The polarization properties of reflectance from coastal waters and the ocean-atmosphere system

S. Ahmed; A. Gilerson; M. Oo; J. Zhou; J. Chowdhary; B. Gross; F. Moshary

doi:10.1117/12.689168

13 October 2006 The polarization properties of reflectance from coastal waters and the ocean-atmosphere system

S. Ahmed, A. Gilerson, M. Oo, J. Zhou, J. Chowdhary, B. Gross, F. Moshary

Proceedings Volume 6360, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006; 636003 (2006) https://doi.org/10.1117/12.689168
Event: SPIE Remote Sensing, 2006, Stockholm, Sweden

Abstract

The polarization characteristics of the water leaving radiance can provide information on bio-optical properties and composition of coastal water and can be used as well as a tool for the separation of chlorophyll fluorescence from elastic reflectance spectra. We report the results of simulations using a coupled ocean-atmosphere vector radiative transfer code (NASA GISS) to obtain the polarized reflectance for various water compositions typical for coastal zones, as function of wavelength and sun/sensor geometry. Results show that even for sensor orientations outside of the principal scattering plane, the polarization can nearly approach the maximum values observable in the principal scattering plane thereby minimizing undesirable sun glint effects. Simulations are complemented by laboratory and field measurements in Chesapeake Bay and near Sapelo Island, GA. We also report the results of the fluorescence retrieval from reflectance spectra using polarization discrimination as well as fluorescence line height (FLH) algorithms. Performance of these algorithms is analyzed in conjunction with the relationship between fluorescence magnitude and chlorophyll concentrations in the conditions typical for coastal waters.

Citation Download Citation

S. Ahmed, A. Gilerson, M. Oo, J. Zhou, J. Chowdhary, B. Gross, and F. Moshary "The polarization properties of reflectance from coastal waters and the ocean-atmosphere system", Proc. SPIE 6360, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006, 636003 (13 October 2006); https://doi.org/10.1117/12.689168

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available