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Author Topic: Svalbard Permafrost Warming  (Read 1359 times)

Csnavywx

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Svalbard Permafrost Warming
« on: August 26, 2017, 05:02:03 PM »
https://twitter.com/ketil_isaksen/status/823788018213552128

https://twitter.com/Ketil_Isaksen/status/872738582041112577

The trend suggests about 20 years until mass deep destabilization and emission occurs. The big thing in Svalbard has been the loss of sea ice around its coasts for extended periods and a sharp rise in average annual air temperature, similar to what's been happening across the peripheral Arctic shoreline. Once 1-10m temps reach 0C, the active layer will rapidly deepen every year, leaving a lot of extra time every winter for microbial action to break down the previously trapped carbon.

solartim27

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Re: Svalbard Permafrost Warming
« Reply #1 on: February 19, 2018, 08:43:35 PM »
FNORD

Shared Humanity

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Re: Svalbard Permafrost Warming
« Reply #2 on: February 19, 2018, 09:03:00 PM »
Anyone else notice that virtually all of the data that is being measured and charted on this wonderful blog shows a disturbing acceleration in the trends. Not content to race towards an unmitigated disaster, we've decided to bury the pedal and accelerate.

We can only assume that permafrost temps are rising wherever we see average surface temperatures rising. This is not just a Svalbard phenomena.
« Last Edit: February 19, 2018, 09:11:21 PM by Shared Humanity »

Martin Gisser

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Re: Svalbard Permafrost Warming
« Reply #3 on: February 19, 2018, 10:05:34 PM »
There's also a nice animation: https://twitter.com/ketil_isaksen/status/823788018213552128
(Seems to be Twitterish tech that can't be extracted)

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I bet I'm not the first one to worry about the Svalbard Global Seed Vault...

https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault
Quote
Locally mined coal provides power for refrigeration units that further cool the seeds to the internationally recommended standard of −18 °C (−0.4 °F).[24] If the equipment fails, at least several weeks will elapse before the facility rises to the surrounding sandstone bedrock's temperature of −3 °C (27 °F),[4] and is estimated to take two centuries to warm to 0 °C (32 °F).[25]

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[4] Science Vol. 312 (2006)
[25] http://www.economist.com/node/21549931
Are we still sure about these 2 centuries?

The entrance tunnel already had to be modified after flooding from molten permafrost. The storage chambers seem to be safe from that.

https://www.theguardian.com/environment/2017/may/19/arctic-stronghold-of-worlds-seeds-flooded-after-permafrost-melts
https://www.theguardian.com/environment/2017/jun/13/multi-million-dollar-upgrade-planned-to-secure-failsafe-arctic-seed-vault
« Last Edit: February 19, 2018, 10:27:31 PM by Martin Gisser »
"The universe is irrelevant for all practical purposes, so better forget about being thrown into it." --Florifulgurator

oren

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Re: Svalbard Permafrost Warming
« Reply #4 on: February 20, 2018, 04:57:24 AM »
There's also a nice animation: https://twitter.com/ketil_isaksen/status/823788018213552128
(Seems to be Twitterish tech that can't be extracted)
Scary, especially the last frame (2016).