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Published in:
2010 | OriginalPaper | Chapter
The Operational Processing System for GPS Radio Occultation Data from CHAMP and GRACE
Authors : Torsten Schmidt, Jens Wickert, Grzegorz Michalak
Published in: System Earth via Geodetic-Geophysical Space Techniques
Publisher: Springer Berlin Heidelberg
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Abstract
In this chapter, a description of the CHAMP and GRACE atmospheric processing system for radio occultation data at GFZ Potsdam is given. The generation of radio occultation products, as e.g. atmospheric excess phases and vertical profiles of refractivity or temperature is a complex process. Besides the scientific challenge the design and installation of an automatic data processing system is also of great importance. This system must be able to process the different input data from external data sources, coordinate the different data streams and scientific software modules, and feeds the results into the data center automatically. Caused by different user demands the CHAMP and GRACE Atmospheric Processor is divided into two parts: A near-real time processing mode makes radio occultation analysis results available on average 2 h after measurements. In the standard processing mode quality checked profiles of atmospheric parameters are available with a latency of about 2 days.