Underneath Antarctica's vast ice sheets there's a network of rivers and lakes. This is possible because of the insulating blanket of ice above, the flow of heat from within the Earth, and the small amount of heat generated as the ice deforms.
has been hard on national Antarctic programs and the field science they support. Global supply and freight delays kept our team on the edge in the lead-up to our season.of its main Antarctic station, Scott Base, and has been developing an over-snow traverse to deploy large teams across great distances. Our Kamb team was one of the first to benefit from this new capability, with a camp operating for months, more than 900km from New Zealand's permanent station..
Once on site, the team was able to drill through 500m of the ice shelf and keep a 0.4m-diameter hole open for nearly two weeks. This allowed us to take samples and gather observations for a diverse range of science projects.Almost a decade of research paid off when the team pinpointed the exact spot to drill to hit the onset of the narrow river beneath.
Working from a borehole means we can only look in one spot. As an antidote to this limitation, colleagues from Cornell University deployed their ocean robot Icefin to study the space below the ice.One of the discoveries that will keep the team going for some time is a dense community of likely amphipods, which we spotted when we lowered cameras to the seafloor. The swarm was so dense, we first thought there was something wrong with our equipment.
The last task the team completed was to deploy an ocean mooring beneath the ice. These instruments will continue to report back on ocean conditions over the coming years.Hunga Tonga-Hunga Ha'apai volcanic eruptionApart from baseline observations, such discoveries provide strong motivation for deploying long-term monitoring equipment. The team will be watching closely over the coming years for any changes in the under-ice river flow, including flood events.
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