| Fig. 5-1 |
Calibration concept for SCIAMACHY. The final calibrated Earth radiance spectra are obtained by applying several calibration steps
to the measured Earthshine signals. They include in-flight calibration measurements (red), on-ground measurements performed under
thermal vacuum conditions (green), and component measurements from on-ground ambient tests (blue). The optical performance monitoring
(red) provides addi-tional corrections. (Courtesy: SRON) |
|
| Fig. 5-2 |
Memory effect for channel 3. Yellow crosses mark the in-flight measurement of the memory effect. The blue solid line is a
spline fit through the measurements that is used for the correction. (Courtesy: SRON) |
|
| Fig. 5-3 |
Non-linearity in channel 8 for different pixel regions (indicated by colours). 'Low' pixels are those with pixel numbers below 512.
The pixel numbering starts at 0. (Courtesy: SRON) |
|
| Fig. 5-4 |
q (blue) and u (red) sensitivity from (5-13) for nadir (elevation angle of 61° top) and for limb
(elevation angle of 11.4° and azimuth angle of 39°, bottom) for channels 1-5. Note that these sensitivities
are multiplied with the polarisation fractions to get cpol and the correction will thus be smaller than displayed
for lower polarisation. (Courtesy: SRON) |
|
| Fig. 5-5 |
Definition of the nadir coordinate frame used in the output of the data processor for polarisation values q = Q/I, u = U/I.
(Courtesy: DLR-IMF) |
|
| Fig. 5-6 |
Schematic view of SCIAMACHY light paths used in performance monitoring.
(Courtesy: IUP-IFE, University of Bremen) |
|
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