|
|
|
|
| |
|
|
| Voss, K. J.; Morel, A.; Antoine, D.. |
| 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... |
| Tipo: Text |
Palavras-chave: Radiance distribution; Optical properties; Camera system; Reflectance; Instruments. |
| Ano: 2007 |
URL: https://archimer.ifremer.fr/doc/00209/32011/30548.pdf |
| |
|
|
| Cabello-Pasini,Alejandro; Macías-Carranza,Víctor. |
| Leaf absorptance (A), transmittance (T) and reflectance (R) of visible solar radiation strongly correlate with chlorophyll concentration in a number of plant species, however, little is known about the optical properties of grapevine leaves. Consequently, the objective of this study was to evaluate the optical properties of intact leaves for estimating chlorophyll concentration in Cabernet Sauvignon, Merlot and Tempranillo vaieties. Leaves from Cabernet Sauvignon, Merlot and Tempranillo vines were collected at San Antonio de las Minas, Baja California, México, in 2009, and A, T and R determined with a spectroradiometer. While leaf age played a significant role on the leaf chlorophyll concentration, the chlorophyll a+b concentration vs. R, T and A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Absorptance; Chlorophyll; Reflectance; Transmittance; Optical properties. |
| Ano: 2011 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952011000800007 |
| |
|
|
|
