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Operational cloud products from TROPOMI on Sentinel-5 Precursor and prospects for Sentinel-4 on MTG-S

Lutz, Ronny and Argyrouli, Athina and Romahn, Fabian and Loyola, Diego (2018) Operational cloud products from TROPOMI on Sentinel-5 Precursor and prospects for Sentinel-4 on MTG-S. EUMETSAT Meteorological Satellite Conference 2018, 17.-21. Sep. 2018, Tallinn, Estonia.

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Abstract

Accurate trace gas and aerosol retrieval for satellite missions focused on atmospheric composition requires a precise knowledge of cloud properties in the UV/VIS/NIR spectral region. Such missions dedicated to atmospheric composition and air quality monitoring include the operational GOME-2 instruments on-board MetOp-A/B, the recently launched TROPOMI instrument on Sentinel-5P and the upcoming UVN/Sentinel-4 instruments on MTG-S and the UVNS/Sentinel-5 instruments on EPS-SG. Furthermore, cloud information from UV/VIS/NIR spectrometers, such as S5P, S4, and S5, is complementary to the information retrieved using sensors operating in the thermal IR. In this work we present the operational cloud products from the Sentinel-5 Precursor mission and prospects for Sentinel-4. These operational cloud products are generated using the latest version of the OCRA (Optical Cloud Recognition Algorithm) and ROCINN (Retrieval of Cloud Information using Neural Networks) algorithms which have been successfully applied to the operational processing of GOME/ERS-2 and GOME-2 MetOp-A/B data. The ROCINN algorithm retrieves cloud height, cloud optical thickness and cloud albedo from NIR measurements in and around the oxygen A-band (~760nm) taking as input the cloud fraction computed with the OCRA algorithm based on a broad-band UV/VIS color space approach. Two approaches which treat the clouds differently are implemented to the ROCINN algorithm. The first approach called Clouds-as-Reflecting-Boundaries (CRB) assume that the cloud is a reflecting surface whereas the second and more realistic model called Clouds-as-Layers (CAL) represents the cloud as a homogeneous cluster of scattering spherical particles.

Item URL in elib:https://elib.dlr.de/120897/
Document Type:Conference or Workshop Item (Speech)
Title:Operational cloud products from TROPOMI on Sentinel-5 Precursor and prospects for Sentinel-4 on MTG-S
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lutz, RonnyRonny.Lutz (at) dlr.deUNSPECIFIED
Argyrouli, Athinaathina.argyrouli (at) dlr.deUNSPECIFIED
Romahn, FabianFabian.Romahn (at) dlr.deUNSPECIFIED
Loyola, DiegoDiego.Loyola (at) dlr.dehttps://orcid.org/0000-0002-8547-9350
Date:2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Atmospheric Composition, Clouds
Event Title:EUMETSAT Meteorological Satellite Conference 2018
Event Location:Tallinn, Estonia
Event Type:international Conference
Event Dates:17.-21. Sep. 2018
Organizer:EUMETSAT
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 Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Lutz, Dr. Ronny
Deposited On:07 Nov 2019 11:57
Last Modified:07 Nov 2019 11:57

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