4.0 1.0 c_2mean.nc /meige/19GC-EXP/data/CI2025/COBRA_NC/EXP12/c_2mean.nc z 30 vertical position /z Mean velocity norm /z Mean static pressure /z Mean velocity x /z Mean velocity y /z Mean velocity z /z RMS static pressure /z RMS velocity x /z RMS velocity y /z RMS velocity z /z start time sampling /z end time sampling /z