Greenhouse & Grow-Room IR Leaf-Offset Vapor-Pressure-Deficit (VPD) Solver

Deterministic Tetens leaf-to-air saturation vapor-pressure differential VPD_leaf = e_sat(T_leaf) - (RH/100)*e_sat(T_air) + Penman stomatal conductance feedback engine (.json, .pdf, .csv) built for Apogee, Pulse, Priva, SANlight — zero-upload ephemeral Wasm RAM execution.

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