling doaj.art-c5700dbc985e486ab700012ae6e91d042023-12-03T14:23:47ZengMDPI AGRemote Sensing2072-42922022-08-011416390310.3390/rs14163903Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 ImagesFederico Santini0Angelo Palombo1Institute of Methodologies for Environmental Analysis, Italian National Research Council, 85050 Potenza, ItalyInstitute of Methodologies for Environmental Analysis, Italian National Research Council, 85050 Potenza, ItalyOver the past decades, remote sensing satellite sensors have significantly increased their performance and, at the same time, differed in their characteristics. Therefore, making the data repeatable over time and uniform with respect to different platforms has become one of the most challenging issues to obtain a representation of the intrinsic characteristics of the observed target. In this context, atmospheric correction has the role of cleaning the signal from unwanted contributions and moving from the sensor radiance to a quantity more closely related to the intrinsic properties of the target, such as ground reflectance. To this end, atmospheric correction procedures must consider a number of factors, closely related to the specific scene acquired and to the characteristics of the sensor. In mountainous environments, atmospheric correction must include a topographic correction level to compensate for the topographic effects that heavily affect the remote signal. In this paper, we want to estimate the impact of topographic correction on remote sensing images based on a statistical analysis, using data acquired under different illumination conditions with different sensors. We also want to show the benefits of introducing this level of correction in second level products such as PRISMA L2C reflectance, which currently do not implement it.https://www.mdpi.com/2072-4292/14/16/3903atmospheric correctionradiative transferphysical modeltopographic correctionPRISMAL2C
spellingShingle Federico Santini
Angelo Palombo
Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
Remote Sensing
atmospheric correction
radiative transfer
physical model
topographic correction
PRISMA
L2C
title Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
title_full Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
title_fullStr Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
title_full_unstemmed Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
title_short Impact of Topographic Correction on PRISMA Sentinel 2 and Landsat 8 Images
title_sort impact of topographic correction on prisma sentinel 2 and landsat 8 images
topic atmospheric correction
radiative transfer
physical model
topographic correction
PRISMA
L2C
url https://www.mdpi.com/2072-4292/14/16/3903
work_keys_str_mv AT federicosantini impactoftopographiccorrectiononprismasentinel2andlandsat8images
AT angelopalombo impactoftopographiccorrectiononprismasentinel2andlandsat8images