Data/hora: 01/06/2024 18:22:06

Provedor de dados: | 5
País: | France
Título: | Detailed validation of the bidirectional effect in various Case 1 waters for application to ocean color imagery
Autores: | Voss, K. J.; Morel, A.; Antoine, D.
Data: | 2007
Ano: | 2007
Palavras-chave: | Radiance distribution; Optical properties; Camera system; Reflectance; Instruments.
Resumo: | The radiance viewed from the ocean depends on the illumination and viewing geometry along with the water properties, and this variation is called the bidirectional effect. This bidirectional effect depends on the inherent optical properties of the water, including the volume scattering function, and is important when comparing data from different satellite sensors. The current model of f/Q, which contains the bidirectional effect, by Morel et al. (2002) depends on modeled, not measured, water parameters, thus must be carefully validated. In this paper we combined upwelling radiance distribution data from several cruises, in varied water types and with a wide range of solar zenith angles. We compared modeled and measured L(view)/L(nadir) and found that the average difference between the model and data was less than 0.01, while the RMS difference between the model and data was on the order of 0.02-0.03. This is well within the statistical noise of the data, which was on the order of 0.04-0.05, due to environmental noise sources such as wave focusing.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00209/32011/30548.pdf

DOI:10.5194/bg-4-781-2007

https://archimer.ifremer.fr/doc/00209/32011/

Editor: | Copernicus Publications
Formato: | application/pdf
Fonte: | Biogeosciences (1726-4170) (Copernicus Publications), 2007 , Vol. 4 , N. 5 , P. 781-789

Fonte:

Author(s) 2007. This work is licensed under a Creative Commons License.

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