Maximum SSS difference for relaxation (psu); negative to stop relaxing at -val.
-0.5 nearly everywhere; depth_GLBb0.08_08;
 0.5 where 09.0 0010   worst monthly SSS anomaly is < -5.0 or > 9.9
 0.5 where 09.0 0010 minimum monthly SSS is < 10.0
 0.5 where 09.0 0010 maximum monthly SSS is > 41.0
  sssrmx: range =  -0.5 0.5