The whole ice cream van

When we took apart the first seismic tube to extract the popsicle it became apparent that despite the amazing job done extending the tubes, they couldn’t stand up to the melting and freezing of Antarctica and the seal had popped. With one down and two to go, I was surprisingly still a little hopeful (but not very) that the other two tubes might just have survived. Lessons learnt from the first extraction included… however many tools we tried, it took time and once extracted a seismometer in a concrete based tube full ice is a little bit heavy. Just in case the other other tubes were in a similar state Marty and Ian engaged the amazing skills of Col and overnight the Col Ford Tripod winch was born! ¬†At the second site, a small crack in the ice revealed the pathway of the cables and very quickly we could see the top of the tube. First impressions, this one also looked intact and surprisingly upright but as they say a picture speaks a thousand words, so here are a few to show the rest of the day… And yes we did end up back in the brewery defrosting another popsicle!

 

Marty and Ian keeping a watchful eye on our exert steam driller (who is also pretty good at flying a helicopter).
The top of the tube is spotted though a small crack
A couple of hours later the small crack is a large hole but the tube is still firmly encased in the ice.
The hole gets slowly bigger.. Photo Hayden Anderson
and bigger
Introducing the Col Ford Seismic Extraction Tripod (patent pending ;-)) skilfully demonstrated by Hayden and Ian.
Trying to extract seismometers from the ice is full of ups and downs
Marty attaches the line for Hayden to sling our latest seismic popsicle back to station for defrosting.
Away they go
Back to the brewery again!

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