Composite
 
Syntax (known values):
Field
GRID (value) (value) (value) (value) VALUES 
[GRID]average
Syntax (based on timeseries):
Field
Timeseries Mask
0.0 mul
add 
[T]average
Example:
  
Temperature anomaly composite of March-May high precipitation El Nino Years 
Monthly surface pressure anomalies in El Nino Years
 
Troubleshooting:
  
See masking page for timeseries masking options.