Viewing Vegetation Indices
The Analyze tab on each field’s detail page provides a unified view of all imagery layers — drone flights and satellite passes — on an interactive map.
Available indices
Using the Analyze tab
Layer selection
- Navigate to a field and open the Analyze tab
- The timeline at the bottom shows all available dates (drone flights and satellite passes)
- Select a date to load its layers
- Use the layer picker to switch between available indices
Colormaps
Vegetation indices render with scientifically standard colormaps:
- RdYlGn (Red-Yellow-Green) — default for most indices. Red = low/stressed, green = healthy
- Viridis — perceptually uniform, colorblind-friendly alternative
Toggle between colormaps using the colormap selector above the map.
Comparing layers
- Use the opacity slider to blend a vegetation index over the base map or orthomosaic
- Switch between drone and satellite layers for the same date range to compare resolution and coverage
- The timeline supports scrolling through historical data to track changes over the growing season
Interpreting NDVI values
NDVI is a good general indicator, but NDRE is more sensitive to nitrogen stress in mid- to late-season crops. Use NDRE when scouting for nutrient deficiencies.
