“…For example, simple linear relationships between SD-1, or kd, and phytoplankton biomass have frequently been applied to address optical implications of eutrophication (e.g., Megard, et aL, 1979;Tilzer, 1983). However, the optics of many lakes cannot be modeled accurately with simple empirical expressions because of uncoupled variations in attenuating constituents or the omission of an important constituent (e.g., Effler, et aL, 1984). Deterministic frameworks, which are based on the fundamental inherent optical properties a and b (e.g., Effler, et al, 1984;Effler, et al, 1987a;Weideman and.…”