GDD STUDY - METHOD
How HP-GDD is calculated.
Every component, equation, reference point, multiplier and cap used in the current Hambrook Pressure-Adjusted Growing Degree Days (HP-GDD) prototype - loaded directly from the model configuration.
Research and HP-GDD framework: Jonathan Hambrook
Prototype settings. These are the current settings for screening and calibration. They are not universal biological constants and HP-GDD is not a validated planting recommendation.
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WORKED EXAMPLE
Orange, current decade
The five component values below come straight from the current-decade inputs for Orange.
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Explore the Orange region