Tutorial: crop monitoring using vegetation indices

3.2. Import Maize field boundary

1. Import shapefile to WebODM

In webODM, it is possible to import the shapefile representing a boundary which will help us in focused analysis. In this case let us import the maize boundary which we will will further analyse in QGIS as well.

To import the shapfile:

• Prepare a zip file with the shape file(s) of the Maize boundary. You can download it from here.
• Upload the zip file using the icon on the right side of the interface

The below screenshot shows imported maize boundary over VARI.

2. Download the vegetation index - VARI as GeoTIFF, for further analysis in QGIS

Click on the Export:  button in the layer manager to save as geotiff into your local drive. Note the folder where you are saving the geotiff file.

• Generate the two other indices EXG and GLI for the date 18/12/2019
• Download these two indices as geotiff files