How to prioritize what fields to look at with TerrAvion imagery

How to prioritize what fields to look at with TerrAvion imagery

For users with many fields in their TerrAvion account, picking which fields to look at first can seem overwhelming. Here are some tips on how to decide what fields to look at for specific use cases.

Quick tips

  1. Select the farm you wish to analyze (YouTube). By selecting at a farm level instead of a field level, you can see multiple fields at once instead of immediately zooming in to the field level. This will give you an overview of what is going on in multiple fields. Another way to look at multiple fields at once is by zooming out of your fields until they are still showing image data but are small. The image below shows the Dynamic Vigor of many fields and as you can see most of them look pretty even coloredcircles dyn vigor 1289x677
  2. The Dynamic Vigor and thermal layers help you see uneven color patterns quicker than the other bands typically do. Depending on which color scale you have selected, 'off' colors can vary, but in the Dynamic Vigor image below, the darker reds represent lower vigor. Such an uneven pattern might be a sign that something is not right. In this situation, it helps to look at previous image dates, to see if they were issues already, or whether it is a new situation. It also helps to look at other image layers, like the Thermal and the Synthetic color to help you determine what might be going on. Of course, zooming in as much as possible can help too.
detections in field Dynamic vigor-1

Detailed steps

  1. Start by looking at your fields on the farm level. If you have multiple fields per farm you can view them at once by zooming out. Check to spot any abnormalities in color variances that stand out.doing detections natural color
  2. Zoom in a little to see multiple fields in more detail, click and drag to browse your fields at increased zoom level. Start with Synthetic Color imagery.How to Prioritize What Fields To Look At With TerrAvion b

Change to NDVI and thermal layers as you browse your fields
NDVI image band
How to Prioritize What Fields To Look At With TerrAvion c
Thermal image bandHow to Prioritize What Fields To Look At With TerrAvion d4.  Decide what a normal pattern is and what you are seeing. Below are topics that you might be able to see in your fields in relationship to issue detections and scouting.

Issue Detection

i. For irrigation and field moisture issues

  1. Look on farm level for fields that show abnormal patterns in thermal imagery
  2. Zoom in to fields that appear to show suspicious thermal patterns
  3. Conduct in-field scouting of suspicious thermal patterns

ii. For weeds, fertility issues, pest and disease detections, crop
damage, stand counts, in-season tissue sampling, and equipment failures:

  1. Use natural color and NDVI imagery to spot vigor variability and inconsistencies that stand out on the farm level.
  2. Adjust the NDVI color-map to show more detail
  3. Zoom in to assess identified issues individually on the field level
  4. Scout suspicious issues using your TerrAvion imagery in one of 
    the following apps:

Imagery guided Scouting

Scouting a field with the aid of imagery can be a big help. There are several apps available that integrate with TerrAvion imagery data. First of all, there is TerrAvion Mobile, TerrAvion's own mobile app with many useful features. Furthermore, there are many integrated partner app such as: 

  1. Farmdog
  2. SST, learn more:  Scouting with SST
  3. Climate FieldView; learn more: Scouting with Climate FieldView
  4. My JohnDeere
To read more in detail about imagery guided scouting here. As you scout your fields, consider all factors that could contribute to what you are seeing in your imagery including:
  1. Soil conditions
  2. Moisture conditions
  3. Yield history
  4. Field history

Note your findings by dropping a pin on a field in TerrAvion Mobile. At your desktop, you can use the TerrAvion Histogram tool to project your results across an entire field.