GIS Monitoring of Vineyard Ripening (Brix)
R² = 0.9784, harvest forecast 13 September (Julian day 256)
ProblemDeciding when to harvest is one of the most consequential decisions in viticulture, picking too early loses sugar accumulation, picking too late risks over-ripening, but isolated field observations alone give no predictive lead time.
SolutionGrape must samples collected across five dates and fit to a logarithmic regression against Julian day, combined with NDVI spectral analysis and Thiessen-interpolated spatial ripening maps.
ImpactA regression model (R-squared = 0.9784) forecasting harvest maturity (25.5-27 degrees Bx) on 13 September, giving vineyard managers real predictive lead time for labour and winery logistics.
Process simulation
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