Work with the Data Yourself

1. Download and Install QGIS
2. Download any of the monthly data sets, see them below.
3. Import the data into QGIS.
4. Share what you find!

3 Steves Winery

We are grateful for a budding collaborative effort between award winning 3 Steves Winery and the Drone Tech Program. In a similar manner as our own vinard, we are currently conducting overflights at 3 Steves seven acre three varietal estate vineyard as an additional method for crop management. Below are monthly aerial images

Monthly Data Sets

Below are a selection of our monthly data sets. There are only 2 types of data available:

• RGB are color orthomosiac images in a non-compressed "tiff" format.
• NDVI are agricultural indexes saved a non-compressed "tiff" format.
• Zonal Statistics are a quantitative representation of the NDVI index, each zone is a 8' wide by 6' delineated box overlayed upon the rows, these boxes mimic a single vine, in this case there are 72 rows that contain 5,972 areas of data. 

• Common statistics that we can visualize:

  • Count: count the number of pixels (a proxy for biomass)
  • Sum: sum the pixel values
  • Mean: mean of pixel values
  • Standard Deviation: how tightly all the values are clustered around the mean.

   Other statistical methods to view the data

  • Median: median of pixel values (a good representative of the central location of data)
  • Min: minimum of pixel values
  • Max: maximum of pixel values
  • Range: range (max - min) of pixel values
  • Minority: the less represented pixel value
  • Majority: the most represented pixel value
  • Variety: to count the number of distinct pixel values
  • Variance: how far a set of numbers is spread out from their average value.

Data Sets

2024

• November RGB
• November NDVI
• November Zonal Statistics
• December RGB

2025

• January RGB