Enhanced Vegetation Index Trial MAPSET Registration
Our proprietary Enhanced Vegetation Index (EVI) has been developed to specifically quantify vigor in grapevines. The EVI is a breakthrough in vineyard analytics - NDVI mapping services commonly available on the market are suited for non-vineyard general agriculture only, and are subject to inaccuracies compromising their value as a tool for vineyard management.
Algorithms, Cameras, and Drones
Recent Advances in Scientific Algorithms, Multispectral Cameras, and Autonomous Drones provide new tools and significantly higher levels of accuracy than other vineyard analytical maps. Hawk Aerial and VineView Scientific Aerial Imaging have partnered to bring these advances to the Vineyard industry. See the sections following for more details.
Calibrated Enhanced Vegetation Index
Our CEVIs were developed specifically for vineyards:
• Additional, exact light bands
• Wine grape only algorithms
• Scientifically verified with ground data
Scaled to an absolute standard, allowing comparisons:
• Over time and growing seasons
• Between parcels
• Multiple calibrations
• Proprietary processing methodology
• Purpose-designed and built multispectral camera
Comparisons Over Time
Calibrated to a standard scale, Absolute CEVI's allow accurate comparisons over time and growing seasons.
CEVI's Separate Canopy from Cover Crop
Cover crop and ground data can distort the true picture. Canopy only view gives pure vine information.
Use Calibrated EVI Zones - Absolute to measure variability and track your vineyard's progress by comparing results between fields, across the growing season, and year over year with a series of these maps.
Calibrated EVI Zones - Relative highlights areas of interest with different levels of vine vigor. Take immediate corrective action with confidence using this map to guide you.
High Vigor Areas
Segmentation of grape quality for higher pricing
Ensure proper drainage & irrigation management
Cover crop to control soil moisture
Adjust crop load
Modify trellising structure
Low Vigor Areas
Examine & modify irrigation
Check for disease, insects
Failing to correct for changes in lighting conditions, NDVI images taken 2 hours apart falsely indicate changes in vine health when none have occurred. This can mislead vineyard managers, possibly causing them to take improper actions.
CEVI's Correction of NDVI Weaknesses
CEVI's use additional wavelengths, scientifically proven algorithms and multiple calibrations to correct NDVI inaccuracies, producing virtually identical maps, accurately reflecting vine vigor. See our partner VineView's video on this subject, The New Vigor Map:
Faster than walking field + identify/assess issues early + make informed decisions + precisely targeted actions.
Estimate: the majority of west coast vineyards yield 2-6 tons/acre at prices ranging from $800 to $5,000 per ton, resulting in grape values of $5,000 - $10,000 per acre Just 10% combined improvement in harvest quality and/or yield results in $500 - $1,000 increased profits per acre. Just 10% combined improvement in grape quality and/or yield add $500 - $1,000 to your bottom line.