How To Do Field Sampling With TerrAvion Imagery
Use TerrAvion imagery to guide sampling and scouting efforts to save you time and money. TerrAvion NDVI imagery provides growers with a visual representation of the health of their fields. By sampling/scouting NDVI zones, growers can extrapolate ground-truthed findings across all corresponding zones to understand the distribution of their sample zones throughout an entire field.
- If you are not a TerrAvion customer, first place an order and create an account.
- If you are part of a team that already has imagery and would like to have access to that imagery, have the account owners share imagery to your account.
- Log into your TerrAvion account
- Select a field where you wish to identify sampling zones.
- Filter through all image layers for full context when analyzing your fields.
- Use thermal, natural color, and NDVI imagery to spot vigor/thermal variability and inconsistencies that stand out on the farm level.
- If the Vigor map doesn’t show adequate variation, use the automatic vigor map to bring out more detail or look at the Dynamic Vigor map.
Identify your sample zones based on what you are sampling for
- Identify at least three sample areas
a. High vigor
b. Medium vigor
c. Low vigor
2. Drive to your field and use the GPS beacon on your mobile app to navigate to sample points.
3. At each sample point, record your observations.
4. After you complete your sampling, correlate your counts to your NDVI recordings.
5. Open the TerrAvion OverView app and select the same image/date you collected samples for.
6. Turn on the NDVI layer and open the histogram.
7. In OverView, use the information from step #4 and the histogram tool to extrapolate your findings in your scouting zones across your entire field.
8. Repeat this process for the remaining sample zones.