The estimation of chlorophyll concentration in the water by use of a field spectroradiometer above the water surface is necessary for the removal of the effect of specular reflection at the water surface. The amount of specular reflection from the water surface was assessed on the basis of the spectral signature data that was measured above and below the water surface. Furthermore, a method to remove the effect of specular reflection from spectral signature data that was measured above water surface was proposed. Finally, chlorophyll-a concentration was estimated accurately from the spectral signature measured by field spectroradiometer above water surface with the proposed surface reflection model.
© 2002 Optical Society of America
Original Manuscript: February 25, 2002
Revised Manuscript: July 12, 2002
Published: October 20, 2002
Kazuo Oki and Yoshifumi Yasuoka, "Estimation of chlorophyll concentration in lakes and inland seas with a field spectroradiometer above the water surface," Appl. Opt. 41, 6463-6469 (2002)