SPIRITS is an integrated and flexible free software environment for analyzing satellite derived image time series in crop and vegetation monitoring. With this toolbox, you can process and examine time series of low and medium resolution sensors such as SPOT-Vegetation and MODIS-Terra/Aqua. It can be used to perform and to automatize many spatial and temporal processing steps on time series and to extract spatially aggregated statistics. Vegetation indices and their anomalies can be rapidly mapped and statistics can be plotted and interpreted in seasonal graphs to be shared with analysts and decision makers.
See the QUICK START in the Tutorial (section 2) to get started!