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A model of underwater spectral irradiance accounting for wave focusing

Gege, Peter (2013) A model of underwater spectral irradiance accounting for wave focusing. AIP Conference Proceedings, 1531, pp. 931-934. American Institute of Physics (AIP). DOI: 10.1063/1.4804924 ISSN 0094-243X

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Official URL: http://proceedings.aip.org/resource/2/apcpcs/1531/1/931_1

Abstract

The downwelling irradiance in water usually shows very high short-time variability due to focusing and defocusing of the sun and sky light by the wave-modulated water surface. Since the direct and diffuse components are affected differently by wave focusing, not only intensity is highly variable, but also the spectral shape is fluctuating. A depth dependent analytic model was developed which calculates the direct and diffuse components separately. By assigning weights to the intensities of the two components, measurements performed at arbitrary surface conditions can be analysed using inverse modeling by treating the weights as fit parameters. The model was validated against Hydrolight and field measurements and implemented into the public domain software WASI for the simulation and analysis of downwelling irradiance measurements.

Item URL in elib:https://elib.dlr.de/82452/
Document Type:Article
Title:A model of underwater spectral irradiance accounting for wave focusing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gege, Peterpeter.gege (at) dlr.deUNSPECIFIED
Date:May 2013
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1531
DOI :10.1063/1.4804924
Page Range:pp. 931-934
Editors:
EditorsEmail
Cahalan, RobertUNSPECIFIED
Fischer, JürgenUNSPECIFIED
Publisher:American Institute of Physics (AIP)
Series Name:AIP Conference Proceedings
ISSN:0094-243X
Status:Published
Keywords:Ocean optics, Irradiance, Wave focusing, Inverse modeling, Analytic model, WASI
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 Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Gege, Dr.rer.nat. Peter
Deposited On:22 May 2013 15:34
Last Modified:31 Jul 2019 19:40

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