Table 1. Summary of potential flooding indicators, their general formula, matched with MODIS band formula and their values.
Indicator | General Formula | MODIS Band Formula | Value range |
---|---|---|---|
NIR [33,34] | - | b01 | Superior to 0 |
NDVI [35] | NDVI = | (b01-b02)/(b01+b02) | Between -1 and 1 |
EVI [36] | EVI = | 2.5((b01+b02)/(b01+6b02-7.5b03+1)) | Between -1 and 1 |
NDWI [37] | NDWI = | (b04-b01)/(b04+b01) | Between -1 and 1 |
NDII [38] | NDII = | (b01-b06)/(b01+b06) | Between -1 and 1 |
MNDWI [39,40] | MNDWI = | (b04-b06)/(b04+b06) | Between -1 and 1 |
Note: NIR = Near Infrared Red, NDVI = Normalized Difference Vegetation Index, EVI = Enhanced Vegetation Index, NDWI = Normalized Difference Water Index, NDII = Normalized Difference Infrared Index, MNDWI = Modified Normalized Difference Vegetation Index.