My research in recent years has been motivated by the need for a comprehensive understanding of the sources, scope, and impact of Arctic-system change, with a focus on terrestrial hydrology. While Arctic hydrology represents the core of my research program, my interests are broad and interdisciplinary, and center on advancing understanding of the earth’s climate system at local, regional, and global scales. I have published studies on future climate changes across the Northeast US and North America, the land-atmosphere fluxes of CO₂ across Northern Eurasia, and the recent and projected future acceleration or “intensification” of the Arctic’s freshwater cycle. For the latter two topics I led two large international teams of researchers in studies which culminated in peer-reviewed journal articles published in 2015 and 2010, respectively. My research in recent years has centered  on improving knowledge of the myriad impacts of hydrological cycle intensification and permafrost thaw on the mobilization and transport of carbon and other constituents by arctic river systems. See my publications page for a complete list of journal articles.

Consistent with my research interests I have served in recent years on several science teams that were tasked with and completed comprehensive reports that are severing as guides for ongoing and anticipated future research activities. The science teams include the organizing team for Synthesis Studies of the Pan-Arctic/Earth System; the Science Definition Team, which produced the implementation plan for NASA’s Arctic Boreal Vulnerability Experiment (ABoVE) ; and the scoping study team for the NASA  Arctic-COLORS (Arctic-COastal Land Ocean inteRactions).

See my Research Interests page for additional information.