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GOCE User Toolbox Specification (GUTS) - System Specification and Architectural Design

Keith Haines(1) and Daniel Bretherton(1)

(1) Reading University, Harry Pitt Building, 3 Earley Gate, Reading, RG6 6AL, United Kingdom


The GUTS project has been inter-comparing algorithms for translation of GOCE HPF data for use in the fields of oceanography and solid Earth science. The system specification and architectural design for GUTS include the following information:

* Design of all user interfaces and description of file formats for input and output. * Design of the logical model of the software functionality. * Complete specification of output, including data products, reports and logs.

Within this project the designs and specifications are limited to a logical description of the toolbox architecture and data flow, and do not include software design details. The purpose is to provide the link between scientists in the toolbox design team and the software engineers who will implement the toolbox.

The toolbox will be composed of a collection of executable tools, sets of auxiliary data and a programming interface, with dedicated plug-in points to allow for easy integration of new algorithms, new data and the GOCE HPF product files. The architecture of the toolbox will allow any user to substitute their own auxiliary data or to integrate extra modules to extend the toolbox for individual applications. The ancillary data will include Mean Sea Surface Height data from altimetry and Dynamic Topography data from models or other oceanographic measurements, as well as a priori non-GOCE geoid information. Good documentation will be necessary in order to facilitate communication between the various user communities. The software will be developed on an Open Source basis, to allow the flexible use and development of the toolbox by the science community.

This paper will present the current design plans for the Toolbox, the final version of which is due to be delivered at the end of 2006.


Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry