Much of my research is centered around cosmic-ray neutrons and applied cosmic-ray physics. My goal is to achieve a full understanding of cosmogenic isotopes and cosmic-ray neutrons, and my methods include field and laboratory measurements, modeling and theoretical work. The work on measuring and modeling of cosmic-ray neutrons started in the context of cosmogenic dating of landforms and later lead to the development of a new way of measuring surface moisture. This direction of research has proven to be very productive and successful, and cosmic-ray hydrometrology (as we named this new field of science) has become one of my main fields of interest.