'Modelling our world' is a comprehensive guide and reference to GIS data modelling in general, and to the geodatabase model in particular. It shows how to make the right decisions about modelling data-decisions that will inform each aspect of a GIS project, from database design and data capture to spartialanalysis and visual presentation

Earth Water Ltd was commissioned by Adventist Development and Relief Agency (ADRA) Somalia to Carry out pre-feasibility geophysical and hydro geological investigations to determine the presence of an aquifer in the surroundings of Garowe town in the Nugal region of the Puntland State of North Eastern Somalia. The investigations were executed in a multi-step approach: I) Desk study 2) Field reconnaissance study 3) Data acquisition 4) Data analysis and reporting The Client requires detailed information on the availability of groundwater resources to be used for the development of a central water supply for Garowe town. The projected water demand for domestic consumption is in the order of 800 m3 /day. The objective of the present study is to assess the available groundwater, to recommend the best possible sites for further detailed investigations to develop a centralized weilfield for drilling of several boreholes, the required depth, expected yield and water quality. For this purpose all the available hydro geological information of the area has been analyzed and a geophysical survey carried out.