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Integration and Assimilation of Meteological (ECMWF) Aerosol Estimates into Sen2Cor Atmospheric Correction

Louis, Jérôme and Pflug, Bringfried and Main-Knorn, Magdalena and Debaecker, Vincent and Müller-Wilm, Uwe and Gascon, Ferran (2018) Integration and Assimilation of Meteological (ECMWF) Aerosol Estimates into Sen2Cor Atmospheric Correction. In: 2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1864-1897. IGARSS 2018, 23.-27. Juli 2018, Valencia, Spanien.

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Official URL: https://www.igarss2018.org/Papers.asp

Abstract

Sen2Cor is a Level-2A processor designed to correct Sentinel-2 Level-1C products from the effects of the atmosphere in order to deliver a Level-2A surface reflectance product. A key-parameter for accurate atmospheric correction is the knowledge of the spatially and temporally very variable aerosol content of the atmosphere The multi-spectral instrument on board Sentinel-2 has the appropriate spectral bands to derive the aerosol optical thickness (AOT) of the atmosphere, provided the image contains reference areas of known reflectance behavior, preferably dense dark vegetation (DDV). If the granule contains no DDV pixels, a fallback solution is required. The former solution was to generate an AOT map based on the start visibility set in the configuration file. In this updated Sen2Cor version, meteorological AOT estimates are retrieved from ECMWF ftp server and pre-processed. The integration and assimilation of ECMWF aerosol estimates into Sen2Cor atmospheric correction is described and recent validation results are presented.

Item URL in elib:https://elib.dlr.de/119433/
Document Type:Conference or Workshop Item (Speech)
Title:Integration and Assimilation of Meteological (ECMWF) Aerosol Estimates into Sen2Cor Atmospheric Correction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Louis, Jérômejerome.louis (at) telespazio.comUNSPECIFIED
Pflug, BringfriedBringfried.Pflug (at) dlr.dehttps://orcid.org/0000-0002-4626-9393
Main-Knorn, Magdalenamagdalena.main-knorn (at) dlr.deUNSPECIFIED
Debaecker, Vincentvincent.debaecker (at) telespazio.comUNSPECIFIED
Müller-Wilm, UweUwe.Mueller-Wilm (at) telespazio-vega.deUNSPECIFIED
Gascon, FerranFerran.gascon (at) esa.intUNSPECIFIED
Date:July 2018
Journal or Publication Title:2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1864-1897
Status:Published
Keywords:Atmospheric correction, Sentinel-2, Sen2Cor, aerosol, meteorological, model
Event Title:IGARSS 2018
Event Location:Valencia, Spanien
Event Type:international Conference
Event Dates:23.-27. Juli 2018
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Berlin-Adlershof
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Zielske, Mandy
Deposited On:22 Mar 2018 20:17
Last Modified:31 Jul 2019 20:17

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