AGU Fall Meeting
09 – 13 December 2017
San Francisco, California, USA
The Hydrogeophysics Technical Committee has an active role in organizing the program of the Hydrology section at the AGU Fall Meeting. We actively propose sessions, and organize the merging of sessions before and after abstract submission. For the 2017 AGU Fall Meeting in New Orleans, the following sessions have been proposed or initiated by members of the Hydrogeophysics Technical Committee:
Landslides are one of the costliest natural hazards worldwide. Recent advances in geophysical techniques are facilitating increasingly detailed studies of landslide subsurface features and processes. Combined with in-situ geotechnical and hydrological sensors, surface and remotely sensed geophysical data are beginning to be integrated into early-warning systems, reducing landslide risk to vulnerable communities, and are employed to inform pro-active remediation measures by elucidating hydrological precursors to failure. This is particularly important as hydrological processes in unstable slopes are known to be highly variable both spatially and temporally. Characterizing and monitoring landslides using geophysical methods still faces challenges, such as accounting for sensor movements and capturing dynamic processes in heterogeneous ground. We invite observational and modelling studies that demonstrate novel geophysical approaches to investigating landslides. We encourage submissions on landslide characterization and monitoring, linking of geophysical data with hydrological/geomechanical modelling, and the integration of geophysical techniques into early-warning systems.
The combined use of geophysical and hydrogeological measurements in groundwater investigations have been shown to improve the predictive accuracy of groundwater models, aid in uncertainty assessment of hydrogeologic parameters, and enhance the monitoring and understanding of hydrogeologic processes. This session solicits research that incorporates geophysical and/or hydrogeological measurements to improve the characterization and monitoring of hydrogeologic parameters and processes. Topics of interest include, but are not limited to: innovative coupled or joint inversion strategies; machine learning strategies to incorporate hydrogeologic process information into geophysical inverse procedures; data errors and uncertainty quantification methods; proxy-modeling strategies; case studies of incorporation of geophysical methods in groundwater investigations.
Properties of the subsurface are governed by interactions among various physical and biogeochemical processes. Applying geophysical and hydrogeological methods can provide valuable subsurface information at a wide range of spatiotemporal scales, substantially improving the characterization of hydrogeological structures, flow and transport, and contamination remediation. This session provides an overview of recent advances and novel approaches for characterizing subsurface properties and dynamic processes using geophysical and hydrogeological methods. We invite submissions on laboratory, field, and numerical modeling studies that incorporate hydrogeophysics and hydrogeology from pore to catchment scales including subsurface imaging, time-lapse monitoring, aquifer characterization, heat and solute tracer experiments, instrumentation development, and numerical simulation.
Terrestrial gravimetry has gained significant importance throughout the last decade for monitoring hydrological and other environmental processes.
Nevertheless, the complete workflow from instrumental operation to interpretation of processed data is complex and requires broad and detailed inter-disciplinary knowledge. The hydrological signal component of gravity is a key example: while hydrologists want to use it for hydrological process understanding and modelling, others need to remove it as noise before further interpretation (e.g., in the fields of volcanology, geodesy, reservoir monitoring in geothermal energy or carbon storage).
This session aims at addressing all applied aspects of terrestrial gravimetry, including but not limited to: innovative gravimeter technologies, instrumental setups, monitoring strategies, data processing, signal separation and environmental interpretation. We want to encourage discussions from different user perspectives to sensitize each other on respective challenges and to ultimately foster trans-disciplinary cooperation towards advanced applications.