A global evaluation of this system is underway through comparison with various field databases, web sites
and news reports of landslide disasters. The need for retrospective validation and improvement of this
preliminary system requires continued collection of global landslide data. The prototype of this system can
be enhanced by providing improved satellite remote sensing products and by updating the geospatial
database as more relevant information becomes available. Specifically, the land cover data should be
routinely updated because they are subject to change by human activity. Several future activities are under
consideration: