Comparison of Satellite and Ground-Based Phenology in China’s Temperate Monsoon Area
Table 2
Summary of five methods in estimating SOS from satellite data. The number for each method is defined for the purpose of distinguishing the satellite-derived SOS measures from ground phenophases in Table 1.
No.
Methods
Curve approaches
SOS determination approaches
Reference
13
Polyfit
Polynomial function
Threshold by the timing of greatest relative change in multi-year averaged series