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Application of Simple All-sky Imagers for the Estimation of Aerosol Optical Depth

Kazantzidis, A. and Tzoumanikas, Panagiotis and Nikitidou, Efterpi and Salamalikis, Vasilios and Wilbert, Stefan and Prahl, Christoph (2017) Application of Simple All-sky Imagers for the Estimation of Aerosol Optical Depth. In: AIP Conference Proceedings, 1850, 140012-01-140012-07. Elsevier. 22nd SolarPACES Conference, 11.-14. Okt. 2016, Abu Dhabi, UAE. doi: 10.1063/1.4984520. ISBN 978-0-7354-1522-5. ISSN 0094-243X.

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Official URL: http://aip.scitation.org/toc/apc/1850/1?expanded=1850


Aerosol optical depth is a key atmospheric constituent for direct normal irradiance calculations at concentrating solar power plants. However, aerosol optical depth is typically not measured at the solar plants for financial reasons. With the recent introduction of all-sky imagers for the nowcasting of direct normal irradiance at the plants a new instrument is available which can be used for the determination of aerosol optical depth at different wavelengths. In this study, we are based on Red, Green and Blue intensities/radiances and calculations of the saturated area around the Sun, both derived from all-sky images taken with a low-cost surveillance camera at the Plataforma Solar de Almeria, Spain. The aerosol optical depth at 440, 500 and 675nm is calculated. The results are compared with collocated aerosol optical measurements and the mean/median difference and standard deviation are less than 0.01 and 0.03 respectively at all wavelengths.

Item URL in elib:https://elib.dlr.de/108967/
Document Type:Conference or Workshop Item (Speech)
Title:Application of Simple All-sky Imagers for the Estimation of Aerosol Optical Depth
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kazantzidis, A.univ. of patras, patras, grUNSPECIFIED
Tzoumanikas, Panagiotislab. of atmosph. physics, uni patras, greeceUNSPECIFIED
Salamalikis, Vasilioslab. of atmosph. physics, uni patras, greeceUNSPECIFIED
Wilbert, StefanStefan.Wilbert (at) dlr.dehttps://orcid.org/0000-0003-3573-3004
Prahl, ChristophChristoph.Prahl (at) dlr.deUNSPECIFIED
Date:July 2017
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1063/1.4984520
Page Range:140012-01-140012-07
Keywords:All-sky imager, Aerosol. optical depth
Event Title:22nd SolarPACES Conference
Event Location:Abu Dhabi, UAE
Event Type:international Conference
Event Dates:11.-14. Okt. 2016
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Impact of Desert Environment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualifizierung
Deposited By: Kruschinski, Anja
Deposited On:05 Dec 2016 14:40
Last Modified:31 Jul 2019 20:06

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