Out to Erebus Glacier Tongue

The team makes it to Erebus glacier tongue! Plus, the NOVA folks are filming!

THobbs Field Dispatches

In the time since the last post we’ve been busy alternating diving days and days for analyzing data, adjusting, and planning missions. We’ve been able to improve our navigation strategies and better estimate the location uncertainty when we operate in different travel modes (ex: driving the robot manually or letting the vehicle drive itself between waypoints).

All of this work at the Scott Base Shelf Site allows us to start to image the transition between sea ice, where our fish hut sits, and the ice shelf. The thickness between these two units is roughly 3m for the sea ice versus about 25m for the edge of the shelf here. There’s also a big change in the ice provenance – which just means “where it comes from”. Shelf ice is glacial ice, from the continental ice sheet, that has flowed off the continent and over the ocean. It floats, but is…

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