In-situ evidence of non-zero reflectance in the OLCI 1020 nm band for a turbid estuary.
Knaeps, E., Dogliotti, A. I., Raymaekers, D., Ruddick, K., and Sterckx, S.
Remote Sensing of the Environment, 120, 133-144. (2012). DOI:10.1016/j.rse.2011.07.025.