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Proceedings Paper

Measurement and modeling of radiance reflectance in Garda Lake
Author(s): Silvia Ferratini; Claudia Giardino; Donald C. Pierson; Niklas Stroembeck; Eugenio Zilioli
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Paper Abstract

A simple model which predicts radiance reflectance below the water surface as a function of the concentrations of chlorophyll, colored dissolved organic matter (CDOM), and suspended particulate material (SPIM) was applied in Garda lake, the largest freshwater basin in Italy and one of the most important of the European Union. The model is similar to others developed for oceanic and coastal waters predicting the radiance reflectance as a function of two inherent optical properties of water: the absorption coefficient and the backscattering coefficient. Three stations were sampled in January '98 in the southern part of Garda lake. Samples of water were collected just below the water surface to extract the optically active substances. Two underwater radiometers assembled on the same probe provided the measurement of downwelling irradiance and up welling radiance, respectively. At the same time the apparent optical properties were collected above the water volume by using a spectro radiometer. The simulated radiance reflectance spectra were compared to the ones measured and significant correlations were retrieved.

Paper Details

Date Published: 22 December 2000
PDF: 8 pages
Proc. SPIE 4172, Remote Sensing of the Ocean and Sea Ice 2000, (22 December 2000); doi: 10.1117/12.411703
Show Author Affiliations
Silvia Ferratini, Istituto di Ricerca sul Rischio Sismico (Italy)
Claudia Giardino, Istituto di Ricerca sul Rischio Sismico (Italy)
Donald C. Pierson, Uppsala Univ. (Sweden)
Niklas Stroembeck, Uppsala Univ. (Sweden)
Eugenio Zilioli, Istituto di Ricerca sul Rischio Sismico (Italy)


Published in SPIE Proceedings Vol. 4172:
Remote Sensing of the Ocean and Sea Ice 2000
Charles R. Bostater Jr.; Rosalia Santoleri, Editor(s)

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