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DIGISONDE-4D
SYSTEM MANUAL
VERSION 1.2.11
SECTION 5 - SYSTEM SOFTWARE 5-15
Figure 5-4: Block Diagram of DCART Software
5:19. The Interface Control Document (ICD) for Command and Telemetry (C&T) traffic between DCART
and DESC software components of Digisonde-4D is detailed in Annex A. Further details on the DCART sci-
ence data processing and examples of the real-time displays can be found in the Section 3, Chapter 2 of the
Manual.
DISPATCHER
5:20. Dispatcher component of the DATA Platform is responsible for arranging generation of derived data
products (scaled characteristics, directograms, skymaps, drift velocities, ionospheric tilts, MUF tables), WWW
publishing and data dissemination to remote servers, and all associated file management. Dispatcher routes in-
coming files from DCART to appropriate post-processing software components, collects their data products,
spawns picture-making tools for the WWW pages, prepares daily data files, manages secure and public sectors
of local storage, arranges data delivery over the Internet by calling FTP and SFTP clients, and sends appropriate
control data to DCART. Figure 5-4 shows a block diagram of data routes within the DATA Platform.
5:21. The DATA Platform maintains two types of local data archives, (1) short-term archive holding selected
raw and derived data for 7-10 days (or more); and (2) long-term archive storing daily files for a prolonged peri-
od of time (years).
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