The quantification of coloured
dissolved organic material (CDOM) in lakes can be estimated from remote sensing
data collected using handheld and airborne spectrometer sensors (Arenz et al.,
1996; Hirtle & Rencz, 2003; Vertucci & Likens, 1989; Kutser et al. 2004
& 2005, Leguet et al. 2013 in print). This is an important
correlation to make, as examining DOC concentrations for early identification
of mercury pollution could prevent harmful damage of the water columns (Hirtle
& Rencz 2003), which habitats in Canada rely on for overall ecosystem
health. Kutser
et al. (2005) found after analyzing Landsat, IKONOS and ALI that their imagery
was adequate for concentration CDOM ranges in Nordic countries. The results
showed that the 16-bit radiometric resolution of ALI, a prototype
of the next generation of Landsat launched in February 2013, would be suitable
for mapping CDOM in a wider range of concentrations (Kutser et al. 2005). For
this reason, it is important to confirm this study, and analyze the concentration
ratios of CDOM in previously studied lakes using newly acquired data from the
Landsat 8. This data will be matched with field-acquired data of the CDOM
concentrations in lakes across the Eastmain and Abitibi regions. These
values will help confirm the relationship between the calculated and sampled
values of CDOM with the Landsat 8 sensor. Additionally, with confirmation of
the Landsat 8 band ratios, this study will aim to quantify the amount of carbon
in lakes across other provinces of Canada using the data from Landsat 8.
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