read_msevi

nawdex_analysis.io.input_obs.read_msevi(t1, t2, dt=60.0, zen_max=75.0)

Reads a time stack of MSG SEVIRI infrared channels.

Parameters:
  • t1 (datetime object) – start time in the loop
  • t2 (datetime object) – end time in the loop (included, i.e. t1 <= time <= t2)
  • dt (float, optional) – time step in minutes
  • zen_max (float, optional) –

    maximum satellite zenith angle

    higher zenith angle are set to invalid
Returns:

d – datastack containing

  • infrared BTs stacked in time (i.e. 3d fields, time at axis = 0)
  • georeference
  • meta data
Return type:

dict

Notes

It heavily uses the MSevi class from tropy.l15_msevi.msevi. If you don’t have tropy installed, this function can not be used.