Title :
Interpretation of parametric maps obtained by means of “blue to green ratio” over coastal waters
Author :
Cipollini, P. ; Corsini, G.
Author_Institution :
Dept. of Inf. Eng., Pisa Univ., Italy
Abstract :
This paper deals with the effects of dissolved organic matter on the “blue to green ratio” used for pigment estimation in oceanography. A model of ocean colour by Sathyendranath et al. (1989), with slight modifications, was used to compute mean reflectance values in the blue and green channels of a radiometer. A statistical analysis was performed to find the best correlation between the logarithms of “blue to green ratio” and the logarithms of marine parameter concentrations. The results suggest that the maps retrieved by means of “blue to green ratio” should be interpreted in terms of a new parameter, that is a cumulative-concentration of pigments and dissolved organic matter
Keywords :
aquaculture; geophysical signal processing; image colour analysis; oceanographic techniques; optical information processing; remote sensing; blue to green ratio; chemical composition; coastal; dissolved organic matter DOM; image color; image color colour optics; image colour analysis; logarithm; marine biology; marine vegetation; measurement technique; multispectral remote sensing; ocean sea coast image processing; optical imaging; optical method; parametric map interpretation; pigment estimation; plankton phytoplankton; remote sensing; statistical analysis; underwater light; visible; Oceans; Optical scattering; Optical sensors; Pigmentation; Radiometry; Reflectivity; Sea measurements; Sediments; Statistical analysis; Water pollution;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399665
