G.W.H. (Gijs) Simons is a hydrologist with over five years of working experience in managing and executing international projects in the fields of water resource management and remote sensing. He received his training mainly at Utrecht University, with a BSc. degree in Physical Geography and an MSc. degree in Hydrology. Countries of work experience include Egypt, Ethiopia, Sudan, Mali, Morocco, the USA and Vietnam (the latter two as a resident). Technical activities include hydrological modeling, satellite image processing and interpretation, and GIS analysis using a variety of tools (eg. SPHY, ArcGIS, ERDAS Imagine, Quantum GIS, PCRaster, Python, R, MODFLOW, SEBAL), both at the level of a single field and an entire river basin. Most studies included a training component in using hydrological models, remote sensing and GIS for quantitative and spatial analysis of water management. Gijs is also a PhD candidate at Delft University of Technology, focusing on the mapping of water reuse by different water users within a river basin.