2.5.3 Turf Health & Surface Temperature

✅ Feature Purpose

This feature analyzes drone-captured images to monitor turf health (NDVI, VARI) and surface temperature (thermal imaging) across the entire course at a glance.

👷 When to Use

• When you need to view and manage the entire course over the long term.

• When you need to quickly and clearly check the condition of a specific green or detect potential turf diseases.

🧩 Terminology

• Turf Health

  • NDVI): A function that visualizes turf photosynthetic activity with a color map. Enables precise turf health evaluation and identifies low-activity areas for planning disease control, fertilization, and irrigation measures.

  • VARI: A function that quickly measures turf greenness based on RGB photos. While not suitable for detailed diagnosis, it is useful for comparing darker or lighter turf areas.

• Surface Temperature: A function that visualizes turf surface temperature distribution using thermal images. Helps identify dry, overheated, or drainage problem areas.

▎Turf Health

① When the Turf Health menu is activated, you can compare turf conditions across the entire course and quickly spot problem areas (disease, lack of moisture, etc.).

② Use the Add File button to upload previously analyzed turf health files.

• Admin users can also click the Green Analysis button to analyze the VARI index of greens.

③ Select available options to view turf health data.

① VARI

• Automatically generated when captured with a standard optical drone.

• Check the box to view VARI.

• Adjust the range (legend) and opacity to customize the visualization.

② VARI – Green

• Appears after running Green Analysis.

• Check the box to view only green areas with the VARI index.

• Adjust the range (legend) and opacity to customize the visualization.

③ NDVI

• Generated from drones equipped with multispectral sensors.

• Check the box to view NDVI.

• Adjust the range (legend) to customize the visualization.

▎Surface Temperature

① When the Surface Temperature menu is activated, you can detect areas with large temperature variations across the course, helping to identify summer stress zones or irrigation imbalances.

② Check the box to view surface temperature data.

• Adjust the range (legend) to customize how thermal index data is displayed.