Earth Observation Techniques to Assess Water Quality Monitoring in the Murray Darling Basin of Australia

Table 3.

Summary of semi-empirical bio-optical algorithms for MERIS andLandsat (ʎ in the table denotes the central wavelength of image bands).
Name of WQPs Sensor's Name Algorithm Applicability Reference

MERIS Name Band transformation  

Chl-a   Ratio b7/b9 turbid waters with high biomass [26]
    Three band (b7-1 - b9-1)xb10 turbid and hypertrophic waters [27]
    Reflectance Line Height b8 - b9 - ((b10 - b9)*(ʎb9 - ʎb8)x(ʎb10 - ʎb9)-1) turbid and hypertrophic waters [28]
  Landsat Ratio b1/b2 Chloropyll concentration ˂20µg.l-1 [29]
      (b1-b3)/b2 in the presence of suspended sediment scattering [30]
      b1/b3 Chloropyll concentration >20µg.l-1 [31]
      b3/b4   [32]
PC MERIS Ratio b9/b6 turbid inland waters [33]