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Unique Canadian ice core collection suffers catastrophic meltdown

11 points by fraqed 9y ago

Nzen 9y ago
tl;dr University of Alberta's Edmonton cold storage facility suffered a freezer unit failure. This melted 180 ice cores, 13% of the whole collection. Each may cost 5e5-1e6 dollars to replace.
- PhantomGremlin 9y ago
  Yeah, basically some sort of amateur hour effort to preserve between $90 million and $180 million of cores. I wonder how much it would have cost to do it right? Edit: of course I'm being naive, and hindsight is always wonderful, but the total cost for a backup would be perhaps $100k/year? Take 5 minimum wage, no benefit people. Some of these might be called "retirees". You need 5 to cover the 168 hours in a week. Or maybe you employ some starving "students", of which there is a nearly infinite supply nearby. Sit one down in a chair. Tell him, "sit here, read books, surf the internet. Every 5 minutes look up and see what the temperature is. If it's higher than -35, call this list of people". Seriously, I wonder why we don't take more advantage of humans in situations like this. In years past it was often routine to have humans present 24/7 at critical sites.
  - slv77 9y ago
    My experience is that people don't do well when asked to monitor systems that rarely change for rare events. It doesn't matter how strongly you impress upon them the importance of the work or how much potential reward you dangle in front of them the monkey part of their brain will pull them from the task. This is a common enough problem that it's a well understood factor in systems failures and has been extensively explored in literature with airline pilots, nuclear technicians and TSA X-Ray techs as human factor in engineering.
zkms 9y ago
> The storage facility is normally chilled to –37°C. But the equipment failure allowed temperatures to rise to 40°C, https://www.ualberta.ca/news-and-events/newsarticles/2017/april/freezer-failure-results-in-damage-to-ice-core-collection https://www.ualberta.ca/news-and-events/newsarticles/2017/ap... There's more details about the causes of the failure at that URL: > the refrigeration chillers shut down due to “high head pressure” conditions. Essentially, the chillers were not able to reject their heat through the condenser water system—heat instead of cold circulated through the freezer. > Compounding matters, the system monitoring the freezer temperatures failed due to a database corruption. The freezer’s computer system was actually sending out alarm signals that the temperature was rising, but those signals never made it to the university’s service provider or the on-campus control centre.
architect 9y ago
Totally not sabotage... :/

11 points by fraqed 9y ago

Nzen 9y ago

tl;dr University of Alberta's Edmonton cold storage facility suffered a freezer unit failure. This melted 180 ice cores, 13% of the whole collection. Each may cost 5e5-1e6 dollars to replace.

PhantomGremlin 9y ago
Yeah, basically some sort of amateur hour effort to preserve between $90 million and $180 million of cores. I wonder how much it would have cost to do it right? Edit: of course I'm being naive, and hindsight is always wonderful, but the total cost for a backup would be perhaps $100k/year? Take 5 minimum wage, no benefit people. Some of these might be called "retirees". You need 5 to cover the 168 hours in a week. Or maybe you employ some starving "students", of which there is a nearly infinite supply nearby. Sit one down in a chair. Tell him, "sit here, read books, surf the internet. Every 5 minutes look up and see what the temperature is. If it's higher than -35, call this list of people". Seriously, I wonder why we don't take more advantage of humans in situations like this. In years past it was often routine to have humans present 24/7 at critical sites.
- slv77 9y ago
  My experience is that people don't do well when asked to monitor systems that rarely change for rare events. It doesn't matter how strongly you impress upon them the importance of the work or how much potential reward you dangle in front of them the monkey part of their brain will pull them from the task. This is a common enough problem that it's a well understood factor in systems failures and has been extensively explored in literature with airline pilots, nuclear technicians and TSA X-Ray techs as human factor in engineering.

zkms 9y ago

> The storage facility is normally chilled to –37°C. But the equipment failure allowed temperatures to rise to 40°C, https://www.ualberta.ca/news-and-events/newsarticles/2017/april/freezer-failure-results-in-damage-to-ice-core-collection https://www.ualberta.ca/news-and-events/newsarticles/2017/ap... There's more details about the causes of the failure at that URL: > the refrigeration chillers shut down due to “high head pressure” conditions. Essentially, the chillers were not able to reject their heat through the condenser water system—heat instead of cold circulated through the freezer. > Compounding matters, the system monitoring the freezer temperatures failed due to a database corruption. The freezer’s computer system was actually sending out alarm signals that the temperature was rising, but those signals never made it to the university’s service provider or the on-campus control centre.

architect 9y ago

Totally not sabotage... :/