Table 6.

Performance of algorithms for chlorophyll-a estimation at Taylorsville Lake using chlorophyll-a indices according to Peltzer (2015) Type 2 Geometric Mean Tests. Included for completeness because type-2 Geometric Mean Test is designed to evaluate the correlations values in natural systems, which some researchers prefer over the Type-1 method above.

ALGORITHMS	PEARSON’S R	PEARSON’S R2	SLOPE	INTERCEPT	STD_SLOPE	STD_INTERCEPT
CASIWY08CI	0.823	0.678	0.779	18.439	0.056	2.381
CASIMCI	0.694	0.481	0.778	15.105	0.074	3.323
CASIFLH	0.823	0.678	0.779	18.439	0.056	2.381
CASIMM12NDCI	0.759	0.575	528.902	16.426	44.569	2.882
CASIDA052BDA	0.811	0.658	180.594	−170.065	13.459	15.551
CASIGI033BDA	0.777	0.604	218.475	9.985	17.683	3.107
WV2MM12NDCI	0.699	0.488	722.538	31.049	68.019	2.643
WV2BE16FLHVIOLET	0.434	0.188	1.286	−247.371	0.166	36.840
WV2MI092BDA	0.706	0.499	346.165	−315.974	32.184	32.896
WV23BDA	0.665	0.442	339.094	30.311	33.669	2.804
S2MM12NDCI	0.836	0.698	663.210	1.328	46.464	3.163
S2BE16FLHVIOLET	0.478	0.228	3.116	24.055	0.389	3.808
S2SI052BDA	0.841	0.707	284.769	−281.353	19.611	22.010
S2BE163BDA	0.767	0.588	334.700	0.452	27.943	3.827
L8MM12NDCI	0.108	0.012	−493.140	57.535	80.447	5.604
L8AL10SABI	0.130	0.017	−346.854	58.084	55.909	5.590
L8BE16FLHBLUE	0.563	0.317	1.725	−70.685	0.197	12.700
L8BE16FLHVIOLET	0.555	0.308	1.254	−122.189	0.145	18.625
L8DA032BDA	0.095	0.009	−223.199	281.200	36.685	40.381
L8KN07KIVU	0.315	0.099	256.065	146.324	36.607	16.110
L8GI033BDA	0.345	0.119	−215.088	156.891	30.068	17.189
MODISMMNDCI12	0.090	0.008	−381.906	31.128	182.126	8.444
MODISSY002BDA	0.112	0.013	−186.502	218.386	87.880	90.029
MERIS*	N/A	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 an accurate Pearson’s r statistical correlations.