Prof. Ir. Nick van de Giesen is co-founder of the Trans-African Hydro-Meteorological Observatory (TAHMO) and Professor at the Delft University of Technology’s Faculty of Civil Engineering where he holds the chair of Water Resources Management. He supports the team in technical backstopping especially in data assimilation and Numerical Weather Modeling. Furthermore he supports the team in creating external linkages and acts as the quality manager for the technical equipment, installations and development of weather and water data based decision support systems. He has over 25 years work experience in Africa, Europe and Asia.