ASI-SRV general purpose modules for the preprocessing of remote sensed optical data

The Project called Sistema Rischio Vulcanico (SRV) is funded by the Italian Space Agency (ASI) in the frame of the National Space Plan 2003-2005 under the Earth Observations section for natural risks management. The SRV Project is coordinated by the Istituto Nazionale di Geofisica e Vulcanologia (INGV) which is responsible at national level for the volcanic monitoring. The project philosophy is to implement, by incremental versions, specific modules which allow to process, store and visualize through Web GIS tools This document presents the modules developed for the preprocessing of Earth Observation (EO) data. These modules concern the automatic calibration, georeferencing, mosaiking, atmospheric and topographic correction. These ¿general purpose¿(GP) module allow to publish the EO added value derived data by means of dedicated webGis interface.