Grimsvotn volcano erupts in Iceland

Grimsvotn Eruption

Iceland_Airspace_Is_Closed_After_Grimsvotn_Volcano_Erupts


Could see a repeat of last years chaos?

Within several hours, the plume of smoke had rose to an altitude of at least 12 miles (19km) - almost double the height of the nearby Eyjafjoell eruption just over a year ago which peaked at around 5.6 miles (9km).
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Officials say the ash could reach the northern parts of Scotland as early as midday on Tuesday.

And if the eruption continues at the same intensity, it could spread to other parts of the UK, western France and northern Spain by Thursday or Friday.
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what was that radar site we used last year?
 
Superewza said:
Well my worry would have been with the ash impacting on the heat-proof tiles, which are somewhat susceptible to damage and it can have disastrous consequences when they are damaged, but i'm not sure of the physics of the situation - as i said, just the first thing that sprang to mind.
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I wouldnt have thought it matters if the tiles are damaged - if the ash damages them it means the shuttle has re-entered the atmosphere and doesn't need the tiles anymore, given it won't be going back into space ever again anyway.
 
[TW]Fox;19199150 said:
I wouldnt have thought it matters if the tiles are damaged - if the ash damages them it means the shuttle has re-entered the atmosphere and doesn't need the tiles anymore, given it won't be going back into space ever again anyway.
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Yeah, because it didn't matter at all when Columbia had damaged tiles during re-entry... oh wait.
 
[TW]Fox;19199612 said:
Errr during RE-ENTRY.

Surely if the shuttle was to encounter volcano ash it would be AFTER re-entry.

There is no volcano ash in space.
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Re-entry isn't just a single altitude you have to pass. It's not a matter of 'we just need to get through that barrier and it's all fine'. You have to get from low earth orbit to earth, between which i assume the ash cloud would exist.
 
Superewza said:
Re-entry isn't just a single altitude you have to pass. It's not a matter of 'we just need to get through that barrier and it's all fine'. You have to get from low earth orbit to earth, between which i assume the ash cloud would exist.
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A space shuttle is not going through re-entry at 30,000 feet...

Re-entry is surely.. re-entry to the atmosphere. Once you've entered the atmosphere completely, you've re-entered and therefore the tiles are no longer deflecting the massive heat associated with re-entry.

Any ash cloud would be within the atmosphere, not above it?
 
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