The topics of this workshop include groundwater modelling in arid areas, the application of stochastic groundwater modelling in arid areas, isotope techniques in groundwater research in arid areas, and the interaction of surface water and groundwater and the modelling in arid areas.

UNESCO: Water Portal | Water Events Worldwide

Most of the 20-year-old satellite should simply have burnt up on re-entry into the Earth's atmosphere, but modelling work indicated perhaps 500kg could have survived to the surface.

BBC: Nasa's UARS satellite falls off west coast of US