Expand atmospheric extinction hypercube: Atmospheric calibration main method

CalibPipe produces an atmospheric extinction hypercube.

This first part of the main scenario can be described in more detail:

The FRAM-generated Voronoi-tesselated transmission maps are interpolated in time.
Interlaced Raman LIDAR measurements serve to:
divide the interpolated AODs in vertical bins
re-calibrate its integral and
calculate the wavelength dependency.
These “aerosol transmission hypercubes” (with altitude, wavelength and time as additional dimensions) are then split into a slow component (due to quasi-stable aerosol layers, like the boundary layer), and a fast one, which changes throughout a typical OB. Criteria for the determination of what is considered "sufficiently fast" across the OB shall always come from the magnitude of the systematic error introduced, compared to the error budget for aerosol extinction. (There will soon come a separate requirement on this part).
Historical information from aerosol characterization campaigns and later on the DB of previous LIDAR and FRAM observations can help to produce the transmission hypercubes and the identification of their components.
Apart from the (fast- and slow-motion) extinction hypercubes, their (statistical- and systematic) uncertainties are provided and alternative (mock) solutions for cases of (LIDAR or FRAM) data gaps or inconsistent results.
CTC shall be used:
- for cross-checks and
- as alternative in case of data gaps.