Table 3.

Performance of algorithms for chlorophyll-a estimation at Taylorsville Lake using chlorophyll-a indices according to Pearson’s r test (Type-1) linear regressions.

ALGORITHMS	NO. OF POINTS	PEARSON’S R	PEARSON’S R2	P_VALUE	SLOPE	INTERCEPT
CASI CI	70	0.823	0.678	<0.001	0.642	21.677
CASI MCI	70	0.693	0.481	<0.001	0.539	21.745
CASI FLH	70	0.823	0.678	<0.001	0.642	21.677
CASI NDCI	70	0.758	0.575	<0.001	401.211	21.34
CASI 2BDA	70	0.811	0.658	<0.001	146.489	−131.003
CASI 3BDA	70	0.777	0.604	<0.001	169.812	15.953
WV2 NDCI	70	0.699	0.488	<0.001	504.827	32.776
WV2 FLHVIOLET	70	0.434	0.188	<0.001	0.558	−86.486
WV2 2BDA	70	0.706	0.499	<0.001	244.43	−212.303
WV2 3BDA	70	0.665	0.442	<0.001	225.43	32.479
S2 NDCI	69	0.836	0.698	<0.001	554.162	7.204
S2 FLH VIOLET	69	0.478	0.228	<0.001	1.489	30.850
S2 2BDA	69	0.841	0.707	<0.001	239.526	−230.765
S2 3BDA	69	0.767	0.588	<0.001	256.550	9.001
L8 NDCI	69	0.108	0.012	0.375	−53.498	39.285
L8 SABI	69	0.130	0.017	0.288	−44.960	39.789
L8 FLH BLUE	69	0.563	0.317	<0.001	0.972	−23.625
L8 FLH VIOLET	69	0.555	0.308	<0.001	0.696	−51.341
L8 2BDA	69	0.095	0.009	0.437	−21.212	60.267
L8 KIVU	69	0.315	0.099	0.008	80.752	71.521
L8 3BDA	69	0.345	0.119	0.004	−74.272	78.442
MODIS NDCI	10	0.089	0.008	0.804	−34.494	28.393
MODIS 2BDA	10	0.109	0.012	0.758	−20.866	49.409
MERIS*	3	N/A	N/A	N/A	N/A	N/A

^*The MERIS configuration only produced three usable water only pixels, which did not meet the minimal requirements to derive Pearson’s r statistical correlations.