Satellite Applications for Detecting Vegetation Phenology - Satellite-based Applications on Climate Change - page 257

Table 17.1 Summary of approaches for satellite-derived phenology
Approach Reference Advantage Disadvantage

Vegetation index threshold Lloyd ( 1990 );

Fischer ( 1994 );
Markon et al. ( 1995 )

Easy to apply Not applicable across land covers

Moving average of smoothed NDVI Reed et al. ( 1994 ) Independent of land cover

types

Hard to determine the moving average time
interval

Normalized NDVI ratio White et al. ( 1997 ) Ecologically meaningful Dependent of land covers

Derivative of NDVI Moulin et al. ( 1997 ) Independent of land cover Sensitive to the weight of the derivative term

Linear segments of NDVI time series Duchemin et al. ( 1999 ) Easy to apply Sensitive to a change in the rate of NDVI

variation

Curvature-change rate for vegetation
indices

Zhang et al. ( 2003 ) For multiple growth cycle Hard to determine the single growth and

senescence periods

Independent of land covers