The intensity of multiple scattering is also dependent on the water types. The cases of three different water types are considered, e.g., type I: a = 0.1 m-1, b = 0.1 m-1, type II: a = 0.15 m-1, b = 0.15 m-1, and type III: a = 0.179 m-1, b = 0.219 m-1, while the FOV is fixed at 50 mrad and other conditions stay unchanged. The term a refers to the absorption coefficient and the term b refers to the scattering coefficient. Figure 9 shows that the backscatter and attenuation deviations 81 and 82 are within 8% and 2% for the iodine cell discriminator, respectively, and are within 2% and 1% for the FWMI discriminator, respectively. The discriminator transmittance is again closely related to the retrieval deviations, and the iodine cell presents larger deviations. Furthermore, the deviations increase with the water turbidity, because a large scattering coefficient generally increases the intensity of multiple scattering.