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| Titel |
Quality Aspects of the WEGC Multi-Satellite GPS Radio Occultation Record |
| VerfasserIn |
Barbara Angerer, Florian Ladstädter, Barbara Scherllin-Pirscher, Marc Schwärz, Andrea K. Steiner |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250150774
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| Publikation (Nr.) |
 EGU/EGU2017-15273.pdf |
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| Zusammenfassung |
| GPS Radio Occultation (RO) is a limb sounding satellite technique providing thermodynamic
atmospheric parameters since 2001. Its properties include high vertical resolution, global
coverage, and high quality within the upper troposphere to the mid stratosphere. Data from
different GPS RO missions can be combined to a single dataset, if processed in a consistent
way. The Wegener Center provides such a multi-satellite dataset combining data from
CHAMP, SAC-C, CNOFS, the COSMIC satellites, MetOp-A/B, and GRACE (WEGC
OPSv5.6).
For climate applications, data consistency and quality are essential. Specifically for a
combined multi-satellite record such as GPS RO, with several satellites providing
data for the same time period, quality control and consistency checks need to be
conducted. Information about distinct quality characteristics of the various satellite
instruments is important for producing a homogeneous long-term multi-satellite data
record.
A systematic analysis of the quality aspects has been performed on the recent WEGC RO
processing version OPSv5.6. It comprises a review of the technical consistency of the input
data as well as plausibility checks on the resulting thermodynamic atmospheric parameters.
The applied quality control helps to identify atmospheric profiles with reduced data quality.
Thereby, the adequacy of the datasets for climate applications can be assured and its maturity
enhanced. |
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