Gerard holds an MSc in Applied Mathematics (1987) and a PhD in Environmental Sciences (1993). His PhD research on error propagation in spatial modelling with GIS marks the start of a scientific career in spatial uncertainty analysis, with applications in the soil domain as a main focus. Gerard has also contributed substantially to the development of pedometrics, which is the part of soil science that uses mathematical and statistical methods for the study of the distribution and genesis of soils. He chaired the Pedometrics commission of the International Union of Soil Sciences from 2003 to 2006 and was president of the Netherlands Soil Science Society from 2004 to 2007. He is associate editor of the European Journal of Soil Science and of Spatial Statistics and editorial board member of Geoderma, Environmental and Ecological Statistics, International Journal of Applied Earth Observation and Geoinformation and Geographical Analysis. Gerard also holds a position as Associate Professor in Geostatistics with the Soil Geography and Landscape chairgroup of Wageningen University.
Gerard speaks Dutch and English and some German, French and Polish.