[HN Gopher] South Pole Topography ___________________________________________________________________ South Pole Topography Author : afrcnc Score : 126 points Date : 2023-02-05 14:31 UTC (8 hours ago) (HTM) web link (brr.fyi) (TXT) w3m dump (brr.fyi) | [deleted] | cozzyd wrote: | The drifting at south pole is rather benign compared to places | like Summit Station Greenland. My experiments in Greenland get | buried twice as fast as the ones at Pole :) | metadat wrote: | How about a building which rests on screw-like pillars which sit | in a motorized shaft, with the pillar extending from the | structure down into the ground. | | The tops of the pillars would be accessible from inside the | building. | | When you want the building "height" to increase, you install | another notch to each pillar and set the system to climb it's way | up (or even down) a notch. | | Such a structure would be "drift" proof. | .______________________. | | | | | | | | |_.____._.____._.____._| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Is this the concept alluded to but not addressed directly in TFA? | A quick web search didn't turn up any information for me. | ttepasse wrote: | The 3rd south pole station is designed for hydraulically | jacking up those pillars and installing height: | | https://www.southpolestation.com/foundationdesign.html | | https://www.nsf.gov/news/special_reports/livingsouthpole/new... | | It's the current trend for antarctic architecture, also seen in | the German Von Neumayer III and the British Halley VI stations. | | https://en.wikipedia.org/wiki/Neumayer-Station_III | | https://en.wikipedia.org/wiki/Halley_Research_Station | [deleted] | Amorymeltzer wrote: | Discussion from last week, four comments: | https://news.ycombinator.com/item?id=34549893 | dang wrote: | Thanks! I've merged those comments hither (and relativized | their timestamps to the current submission). | ttepasse wrote: | As the poster of one of those comments I was rather irritated | by the adjusted datestamp and doubted my own memory. Has | there ever been discussion for the HN software to enable more | metadata for moved comments, like "10 days (older thread)" or | such? | [deleted] | consumer451 wrote: | I've been enjoying this blog. I just ran across a link to the | McMurdo webcams. It looks lovely today. | | https://www.usap.gov/videoclipsandmaps/mcmwebcam.cfm | navanchauhan wrote: | I read the entire article and was waiting for them to talk about | fonts before I realised it's about Topography, and not Typography | njitram wrote: | What I wonder, after reading this, is what happens with all that | snow that is accumulating and causing all the buildings to be | burried? Is the South Pole slowly rising? Or is snow at the | bottom somehow dissipating? | LargoLasskhyfv wrote: | It slowly turns to ice, compressed by its own weight. | | Thereby enabling us to get | https://en.wikipedia.org/wiki/Ice_core and analyse the layers | like tree rings, err... | https://en.wikipedia.org/wiki/Dendrochronology | fpoling wrote: | It accumulates on top, turns into ice, but the bottom layers of | the ice very gradually flow (tenth of thousandth of years) | toward the see. Modeling that precisely is hard and we do not | know if Antarctic as the whole gains ice or looses it. | jcranmer wrote: | My current understanding of the numbers is that the East | Antarctic Ice Sheet (which includes the South Pole) is in | positive ice mass balance, while the West Antarctic Ice Sheet | is losing ice mass and is in or near a complete collapse | scenario. It seems that the eastern sheet isn't gaining | enough mass to offset the loss of the western sheet, but | every study seems to contradict the previous study so... | :shrug: | olddustytrail wrote: | That depends who you mean by "we", but for people who follow | this stuff the GRACE measurements are pretty clear. | jcranmer wrote: | In short: they become glaciers. The snow gets compacted into | ice, which then slowly moves as a glacier (motion is highest at | the base, I think) until it eventually reaches the glacial | margin. ___________________________________________________________________ (page generated 2023-02-05 23:00 UTC)