A Method Of Selecting Optimal Angstrom Coefficients To Obtain Quantitative Ocean Color Data From Nimbus-7 CZCS

R. A. Arnone; P. E. La Violette

doi:10.1117/12.943304

27 September 1984 A Method Of Selecting Optimal Angstrom Coefficients To Obtain Quantitative Ocean Color Data From Nimbus-7 CZCS

R. A. Arnone, P. E. La Violette

Author Affiliations +

Proceedings Volume 0489, Ocean Optics VII; (1984) https://doi.org/10.1117/12.943304
Event: Ocean Optics VII, 1984, Monterey, United States

Abstract

The application of Coastal Zone Color Scanner (CZCS) imagery to determining quantitative measurements of bio-optical properties requires accurate methods of eliminating the large signal component due to the atmosphere. Present atmosphere correction techniques based on single-scattering theory have produced encouraging results. These results, however, are limited by the proper selection of aerosol characteristics that accurately represent the entire image. An interactive method is suggested for selecting the optimum Angstrom coefficient over an entire image that utilizes the fact that the Angstrom coefficient is wavelength dependent on the aerosol optical thickness. This interactive technique permits a real-time display of the results and grossly indicates the horizontal distribution of the aerosol types. Results of the method are applied to a sequence of CZCS imagery of the Alboran Sea. Analyses indicate that the Angstrom coefficient selections were independent of the bio-optical properties calculated from the ratio of the water-leaving radiance of 443- to 550-nm channels of CZCS.

Citation Download Citation

R. A. Arnone and P. E. La Violette "A Method Of Selecting Optimal Angstrom Coefficients To Obtain Quantitative Ocean Color Data From Nimbus-7 CZCS", Proc. SPIE 0489, Ocean Optics VII, (27 September 1984); https://doi.org/10.1117/12.943304

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