mean:
  pressure: -1.4152298706058212e-09
  tracer: 0.0013292479911702548
  velocity:
  - 0.0013292517486923389
  - -4.2350456358374834e-08
std:
  pressure: 0.06958756415641779
  tracer: 0.28687319264671435
  velocity:
  - 0.40519031562096375
  - 0.09419837038341107