Workflow to produce maps of NDVI anomalies. The images of the time series are imported, the study area is clipped out and temporal smoothing is applied to clean the unreliable values. Next, the Long Term Averages (LTA) are computed for all dekads in the year, and the anomalies are derived as the absolute difference between the actual values and the LTA. Once the map layout is defined (including title and legend), the whole temporal set of maps is automatically produced.