GeoAcuity and Firmatek team up for vegetation monitoring project

GeoAcuity completed a second UAS multispectral data collection last week for the Cajon Creek mining site in San Bernardino, California.  This work was part of an on-going partnership with Firmatek for vegetation mitigation and site reporting. 

Multispectral imagery was captured for the entire site during the UAS flights using a @senseFly’s eBeeX RTK fixed wing platform with a @Parrot Sequoia Multispectral (MSI) sensor. We collected imagery in four discrete bands and processed the imagery using photogrammetry to create radiometrically reflectance layers. 

A range of different vegetation indices were derived from the reflectance maps, including Normalized Difference Vegetation Index and Normalized Difference Red Edge area coverage. RTK capabilities and the senseFly geobase antenna allowed for less than 4cm horizontal and vertical spatial accuracies for the resulting geospatial layers.

Discrete bands: 

-        Green (550 nm ± 40 nm)

-        Red (660 nm ± 40 nm) 

-        Red edge (735 nm ± 10 nm) 

-        Near infrared (790 nm ± 40 nm)