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Variability class dependent validation of recent improvements in the CAMS Radiation Service

Schroedter-Homscheidt, Marion and Azam, Faiza and Betcke, Jethro and Deneke, Hartwig and Lefèvre, Mireille and Saint-Drenan, Yves-Marie and Saboret, Laurent and Wey, Etienne (2021) Variability class dependent validation of recent improvements in the CAMS Radiation Service. EUMETSAT User Conference, 20-24 September 2021, online.

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The Copernicus Atmosphere Monitoring Service (CAMS) provides a surface solar irradiance (SSI) service which is currently derived from Meteosat Second Generation (MSG). The service combines satellite data products with numerical model output from CAMS on aerosols, water vapour and ozone in order to provide both clear-sky radiation and all-sky radiation time series. Both clear-sky and all-sky data products are available from 2004 until yesterday. A regular quality control of input parameters, quarterly benchmarking against ground measurements and automatic consistency checks ensure the service quality. The recent development focuses on the application of the APOLLO Next Generation (APOLLO_NG) cloud retrieval for the calculation of MSG SEVIRI based irradiances and - in preparation for MTG - for HIMAWARI-8 AHI and GOES-16 ABI instruments. A parameterization for the circumsolar radiation as seen by the pyrheliometer-based ground observations is applied and improves direct irradiances significantly. The validation is carried out base on different variability classes being defined in collaboration with experts from the solar energy sector where ground observations of direct normal irradiation are used to classify atmospheric situations into eight variability classes (Schroedter-Homscheidt et al., 2018). Such cloud situations may be better described with the help of spatially higher resolved visible channels in future. The relationship of observed spatial variability of HIMAWARI-8 visible channels to the variability classes will be presented.

Item URL in elib:https://elib.dlr.de/146868/
Document Type:Conference or Workshop Item (Speech)
Title:Variability class dependent validation of recent improvements in the CAMS Radiation Service
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schroedter-Homscheidt, Marionmarion.schroedter-homscheidt (at) dlr.dehttps://orcid.org/0000-0002-1854-903X
Azam, FaizaFaiza.Azam (at) dlr.deUNSPECIFIED
Betcke, JethroJethro.Betcke (at) dlr.deUNSPECIFIED
Deneke, HartwigLeibniz Institute for Tropospheric Research, Leipzig, GermanyUNSPECIFIED
Lefèvre, MireilleMines ParisTechUNSPECIFIED
Saint-Drenan, Yves-Marieyves-marie.saint-drenan (at) mines-paristech.frUNSPECIFIED
Saboret, LaurentTransvalorUNSPECIFIED
Wey, EtienneTransvalorUNSPECIFIED
Date:20 September 2021
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Copernicus Atmosphere Monitoring Service, CAMS, irradiance, Meteosat Second Generation, aerosol, cloud, variability, APOLLO Next Generation, APOLLO_NG, variability classes
Event Title:EUMETSAT User Conference
Event Location:online
Event Type:international Conference
Event Dates:20-24 September 2021
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Energy System Transformation
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Systems Analysis and Technology Assessment
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Energy Systems Analysis, OL
Deposited By: Schroedter-Homscheidt, Marion
Deposited On:07 Dec 2021 17:14
Last Modified:07 Dec 2021 17:14

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