The Victoria Land Coastal Current is a supercooled plume of
Ice Shelf Water from the Ross Ice Shelf, which has provided a natural
laboratory for understanding ice-ocean interactions and connections between
ice shelf and sea ice regimes. This talk will cover results from
observational field campaigns both on the sea ice of McMurdo Sound and from
several sites beneath the Ross Ice Shelf conducted over the past
decade. Some of the features highlighted will include amplified boundary
roughness generated by thick accumulations of platelet ice crystals; dynamic
quenching of supercooling in a multi-phase flow; and unexpected ocean
structure and variability deep within the Ross Ice Shelf ocean
cavity. Oceanic connectivity between the Ross Sea shelf, the sub-ice shelf
cavity and the grounding zone provides necessary context for the
smaller-scale process studies. This is also creating opportunities for new
interdisciplinary research with implications for ice dynamics and ice sheet
evolution.
Dr. Natalie Robinson is an observational marine physicist, specializing in Antarctic oceanography and ice-ocean interactions, with New Zealand's National Institute for Water and Atmospheric Research (NIWA). Her work ranges in scale from regional-wide circulation patterns and inter-annual variability to small-scale processes at ice-ocean interfaces. She has led multiple on-ice observational campaigns through the New Zealand Antarctic Programme and currently leads NIWA's research into Antarctic and High Latitude Climate. Her work has contributed to understanding the oceanic connections between sea ice and ice shelf regimes, and she is co-PI on the New Zealand Antarctic Science Platform's project on Sea Ice and Carbon Cycle Feedbacks. She is passionate about making science accessible to everyone and frequently participates in outreach and engagement activities across a variety of platforms.
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