[HN Gopher] South Pole Topography
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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.
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|
| 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.
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(page generated 2023-02-05 23:00 UTC)