Cold regions are changing due to warming air, water, and ground temperatures. Monitoring hydrological processes in these regions can reveal cryosphere change and help understand subsequent impacts on water availability, biogeochemical cycles, and aquatic ecosystems. For example, temporal shifts in Arctic river hydrographs have been attributed to changing runoff contributions from rain, snow, glaciers, and aufeis, and increasing hydrologic connectivity with permafrost thaw and talik development. Observing change is challenged by the logistics of obtaining continuous, broad-scale measurements in remote regions. This session aims to bring together the hydrology and cryosphere communities to explore novel tools, approaches, and indicators of change to infer hydrologic processes and better understand climate-driven impacts on water systems across geographical and temporal scales. We welcome contributions that utilize field data, remote sensing, and emerging data analysis techniques and technologies to observe changing hydrologic processes in cold regions where direct, continuous measurements are difficult.

• C - Cryosphere