Separate run-wise simulation case from use of pre-calculated IRFs: Atmospheric calibration main method
Summary
From my point-of-view, the Use Case: "Atmospheric calibration main method" should be split into two:
- Case of run-wise simulations
- Case of pre-calculated IRFs
Currently, both a kind of mixed in the current Use Case, however, I understood that the SDMC will decide beforehand to use one or the other scheme, according to the importance of the science case and the available funding for run-wise simulations.
-
In the case of run-wise simulations, CalibPipe will need to provide an average aerosol transmission profile (including wavelength-dependency and, if necessary, field-of-view coordinates) for each GTI simulated. That transmission profile shall be calculated as the median transmission from each height bin, with the median calculated over the time range of the given GTI.
-
In the case of pre-calculated IRFs, CalibPipe will better interpolate IRFs simulated with the next-closest cases of clouds (separated in median altitude and optical depth, but not thickness of the cloud) and the ground-layer (separated in height of the ground-layer and aerosol optical depth, but not internal structure of the ground layer).
-
For the clear-night case, a separate Use Case is anyhow necessary (see Issue #47 (closed)).
Please note that the systematic uncertainties (which shall be propagated in all cases) are different, too, between the three cases.