Hydrogeodesy provides critical insights into how human activities interact with the hydrosphere across a range of spatio-temporal scales. Since they are sensitive to total water storage, geodetic methods reveal hydrologic fluctuations both above and below the surface, illuminating links to anthropogenic processes. As hydrologic hazards from anthropogenic and climatic origin increasingly impact water resource availability, infrastructure, and the environment, geodetic observations enable the characterization of reservoirs, mass changes, separation of permanent from transient deformation, and even mapping flooding extent. This session invites contributions that leverage geodetic data (e.g., GNSS, InSAR, SWOT, gravimetry) to examine human-hydrosphere interactions at local to regional scales. We welcome studies that use geodetic tools to quantify human impacts on the hydrologic system, examine the hydrologic hazards' impact on human populations, water resources, or infrastructure, studies that present techniques to separate anthropogenic and natural signals, and approaches for integrating geodetic observations into sustainable water resource management.

• H - Hydrology