Upscaling reflectance information of lichens and mosses using a singularity index: a case study of the Hudson Bay Lowlands, Canada T. Neta, Q. Cheng, R. L. Bello, and B. Hu Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada Department of Earth and Space Sciences and Engineering, York University, Toronto, Ontario, Canada Department of Geography, York U...