Utilization of combined remote sensing techniques to detect environmental variables influencing malaria vector densities in rural West Africa

Table 1 Different indices combining different spectral bands were tested for statistical association with presence of surface water in step 1 and for correlation with larvae abundance in step 2

Index	Calculation
NDVI [29] Normalized Difference Vegetation Index	$\frac{N I R - r e d}{N I R + r e d}$
SAVI [30] Soil Adjusted Vegetation Index	$\frac{N I R - r e d}{N I R + r e d} * (1 + L)$
NDPI [24] Normalized Difference Pond Index	$\frac{S W I R - g r e e n}{S W I R + g r e e n}$
NDWI Gao [31] Normalized Difference Water Index Gao	$\frac{N I R - S W I R}{N I R + S W I R}$
NDWI Mac Feeters [32] Normalized Difference Water Index Mac Feeters	$\frac{g r e e n - N I R}{g r e e n + N I R}$
MNDWI Mac Feeters [33] Modified NDWI Mac Feeters	$\frac{g r e e n - S W I R}{g r e e n + S W I R}$
NDTI [24] Normalized Difference Turbidity Index	$\frac{r e d - g r e e n}{r e d + g r e e n}$

ISSN: 1476-072X