Emittance of fluorescence under UV light is one of the main properties of aquatic CDOM
that allows its fast and highly sensitive analysis [2-8].
 used the FU datasets, which forms the basis of EyeOnWater colour-based water quality assessment, to estimate the global changes occurring in the ocean in relation to the Chl-a, CDOM
, and SPM concentrations, for the case study of the Dutch Wadden Sea conservation area.
(2009), among others, highlights the importance of the nFLH from satellite to avoid interference from other components (e.g., CDOM
, shallow bottom) because this product is centered at 667, 678 and 748 nm, which increases its correlation with measurements of in situ Chl-a (e.g., Hu et al., 2005; [R.sup.2] > 0.91, Florida, USA).
The relatively good performance of the algorithms can be explained by some compensation among variables responsible for R([lambda]) variability; that is the backscattering coefficient ([b.sub.b]([lambda])) can be higher in the green but it will be also high in the blue, but explaining how does this compensation occurs is difficult because we do not have measurements of [b.sub.b]([lambda]) or even of CDOM
One optical sensor measured chlorophyll a, colored dissolved organic matter (CDOM
), and backscatter at 880 nm, while the second measured backscatter at 470 nm, 532 nm.
tripton, phytoplankton, and coloured dissolved organic matter (CDOM
), leads not only to the attenuation of irradiance with depth but also to a change in its spectral composition.
Adsorption of chromophoric dissolved organic matter (CDOM
) to basic cations and clay particles in the slump sediments was thought to be responsible for the observed shift from brown water in unaffected lakes to clear water in slump-affected lakes (Thompson et al., 2008).
Bhatti (2006) demonstrated the feasibility of remotely sensed data for effective and efficient monitoring of suspended sediments, total suspended sediments; chlorophyll and color dissolved organic matter (CDOM
) in water bodies.
However, rather essential conclusions may be drawn also on the basis of a certain group of in situ measurements: quite often the complex of data, containing the concentrations of optically significant substances (phytoplankton, coloured dissolved organic matter (CDOM
) and suspended matter) as well as the incoming irradiance and diffuse attenuation coefficient, has been collected.
Absorption by phytoplankton, detritus, and coloured dissolved organic matter (CDOM
) can be used to classify the so-called Case 2 waters (Mobley, 1994).