Chapter 6 outlines the development work which was carried out with AVTIS-2 and AVTIS-3, two terrain mapping radars designed for monitoring the changing topography of volcanoes. A significant increase in processing throughput was achieved by implementing processing routines based upon the work developed with NIRAD and IRAD, allowing radar processing to occur in real-time.
A scan scheduling feature was developed which allows a number of different scan parameters to be set and executed in sequence. Automated transfer of ac- quired data to a remote computer was implemented as a separate process from the main radar control soware. Files are copied to a standard Windows network share and the integrity of the transferred data is verified before the local copy is removed. Resumption of partially completed transfers was implemented, and transfer is reaempted in event of corruption. I was involved in the deployment of AVTIS-3 to a remote location situated 3 km from the Soufrière Hills volcano on the Caribbean island of Montserrat. During this fieldwork, a complete digital elevation map of the lava dome was obtained from 4 distinct survey sites.
It is hoped that AVTIS-3 will provide valuable monitoring capabilities in the event of renewed activity of Soufrière Hills.
Chapter 8
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