SCIAMACHY Level 1b-2 Technical Documents
Since the last release of the Level 1b-2 products we had two updates to version 7.0 (not released) and verion 7.1. The last update was needed to fix
an erroneous trend in the Ozone total columns caused by changes in Level 1. The Level 1 processor was updated to correct the trend. We also added
a stand-alone Level 2 version 6 Ozone Limb profile product, since the version 7.1 shows long term oscillations in bias and drift. These are not observed
in version 6. For trend analysis of Limb Ozone profiles we recommend to use the version 6 data.
The documents on this page are the basis for the implementation of the Level 1b-2 processor. The latest version of the processor is version 7.1.
The ATBD describes the used algorithms on a high level. It also contains
some information about the data format. It is the best document to get an overview over the processor and the theoretical basis of the retrievals. An overview of
the products is given in
this table.
The Product User Guide describes the data format of the Level 2 product. It can be used to write own software to read the data.
The Veriffication Reports report on the results of the comparison between the reference implementation (the software developed by the different institutes) and the
operational implementation. It does not substitute a validation, since in the verification only the technical correctness of the implementation is checked on a relatively
small data set. The accuracy of the retrieved physical quantities are checked in an independent validation.
Below pdf versions of the document are linked:
- Algorithm Description (ATBD, 3.8 MB): Lichtenberg, G., Bovensmann, H., Van Roozendael, M.,
Doicu, A., Eichmann, K.-U., Hess, M., Hrechanyy, S., Kokhanovsky, A., Lerot, C., Noêl, S., Richter, A., Rozanov, A., Schreier, F. and Tilstra, L.G.
2018. SCIAMACHY Offline Level 1b-2 Processor V.7/7.1 ATBD (ENV-ATB-QWG-SCIA-0085, issue 3)
- Product User Guide Level 2 (netCDF Format):
Lichtenberg, G., 2019. SCIAMACHY Level 2 netCDF Product User Guide, issue 1 (ENV-IODD-DLR-SCIA-0137)
- Product User Guide Level 2 Standalone Limb O3 V6 (netCDF Format):
Lichtenberg, G., 2024. SCIAMACHY Level 2 netCDF Product User Guide Limb O2, issue 1 (FDR4ATA-PUG-DLR-0011)
- Data Format Description (IODD, ENVISAT Format, deprecated 4 MB): Meringer, M., Lichtenberg, G.
2010. SCIAMACHY Level 1b to 2 Off-line Processing: Input/Output Data Definition (ENV-ID-DLR-SCI-2200-4, issue 5A)
- Verification Report (10.9 MB):
SQWG, 2018. Verification Report OL V 7.0 (ENV-VPR-QWG-SCIA-0095, Issue 3)