In an increasingly warm, wet, and ice-free Arctic, one of the most pressing unknowns today is the future response of the region's large terrestrial ice masses - include the Greenland Ice Sheet - whose ongoing demise is now supplying the majority of global sea-level rise. This project will provide the first clear picture of how enhanced Arctic precipitation is driven by sea ice loss, whether it falls as rain or snow, and how it affects the health and response of High Arctic ice masses. This will be implemented using state-of-the-art hydrochemical tracing combined with detailed field data measurements. Addressing this question will advance current modelling approaches and our confidence in them to forecast future ice loss that, in turn, has marked societal relevance associated with downstream environments, global sea-level rise, and climate circulation systems.

2022

2026