SapFlow

Calculate tree transpiration rates from thermal dissipation sap flow sensor data

Scientific AIFree

SapFlow converts thermal dissipation probe voltage differentials to sap flux density using the Granier calibration equation with species-specific corrections for ring-porous and diffuse-porous wood anatomy. The tool scales point measurements to whole-tree transpiration using sapwood area estimates from allometric relationships. Zero-flow baseline correction algorithms eliminate nocturnal thermal gradient artifacts that bias daily transpiration totals in exposed canopy positions.

Key Features

• ✓Granier equation calibration
• ✓Species-specific corrections
• ✓Whole-tree scaling
• ✓Zero-flow baseline correction
• ✓Sapwood area estimation