Services
Crop Health Indexes
Crop health indexes provide information of plant physical structure and plant cover.
NDVI
Indicator of vegetation greenness and growth. using the following formula(B08 - B04) / (B04 + B08)
NIRV
Reflects the productivity and yield of the crops as closely as possible. using the following formula((B08 - B04) / (B08 + B04)) * B08
NDWI
Indicator of water stress and irrigation practices. using the following formula(B11 - B08) / (B11 + B08)
EVI
Similar to SAVI, tries to reduce noise in NDVI and resolves saturation issues at high LAI, closer related to plant productivity (gross primary production GPP). How advantageous depends on the crop type. using the following formula2.5 * (B08 - B04) / ((B08 + 6.0 * B04 - 7.5 * B02) + 1.0)
CHI
Chlorophyll content Index, ideal for monitoring biotic stress, yield estimation and Nitrogen requirements. using the following formula(B08 / B05) - 1.0
NDRE
Normalized Difference Red Edge Index for NITROGEN stress monitoring. using the following formula(B08- B05) / (B08 + B05)
LAI
Commonly measured in fields, used in crop models to predict yield. using the following formula10.22 *( (B08 - 0.460 * B08)*0.0001) + 0.4768
SAVI
Essentially, NDVI corrected for noise coming from soil. using the following formula(B08 - B04) / (B08 + B04 + L) * (1.0 + L)
, whereL=0.428
RGB
True color image, used as visual check on customer side for any odd patterns in the indexes.