Jeff Welker

Exploring the impact of Arctic ecological processes and biogeochemical cycles, Jeff Welker serves as the UArctic Research Chair and Professor of Arctic Ecology and Biogeochemistry at the University of Colorado Boulder. With a distinguished career spanning multiple institutions, including the University of Alaska Anchorage and the University of Oulu, Professor Welker is renowned for his contributions to understanding the intricate dynamics of the Arctic environment. Professor Welker's research primarily focuses on the biogeochemical processes that govern the Arctic's unique ecosystems. He leads a dedicated research team that is part of the Biogeochemistry team, delving into the complexities of moisture source processes and isotopic fractionation within, into, and out of the Arctic region. His work is pivotal in unraveling the interactions between atmospheric, terrestrial, and aquatic systems in this rapidly changing environment. A key component of Professor Welker's research is the Arctic Water Isotope Network (AWIN), an innovative approach that integrates land-based station measurements with data collected aboard the Polarstern, a research vessel. This network enables his team to track Arctic water isotope processes in near real-time, providing valuable insights into the hydrological and climatic changes occurring in the Arctic. Through his participation in the MOSAiC expedition remotely, Professor Welker continues to contribute to the global understanding of Arctic ecology and biogeochemistry. His work not only advances scientific knowledge but also informs policy and conservation efforts aimed at preserving the fragile Arctic environment. His dedication to research and education has made him a leading figure in the field, inspiring the next generation of scientists to explore the wonders of the Arctic.