Figure 4
Scatter plots and concentrations of C-PC in Loch Leven. Figures showing (a) the relationship between Rrs(710):Rrs(670) and the log concentration of Chl a; (b) the relationship between Rrs(710):Rrs(620) and the log concentration of C-PC; and (c) the concentration of C-PC in Loch Leven on 22 August 2007 as retrieved from airborne CASI data using the semi-empirical algorithm (the inset figure shows the presence of a thick cyanobacterial scum on the windward shoreline of Castle Island).