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Retrieval of PAR-estimates using remote sensing data and radiation transfer models

Fistric, Sascha and Gesell, Gerhard and Günther, Kurt P. (2003) Retrieval of PAR-estimates using remote sensing data and radiation transfer models. In: Proceedings of SPIE, 4882, pp. 13-20. 9th International Symposium on Remote Sensing, September 2002, Heraklion, Crete, Greece.

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A new method is proposed for retrieving the photosynthetically active radiation (PAR) using remote sensing data (AVHRR) and a radiation transfer model (libRadtran). The approach applicable for clear and cloudy sky conditions takes into account atmospheric parameters affecting the radiation transfer through the atmosphere, namely, extinction by aerosols and clouds. Due to the high temporal variability of cloud distribution and cloud properties, a geostationary satellite as e.g. the future Meteosat Second Generation (MSG) with SEVIRI on board is proposed to derive inter-daily variation of cloud parameters. The upcoming SEVIRI sensor will deliver spectral information of clouds and atmosphere every 15 minutes. The spectral information content of SEVIRI is simulated by the existing polar orbiting sensor Advanced Very High Resolution Radiometer (AVHRR) on board of the NOAA satellites. Our first results are validated with ground truth data from the European Light Dosimeter Network (ELDONET). Up to 8 stations distributed over Europe are available for validation purposes. It is shown that for heterogeneous atmospheric conditions a good correlation exist between measured and estimated PAR values. Processing more AVHRR data over a longer time period and fine-adjustment of the algorithms combined with extended validation will consolidate our findings in the future.

Item URL in elib:https://elib.dlr.de/44349/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Retrieval of PAR-estimates using remote sensing data and radiation transfer models
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:April 2003
Journal or Publication Title:Proceedings of SPIE
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 13-20
Schaefer, Klaus P.UNSPECIFIED
Lado-Bordowsky, OlgaUNSPECIFIED
Comeron, AdolfoUNSPECIFIED
Picard, Richard H.UNSPECIFIED
Series Name:Remote Sensing of Clouds and the Atmosphere VII
Keywords:PAR, radiative transfer, LibRadtran, MODIS, MSG
Event Title:9th International Symposium on Remote Sensing
Event Location:Heraklion, Crete, Greece
Event Type:international Conference
Event Dates:September 2002
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Climate and Atmospheric Products
Deposited By: Günther, Dr.rer.nat. Kurt
Deposited On:09 Aug 2006
Last Modified:27 Apr 2009 13:00

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