Hydrologic processes of fine particles (i.e. particulate organic carbon and fine sediment) and microbes; Groundwater-surface water interactions; Multi-scale computational modeling methods; Fine particle and microbial tracer experiments; Microbial ecology; Biogeochemical processes.

My research focuses on the underlying mechanisms that control water, microbial, and fine particle (i.e. POC and fine sediment) transport and retention within freshwater systems to improve stream ecosystem functioning and assess microbial risk within agricultural and urban systems. Through a combined experimental (lab and field) and computational approach I investigate the controlling factors at multiple scales for key environmental processes such as carbon and nutrient (i.e. nitrogen and phosphorus) cycling in both their dissolved and particulate forms, disease transmission via waterways, and stream ecosystem health due to microbial, carbon and nutrient point and non-point source inputs.