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A note on G-functions within the scope of radiative transfer in turbid vegetation media

Otto, Sebastian and Trautmann, Thomas (2008) A note on G-functions within the scope of radiative transfer in turbid vegetation media. Journal of Quantitative Spectroscopy and Radiative Transfer, 109 (17-18), pp. 2813-2819. DOI: 10.1016/j.jqsrt.2008.08.003. ISSN 0022-4073.

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Official URL: http://www.sciencedirect.com/science/article/pii/S0022407308001751


This work reports on the use of leaf normal distribution functions (LNDFs) in the radiative transfer theory of turbid vegetation media to calculate the so-called G-function (GF). We revisit the normalisation condition of the LNDFs and present an extended set of fully explicit analytical expressions for GF considering commonly used standard LNDFs from purely vertical to purely horizontal model leaves. Applying them we derive GF for a generalised LNDF, which is written as a series of cosine functions with a number of free parameters. This generalisation opens up the possibility to fit leaf orientation measurements to our generalised LNDF and to determine the respective analytical GF. Thus, an extended range of leaf architectures, beyond the usual and less realistic standard LNDFs, can be considered with respect to applications of the radiative transfer theory in turbid vegetation media.

Document Type:Article
Title:A note on G-functions within the scope of radiative transfer in turbid vegetation media
AuthorsInstitution or Email of Authors
Otto, Sebastiansebasotto@gmx.de
Trautmann, Thomasthomas.trautmann@dlr.de
Journal or Publication Title:Journal of Quantitative Spectroscopy and Radiative Transfer
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 2813-2819
Keywords:Radiative transfer, turbid vegetation media, deciduous forest, leaf normal distribution, G-function
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 Entwicklung von Atmosphärenprozessoren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Prof.Dr. Thomas Trautmann
Deposited On:30 Sep 2008
Last Modified:13 Mar 2014 14:28

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