Operational Diagnostics, Estimation of the Scale of Damage and Aftermath Reduction of the Stressful Natural Processes - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 751

Fig. 9.14 General view of 8-channel spectrophotometer (Aleshin and Klimov 1992; Klimov et al.
1999)

Fig. 9.15 Schematic diagram of the 8-channel spectrophotometer (Soldatov 2011)

Light intensity is attenuated by water layer according to the law I(z)=I(0) exp

cient (m − 1 ). One of the
inaccurate methods for the assessment of water quality is based on the value of
parameter

−ʲ ʲ

( z), where z is the depth (m), is the attenuation coef

. This method does not give the precise assessment of water quality.
Nevertheless, it shows how many pollutants there are into the water. Tables 9.11
and 9.12 characterize the optical parameters for a few reservoirs of South Vietnam.

ʲ