  z[m] p[mb] tp[K] q[g/kg] u[m/s] v[m/s]  
0.     3  1000.
0.      -999.  300.  1.  0.  0.
1350.   -999.  300.  1.  0.  0.
4350.   -999.  309.  0.  0.  0.
10.     3  1000.
0.      -999.  300.  1.  0.  0.
1350.   -999.  300.  1.  0.  0.
4350.   -999.  309.  0.  0.  0.
