6C (2024-2024): Listening for sediment transport and river ice dynamics in Arctic Rivers - Year 2

• University of New Mexico

The Arctic region is experiencing accelerated temperature increases, which has been driving increased rates of permafrost thaw and causing changes in the physical and chemical dynamics of Arctic landscapes. One such change is in the timing and magnitude of spring river ice breakup and flooding. It is difficult to observe river ice breakup in remote Alaskan rivers, and even more difficult to collect samples of river bedload and suspended load during ice breakup events. Building on a geophysical dataset collected on the Canning River in summer 2023, we propose to deploy three geophones before river ice breakup and continuously record the signals generated by river ice breakup and river discharge rise in the Canning River, Alaska during April-June 2024. Using the recorded geophone data, we will work to translate the seismic signals into river ice movement, bedload sediment transport, and stage height changes. These data will provide key information on the timing and driving mechanisms of river bank erosion, soil carbon loss, and sediment transport rates in changing Arctic river systems. We are requesting six IGU-16HR 3C Multi Channel Data Loggers. We will deploy three of these nodes along the river in April 2024, return to the field to collect existing nodes and replace with fully charged nodes in May 2024, and return in July 2024 to recover all nodes. Only three nodes will be deployed I the field at any given time.

FDSN Web Services provide a common data access API for seismic data.

Availability based on irisws-fedcatalog service.
Full fedcatalog information for this network