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Sources of variance of downwelling irradiance in water

Gege, Peter and Pinnel, Nicole (2011) Sources of variance of downwelling irradiance in water. Applied Optics, 50 (15), pp. 2192-2203. ISSN 1559-128X.

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Official URL: http://www.opticsinfobase.org/ao/viewmedia.cfm?uri=ao-50-15-2192&seq=0


The downwelling irradiance in water is highly variable due to focusing and defocusing of the sun and sky light by the wave-modulated water surface. While the time scales and intensity variations caused by wave focusing are well-studied, little is known about the induced spectral variability. Also the impact of variations of sensor depth and inclination during the measurement on spectral irradiance hasn't been studied much. We have developed a model which relates the variance of spectral irradiance to the relevant parameters of the environmental and experimental conditions. A data set from three German lakes was used to validate the model and to study the importance of each effect as a function of depth for the range 0 to 5 m.

Document Type:Article
Title:Sources of variance of downwelling irradiance in water
AuthorsInstitution or Email of Authors
Gege, Peterpeter.gege@dlr.de
Pinnel, Nicolenicole.pinnel@dlr.de
Date:20 May 2011
Journal or Publication Title:Applied Optics
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 2192-2203
Keywords:Water, downwelling irradiance, variability, wave focusing
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 Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Remote Sensing Technology Institute > Experimental Methods
Deposited By: Dr.rer.nat. Peter Gege
Deposited On:14 Jun 2011 07:55
Last Modified:25 Nov 2015 05:03

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