Version 2.1 includes minor bug fixes and changes in syntax across functions from v2.0. This version also adds two functions to assess the quality of outputted reflectance spectra. These include qwip_score.m, which calculates the Quality Water Index Polynomial score from Dierssen et al. 2022 (full reference in the file header) and QAscores.m, which calculates the quality assurance score from Wei et al. 2016 (full reference in the file header).