I am an Associate Professor in the Department of Natural Resources, Faculty of Geo-information Science and Earth Observation. My research and teaching activities concentrate on the application of satellite image time series for the understanding, mapping, and monitoring of dynamic natural resources. I predominantly analyze changes in agricultural and natural vegetation cover to infer relevant information. This information can then be applied for improved understanding of the effects of environmental change (e.g. climate), or for more efficient natural resource management. Besides a direct focus on societally-relevant applications, I also have a more fundamental interest in assessing the potential of new satellite sensors, particularly those with a high repeat frequency, for monitoring vegetation seasonality at fine spatial scales. My main focus areas include:

1. vegetation phenology, including at fine spatial resolution;
2. agricultural drought monitoring and prediction, for example in the framework of index insurance programs;
3. interaction between livestock and the environment in rangelands.

Before joining the University of Twente in 2009, I obtained two MSc's and a PhD from Wageningen University, the Netherlands. The MSc's were obtained in the fields of 'Tropical Land Use' and 'Geo-information Science' in 2001. My PhD was on the use of satellite data for soil erosion studies, and was completed in 2007. Between 2007 and 2009, I worked at the Joint Research Centre of the European Commission (Ispra, Italy).